ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 30 | #if defined(V8_TARGET_ARCH_MIPS) |
| 31 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 32 | // Note on Mips implementation: |
| 33 | // |
| 34 | // The result_register() for mips is the 'v0' register, which is defined |
| 35 | // by the ABI to contain function return values. However, the first |
| 36 | // parameter to a function is defined to be 'a0'. So there are many |
| 37 | // places where we have to move a previous result in v0 to a0 for the |
| 38 | // next call: mov(a0, v0). This is not needed on the other architectures. |
| 39 | |
| 40 | #include "code-stubs.h" |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 41 | #include "codegen.h" |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 42 | #include "compiler.h" |
| 43 | #include "debug.h" |
| 44 | #include "full-codegen.h" |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 45 | #include "isolate-inl.h" |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 46 | #include "parser.h" |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 47 | #include "scopes.h" |
| 48 | #include "stub-cache.h" |
| 49 | |
| 50 | #include "mips/code-stubs-mips.h" |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 51 | #include "mips/macro-assembler-mips.h" |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 52 | |
| 53 | namespace v8 { |
| 54 | namespace internal { |
| 55 | |
| 56 | #define __ ACCESS_MASM(masm_) |
| 57 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 58 | |
| 59 | // A patch site is a location in the code which it is possible to patch. This |
| 60 | // class has a number of methods to emit the code which is patchable and the |
| 61 | // method EmitPatchInfo to record a marker back to the patchable code. This |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 62 | // marker is a andi zero_reg, rx, #yyyy instruction, and rx * 0x0000ffff + yyyy |
| 63 | // (raw 16 bit immediate value is used) is the delta from the pc to the first |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 64 | // instruction of the patchable code. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 65 | // The marker instruction is effectively a NOP (dest is zero_reg) and will |
| 66 | // never be emitted by normal code. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 67 | class JumpPatchSite BASE_EMBEDDED { |
| 68 | public: |
| 69 | explicit JumpPatchSite(MacroAssembler* masm) : masm_(masm) { |
| 70 | #ifdef DEBUG |
| 71 | info_emitted_ = false; |
| 72 | #endif |
| 73 | } |
| 74 | |
| 75 | ~JumpPatchSite() { |
| 76 | ASSERT(patch_site_.is_bound() == info_emitted_); |
| 77 | } |
| 78 | |
| 79 | // When initially emitting this ensure that a jump is always generated to skip |
| 80 | // the inlined smi code. |
| 81 | void EmitJumpIfNotSmi(Register reg, Label* target) { |
| 82 | ASSERT(!patch_site_.is_bound() && !info_emitted_); |
| 83 | Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_); |
| 84 | __ bind(&patch_site_); |
| 85 | __ andi(at, reg, 0); |
| 86 | // Always taken before patched. |
| 87 | __ Branch(target, eq, at, Operand(zero_reg)); |
| 88 | } |
| 89 | |
| 90 | // When initially emitting this ensure that a jump is never generated to skip |
| 91 | // the inlined smi code. |
| 92 | void EmitJumpIfSmi(Register reg, Label* target) { |
| 93 | Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_); |
| 94 | ASSERT(!patch_site_.is_bound() && !info_emitted_); |
| 95 | __ bind(&patch_site_); |
| 96 | __ andi(at, reg, 0); |
| 97 | // Never taken before patched. |
| 98 | __ Branch(target, ne, at, Operand(zero_reg)); |
| 99 | } |
| 100 | |
| 101 | void EmitPatchInfo() { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 102 | if (patch_site_.is_bound()) { |
| 103 | int delta_to_patch_site = masm_->InstructionsGeneratedSince(&patch_site_); |
| 104 | Register reg = Register::from_code(delta_to_patch_site / kImm16Mask); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 105 | __ andi(zero_reg, reg, delta_to_patch_site % kImm16Mask); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 106 | #ifdef DEBUG |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 107 | info_emitted_ = true; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 108 | #endif |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 109 | } else { |
| 110 | __ nop(); // Signals no inlined code. |
| 111 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 112 | } |
| 113 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 114 | private: |
| 115 | MacroAssembler* masm_; |
| 116 | Label patch_site_; |
| 117 | #ifdef DEBUG |
| 118 | bool info_emitted_; |
| 119 | #endif |
| 120 | }; |
| 121 | |
| 122 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 123 | // Generate code for a JS function. On entry to the function the receiver |
| 124 | // and arguments have been pushed on the stack left to right. The actual |
| 125 | // argument count matches the formal parameter count expected by the |
| 126 | // function. |
| 127 | // |
| 128 | // The live registers are: |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 129 | // o a1: the JS function object being called (i.e. ourselves) |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 130 | // o cp: our context |
| 131 | // o fp: our caller's frame pointer |
| 132 | // o sp: stack pointer |
| 133 | // o ra: return address |
| 134 | // |
| 135 | // The function builds a JS frame. Please see JavaScriptFrameConstants in |
| 136 | // frames-mips.h for its layout. |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 137 | void FullCodeGenerator::Generate() { |
| 138 | CompilationInfo* info = info_; |
mstarzinger@chromium.org | f8c6bd5 | 2011-11-23 12:13:52 +0000 | [diff] [blame] | 139 | handler_table_ = |
| 140 | isolate()->factory()->NewFixedArray(function()->handler_count(), TENURED); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 141 | profiling_counter_ = isolate()->factory()->NewJSGlobalPropertyCell( |
| 142 | Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 143 | SetFunctionPosition(function()); |
| 144 | Comment cmnt(masm_, "[ function compiled by full code generator"); |
| 145 | |
yangguo@chromium.org | a7d3df9 | 2012-02-27 11:46:55 +0000 | [diff] [blame] | 146 | #ifdef DEBUG |
| 147 | if (strlen(FLAG_stop_at) > 0 && |
| 148 | info->function()->name()->IsEqualTo(CStrVector(FLAG_stop_at))) { |
| 149 | __ stop("stop-at"); |
| 150 | } |
| 151 | #endif |
| 152 | |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 153 | // Strict mode functions and builtins need to replace the receiver |
| 154 | // with undefined when called as functions (without an explicit |
| 155 | // receiver object). t1 is zero for method calls and non-zero for |
| 156 | // function calls. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 157 | if (!info->is_classic_mode() || info->is_native()) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 158 | Label ok; |
| 159 | __ Branch(&ok, eq, t1, Operand(zero_reg)); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 160 | int receiver_offset = info->scope()->num_parameters() * kPointerSize; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 161 | __ LoadRoot(a2, Heap::kUndefinedValueRootIndex); |
| 162 | __ sw(a2, MemOperand(sp, receiver_offset)); |
| 163 | __ bind(&ok); |
| 164 | } |
| 165 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 166 | // Open a frame scope to indicate that there is a frame on the stack. The |
| 167 | // MANUAL indicates that the scope shouldn't actually generate code to set up |
| 168 | // the frame (that is done below). |
| 169 | FrameScope frame_scope(masm_, StackFrame::MANUAL); |
| 170 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 171 | int locals_count = info->scope()->num_stack_slots(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 172 | |
| 173 | __ Push(ra, fp, cp, a1); |
| 174 | if (locals_count > 0) { |
| 175 | // Load undefined value here, so the value is ready for the loop |
| 176 | // below. |
| 177 | __ LoadRoot(at, Heap::kUndefinedValueRootIndex); |
| 178 | } |
| 179 | // Adjust fp to point to caller's fp. |
| 180 | __ Addu(fp, sp, Operand(2 * kPointerSize)); |
| 181 | |
| 182 | { Comment cmnt(masm_, "[ Allocate locals"); |
| 183 | for (int i = 0; i < locals_count; i++) { |
| 184 | __ push(at); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | bool function_in_register = true; |
| 189 | |
| 190 | // Possibly allocate a local context. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 191 | int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 192 | if (heap_slots > 0) { |
| 193 | Comment cmnt(masm_, "[ Allocate local context"); |
| 194 | // Argument to NewContext is the function, which is in a1. |
| 195 | __ push(a1); |
| 196 | if (heap_slots <= FastNewContextStub::kMaximumSlots) { |
| 197 | FastNewContextStub stub(heap_slots); |
| 198 | __ CallStub(&stub); |
| 199 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 200 | __ CallRuntime(Runtime::kNewFunctionContext, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 201 | } |
| 202 | function_in_register = false; |
| 203 | // Context is returned in both v0 and cp. It replaces the context |
| 204 | // passed to us. It's saved in the stack and kept live in cp. |
| 205 | __ sw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 206 | // Copy any necessary parameters into the context. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 207 | int num_parameters = info->scope()->num_parameters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 208 | for (int i = 0; i < num_parameters; i++) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 209 | Variable* var = scope()->parameter(i); |
| 210 | if (var->IsContextSlot()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 211 | int parameter_offset = StandardFrameConstants::kCallerSPOffset + |
| 212 | (num_parameters - 1 - i) * kPointerSize; |
| 213 | // Load parameter from stack. |
| 214 | __ lw(a0, MemOperand(fp, parameter_offset)); |
| 215 | // Store it in the context. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 216 | MemOperand target = ContextOperand(cp, var->index()); |
| 217 | __ sw(a0, target); |
| 218 | |
| 219 | // Update the write barrier. |
| 220 | __ RecordWriteContextSlot( |
| 221 | cp, target.offset(), a0, a3, kRAHasBeenSaved, kDontSaveFPRegs); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 222 | } |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | Variable* arguments = scope()->arguments(); |
| 227 | if (arguments != NULL) { |
| 228 | // Function uses arguments object. |
| 229 | Comment cmnt(masm_, "[ Allocate arguments object"); |
| 230 | if (!function_in_register) { |
| 231 | // Load this again, if it's used by the local context below. |
| 232 | __ lw(a3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 233 | } else { |
| 234 | __ mov(a3, a1); |
| 235 | } |
| 236 | // Receiver is just before the parameters on the caller's stack. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 237 | int num_parameters = info->scope()->num_parameters(); |
| 238 | int offset = num_parameters * kPointerSize; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 239 | __ Addu(a2, fp, |
| 240 | Operand(StandardFrameConstants::kCallerSPOffset + offset)); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 241 | __ li(a1, Operand(Smi::FromInt(num_parameters))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 242 | __ Push(a3, a2, a1); |
| 243 | |
| 244 | // Arguments to ArgumentsAccessStub: |
| 245 | // function, receiver address, parameter count. |
| 246 | // The stub will rewrite receiever and parameter count if the previous |
| 247 | // stack frame was an arguments adapter frame. |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 248 | ArgumentsAccessStub::Type type; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 249 | if (!is_classic_mode()) { |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 250 | type = ArgumentsAccessStub::NEW_STRICT; |
| 251 | } else if (function()->has_duplicate_parameters()) { |
| 252 | type = ArgumentsAccessStub::NEW_NON_STRICT_SLOW; |
| 253 | } else { |
| 254 | type = ArgumentsAccessStub::NEW_NON_STRICT_FAST; |
| 255 | } |
| 256 | ArgumentsAccessStub stub(type); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 257 | __ CallStub(&stub); |
| 258 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 259 | SetVar(arguments, v0, a1, a2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | if (FLAG_trace) { |
| 263 | __ CallRuntime(Runtime::kTraceEnter, 0); |
| 264 | } |
| 265 | |
| 266 | // Visit the declarations and body unless there is an illegal |
| 267 | // redeclaration. |
| 268 | if (scope()->HasIllegalRedeclaration()) { |
| 269 | Comment cmnt(masm_, "[ Declarations"); |
| 270 | scope()->VisitIllegalRedeclaration(this); |
| 271 | |
| 272 | } else { |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 273 | PrepareForBailoutForId(AstNode::kFunctionEntryId, NO_REGISTERS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 274 | { Comment cmnt(masm_, "[ Declarations"); |
| 275 | // For named function expressions, declare the function name as a |
| 276 | // constant. |
| 277 | if (scope()->is_function_scope() && scope()->function() != NULL) { |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 278 | VariableDeclaration* function = scope()->function(); |
| 279 | ASSERT(function->proxy()->var()->mode() == CONST || |
| 280 | function->proxy()->var()->mode() == CONST_HARMONY); |
| 281 | ASSERT(function->proxy()->var()->location() != Variable::UNALLOCATED); |
| 282 | VisitVariableDeclaration(function); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 283 | } |
| 284 | VisitDeclarations(scope()->declarations()); |
| 285 | } |
| 286 | |
| 287 | { Comment cmnt(masm_, "[ Stack check"); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 288 | PrepareForBailoutForId(AstNode::kDeclarationsId, NO_REGISTERS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 289 | Label ok; |
| 290 | __ LoadRoot(t0, Heap::kStackLimitRootIndex); |
| 291 | __ Branch(&ok, hs, sp, Operand(t0)); |
| 292 | StackCheckStub stub; |
| 293 | __ CallStub(&stub); |
| 294 | __ bind(&ok); |
| 295 | } |
| 296 | |
| 297 | { Comment cmnt(masm_, "[ Body"); |
| 298 | ASSERT(loop_depth() == 0); |
| 299 | VisitStatements(function()->body()); |
| 300 | ASSERT(loop_depth() == 0); |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | // Always emit a 'return undefined' in case control fell off the end of |
| 305 | // the body. |
| 306 | { Comment cmnt(masm_, "[ return <undefined>;"); |
| 307 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 308 | } |
| 309 | EmitReturnSequence(); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | |
| 313 | void FullCodeGenerator::ClearAccumulator() { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 314 | ASSERT(Smi::FromInt(0) == 0); |
| 315 | __ mov(v0, zero_reg); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 316 | } |
| 317 | |
| 318 | |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 319 | void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) { |
| 320 | __ li(a2, Operand(profiling_counter_)); |
| 321 | __ lw(a3, FieldMemOperand(a2, JSGlobalPropertyCell::kValueOffset)); |
| 322 | __ Subu(a3, a3, Operand(Smi::FromInt(delta))); |
| 323 | __ sw(a3, FieldMemOperand(a2, JSGlobalPropertyCell::kValueOffset)); |
| 324 | } |
| 325 | |
| 326 | |
| 327 | void FullCodeGenerator::EmitProfilingCounterReset() { |
| 328 | int reset_value = FLAG_interrupt_budget; |
| 329 | if (info_->ShouldSelfOptimize() && !FLAG_retry_self_opt) { |
| 330 | // Self-optimization is a one-off thing: if it fails, don't try again. |
| 331 | reset_value = Smi::kMaxValue; |
| 332 | } |
| 333 | if (isolate()->IsDebuggerActive()) { |
| 334 | // Detect debug break requests as soon as possible. |
| 335 | reset_value = 10; |
| 336 | } |
| 337 | __ li(a2, Operand(profiling_counter_)); |
| 338 | __ li(a3, Operand(Smi::FromInt(reset_value))); |
| 339 | __ sw(a3, FieldMemOperand(a2, JSGlobalPropertyCell::kValueOffset)); |
| 340 | } |
| 341 | |
| 342 | |
| 343 | static const int kMaxBackEdgeWeight = 127; |
| 344 | static const int kBackEdgeDistanceDivisor = 142; |
| 345 | |
| 346 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 347 | void FullCodeGenerator::EmitStackCheck(IterationStatement* stmt, |
| 348 | Label* back_edge_target) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 349 | // The generated code is used in Deoptimizer::PatchStackCheckCodeAt so we need |
| 350 | // to make sure it is constant. Branch may emit a skip-or-jump sequence |
| 351 | // instead of the normal Branch. It seems that the "skip" part of that |
| 352 | // sequence is about as long as this Branch would be so it is safe to ignore |
| 353 | // that. |
| 354 | Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 355 | Comment cmnt(masm_, "[ Stack check"); |
| 356 | Label ok; |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 357 | if (FLAG_count_based_interrupts) { |
| 358 | int weight = 1; |
| 359 | if (FLAG_weighted_back_edges) { |
| 360 | ASSERT(back_edge_target->is_bound()); |
| 361 | int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target); |
| 362 | weight = Min(kMaxBackEdgeWeight, |
| 363 | Max(1, distance / kBackEdgeDistanceDivisor)); |
| 364 | } |
| 365 | EmitProfilingCounterDecrement(weight); |
| 366 | __ slt(at, a3, zero_reg); |
| 367 | __ beq(at, zero_reg, &ok); |
| 368 | // CallStub will emit a li t9 first, so it is safe to use the delay slot. |
| 369 | InterruptStub stub; |
| 370 | __ CallStub(&stub); |
| 371 | } else { |
| 372 | __ LoadRoot(t0, Heap::kStackLimitRootIndex); |
| 373 | __ sltu(at, sp, t0); |
| 374 | __ beq(at, zero_reg, &ok); |
| 375 | // CallStub will emit a li t9 first, so it is safe to use the delay slot. |
| 376 | StackCheckStub stub; |
| 377 | __ CallStub(&stub); |
| 378 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 379 | // Record a mapping of this PC offset to the OSR id. This is used to find |
| 380 | // the AST id from the unoptimized code in order to use it as a key into |
| 381 | // the deoptimization input data found in the optimized code. |
| 382 | RecordStackCheck(stmt->OsrEntryId()); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 383 | if (FLAG_count_based_interrupts) { |
| 384 | EmitProfilingCounterReset(); |
| 385 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 386 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 387 | __ bind(&ok); |
| 388 | PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS); |
| 389 | // Record a mapping of the OSR id to this PC. This is used if the OSR |
| 390 | // entry becomes the target of a bailout. We don't expect it to be, but |
| 391 | // we want it to work if it is. |
| 392 | PrepareForBailoutForId(stmt->OsrEntryId(), NO_REGISTERS); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 393 | } |
| 394 | |
| 395 | |
ager@chromium.org | 2cc82ae | 2010-06-14 07:35:38 +0000 | [diff] [blame] | 396 | void FullCodeGenerator::EmitReturnSequence() { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 397 | Comment cmnt(masm_, "[ Return sequence"); |
| 398 | if (return_label_.is_bound()) { |
| 399 | __ Branch(&return_label_); |
| 400 | } else { |
| 401 | __ bind(&return_label_); |
| 402 | if (FLAG_trace) { |
| 403 | // Push the return value on the stack as the parameter. |
| 404 | // Runtime::TraceExit returns its parameter in v0. |
| 405 | __ push(v0); |
| 406 | __ CallRuntime(Runtime::kTraceExit, 1); |
| 407 | } |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 408 | if (FLAG_interrupt_at_exit || FLAG_self_optimization) { |
| 409 | // Pretend that the exit is a backwards jump to the entry. |
| 410 | int weight = 1; |
| 411 | if (info_->ShouldSelfOptimize()) { |
| 412 | weight = FLAG_interrupt_budget / FLAG_self_opt_count; |
| 413 | } else if (FLAG_weighted_back_edges) { |
| 414 | int distance = masm_->pc_offset(); |
| 415 | weight = Min(kMaxBackEdgeWeight, |
| 416 | Max(1, distance / kBackEdgeDistanceDivisor)); |
| 417 | } |
| 418 | EmitProfilingCounterDecrement(weight); |
| 419 | Label ok; |
| 420 | __ Branch(&ok, ge, a3, Operand(zero_reg)); |
| 421 | __ push(v0); |
| 422 | if (info_->ShouldSelfOptimize() && FLAG_direct_self_opt) { |
| 423 | __ lw(a2, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 424 | __ push(a2); |
| 425 | __ CallRuntime(Runtime::kOptimizeFunctionOnNextCall, 1); |
| 426 | } else { |
| 427 | InterruptStub stub; |
| 428 | __ CallStub(&stub); |
| 429 | } |
| 430 | __ pop(v0); |
| 431 | EmitProfilingCounterReset(); |
| 432 | __ bind(&ok); |
| 433 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 434 | |
| 435 | #ifdef DEBUG |
| 436 | // Add a label for checking the size of the code used for returning. |
| 437 | Label check_exit_codesize; |
| 438 | masm_->bind(&check_exit_codesize); |
| 439 | #endif |
| 440 | // Make sure that the constant pool is not emitted inside of the return |
| 441 | // sequence. |
| 442 | { Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_); |
| 443 | // Here we use masm_-> instead of the __ macro to avoid the code coverage |
| 444 | // tool from instrumenting as we rely on the code size here. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 445 | int32_t sp_delta = (info_->scope()->num_parameters() + 1) * kPointerSize; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 446 | CodeGenerator::RecordPositions(masm_, function()->end_position() - 1); |
| 447 | __ RecordJSReturn(); |
| 448 | masm_->mov(sp, fp); |
| 449 | masm_->MultiPop(static_cast<RegList>(fp.bit() | ra.bit())); |
| 450 | masm_->Addu(sp, sp, Operand(sp_delta)); |
| 451 | masm_->Jump(ra); |
| 452 | } |
| 453 | |
| 454 | #ifdef DEBUG |
| 455 | // Check that the size of the code used for returning is large enough |
| 456 | // for the debugger's requirements. |
| 457 | ASSERT(Assembler::kJSReturnSequenceInstructions <= |
| 458 | masm_->InstructionsGeneratedSince(&check_exit_codesize)); |
| 459 | #endif |
| 460 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 464 | void FullCodeGenerator::EffectContext::Plug(Variable* var) const { |
| 465 | ASSERT(var->IsStackAllocated() || var->IsContextSlot()); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 466 | } |
| 467 | |
| 468 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 469 | void FullCodeGenerator::AccumulatorValueContext::Plug(Variable* var) const { |
| 470 | ASSERT(var->IsStackAllocated() || var->IsContextSlot()); |
| 471 | codegen()->GetVar(result_register(), var); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 475 | void FullCodeGenerator::StackValueContext::Plug(Variable* var) const { |
| 476 | ASSERT(var->IsStackAllocated() || var->IsContextSlot()); |
| 477 | codegen()->GetVar(result_register(), var); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 478 | __ push(result_register()); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 482 | void FullCodeGenerator::TestContext::Plug(Variable* var) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 483 | // For simplicity we always test the accumulator register. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 484 | codegen()->GetVar(result_register(), var); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 485 | codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 486 | codegen()->DoTest(this); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 490 | void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 494 | void FullCodeGenerator::AccumulatorValueContext::Plug( |
| 495 | Heap::RootListIndex index) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 496 | __ LoadRoot(result_register(), index); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | |
| 500 | void FullCodeGenerator::StackValueContext::Plug( |
| 501 | Heap::RootListIndex index) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 502 | __ LoadRoot(result_register(), index); |
| 503 | __ push(result_register()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 504 | } |
| 505 | |
| 506 | |
| 507 | void FullCodeGenerator::TestContext::Plug(Heap::RootListIndex index) const { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 508 | codegen()->PrepareForBailoutBeforeSplit(condition(), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 509 | true, |
| 510 | true_label_, |
| 511 | false_label_); |
| 512 | if (index == Heap::kUndefinedValueRootIndex || |
| 513 | index == Heap::kNullValueRootIndex || |
| 514 | index == Heap::kFalseValueRootIndex) { |
| 515 | if (false_label_ != fall_through_) __ Branch(false_label_); |
| 516 | } else if (index == Heap::kTrueValueRootIndex) { |
| 517 | if (true_label_ != fall_through_) __ Branch(true_label_); |
| 518 | } else { |
| 519 | __ LoadRoot(result_register(), index); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 520 | codegen()->DoTest(this); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 521 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | |
| 525 | void FullCodeGenerator::EffectContext::Plug(Handle<Object> lit) const { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | |
| 529 | void FullCodeGenerator::AccumulatorValueContext::Plug( |
| 530 | Handle<Object> lit) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 531 | __ li(result_register(), Operand(lit)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 532 | } |
| 533 | |
| 534 | |
| 535 | void FullCodeGenerator::StackValueContext::Plug(Handle<Object> lit) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 536 | // Immediates cannot be pushed directly. |
| 537 | __ li(result_register(), Operand(lit)); |
| 538 | __ push(result_register()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 539 | } |
| 540 | |
| 541 | |
| 542 | void FullCodeGenerator::TestContext::Plug(Handle<Object> lit) const { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 543 | codegen()->PrepareForBailoutBeforeSplit(condition(), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 544 | true, |
| 545 | true_label_, |
| 546 | false_label_); |
| 547 | ASSERT(!lit->IsUndetectableObject()); // There are no undetectable literals. |
| 548 | if (lit->IsUndefined() || lit->IsNull() || lit->IsFalse()) { |
| 549 | if (false_label_ != fall_through_) __ Branch(false_label_); |
| 550 | } else if (lit->IsTrue() || lit->IsJSObject()) { |
| 551 | if (true_label_ != fall_through_) __ Branch(true_label_); |
| 552 | } else if (lit->IsString()) { |
| 553 | if (String::cast(*lit)->length() == 0) { |
| 554 | if (false_label_ != fall_through_) __ Branch(false_label_); |
| 555 | } else { |
| 556 | if (true_label_ != fall_through_) __ Branch(true_label_); |
| 557 | } |
| 558 | } else if (lit->IsSmi()) { |
| 559 | if (Smi::cast(*lit)->value() == 0) { |
| 560 | if (false_label_ != fall_through_) __ Branch(false_label_); |
| 561 | } else { |
| 562 | if (true_label_ != fall_through_) __ Branch(true_label_); |
| 563 | } |
| 564 | } else { |
| 565 | // For simplicity we always test the accumulator register. |
| 566 | __ li(result_register(), Operand(lit)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 567 | codegen()->DoTest(this); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 568 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 569 | } |
| 570 | |
| 571 | |
| 572 | void FullCodeGenerator::EffectContext::DropAndPlug(int count, |
| 573 | Register reg) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 574 | ASSERT(count > 0); |
| 575 | __ Drop(count); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | |
| 579 | void FullCodeGenerator::AccumulatorValueContext::DropAndPlug( |
| 580 | int count, |
| 581 | Register reg) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 582 | ASSERT(count > 0); |
| 583 | __ Drop(count); |
| 584 | __ Move(result_register(), reg); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | |
| 588 | void FullCodeGenerator::StackValueContext::DropAndPlug(int count, |
| 589 | Register reg) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 590 | ASSERT(count > 0); |
| 591 | if (count > 1) __ Drop(count - 1); |
| 592 | __ sw(reg, MemOperand(sp, 0)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 593 | } |
| 594 | |
| 595 | |
| 596 | void FullCodeGenerator::TestContext::DropAndPlug(int count, |
| 597 | Register reg) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 598 | ASSERT(count > 0); |
| 599 | // For simplicity we always test the accumulator register. |
| 600 | __ Drop(count); |
| 601 | __ Move(result_register(), reg); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 602 | codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 603 | codegen()->DoTest(this); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 604 | } |
| 605 | |
| 606 | |
| 607 | void FullCodeGenerator::EffectContext::Plug(Label* materialize_true, |
| 608 | Label* materialize_false) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 609 | ASSERT(materialize_true == materialize_false); |
| 610 | __ bind(materialize_true); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 611 | } |
| 612 | |
| 613 | |
| 614 | void FullCodeGenerator::AccumulatorValueContext::Plug( |
| 615 | Label* materialize_true, |
| 616 | Label* materialize_false) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 617 | Label done; |
| 618 | __ bind(materialize_true); |
| 619 | __ LoadRoot(result_register(), Heap::kTrueValueRootIndex); |
| 620 | __ Branch(&done); |
| 621 | __ bind(materialize_false); |
| 622 | __ LoadRoot(result_register(), Heap::kFalseValueRootIndex); |
| 623 | __ bind(&done); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | |
| 627 | void FullCodeGenerator::StackValueContext::Plug( |
| 628 | Label* materialize_true, |
| 629 | Label* materialize_false) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 630 | Label done; |
| 631 | __ bind(materialize_true); |
| 632 | __ LoadRoot(at, Heap::kTrueValueRootIndex); |
| 633 | __ push(at); |
| 634 | __ Branch(&done); |
| 635 | __ bind(materialize_false); |
| 636 | __ LoadRoot(at, Heap::kFalseValueRootIndex); |
| 637 | __ push(at); |
| 638 | __ bind(&done); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 639 | } |
| 640 | |
| 641 | |
| 642 | void FullCodeGenerator::TestContext::Plug(Label* materialize_true, |
| 643 | Label* materialize_false) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 644 | ASSERT(materialize_true == true_label_); |
| 645 | ASSERT(materialize_false == false_label_); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 646 | } |
| 647 | |
| 648 | |
| 649 | void FullCodeGenerator::EffectContext::Plug(bool flag) const { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | |
| 653 | void FullCodeGenerator::AccumulatorValueContext::Plug(bool flag) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 654 | Heap::RootListIndex value_root_index = |
| 655 | flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex; |
| 656 | __ LoadRoot(result_register(), value_root_index); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | |
| 660 | void FullCodeGenerator::StackValueContext::Plug(bool flag) const { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 661 | Heap::RootListIndex value_root_index = |
| 662 | flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex; |
| 663 | __ LoadRoot(at, value_root_index); |
| 664 | __ push(at); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 665 | } |
| 666 | |
| 667 | |
| 668 | void FullCodeGenerator::TestContext::Plug(bool flag) const { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 669 | codegen()->PrepareForBailoutBeforeSplit(condition(), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 670 | true, |
| 671 | true_label_, |
| 672 | false_label_); |
| 673 | if (flag) { |
| 674 | if (true_label_ != fall_through_) __ Branch(true_label_); |
| 675 | } else { |
| 676 | if (false_label_ != fall_through_) __ Branch(false_label_); |
| 677 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 678 | } |
| 679 | |
| 680 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 681 | void FullCodeGenerator::DoTest(Expression* condition, |
| 682 | Label* if_true, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 683 | Label* if_false, |
| 684 | Label* fall_through) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 685 | if (CpuFeatures::IsSupported(FPU)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 686 | ToBooleanStub stub(result_register()); |
| 687 | __ CallStub(&stub); |
| 688 | __ mov(at, zero_reg); |
| 689 | } else { |
| 690 | // Call the runtime to find the boolean value of the source and then |
| 691 | // translate it into control flow to the pair of labels. |
| 692 | __ push(result_register()); |
| 693 | __ CallRuntime(Runtime::kToBool, 1); |
| 694 | __ LoadRoot(at, Heap::kFalseValueRootIndex); |
| 695 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 696 | Split(ne, v0, Operand(at), if_true, if_false, fall_through); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 697 | } |
| 698 | |
| 699 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 700 | void FullCodeGenerator::Split(Condition cc, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 701 | Register lhs, |
| 702 | const Operand& rhs, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 703 | Label* if_true, |
| 704 | Label* if_false, |
| 705 | Label* fall_through) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 706 | if (if_false == fall_through) { |
| 707 | __ Branch(if_true, cc, lhs, rhs); |
| 708 | } else if (if_true == fall_through) { |
| 709 | __ Branch(if_false, NegateCondition(cc), lhs, rhs); |
| 710 | } else { |
| 711 | __ Branch(if_true, cc, lhs, rhs); |
| 712 | __ Branch(if_false); |
| 713 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 714 | } |
| 715 | |
| 716 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 717 | MemOperand FullCodeGenerator::StackOperand(Variable* var) { |
| 718 | ASSERT(var->IsStackAllocated()); |
| 719 | // Offset is negative because higher indexes are at lower addresses. |
| 720 | int offset = -var->index() * kPointerSize; |
| 721 | // Adjust by a (parameter or local) base offset. |
| 722 | if (var->IsParameter()) { |
| 723 | offset += (info_->scope()->num_parameters() + 1) * kPointerSize; |
| 724 | } else { |
| 725 | offset += JavaScriptFrameConstants::kLocal0Offset; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 726 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 727 | return MemOperand(fp, offset); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 728 | } |
| 729 | |
| 730 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 731 | MemOperand FullCodeGenerator::VarOperand(Variable* var, Register scratch) { |
| 732 | ASSERT(var->IsContextSlot() || var->IsStackAllocated()); |
| 733 | if (var->IsContextSlot()) { |
| 734 | int context_chain_length = scope()->ContextChainLength(var->scope()); |
| 735 | __ LoadContext(scratch, context_chain_length); |
| 736 | return ContextOperand(scratch, var->index()); |
| 737 | } else { |
| 738 | return StackOperand(var); |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | |
| 743 | void FullCodeGenerator::GetVar(Register dest, Variable* var) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 744 | // Use destination as scratch. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 745 | MemOperand location = VarOperand(var, dest); |
| 746 | __ lw(dest, location); |
| 747 | } |
| 748 | |
| 749 | |
| 750 | void FullCodeGenerator::SetVar(Variable* var, |
| 751 | Register src, |
| 752 | Register scratch0, |
| 753 | Register scratch1) { |
| 754 | ASSERT(var->IsContextSlot() || var->IsStackAllocated()); |
| 755 | ASSERT(!scratch0.is(src)); |
| 756 | ASSERT(!scratch0.is(scratch1)); |
| 757 | ASSERT(!scratch1.is(src)); |
| 758 | MemOperand location = VarOperand(var, scratch0); |
| 759 | __ sw(src, location); |
| 760 | // Emit the write barrier code if the location is in the heap. |
| 761 | if (var->IsContextSlot()) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 762 | __ RecordWriteContextSlot(scratch0, |
| 763 | location.offset(), |
| 764 | src, |
| 765 | scratch1, |
| 766 | kRAHasBeenSaved, |
| 767 | kDontSaveFPRegs); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 768 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 769 | } |
| 770 | |
| 771 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 772 | void FullCodeGenerator::PrepareForBailoutBeforeSplit(Expression* expr, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 773 | bool should_normalize, |
| 774 | Label* if_true, |
| 775 | Label* if_false) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 776 | // Only prepare for bailouts before splits if we're in a test |
| 777 | // context. Otherwise, we let the Visit function deal with the |
| 778 | // preparation to avoid preparing with the same AST id twice. |
| 779 | if (!context()->IsTest() || !info_->IsOptimizable()) return; |
| 780 | |
| 781 | Label skip; |
| 782 | if (should_normalize) __ Branch(&skip); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 783 | PrepareForBailout(expr, TOS_REG); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 784 | if (should_normalize) { |
| 785 | __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
| 786 | Split(eq, a0, Operand(t0), if_true, if_false, NULL); |
| 787 | __ bind(&skip); |
| 788 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 789 | } |
| 790 | |
| 791 | |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 792 | void FullCodeGenerator::EmitDebugCheckDeclarationContext(Variable* variable) { |
| 793 | // The variable in the declaration always resides in the current function |
| 794 | // context. |
| 795 | ASSERT_EQ(0, scope()->ContextChainLength(variable->scope())); |
| 796 | if (FLAG_debug_code) { |
| 797 | // Check that we're not inside a with or catch context. |
| 798 | __ lw(a1, FieldMemOperand(cp, HeapObject::kMapOffset)); |
| 799 | __ LoadRoot(t0, Heap::kWithContextMapRootIndex); |
| 800 | __ Check(ne, "Declaration in with context.", |
| 801 | a1, Operand(t0)); |
| 802 | __ LoadRoot(t0, Heap::kCatchContextMapRootIndex); |
| 803 | __ Check(ne, "Declaration in catch context.", |
| 804 | a1, Operand(t0)); |
| 805 | } |
| 806 | } |
| 807 | |
| 808 | |
| 809 | void FullCodeGenerator::VisitVariableDeclaration( |
| 810 | VariableDeclaration* declaration) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 811 | // If it was not possible to allocate the variable at compile time, we |
| 812 | // need to "declare" it at runtime to make sure it actually exists in the |
| 813 | // local context. |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 814 | VariableProxy* proxy = declaration->proxy(); |
| 815 | VariableMode mode = declaration->mode(); |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 816 | Variable* variable = proxy->var(); |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 817 | bool hole_init = mode == CONST || mode == CONST_HARMONY || mode == LET; |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 818 | switch (variable->location()) { |
| 819 | case Variable::UNALLOCATED: |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 820 | globals_->Add(variable->name()); |
| 821 | globals_->Add(variable->binding_needs_init() |
| 822 | ? isolate()->factory()->the_hole_value() |
| 823 | : isolate()->factory()->undefined_value()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 824 | break; |
| 825 | |
| 826 | case Variable::PARAMETER: |
| 827 | case Variable::LOCAL: |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 828 | if (hole_init) { |
| 829 | Comment cmnt(masm_, "[ VariableDeclaration"); |
| 830 | __ LoadRoot(t0, Heap::kTheHoleValueRootIndex); |
| 831 | __ sw(t0, StackOperand(variable)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 832 | } |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 833 | break; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 834 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 835 | case Variable::CONTEXT: |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 836 | if (hole_init) { |
| 837 | Comment cmnt(masm_, "[ VariableDeclaration"); |
| 838 | EmitDebugCheckDeclarationContext(variable); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 839 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 840 | __ sw(at, ContextOperand(cp, variable->index())); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 841 | // No write barrier since the_hole_value is in old space. |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 842 | PrepareForBailoutForId(proxy->id(), NO_REGISTERS); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 843 | } |
| 844 | break; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 845 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 846 | case Variable::LOOKUP: { |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 847 | Comment cmnt(masm_, "[ VariableDeclaration"); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 848 | __ li(a2, Operand(variable->name())); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 849 | // Declaration nodes are always introduced in one of four modes. |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 850 | ASSERT(mode == VAR || mode == LET || |
| 851 | mode == CONST || mode == CONST_HARMONY); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 852 | PropertyAttributes attr = (mode == CONST || mode == CONST_HARMONY) |
| 853 | ? READ_ONLY : NONE; |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 854 | __ li(a1, Operand(Smi::FromInt(attr))); |
| 855 | // Push initial value, if any. |
| 856 | // Note: For variables we must not push an initial value (such as |
| 857 | // 'undefined') because we may have a (legal) redeclaration and we |
| 858 | // must not destroy the current value. |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 859 | if (hole_init) { |
| 860 | __ LoadRoot(a0, Heap::kTheHoleValueRootIndex); |
| 861 | __ Push(cp, a2, a1, a0); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 862 | } else { |
| 863 | ASSERT(Smi::FromInt(0) == 0); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 864 | __ mov(a0, zero_reg); // Smi::FromInt(0) indicates no initial value. |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 865 | __ Push(cp, a2, a1, a0); |
| 866 | } |
| 867 | __ CallRuntime(Runtime::kDeclareContextSlot, 4); |
| 868 | break; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 869 | } |
| 870 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 871 | } |
| 872 | |
| 873 | |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 874 | void FullCodeGenerator::VisitFunctionDeclaration( |
| 875 | FunctionDeclaration* declaration) { |
| 876 | VariableProxy* proxy = declaration->proxy(); |
| 877 | Variable* variable = proxy->var(); |
| 878 | switch (variable->location()) { |
| 879 | case Variable::UNALLOCATED: { |
| 880 | globals_->Add(variable->name()); |
| 881 | Handle<SharedFunctionInfo> function = |
| 882 | Compiler::BuildFunctionInfo(declaration->fun(), script()); |
| 883 | // Check for stack-overflow exception. |
| 884 | if (function.is_null()) return SetStackOverflow(); |
| 885 | globals_->Add(function); |
| 886 | break; |
| 887 | } |
| 888 | |
| 889 | case Variable::PARAMETER: |
| 890 | case Variable::LOCAL: { |
| 891 | Comment cmnt(masm_, "[ FunctionDeclaration"); |
| 892 | VisitForAccumulatorValue(declaration->fun()); |
| 893 | __ sw(result_register(), StackOperand(variable)); |
| 894 | break; |
| 895 | } |
| 896 | |
| 897 | case Variable::CONTEXT: { |
| 898 | Comment cmnt(masm_, "[ FunctionDeclaration"); |
| 899 | EmitDebugCheckDeclarationContext(variable); |
| 900 | VisitForAccumulatorValue(declaration->fun()); |
| 901 | __ sw(result_register(), ContextOperand(cp, variable->index())); |
| 902 | int offset = Context::SlotOffset(variable->index()); |
| 903 | // We know that we have written a function, which is not a smi. |
| 904 | __ RecordWriteContextSlot(cp, |
| 905 | offset, |
| 906 | result_register(), |
| 907 | a2, |
| 908 | kRAHasBeenSaved, |
| 909 | kDontSaveFPRegs, |
| 910 | EMIT_REMEMBERED_SET, |
| 911 | OMIT_SMI_CHECK); |
| 912 | PrepareForBailoutForId(proxy->id(), NO_REGISTERS); |
| 913 | break; |
| 914 | } |
| 915 | |
| 916 | case Variable::LOOKUP: { |
| 917 | Comment cmnt(masm_, "[ FunctionDeclaration"); |
| 918 | __ li(a2, Operand(variable->name())); |
| 919 | __ li(a1, Operand(Smi::FromInt(NONE))); |
| 920 | __ Push(cp, a2, a1); |
| 921 | // Push initial value for function declaration. |
| 922 | VisitForStackValue(declaration->fun()); |
| 923 | __ CallRuntime(Runtime::kDeclareContextSlot, 4); |
| 924 | break; |
| 925 | } |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | |
| 930 | void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) { |
| 931 | VariableProxy* proxy = declaration->proxy(); |
| 932 | Variable* variable = proxy->var(); |
| 933 | Handle<JSModule> instance = declaration->module()->interface()->Instance(); |
| 934 | ASSERT(!instance.is_null()); |
| 935 | |
| 936 | switch (variable->location()) { |
| 937 | case Variable::UNALLOCATED: { |
| 938 | Comment cmnt(masm_, "[ ModuleDeclaration"); |
| 939 | globals_->Add(variable->name()); |
| 940 | globals_->Add(instance); |
| 941 | Visit(declaration->module()); |
| 942 | break; |
| 943 | } |
| 944 | |
| 945 | case Variable::CONTEXT: { |
| 946 | Comment cmnt(masm_, "[ ModuleDeclaration"); |
| 947 | EmitDebugCheckDeclarationContext(variable); |
| 948 | __ li(a1, Operand(instance)); |
| 949 | __ sw(a1, ContextOperand(cp, variable->index())); |
| 950 | Visit(declaration->module()); |
| 951 | break; |
| 952 | } |
| 953 | |
| 954 | case Variable::PARAMETER: |
| 955 | case Variable::LOCAL: |
| 956 | case Variable::LOOKUP: |
| 957 | UNREACHABLE(); |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | |
| 962 | void FullCodeGenerator::VisitImportDeclaration(ImportDeclaration* declaration) { |
| 963 | VariableProxy* proxy = declaration->proxy(); |
| 964 | Variable* variable = proxy->var(); |
| 965 | switch (variable->location()) { |
| 966 | case Variable::UNALLOCATED: |
| 967 | // TODO(rossberg) |
| 968 | break; |
| 969 | |
| 970 | case Variable::CONTEXT: { |
| 971 | Comment cmnt(masm_, "[ ImportDeclaration"); |
| 972 | EmitDebugCheckDeclarationContext(variable); |
| 973 | // TODO(rossberg) |
| 974 | break; |
| 975 | } |
| 976 | |
| 977 | case Variable::PARAMETER: |
| 978 | case Variable::LOCAL: |
| 979 | case Variable::LOOKUP: |
| 980 | UNREACHABLE(); |
| 981 | } |
| 982 | } |
| 983 | |
| 984 | |
| 985 | void FullCodeGenerator::VisitExportDeclaration(ExportDeclaration* declaration) { |
| 986 | // TODO(rossberg) |
| 987 | } |
| 988 | |
| 989 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 990 | void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 991 | // Call the runtime to declare the globals. |
| 992 | // The context is the first argument. |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 993 | __ li(a1, Operand(pairs)); |
| 994 | __ li(a0, Operand(Smi::FromInt(DeclareGlobalsFlags()))); |
| 995 | __ Push(cp, a1, a0); |
| 996 | __ CallRuntime(Runtime::kDeclareGlobals, 3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 997 | // Return value is ignored. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 998 | } |
| 999 | |
| 1000 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1001 | void FullCodeGenerator::VisitSwitchStatement(SwitchStatement* stmt) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1002 | Comment cmnt(masm_, "[ SwitchStatement"); |
| 1003 | Breakable nested_statement(this, stmt); |
| 1004 | SetStatementPosition(stmt); |
| 1005 | |
| 1006 | // Keep the switch value on the stack until a case matches. |
| 1007 | VisitForStackValue(stmt->tag()); |
| 1008 | PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS); |
| 1009 | |
| 1010 | ZoneList<CaseClause*>* clauses = stmt->cases(); |
| 1011 | CaseClause* default_clause = NULL; // Can occur anywhere in the list. |
| 1012 | |
| 1013 | Label next_test; // Recycled for each test. |
| 1014 | // Compile all the tests with branches to their bodies. |
| 1015 | for (int i = 0; i < clauses->length(); i++) { |
| 1016 | CaseClause* clause = clauses->at(i); |
| 1017 | clause->body_target()->Unuse(); |
| 1018 | |
| 1019 | // The default is not a test, but remember it as final fall through. |
| 1020 | if (clause->is_default()) { |
| 1021 | default_clause = clause; |
| 1022 | continue; |
| 1023 | } |
| 1024 | |
| 1025 | Comment cmnt(masm_, "[ Case comparison"); |
| 1026 | __ bind(&next_test); |
| 1027 | next_test.Unuse(); |
| 1028 | |
| 1029 | // Compile the label expression. |
| 1030 | VisitForAccumulatorValue(clause->label()); |
| 1031 | __ mov(a0, result_register()); // CompareStub requires args in a0, a1. |
| 1032 | |
| 1033 | // Perform the comparison as if via '==='. |
| 1034 | __ lw(a1, MemOperand(sp, 0)); // Switch value. |
| 1035 | bool inline_smi_code = ShouldInlineSmiCase(Token::EQ_STRICT); |
| 1036 | JumpPatchSite patch_site(masm_); |
| 1037 | if (inline_smi_code) { |
| 1038 | Label slow_case; |
| 1039 | __ or_(a2, a1, a0); |
| 1040 | patch_site.EmitJumpIfNotSmi(a2, &slow_case); |
| 1041 | |
| 1042 | __ Branch(&next_test, ne, a1, Operand(a0)); |
| 1043 | __ Drop(1); // Switch value is no longer needed. |
| 1044 | __ Branch(clause->body_target()); |
| 1045 | |
| 1046 | __ bind(&slow_case); |
| 1047 | } |
| 1048 | |
| 1049 | // Record position before stub call for type feedback. |
| 1050 | SetSourcePosition(clause->position()); |
| 1051 | Handle<Code> ic = CompareIC::GetUninitialized(Token::EQ_STRICT); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1052 | CallIC(ic, RelocInfo::CODE_TARGET, clause->CompareId()); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1053 | patch_site.EmitPatchInfo(); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1054 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1055 | __ Branch(&next_test, ne, v0, Operand(zero_reg)); |
| 1056 | __ Drop(1); // Switch value is no longer needed. |
| 1057 | __ Branch(clause->body_target()); |
| 1058 | } |
| 1059 | |
| 1060 | // Discard the test value and jump to the default if present, otherwise to |
| 1061 | // the end of the statement. |
| 1062 | __ bind(&next_test); |
| 1063 | __ Drop(1); // Switch value is no longer needed. |
| 1064 | if (default_clause == NULL) { |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 1065 | __ Branch(nested_statement.break_label()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1066 | } else { |
| 1067 | __ Branch(default_clause->body_target()); |
| 1068 | } |
| 1069 | |
| 1070 | // Compile all the case bodies. |
| 1071 | for (int i = 0; i < clauses->length(); i++) { |
| 1072 | Comment cmnt(masm_, "[ Case body"); |
| 1073 | CaseClause* clause = clauses->at(i); |
| 1074 | __ bind(clause->body_target()); |
| 1075 | PrepareForBailoutForId(clause->EntryId(), NO_REGISTERS); |
| 1076 | VisitStatements(clause->statements()); |
| 1077 | } |
| 1078 | |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 1079 | __ bind(nested_statement.break_label()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1080 | PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1081 | } |
| 1082 | |
| 1083 | |
| 1084 | void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1085 | Comment cmnt(masm_, "[ ForInStatement"); |
| 1086 | SetStatementPosition(stmt); |
| 1087 | |
| 1088 | Label loop, exit; |
| 1089 | ForIn loop_statement(this, stmt); |
| 1090 | increment_loop_depth(); |
| 1091 | |
| 1092 | // Get the object to enumerate over. Both SpiderMonkey and JSC |
| 1093 | // ignore null and undefined in contrast to the specification; see |
| 1094 | // ECMA-262 section 12.6.4. |
| 1095 | VisitForAccumulatorValue(stmt->enumerable()); |
| 1096 | __ mov(a0, result_register()); // Result as param to InvokeBuiltin below. |
| 1097 | __ LoadRoot(at, Heap::kUndefinedValueRootIndex); |
| 1098 | __ Branch(&exit, eq, a0, Operand(at)); |
| 1099 | Register null_value = t1; |
| 1100 | __ LoadRoot(null_value, Heap::kNullValueRootIndex); |
| 1101 | __ Branch(&exit, eq, a0, Operand(null_value)); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 1102 | PrepareForBailoutForId(stmt->PrepareId(), TOS_REG); |
| 1103 | __ mov(a0, v0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1104 | // Convert the object to a JS object. |
| 1105 | Label convert, done_convert; |
| 1106 | __ JumpIfSmi(a0, &convert); |
| 1107 | __ GetObjectType(a0, a1, a1); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1108 | __ Branch(&done_convert, ge, a1, Operand(FIRST_SPEC_OBJECT_TYPE)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1109 | __ bind(&convert); |
| 1110 | __ push(a0); |
| 1111 | __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); |
| 1112 | __ mov(a0, v0); |
| 1113 | __ bind(&done_convert); |
| 1114 | __ push(a0); |
| 1115 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1116 | // Check for proxies. |
| 1117 | Label call_runtime; |
| 1118 | STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
| 1119 | __ GetObjectType(a0, a1, a1); |
| 1120 | __ Branch(&call_runtime, le, a1, Operand(LAST_JS_PROXY_TYPE)); |
| 1121 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1122 | // Check cache validity in generated code. This is a fast case for |
| 1123 | // the JSObject::IsSimpleEnum cache validity checks. If we cannot |
| 1124 | // guarantee cache validity, call the runtime system to check cache |
| 1125 | // validity or get the property names in a fixed array. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 1126 | __ CheckEnumCache(null_value, &call_runtime); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1127 | |
| 1128 | // The enum cache is valid. Load the map of the object being |
| 1129 | // iterated over and use the cache for the iteration. |
| 1130 | Label use_cache; |
| 1131 | __ lw(v0, FieldMemOperand(a0, HeapObject::kMapOffset)); |
| 1132 | __ Branch(&use_cache); |
| 1133 | |
| 1134 | // Get the set of properties to enumerate. |
| 1135 | __ bind(&call_runtime); |
| 1136 | __ push(a0); // Duplicate the enumerable object on the stack. |
| 1137 | __ CallRuntime(Runtime::kGetPropertyNamesFast, 1); |
| 1138 | |
| 1139 | // If we got a map from the runtime call, we can do a fast |
| 1140 | // modification check. Otherwise, we got a fixed array, and we have |
| 1141 | // to do a slow check. |
| 1142 | Label fixed_array; |
| 1143 | __ mov(a2, v0); |
| 1144 | __ lw(a1, FieldMemOperand(a2, HeapObject::kMapOffset)); |
| 1145 | __ LoadRoot(at, Heap::kMetaMapRootIndex); |
| 1146 | __ Branch(&fixed_array, ne, a1, Operand(at)); |
| 1147 | |
| 1148 | // We got a map in register v0. Get the enumeration cache from it. |
| 1149 | __ bind(&use_cache); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1150 | __ LoadInstanceDescriptors(v0, a1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1151 | __ lw(a1, FieldMemOperand(a1, DescriptorArray::kEnumerationIndexOffset)); |
| 1152 | __ lw(a2, FieldMemOperand(a1, DescriptorArray::kEnumCacheBridgeCacheOffset)); |
| 1153 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 1154 | // Set up the four remaining stack slots. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1155 | __ push(v0); // Map. |
| 1156 | __ lw(a1, FieldMemOperand(a2, FixedArray::kLengthOffset)); |
| 1157 | __ li(a0, Operand(Smi::FromInt(0))); |
| 1158 | // Push enumeration cache, enumeration cache length (as smi) and zero. |
| 1159 | __ Push(a2, a1, a0); |
| 1160 | __ jmp(&loop); |
| 1161 | |
| 1162 | // We got a fixed array in register v0. Iterate through that. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1163 | Label non_proxy; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1164 | __ bind(&fixed_array); |
svenpanne@chromium.org | 4efbdb1 | 2012-03-12 08:18:42 +0000 | [diff] [blame] | 1165 | |
| 1166 | Handle<JSGlobalPropertyCell> cell = |
| 1167 | isolate()->factory()->NewJSGlobalPropertyCell( |
| 1168 | Handle<Object>( |
| 1169 | Smi::FromInt(TypeFeedbackCells::kForInFastCaseMarker))); |
| 1170 | RecordTypeFeedbackCell(stmt->PrepareId(), cell); |
| 1171 | __ LoadHeapObject(a1, cell); |
| 1172 | __ li(a2, Operand(Smi::FromInt(TypeFeedbackCells::kForInSlowCaseMarker))); |
| 1173 | __ sw(a2, FieldMemOperand(a1, JSGlobalPropertyCell::kValueOffset)); |
| 1174 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1175 | __ li(a1, Operand(Smi::FromInt(1))); // Smi indicates slow check |
| 1176 | __ lw(a2, MemOperand(sp, 0 * kPointerSize)); // Get enumerated object |
| 1177 | STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
| 1178 | __ GetObjectType(a2, a3, a3); |
| 1179 | __ Branch(&non_proxy, gt, a3, Operand(LAST_JS_PROXY_TYPE)); |
| 1180 | __ li(a1, Operand(Smi::FromInt(0))); // Zero indicates proxy |
| 1181 | __ bind(&non_proxy); |
| 1182 | __ Push(a1, v0); // Smi and array |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1183 | __ lw(a1, FieldMemOperand(v0, FixedArray::kLengthOffset)); |
| 1184 | __ li(a0, Operand(Smi::FromInt(0))); |
| 1185 | __ Push(a1, a0); // Fixed array length (as smi) and initial index. |
| 1186 | |
| 1187 | // Generate code for doing the condition check. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 1188 | PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1189 | __ bind(&loop); |
| 1190 | // Load the current count to a0, load the length to a1. |
| 1191 | __ lw(a0, MemOperand(sp, 0 * kPointerSize)); |
| 1192 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 1193 | __ Branch(loop_statement.break_label(), hs, a0, Operand(a1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1194 | |
| 1195 | // Get the current entry of the array into register a3. |
| 1196 | __ lw(a2, MemOperand(sp, 2 * kPointerSize)); |
| 1197 | __ Addu(a2, a2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 1198 | __ sll(t0, a0, kPointerSizeLog2 - kSmiTagSize); |
| 1199 | __ addu(t0, a2, t0); // Array base + scaled (smi) index. |
| 1200 | __ lw(a3, MemOperand(t0)); // Current entry. |
| 1201 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1202 | // Get the expected map from the stack or a smi in the |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1203 | // permanent slow case into register a2. |
| 1204 | __ lw(a2, MemOperand(sp, 3 * kPointerSize)); |
| 1205 | |
| 1206 | // Check if the expected map still matches that of the enumerable. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1207 | // If not, we may have to filter the key. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1208 | Label update_each; |
| 1209 | __ lw(a1, MemOperand(sp, 4 * kPointerSize)); |
| 1210 | __ lw(t0, FieldMemOperand(a1, HeapObject::kMapOffset)); |
| 1211 | __ Branch(&update_each, eq, t0, Operand(a2)); |
| 1212 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1213 | // For proxies, no filtering is done. |
| 1214 | // TODO(rossberg): What if only a prototype is a proxy? Not specified yet. |
| 1215 | ASSERT_EQ(Smi::FromInt(0), 0); |
| 1216 | __ Branch(&update_each, eq, a2, Operand(zero_reg)); |
| 1217 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1218 | // Convert the entry to a string or (smi) 0 if it isn't a property |
| 1219 | // any more. If the property has been removed while iterating, we |
| 1220 | // just skip it. |
| 1221 | __ push(a1); // Enumerable. |
| 1222 | __ push(a3); // Current entry. |
| 1223 | __ InvokeBuiltin(Builtins::FILTER_KEY, CALL_FUNCTION); |
| 1224 | __ mov(a3, result_register()); |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 1225 | __ Branch(loop_statement.continue_label(), eq, a3, Operand(zero_reg)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1226 | |
| 1227 | // Update the 'each' property or variable from the possibly filtered |
| 1228 | // entry in register a3. |
| 1229 | __ bind(&update_each); |
| 1230 | __ mov(result_register(), a3); |
| 1231 | // Perform the assignment as if via '='. |
| 1232 | { EffectContext context(this); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 1233 | EmitAssignment(stmt->each()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1234 | } |
| 1235 | |
| 1236 | // Generate code for the body of the loop. |
| 1237 | Visit(stmt->body()); |
| 1238 | |
| 1239 | // Generate code for the going to the next element by incrementing |
| 1240 | // the index (smi) stored on top of the stack. |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 1241 | __ bind(loop_statement.continue_label()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1242 | __ pop(a0); |
| 1243 | __ Addu(a0, a0, Operand(Smi::FromInt(1))); |
| 1244 | __ push(a0); |
| 1245 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 1246 | EmitStackCheck(stmt, &loop); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1247 | __ Branch(&loop); |
| 1248 | |
| 1249 | // Remove the pointers stored on the stack. |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 1250 | __ bind(loop_statement.break_label()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1251 | __ Drop(5); |
| 1252 | |
| 1253 | // Exit and decrement the loop depth. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 1254 | PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1255 | __ bind(&exit); |
| 1256 | decrement_loop_depth(); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1257 | } |
| 1258 | |
| 1259 | |
| 1260 | void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info, |
| 1261 | bool pretenure) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1262 | // Use the fast case closure allocation code that allocates in new |
| 1263 | // space for nested functions that don't need literals cloning. If |
| 1264 | // we're running with the --always-opt or the --prepare-always-opt |
| 1265 | // flag, we need to use the runtime function so that the new function |
| 1266 | // we are creating here gets a chance to have its code optimized and |
| 1267 | // doesn't just get a copy of the existing unoptimized code. |
| 1268 | if (!FLAG_always_opt && |
| 1269 | !FLAG_prepare_always_opt && |
| 1270 | !pretenure && |
| 1271 | scope()->is_function_scope() && |
| 1272 | info->num_literals() == 0) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 1273 | FastNewClosureStub stub(info->language_mode()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1274 | __ li(a0, Operand(info)); |
| 1275 | __ push(a0); |
| 1276 | __ CallStub(&stub); |
| 1277 | } else { |
| 1278 | __ li(a0, Operand(info)); |
| 1279 | __ LoadRoot(a1, pretenure ? Heap::kTrueValueRootIndex |
| 1280 | : Heap::kFalseValueRootIndex); |
| 1281 | __ Push(cp, a0, a1); |
| 1282 | __ CallRuntime(Runtime::kNewClosure, 3); |
| 1283 | } |
| 1284 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | void FullCodeGenerator::VisitVariableProxy(VariableProxy* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1289 | Comment cmnt(masm_, "[ VariableProxy"); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 1290 | EmitVariableLoad(expr); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1291 | } |
| 1292 | |
| 1293 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1294 | void FullCodeGenerator::EmitLoadGlobalCheckExtensions(Variable* var, |
| 1295 | TypeofState typeof_state, |
| 1296 | Label* slow) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1297 | Register current = cp; |
| 1298 | Register next = a1; |
| 1299 | Register temp = a2; |
| 1300 | |
| 1301 | Scope* s = scope(); |
| 1302 | while (s != NULL) { |
| 1303 | if (s->num_heap_slots() > 0) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1304 | if (s->calls_non_strict_eval()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1305 | // Check that extension is NULL. |
| 1306 | __ lw(temp, ContextOperand(current, Context::EXTENSION_INDEX)); |
| 1307 | __ Branch(slow, ne, temp, Operand(zero_reg)); |
| 1308 | } |
| 1309 | // Load next context in chain. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1310 | __ lw(next, ContextOperand(current, Context::PREVIOUS_INDEX)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1311 | // Walk the rest of the chain without clobbering cp. |
| 1312 | current = next; |
| 1313 | } |
| 1314 | // If no outer scope calls eval, we do not need to check more |
| 1315 | // context extensions. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1316 | if (!s->outer_scope_calls_non_strict_eval() || s->is_eval_scope()) break; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1317 | s = s->outer_scope(); |
| 1318 | } |
| 1319 | |
| 1320 | if (s->is_eval_scope()) { |
| 1321 | Label loop, fast; |
| 1322 | if (!current.is(next)) { |
| 1323 | __ Move(next, current); |
| 1324 | } |
| 1325 | __ bind(&loop); |
| 1326 | // Terminate at global context. |
| 1327 | __ lw(temp, FieldMemOperand(next, HeapObject::kMapOffset)); |
| 1328 | __ LoadRoot(t0, Heap::kGlobalContextMapRootIndex); |
| 1329 | __ Branch(&fast, eq, temp, Operand(t0)); |
| 1330 | // Check that extension is NULL. |
| 1331 | __ lw(temp, ContextOperand(next, Context::EXTENSION_INDEX)); |
| 1332 | __ Branch(slow, ne, temp, Operand(zero_reg)); |
| 1333 | // Load next context in chain. |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1334 | __ lw(next, ContextOperand(next, Context::PREVIOUS_INDEX)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1335 | __ Branch(&loop); |
| 1336 | __ bind(&fast); |
| 1337 | } |
| 1338 | |
| 1339 | __ lw(a0, GlobalObjectOperand()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1340 | __ li(a2, Operand(var->name())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1341 | RelocInfo::Mode mode = (typeof_state == INSIDE_TYPEOF) |
| 1342 | ? RelocInfo::CODE_TARGET |
| 1343 | : RelocInfo::CODE_TARGET_CONTEXT; |
| 1344 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1345 | CallIC(ic, mode); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1346 | } |
| 1347 | |
| 1348 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1349 | MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, |
| 1350 | Label* slow) { |
| 1351 | ASSERT(var->IsContextSlot()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1352 | Register context = cp; |
| 1353 | Register next = a3; |
| 1354 | Register temp = t0; |
| 1355 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1356 | for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1357 | if (s->num_heap_slots() > 0) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1358 | if (s->calls_non_strict_eval()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1359 | // Check that extension is NULL. |
| 1360 | __ lw(temp, ContextOperand(context, Context::EXTENSION_INDEX)); |
| 1361 | __ Branch(slow, ne, temp, Operand(zero_reg)); |
| 1362 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 1363 | __ lw(next, ContextOperand(context, Context::PREVIOUS_INDEX)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1364 | // Walk the rest of the chain without clobbering cp. |
| 1365 | context = next; |
| 1366 | } |
| 1367 | } |
| 1368 | // Check that last extension is NULL. |
| 1369 | __ lw(temp, ContextOperand(context, Context::EXTENSION_INDEX)); |
| 1370 | __ Branch(slow, ne, temp, Operand(zero_reg)); |
| 1371 | |
| 1372 | // This function is used only for loads, not stores, so it's safe to |
| 1373 | // return an cp-based operand (the write barrier cannot be allowed to |
| 1374 | // destroy the cp register). |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1375 | return ContextOperand(context, var->index()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1376 | } |
| 1377 | |
| 1378 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1379 | void FullCodeGenerator::EmitDynamicLookupFastCase(Variable* var, |
| 1380 | TypeofState typeof_state, |
| 1381 | Label* slow, |
| 1382 | Label* done) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1383 | // Generate fast-case code for variables that might be shadowed by |
| 1384 | // eval-introduced variables. Eval is used a lot without |
| 1385 | // introducing variables. In those cases, we do not want to |
| 1386 | // perform a runtime call for all variables in the scope |
| 1387 | // containing the eval. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1388 | if (var->mode() == DYNAMIC_GLOBAL) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1389 | EmitLoadGlobalCheckExtensions(var, typeof_state, slow); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1390 | __ Branch(done); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1391 | } else if (var->mode() == DYNAMIC_LOCAL) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1392 | Variable* local = var->local_if_not_shadowed(); |
| 1393 | __ lw(v0, ContextSlotOperandCheckExtensions(local, slow)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1394 | if (local->mode() == CONST || |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1395 | local->mode() == CONST_HARMONY || |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1396 | local->mode() == LET) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1397 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 1398 | __ subu(at, v0, at); // Sub as compare: at == 0 on eq. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1399 | if (local->mode() == CONST) { |
| 1400 | __ LoadRoot(a0, Heap::kUndefinedValueRootIndex); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1401 | __ Movz(v0, a0, at); // Conditional move: return Undefined if TheHole. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1402 | } else { // LET || CONST_HARMONY |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1403 | __ Branch(done, ne, at, Operand(zero_reg)); |
| 1404 | __ li(a0, Operand(var->name())); |
| 1405 | __ push(a0); |
| 1406 | __ CallRuntime(Runtime::kThrowReferenceError, 1); |
| 1407 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1408 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1409 | __ Branch(done); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1410 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1411 | } |
| 1412 | |
| 1413 | |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 1414 | void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) { |
| 1415 | // Record position before possible IC call. |
| 1416 | SetSourcePosition(proxy->position()); |
| 1417 | Variable* var = proxy->var(); |
| 1418 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1419 | // Three cases: global variables, lookup variables, and all other types of |
| 1420 | // variables. |
| 1421 | switch (var->location()) { |
| 1422 | case Variable::UNALLOCATED: { |
| 1423 | Comment cmnt(masm_, "Global variable"); |
| 1424 | // Use inline caching. Variable name is passed in a2 and the global |
| 1425 | // object (receiver) in a0. |
| 1426 | __ lw(a0, GlobalObjectOperand()); |
| 1427 | __ li(a2, Operand(var->name())); |
| 1428 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1429 | CallIC(ic, RelocInfo::CODE_TARGET_CONTEXT); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1430 | context()->Plug(v0); |
| 1431 | break; |
| 1432 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1433 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1434 | case Variable::PARAMETER: |
| 1435 | case Variable::LOCAL: |
| 1436 | case Variable::CONTEXT: { |
| 1437 | Comment cmnt(masm_, var->IsContextSlot() |
| 1438 | ? "Context variable" |
| 1439 | : "Stack variable"); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1440 | if (var->binding_needs_init()) { |
| 1441 | // var->scope() may be NULL when the proxy is located in eval code and |
| 1442 | // refers to a potential outside binding. Currently those bindings are |
| 1443 | // always looked up dynamically, i.e. in that case |
| 1444 | // var->location() == LOOKUP. |
| 1445 | // always holds. |
| 1446 | ASSERT(var->scope() != NULL); |
| 1447 | |
| 1448 | // Check if the binding really needs an initialization check. The check |
| 1449 | // can be skipped in the following situation: we have a LET or CONST |
| 1450 | // binding in harmony mode, both the Variable and the VariableProxy have |
| 1451 | // the same declaration scope (i.e. they are both in global code, in the |
| 1452 | // same function or in the same eval code) and the VariableProxy is in |
| 1453 | // the source physically located after the initializer of the variable. |
| 1454 | // |
| 1455 | // We cannot skip any initialization checks for CONST in non-harmony |
| 1456 | // mode because const variables may be declared but never initialized: |
| 1457 | // if (false) { const x; }; var y = x; |
| 1458 | // |
| 1459 | // The condition on the declaration scopes is a conservative check for |
| 1460 | // nested functions that access a binding and are called before the |
| 1461 | // binding is initialized: |
| 1462 | // function() { f(); let x = 1; function f() { x = 2; } } |
| 1463 | // |
| 1464 | bool skip_init_check; |
| 1465 | if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) { |
| 1466 | skip_init_check = false; |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1467 | } else { |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1468 | // Check that we always have valid source position. |
| 1469 | ASSERT(var->initializer_position() != RelocInfo::kNoPosition); |
| 1470 | ASSERT(proxy->position() != RelocInfo::kNoPosition); |
| 1471 | skip_init_check = var->mode() != CONST && |
| 1472 | var->initializer_position() < proxy->position(); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1473 | } |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1474 | |
| 1475 | if (!skip_init_check) { |
| 1476 | // Let and const need a read barrier. |
| 1477 | GetVar(v0, var); |
| 1478 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 1479 | __ subu(at, v0, at); // Sub as compare: at == 0 on eq. |
| 1480 | if (var->mode() == LET || var->mode() == CONST_HARMONY) { |
| 1481 | // Throw a reference error when using an uninitialized let/const |
| 1482 | // binding in harmony mode. |
| 1483 | Label done; |
| 1484 | __ Branch(&done, ne, at, Operand(zero_reg)); |
| 1485 | __ li(a0, Operand(var->name())); |
| 1486 | __ push(a0); |
| 1487 | __ CallRuntime(Runtime::kThrowReferenceError, 1); |
| 1488 | __ bind(&done); |
| 1489 | } else { |
| 1490 | // Uninitalized const bindings outside of harmony mode are unholed. |
| 1491 | ASSERT(var->mode() == CONST); |
| 1492 | __ LoadRoot(a0, Heap::kUndefinedValueRootIndex); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1493 | __ Movz(v0, a0, at); // Conditional move: Undefined if TheHole. |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1494 | } |
| 1495 | context()->Plug(v0); |
| 1496 | break; |
| 1497 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1498 | } |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1499 | context()->Plug(var); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1500 | break; |
| 1501 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1502 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 1503 | case Variable::LOOKUP: { |
| 1504 | Label done, slow; |
| 1505 | // Generate code for loading from variables potentially shadowed |
| 1506 | // by eval-introduced variables. |
| 1507 | EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); |
| 1508 | __ bind(&slow); |
| 1509 | Comment cmnt(masm_, "Lookup variable"); |
| 1510 | __ li(a1, Operand(var->name())); |
| 1511 | __ Push(cp, a1); // Context and name. |
| 1512 | __ CallRuntime(Runtime::kLoadContextSlot, 2); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 1513 | __ bind(&done); |
| 1514 | context()->Plug(v0); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 1515 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1516 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1517 | } |
| 1518 | |
| 1519 | |
| 1520 | void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1521 | Comment cmnt(masm_, "[ RegExpLiteral"); |
| 1522 | Label materialized; |
| 1523 | // Registers will be used as follows: |
| 1524 | // t1 = materialized value (RegExp literal) |
| 1525 | // t0 = JS function, literals array |
| 1526 | // a3 = literal index |
| 1527 | // a2 = RegExp pattern |
| 1528 | // a1 = RegExp flags |
| 1529 | // a0 = RegExp literal clone |
| 1530 | __ lw(a0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1531 | __ lw(t0, FieldMemOperand(a0, JSFunction::kLiteralsOffset)); |
| 1532 | int literal_offset = |
| 1533 | FixedArray::kHeaderSize + expr->literal_index() * kPointerSize; |
| 1534 | __ lw(t1, FieldMemOperand(t0, literal_offset)); |
| 1535 | __ LoadRoot(at, Heap::kUndefinedValueRootIndex); |
| 1536 | __ Branch(&materialized, ne, t1, Operand(at)); |
| 1537 | |
| 1538 | // Create regexp literal using runtime function. |
| 1539 | // Result will be in v0. |
| 1540 | __ li(a3, Operand(Smi::FromInt(expr->literal_index()))); |
| 1541 | __ li(a2, Operand(expr->pattern())); |
| 1542 | __ li(a1, Operand(expr->flags())); |
| 1543 | __ Push(t0, a3, a2, a1); |
| 1544 | __ CallRuntime(Runtime::kMaterializeRegExpLiteral, 4); |
| 1545 | __ mov(t1, v0); |
| 1546 | |
| 1547 | __ bind(&materialized); |
| 1548 | int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize; |
| 1549 | Label allocated, runtime_allocate; |
| 1550 | __ AllocateInNewSpace(size, v0, a2, a3, &runtime_allocate, TAG_OBJECT); |
| 1551 | __ jmp(&allocated); |
| 1552 | |
| 1553 | __ bind(&runtime_allocate); |
| 1554 | __ push(t1); |
| 1555 | __ li(a0, Operand(Smi::FromInt(size))); |
| 1556 | __ push(a0); |
| 1557 | __ CallRuntime(Runtime::kAllocateInNewSpace, 1); |
| 1558 | __ pop(t1); |
| 1559 | |
| 1560 | __ bind(&allocated); |
| 1561 | |
| 1562 | // After this, registers are used as follows: |
| 1563 | // v0: Newly allocated regexp. |
| 1564 | // t1: Materialized regexp. |
| 1565 | // a2: temp. |
| 1566 | __ CopyFields(v0, t1, a2.bit(), size / kPointerSize); |
| 1567 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1568 | } |
| 1569 | |
| 1570 | |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 1571 | void FullCodeGenerator::EmitAccessor(Expression* expression) { |
| 1572 | if (expression == NULL) { |
| 1573 | __ LoadRoot(a1, Heap::kNullValueRootIndex); |
| 1574 | __ push(a1); |
| 1575 | } else { |
| 1576 | VisitForStackValue(expression); |
| 1577 | } |
| 1578 | } |
| 1579 | |
| 1580 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1581 | void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1582 | Comment cmnt(masm_, "[ ObjectLiteral"); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1583 | Handle<FixedArray> constant_properties = expr->constant_properties(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1584 | __ lw(a3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1585 | __ lw(a3, FieldMemOperand(a3, JSFunction::kLiteralsOffset)); |
| 1586 | __ li(a2, Operand(Smi::FromInt(expr->literal_index()))); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1587 | __ li(a1, Operand(constant_properties)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1588 | int flags = expr->fast_elements() |
| 1589 | ? ObjectLiteral::kFastElements |
| 1590 | : ObjectLiteral::kNoFlags; |
| 1591 | flags |= expr->has_function() |
| 1592 | ? ObjectLiteral::kHasFunction |
| 1593 | : ObjectLiteral::kNoFlags; |
| 1594 | __ li(a0, Operand(Smi::FromInt(flags))); |
| 1595 | __ Push(a3, a2, a1, a0); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1596 | int properties_count = constant_properties->length() / 2; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1597 | if (expr->depth() > 1) { |
| 1598 | __ CallRuntime(Runtime::kCreateObjectLiteral, 4); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1599 | } else if (flags != ObjectLiteral::kFastElements || |
| 1600 | properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1601 | __ CallRuntime(Runtime::kCreateObjectLiteralShallow, 4); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1602 | } else { |
| 1603 | FastCloneShallowObjectStub stub(properties_count); |
| 1604 | __ CallStub(&stub); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1605 | } |
| 1606 | |
| 1607 | // If result_saved is true the result is on top of the stack. If |
| 1608 | // result_saved is false the result is in v0. |
| 1609 | bool result_saved = false; |
| 1610 | |
| 1611 | // Mark all computed expressions that are bound to a key that |
| 1612 | // is shadowed by a later occurrence of the same key. For the |
| 1613 | // marked expressions, no store code is emitted. |
| 1614 | expr->CalculateEmitStore(); |
| 1615 | |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 1616 | AccessorTable accessor_table(isolate()->zone()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1617 | for (int i = 0; i < expr->properties()->length(); i++) { |
| 1618 | ObjectLiteral::Property* property = expr->properties()->at(i); |
| 1619 | if (property->IsCompileTimeValue()) continue; |
| 1620 | |
| 1621 | Literal* key = property->key(); |
| 1622 | Expression* value = property->value(); |
| 1623 | if (!result_saved) { |
| 1624 | __ push(v0); // Save result on stack. |
| 1625 | result_saved = true; |
| 1626 | } |
| 1627 | switch (property->kind()) { |
| 1628 | case ObjectLiteral::Property::CONSTANT: |
| 1629 | UNREACHABLE(); |
| 1630 | case ObjectLiteral::Property::MATERIALIZED_LITERAL: |
| 1631 | ASSERT(!CompileTimeValue::IsCompileTimeValue(property->value())); |
| 1632 | // Fall through. |
| 1633 | case ObjectLiteral::Property::COMPUTED: |
| 1634 | if (key->handle()->IsSymbol()) { |
| 1635 | if (property->emit_store()) { |
| 1636 | VisitForAccumulatorValue(value); |
| 1637 | __ mov(a0, result_register()); |
| 1638 | __ li(a2, Operand(key->handle())); |
| 1639 | __ lw(a1, MemOperand(sp)); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 1640 | Handle<Code> ic = is_classic_mode() |
| 1641 | ? isolate()->builtins()->StoreIC_Initialize() |
| 1642 | : isolate()->builtins()->StoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1643 | CallIC(ic, RelocInfo::CODE_TARGET, key->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1644 | PrepareForBailoutForId(key->id(), NO_REGISTERS); |
| 1645 | } else { |
| 1646 | VisitForEffect(value); |
| 1647 | } |
| 1648 | break; |
| 1649 | } |
| 1650 | // Fall through. |
| 1651 | case ObjectLiteral::Property::PROTOTYPE: |
| 1652 | // Duplicate receiver on stack. |
| 1653 | __ lw(a0, MemOperand(sp)); |
| 1654 | __ push(a0); |
| 1655 | VisitForStackValue(key); |
| 1656 | VisitForStackValue(value); |
| 1657 | if (property->emit_store()) { |
| 1658 | __ li(a0, Operand(Smi::FromInt(NONE))); // PropertyAttributes. |
| 1659 | __ push(a0); |
| 1660 | __ CallRuntime(Runtime::kSetProperty, 4); |
| 1661 | } else { |
| 1662 | __ Drop(3); |
| 1663 | } |
| 1664 | break; |
| 1665 | case ObjectLiteral::Property::GETTER: |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 1666 | accessor_table.lookup(key)->second->getter = value; |
| 1667 | break; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1668 | case ObjectLiteral::Property::SETTER: |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 1669 | accessor_table.lookup(key)->second->setter = value; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1670 | break; |
| 1671 | } |
| 1672 | } |
| 1673 | |
rossberg@chromium.org | 2c067b1 | 2012-03-19 11:01:52 +0000 | [diff] [blame] | 1674 | // Emit code to define accessors, using only a single call to the runtime for |
| 1675 | // each pair of corresponding getters and setters. |
| 1676 | for (AccessorTable::Iterator it = accessor_table.begin(); |
| 1677 | it != accessor_table.end(); |
| 1678 | ++it) { |
| 1679 | __ lw(a0, MemOperand(sp)); // Duplicate receiver. |
| 1680 | __ push(a0); |
| 1681 | VisitForStackValue(it->first); |
| 1682 | EmitAccessor(it->second->getter); |
| 1683 | EmitAccessor(it->second->setter); |
| 1684 | __ li(a0, Operand(Smi::FromInt(NONE))); |
| 1685 | __ push(a0); |
| 1686 | __ CallRuntime(Runtime::kDefineOrRedefineAccessorProperty, 5); |
| 1687 | } |
| 1688 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1689 | if (expr->has_function()) { |
| 1690 | ASSERT(result_saved); |
| 1691 | __ lw(a0, MemOperand(sp)); |
| 1692 | __ push(a0); |
| 1693 | __ CallRuntime(Runtime::kToFastProperties, 1); |
| 1694 | } |
| 1695 | |
| 1696 | if (result_saved) { |
| 1697 | context()->PlugTOS(); |
| 1698 | } else { |
| 1699 | context()->Plug(v0); |
| 1700 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1701 | } |
| 1702 | |
| 1703 | |
| 1704 | void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1705 | Comment cmnt(masm_, "[ ArrayLiteral"); |
| 1706 | |
| 1707 | ZoneList<Expression*>* subexprs = expr->values(); |
| 1708 | int length = subexprs->length(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1709 | |
| 1710 | Handle<FixedArray> constant_elements = expr->constant_elements(); |
| 1711 | ASSERT_EQ(2, constant_elements->length()); |
| 1712 | ElementsKind constant_elements_kind = |
| 1713 | static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value()); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1714 | bool has_fast_elements = constant_elements_kind == FAST_ELEMENTS; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1715 | Handle<FixedArrayBase> constant_elements_values( |
| 1716 | FixedArrayBase::cast(constant_elements->get(1))); |
| 1717 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1718 | __ mov(a0, result_register()); |
| 1719 | __ lw(a3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1720 | __ lw(a3, FieldMemOperand(a3, JSFunction::kLiteralsOffset)); |
| 1721 | __ li(a2, Operand(Smi::FromInt(expr->literal_index()))); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1722 | __ li(a1, Operand(constant_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1723 | __ Push(a3, a2, a1); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1724 | if (has_fast_elements && constant_elements_values->map() == |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1725 | isolate()->heap()->fixed_cow_array_map()) { |
| 1726 | FastCloneShallowArrayStub stub( |
| 1727 | FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, length); |
| 1728 | __ CallStub(&stub); |
| 1729 | __ IncrementCounter(isolate()->counters()->cow_arrays_created_stub(), |
| 1730 | 1, a1, a2); |
| 1731 | } else if (expr->depth() > 1) { |
| 1732 | __ CallRuntime(Runtime::kCreateArrayLiteral, 3); |
| 1733 | } else if (length > FastCloneShallowArrayStub::kMaximumClonedLength) { |
| 1734 | __ CallRuntime(Runtime::kCreateArrayLiteralShallow, 3); |
| 1735 | } else { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1736 | ASSERT(constant_elements_kind == FAST_ELEMENTS || |
| 1737 | constant_elements_kind == FAST_SMI_ONLY_ELEMENTS || |
| 1738 | FLAG_smi_only_arrays); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1739 | FastCloneShallowArrayStub::Mode mode = has_fast_elements |
| 1740 | ? FastCloneShallowArrayStub::CLONE_ELEMENTS |
| 1741 | : FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1742 | FastCloneShallowArrayStub stub(mode, length); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1743 | __ CallStub(&stub); |
| 1744 | } |
| 1745 | |
| 1746 | bool result_saved = false; // Is the result saved to the stack? |
| 1747 | |
| 1748 | // Emit code to evaluate all the non-constant subexpressions and to store |
| 1749 | // them into the newly cloned array. |
| 1750 | for (int i = 0; i < length; i++) { |
| 1751 | Expression* subexpr = subexprs->at(i); |
| 1752 | // If the subexpression is a literal or a simple materialized literal it |
| 1753 | // is already set in the cloned array. |
| 1754 | if (subexpr->AsLiteral() != NULL || |
| 1755 | CompileTimeValue::IsCompileTimeValue(subexpr)) { |
| 1756 | continue; |
| 1757 | } |
| 1758 | |
| 1759 | if (!result_saved) { |
| 1760 | __ push(v0); |
| 1761 | result_saved = true; |
| 1762 | } |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1763 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1764 | VisitForAccumulatorValue(subexpr); |
| 1765 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1766 | if (constant_elements_kind == FAST_ELEMENTS) { |
| 1767 | int offset = FixedArray::kHeaderSize + (i * kPointerSize); |
| 1768 | __ lw(t2, MemOperand(sp)); // Copy of array literal. |
| 1769 | __ lw(a1, FieldMemOperand(t2, JSObject::kElementsOffset)); |
| 1770 | __ sw(result_register(), FieldMemOperand(a1, offset)); |
| 1771 | // Update the write barrier for the array store. |
| 1772 | __ RecordWriteField(a1, offset, result_register(), a2, |
| 1773 | kRAHasBeenSaved, kDontSaveFPRegs, |
| 1774 | EMIT_REMEMBERED_SET, INLINE_SMI_CHECK); |
| 1775 | } else { |
| 1776 | __ lw(a1, MemOperand(sp)); // Copy of array literal. |
| 1777 | __ lw(a2, FieldMemOperand(a1, JSObject::kMapOffset)); |
| 1778 | __ li(a3, Operand(Smi::FromInt(i))); |
| 1779 | __ li(t0, Operand(Smi::FromInt(expr->literal_index()))); |
| 1780 | __ mov(a0, result_register()); |
| 1781 | StoreArrayLiteralElementStub stub; |
| 1782 | __ CallStub(&stub); |
| 1783 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1784 | |
| 1785 | PrepareForBailoutForId(expr->GetIdForElement(i), NO_REGISTERS); |
| 1786 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1787 | if (result_saved) { |
| 1788 | context()->PlugTOS(); |
| 1789 | } else { |
| 1790 | context()->Plug(v0); |
| 1791 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1792 | } |
| 1793 | |
| 1794 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1795 | void FullCodeGenerator::VisitAssignment(Assignment* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1796 | Comment cmnt(masm_, "[ Assignment"); |
| 1797 | // Invalid left-hand sides are rewritten to have a 'throw ReferenceError' |
| 1798 | // on the left-hand side. |
| 1799 | if (!expr->target()->IsValidLeftHandSide()) { |
| 1800 | VisitForEffect(expr->target()); |
| 1801 | return; |
| 1802 | } |
| 1803 | |
| 1804 | // Left-hand side can only be a property, a global or a (parameter or local) |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 1805 | // slot. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1806 | enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
| 1807 | LhsKind assign_type = VARIABLE; |
| 1808 | Property* property = expr->target()->AsProperty(); |
| 1809 | if (property != NULL) { |
| 1810 | assign_type = (property->key()->IsPropertyName()) |
| 1811 | ? NAMED_PROPERTY |
| 1812 | : KEYED_PROPERTY; |
| 1813 | } |
| 1814 | |
| 1815 | // Evaluate LHS expression. |
| 1816 | switch (assign_type) { |
| 1817 | case VARIABLE: |
| 1818 | // Nothing to do here. |
| 1819 | break; |
| 1820 | case NAMED_PROPERTY: |
| 1821 | if (expr->is_compound()) { |
| 1822 | // We need the receiver both on the stack and in the accumulator. |
| 1823 | VisitForAccumulatorValue(property->obj()); |
| 1824 | __ push(result_register()); |
| 1825 | } else { |
| 1826 | VisitForStackValue(property->obj()); |
| 1827 | } |
| 1828 | break; |
| 1829 | case KEYED_PROPERTY: |
| 1830 | // We need the key and receiver on both the stack and in v0 and a1. |
| 1831 | if (expr->is_compound()) { |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 1832 | VisitForStackValue(property->obj()); |
| 1833 | VisitForAccumulatorValue(property->key()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1834 | __ lw(a1, MemOperand(sp, 0)); |
| 1835 | __ push(v0); |
| 1836 | } else { |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 1837 | VisitForStackValue(property->obj()); |
| 1838 | VisitForStackValue(property->key()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1839 | } |
| 1840 | break; |
| 1841 | } |
| 1842 | |
| 1843 | // For compound assignments we need another deoptimization point after the |
| 1844 | // variable/property load. |
| 1845 | if (expr->is_compound()) { |
| 1846 | { AccumulatorValueContext context(this); |
| 1847 | switch (assign_type) { |
| 1848 | case VARIABLE: |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 1849 | EmitVariableLoad(expr->target()->AsVariableProxy()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1850 | PrepareForBailout(expr->target(), TOS_REG); |
| 1851 | break; |
| 1852 | case NAMED_PROPERTY: |
| 1853 | EmitNamedPropertyLoad(property); |
| 1854 | PrepareForBailoutForId(expr->CompoundLoadId(), TOS_REG); |
| 1855 | break; |
| 1856 | case KEYED_PROPERTY: |
| 1857 | EmitKeyedPropertyLoad(property); |
| 1858 | PrepareForBailoutForId(expr->CompoundLoadId(), TOS_REG); |
| 1859 | break; |
| 1860 | } |
| 1861 | } |
| 1862 | |
| 1863 | Token::Value op = expr->binary_op(); |
| 1864 | __ push(v0); // Left operand goes on the stack. |
| 1865 | VisitForAccumulatorValue(expr->value()); |
| 1866 | |
| 1867 | OverwriteMode mode = expr->value()->ResultOverwriteAllowed() |
| 1868 | ? OVERWRITE_RIGHT |
| 1869 | : NO_OVERWRITE; |
| 1870 | SetSourcePosition(expr->position() + 1); |
| 1871 | AccumulatorValueContext context(this); |
| 1872 | if (ShouldInlineSmiCase(op)) { |
| 1873 | EmitInlineSmiBinaryOp(expr->binary_operation(), |
| 1874 | op, |
| 1875 | mode, |
| 1876 | expr->target(), |
| 1877 | expr->value()); |
| 1878 | } else { |
| 1879 | EmitBinaryOp(expr->binary_operation(), op, mode); |
| 1880 | } |
| 1881 | |
| 1882 | // Deoptimization point in case the binary operation may have side effects. |
| 1883 | PrepareForBailout(expr->binary_operation(), TOS_REG); |
| 1884 | } else { |
| 1885 | VisitForAccumulatorValue(expr->value()); |
| 1886 | } |
| 1887 | |
| 1888 | // Record source position before possible IC call. |
| 1889 | SetSourcePosition(expr->position()); |
| 1890 | |
| 1891 | // Store the value. |
| 1892 | switch (assign_type) { |
| 1893 | case VARIABLE: |
| 1894 | EmitVariableAssignment(expr->target()->AsVariableProxy()->var(), |
| 1895 | expr->op()); |
| 1896 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 1897 | context()->Plug(v0); |
| 1898 | break; |
| 1899 | case NAMED_PROPERTY: |
| 1900 | EmitNamedPropertyAssignment(expr); |
| 1901 | break; |
| 1902 | case KEYED_PROPERTY: |
| 1903 | EmitKeyedPropertyAssignment(expr); |
| 1904 | break; |
| 1905 | } |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1906 | } |
| 1907 | |
| 1908 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1909 | void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1910 | SetSourcePosition(prop->position()); |
| 1911 | Literal* key = prop->key()->AsLiteral(); |
| 1912 | __ mov(a0, result_register()); |
| 1913 | __ li(a2, Operand(key->handle())); |
| 1914 | // Call load IC. It has arguments receiver and property name a0 and a2. |
| 1915 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1916 | CallIC(ic, RelocInfo::CODE_TARGET, prop->id()); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1917 | } |
| 1918 | |
| 1919 | |
| 1920 | void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1921 | SetSourcePosition(prop->position()); |
| 1922 | __ mov(a0, result_register()); |
| 1923 | // Call keyed load IC. It has arguments key and receiver in a0 and a1. |
| 1924 | Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1925 | CallIC(ic, RelocInfo::CODE_TARGET, prop->id()); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1926 | } |
| 1927 | |
| 1928 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1929 | void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1930 | Token::Value op, |
| 1931 | OverwriteMode mode, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1932 | Expression* left_expr, |
| 1933 | Expression* right_expr) { |
| 1934 | Label done, smi_case, stub_call; |
| 1935 | |
| 1936 | Register scratch1 = a2; |
| 1937 | Register scratch2 = a3; |
| 1938 | |
| 1939 | // Get the arguments. |
| 1940 | Register left = a1; |
| 1941 | Register right = a0; |
| 1942 | __ pop(left); |
| 1943 | __ mov(a0, result_register()); |
| 1944 | |
| 1945 | // Perform combined smi check on both operands. |
| 1946 | __ Or(scratch1, left, Operand(right)); |
| 1947 | STATIC_ASSERT(kSmiTag == 0); |
| 1948 | JumpPatchSite patch_site(masm_); |
| 1949 | patch_site.EmitJumpIfSmi(scratch1, &smi_case); |
| 1950 | |
| 1951 | __ bind(&stub_call); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1952 | BinaryOpStub stub(op, mode); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 1953 | CallIC(stub.GetCode(), RelocInfo::CODE_TARGET, expr->id()); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 1954 | patch_site.EmitPatchInfo(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1955 | __ jmp(&done); |
| 1956 | |
| 1957 | __ bind(&smi_case); |
| 1958 | // Smi case. This code works the same way as the smi-smi case in the type |
| 1959 | // recording binary operation stub, see |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1960 | // BinaryOpStub::GenerateSmiSmiOperation for comments. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1961 | switch (op) { |
| 1962 | case Token::SAR: |
| 1963 | __ Branch(&stub_call); |
| 1964 | __ GetLeastBitsFromSmi(scratch1, right, 5); |
| 1965 | __ srav(right, left, scratch1); |
| 1966 | __ And(v0, right, Operand(~kSmiTagMask)); |
| 1967 | break; |
| 1968 | case Token::SHL: { |
| 1969 | __ Branch(&stub_call); |
| 1970 | __ SmiUntag(scratch1, left); |
| 1971 | __ GetLeastBitsFromSmi(scratch2, right, 5); |
| 1972 | __ sllv(scratch1, scratch1, scratch2); |
| 1973 | __ Addu(scratch2, scratch1, Operand(0x40000000)); |
| 1974 | __ Branch(&stub_call, lt, scratch2, Operand(zero_reg)); |
| 1975 | __ SmiTag(v0, scratch1); |
| 1976 | break; |
| 1977 | } |
| 1978 | case Token::SHR: { |
| 1979 | __ Branch(&stub_call); |
| 1980 | __ SmiUntag(scratch1, left); |
| 1981 | __ GetLeastBitsFromSmi(scratch2, right, 5); |
| 1982 | __ srlv(scratch1, scratch1, scratch2); |
| 1983 | __ And(scratch2, scratch1, 0xc0000000); |
| 1984 | __ Branch(&stub_call, ne, scratch2, Operand(zero_reg)); |
| 1985 | __ SmiTag(v0, scratch1); |
| 1986 | break; |
| 1987 | } |
| 1988 | case Token::ADD: |
| 1989 | __ AdduAndCheckForOverflow(v0, left, right, scratch1); |
| 1990 | __ BranchOnOverflow(&stub_call, scratch1); |
| 1991 | break; |
| 1992 | case Token::SUB: |
| 1993 | __ SubuAndCheckForOverflow(v0, left, right, scratch1); |
| 1994 | __ BranchOnOverflow(&stub_call, scratch1); |
| 1995 | break; |
| 1996 | case Token::MUL: { |
| 1997 | __ SmiUntag(scratch1, right); |
| 1998 | __ Mult(left, scratch1); |
| 1999 | __ mflo(scratch1); |
| 2000 | __ mfhi(scratch2); |
| 2001 | __ sra(scratch1, scratch1, 31); |
| 2002 | __ Branch(&stub_call, ne, scratch1, Operand(scratch2)); |
| 2003 | __ mflo(v0); |
| 2004 | __ Branch(&done, ne, v0, Operand(zero_reg)); |
| 2005 | __ Addu(scratch2, right, left); |
| 2006 | __ Branch(&stub_call, lt, scratch2, Operand(zero_reg)); |
| 2007 | ASSERT(Smi::FromInt(0) == 0); |
| 2008 | __ mov(v0, zero_reg); |
| 2009 | break; |
| 2010 | } |
| 2011 | case Token::BIT_OR: |
| 2012 | __ Or(v0, left, Operand(right)); |
| 2013 | break; |
| 2014 | case Token::BIT_AND: |
| 2015 | __ And(v0, left, Operand(right)); |
| 2016 | break; |
| 2017 | case Token::BIT_XOR: |
| 2018 | __ Xor(v0, left, Operand(right)); |
| 2019 | break; |
| 2020 | default: |
| 2021 | UNREACHABLE(); |
| 2022 | } |
| 2023 | |
| 2024 | __ bind(&done); |
| 2025 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2026 | } |
| 2027 | |
| 2028 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2029 | void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr, |
| 2030 | Token::Value op, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2031 | OverwriteMode mode) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2032 | __ mov(a0, result_register()); |
| 2033 | __ pop(a1); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2034 | BinaryOpStub stub(op, mode); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2035 | JumpPatchSite patch_site(masm_); // unbound, signals no inlined smi code. |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2036 | CallIC(stub.GetCode(), RelocInfo::CODE_TARGET, expr->id()); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2037 | patch_site.EmitPatchInfo(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2038 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2039 | } |
| 2040 | |
| 2041 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 2042 | void FullCodeGenerator::EmitAssignment(Expression* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2043 | // Invalid left-hand sides are rewritten to have a 'throw |
| 2044 | // ReferenceError' on the left-hand side. |
| 2045 | if (!expr->IsValidLeftHandSide()) { |
| 2046 | VisitForEffect(expr); |
| 2047 | return; |
| 2048 | } |
| 2049 | |
| 2050 | // Left-hand side can only be a property, a global or a (parameter or local) |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 2051 | // slot. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2052 | enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
| 2053 | LhsKind assign_type = VARIABLE; |
| 2054 | Property* prop = expr->AsProperty(); |
| 2055 | if (prop != NULL) { |
| 2056 | assign_type = (prop->key()->IsPropertyName()) |
| 2057 | ? NAMED_PROPERTY |
| 2058 | : KEYED_PROPERTY; |
| 2059 | } |
| 2060 | |
| 2061 | switch (assign_type) { |
| 2062 | case VARIABLE: { |
| 2063 | Variable* var = expr->AsVariableProxy()->var(); |
| 2064 | EffectContext context(this); |
| 2065 | EmitVariableAssignment(var, Token::ASSIGN); |
| 2066 | break; |
| 2067 | } |
| 2068 | case NAMED_PROPERTY: { |
| 2069 | __ push(result_register()); // Preserve value. |
| 2070 | VisitForAccumulatorValue(prop->obj()); |
| 2071 | __ mov(a1, result_register()); |
| 2072 | __ pop(a0); // Restore value. |
| 2073 | __ li(a2, Operand(prop->key()->AsLiteral()->handle())); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2074 | Handle<Code> ic = is_classic_mode() |
| 2075 | ? isolate()->builtins()->StoreIC_Initialize() |
| 2076 | : isolate()->builtins()->StoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2077 | CallIC(ic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2078 | break; |
| 2079 | } |
| 2080 | case KEYED_PROPERTY: { |
| 2081 | __ push(result_register()); // Preserve value. |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 2082 | VisitForStackValue(prop->obj()); |
| 2083 | VisitForAccumulatorValue(prop->key()); |
| 2084 | __ mov(a1, result_register()); |
| 2085 | __ pop(a2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2086 | __ pop(a0); // Restore value. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2087 | Handle<Code> ic = is_classic_mode() |
| 2088 | ? isolate()->builtins()->KeyedStoreIC_Initialize() |
| 2089 | : isolate()->builtins()->KeyedStoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2090 | CallIC(ic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2091 | break; |
| 2092 | } |
| 2093 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2094 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2095 | } |
| 2096 | |
| 2097 | |
| 2098 | void FullCodeGenerator::EmitVariableAssignment(Variable* var, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2099 | Token::Value op) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2100 | if (var->IsUnallocated()) { |
| 2101 | // Global var, const, or let. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2102 | __ mov(a0, result_register()); |
| 2103 | __ li(a2, Operand(var->name())); |
| 2104 | __ lw(a1, GlobalObjectOperand()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2105 | Handle<Code> ic = is_classic_mode() |
| 2106 | ? isolate()->builtins()->StoreIC_Initialize() |
| 2107 | : isolate()->builtins()->StoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2108 | CallIC(ic, RelocInfo::CODE_TARGET_CONTEXT); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2109 | |
| 2110 | } else if (op == Token::INIT_CONST) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2111 | // Const initializers need a write barrier. |
| 2112 | ASSERT(!var->IsParameter()); // No const parameters. |
| 2113 | if (var->IsStackLocal()) { |
| 2114 | Label skip; |
| 2115 | __ lw(a1, StackOperand(var)); |
| 2116 | __ LoadRoot(t0, Heap::kTheHoleValueRootIndex); |
| 2117 | __ Branch(&skip, ne, a1, Operand(t0)); |
| 2118 | __ sw(result_register(), StackOperand(var)); |
| 2119 | __ bind(&skip); |
| 2120 | } else { |
| 2121 | ASSERT(var->IsContextSlot() || var->IsLookupSlot()); |
| 2122 | // Like var declarations, const declarations are hoisted to function |
| 2123 | // scope. However, unlike var initializers, const initializers are |
| 2124 | // able to drill a hole to that function context, even from inside a |
| 2125 | // 'with' context. We thus bypass the normal static scope lookup for |
| 2126 | // var->IsContextSlot(). |
| 2127 | __ push(v0); |
| 2128 | __ li(a0, Operand(var->name())); |
| 2129 | __ Push(cp, a0); // Context and name. |
| 2130 | __ CallRuntime(Runtime::kInitializeConstContextSlot, 3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2131 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2132 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2133 | } else if (var->mode() == LET && op != Token::INIT_LET) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2134 | // Non-initializing assignment to let variable needs a write barrier. |
| 2135 | if (var->IsLookupSlot()) { |
| 2136 | __ push(v0); // Value. |
| 2137 | __ li(a1, Operand(var->name())); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2138 | __ li(a0, Operand(Smi::FromInt(language_mode()))); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2139 | __ Push(cp, a1, a0); // Context, name, strict mode. |
| 2140 | __ CallRuntime(Runtime::kStoreContextSlot, 4); |
| 2141 | } else { |
| 2142 | ASSERT(var->IsStackAllocated() || var->IsContextSlot()); |
| 2143 | Label assign; |
| 2144 | MemOperand location = VarOperand(var, a1); |
| 2145 | __ lw(a3, location); |
| 2146 | __ LoadRoot(t0, Heap::kTheHoleValueRootIndex); |
| 2147 | __ Branch(&assign, ne, a3, Operand(t0)); |
| 2148 | __ li(a3, Operand(var->name())); |
| 2149 | __ push(a3); |
| 2150 | __ CallRuntime(Runtime::kThrowReferenceError, 1); |
| 2151 | // Perform the assignment. |
| 2152 | __ bind(&assign); |
| 2153 | __ sw(result_register(), location); |
| 2154 | if (var->IsContextSlot()) { |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2155 | // RecordWrite may destroy all its register arguments. |
| 2156 | __ mov(a3, result_register()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2157 | int offset = Context::SlotOffset(var->index()); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2158 | __ RecordWriteContextSlot( |
| 2159 | a1, offset, a3, a2, kRAHasBeenSaved, kDontSaveFPRegs); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2160 | } |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 2161 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2162 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2163 | } else if (!var->is_const_mode() || op == Token::INIT_CONST_HARMONY) { |
| 2164 | // Assignment to var or initializing assignment to let/const |
| 2165 | // in harmony mode. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2166 | if (var->IsStackAllocated() || var->IsContextSlot()) { |
| 2167 | MemOperand location = VarOperand(var, a1); |
| 2168 | if (FLAG_debug_code && op == Token::INIT_LET) { |
| 2169 | // Check for an uninitialized let binding. |
| 2170 | __ lw(a2, location); |
| 2171 | __ LoadRoot(t0, Heap::kTheHoleValueRootIndex); |
| 2172 | __ Check(eq, "Let binding re-initialization.", a2, Operand(t0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2173 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2174 | // Perform the assignment. |
| 2175 | __ sw(v0, location); |
| 2176 | if (var->IsContextSlot()) { |
| 2177 | __ mov(a3, v0); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2178 | int offset = Context::SlotOffset(var->index()); |
| 2179 | __ RecordWriteContextSlot( |
| 2180 | a1, offset, a3, a2, kRAHasBeenSaved, kDontSaveFPRegs); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2181 | } |
| 2182 | } else { |
| 2183 | ASSERT(var->IsLookupSlot()); |
| 2184 | __ push(v0); // Value. |
| 2185 | __ li(a1, Operand(var->name())); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2186 | __ li(a0, Operand(Smi::FromInt(language_mode()))); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2187 | __ Push(cp, a1, a0); // Context, name, strict mode. |
| 2188 | __ CallRuntime(Runtime::kStoreContextSlot, 4); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2189 | } |
| 2190 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2191 | // Non-initializing assignments to consts are ignored. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2192 | } |
| 2193 | |
| 2194 | |
| 2195 | void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2196 | // Assignment to a property, using a named store IC. |
| 2197 | Property* prop = expr->target()->AsProperty(); |
| 2198 | ASSERT(prop != NULL); |
| 2199 | ASSERT(prop->key()->AsLiteral() != NULL); |
| 2200 | |
| 2201 | // If the assignment starts a block of assignments to the same object, |
| 2202 | // change to slow case to avoid the quadratic behavior of repeatedly |
| 2203 | // adding fast properties. |
| 2204 | if (expr->starts_initialization_block()) { |
| 2205 | __ push(result_register()); |
| 2206 | __ lw(t0, MemOperand(sp, kPointerSize)); // Receiver is now under value. |
| 2207 | __ push(t0); |
| 2208 | __ CallRuntime(Runtime::kToSlowProperties, 1); |
| 2209 | __ pop(result_register()); |
| 2210 | } |
| 2211 | |
| 2212 | // Record source code position before IC call. |
| 2213 | SetSourcePosition(expr->position()); |
| 2214 | __ mov(a0, result_register()); // Load the value. |
| 2215 | __ li(a2, Operand(prop->key()->AsLiteral()->handle())); |
| 2216 | // Load receiver to a1. Leave a copy in the stack if needed for turning the |
| 2217 | // receiver into fast case. |
| 2218 | if (expr->ends_initialization_block()) { |
| 2219 | __ lw(a1, MemOperand(sp)); |
| 2220 | } else { |
| 2221 | __ pop(a1); |
| 2222 | } |
| 2223 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2224 | Handle<Code> ic = is_classic_mode() |
| 2225 | ? isolate()->builtins()->StoreIC_Initialize() |
| 2226 | : isolate()->builtins()->StoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2227 | CallIC(ic, RelocInfo::CODE_TARGET, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2228 | |
| 2229 | // If the assignment ends an initialization block, revert to fast case. |
| 2230 | if (expr->ends_initialization_block()) { |
| 2231 | __ push(v0); // Result of assignment, saved even if not needed. |
| 2232 | // Receiver is under the result value. |
| 2233 | __ lw(t0, MemOperand(sp, kPointerSize)); |
| 2234 | __ push(t0); |
| 2235 | __ CallRuntime(Runtime::kToFastProperties, 1); |
| 2236 | __ pop(v0); |
| 2237 | __ Drop(1); |
| 2238 | } |
| 2239 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 2240 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2241 | } |
| 2242 | |
| 2243 | |
| 2244 | void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2245 | // Assignment to a property, using a keyed store IC. |
| 2246 | |
| 2247 | // If the assignment starts a block of assignments to the same object, |
| 2248 | // change to slow case to avoid the quadratic behavior of repeatedly |
| 2249 | // adding fast properties. |
| 2250 | if (expr->starts_initialization_block()) { |
| 2251 | __ push(result_register()); |
| 2252 | // Receiver is now under the key and value. |
| 2253 | __ lw(t0, MemOperand(sp, 2 * kPointerSize)); |
| 2254 | __ push(t0); |
| 2255 | __ CallRuntime(Runtime::kToSlowProperties, 1); |
| 2256 | __ pop(result_register()); |
| 2257 | } |
| 2258 | |
| 2259 | // Record source code position before IC call. |
| 2260 | SetSourcePosition(expr->position()); |
| 2261 | // Call keyed store IC. |
| 2262 | // The arguments are: |
| 2263 | // - a0 is the value, |
| 2264 | // - a1 is the key, |
| 2265 | // - a2 is the receiver. |
| 2266 | __ mov(a0, result_register()); |
| 2267 | __ pop(a1); // Key. |
| 2268 | // Load receiver to a2. Leave a copy in the stack if needed for turning the |
| 2269 | // receiver into fast case. |
| 2270 | if (expr->ends_initialization_block()) { |
| 2271 | __ lw(a2, MemOperand(sp)); |
| 2272 | } else { |
| 2273 | __ pop(a2); |
| 2274 | } |
| 2275 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2276 | Handle<Code> ic = is_classic_mode() |
| 2277 | ? isolate()->builtins()->KeyedStoreIC_Initialize() |
| 2278 | : isolate()->builtins()->KeyedStoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2279 | CallIC(ic, RelocInfo::CODE_TARGET, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2280 | |
| 2281 | // If the assignment ends an initialization block, revert to fast case. |
| 2282 | if (expr->ends_initialization_block()) { |
| 2283 | __ push(v0); // Result of assignment, saved even if not needed. |
| 2284 | // Receiver is under the result value. |
| 2285 | __ lw(t0, MemOperand(sp, kPointerSize)); |
| 2286 | __ push(t0); |
| 2287 | __ CallRuntime(Runtime::kToFastProperties, 1); |
| 2288 | __ pop(v0); |
| 2289 | __ Drop(1); |
| 2290 | } |
| 2291 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 2292 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2293 | } |
| 2294 | |
| 2295 | |
| 2296 | void FullCodeGenerator::VisitProperty(Property* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2297 | Comment cmnt(masm_, "[ Property"); |
| 2298 | Expression* key = expr->key(); |
| 2299 | |
| 2300 | if (key->IsPropertyName()) { |
| 2301 | VisitForAccumulatorValue(expr->obj()); |
| 2302 | EmitNamedPropertyLoad(expr); |
| 2303 | context()->Plug(v0); |
| 2304 | } else { |
| 2305 | VisitForStackValue(expr->obj()); |
| 2306 | VisitForAccumulatorValue(expr->key()); |
| 2307 | __ pop(a1); |
| 2308 | EmitKeyedPropertyLoad(expr); |
| 2309 | context()->Plug(v0); |
| 2310 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2311 | } |
| 2312 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2313 | |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2314 | void FullCodeGenerator::CallIC(Handle<Code> code, |
| 2315 | RelocInfo::Mode rmode, |
| 2316 | unsigned ast_id) { |
| 2317 | ic_total_count_++; |
| 2318 | __ Call(code, rmode, ast_id); |
| 2319 | } |
| 2320 | |
| 2321 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2322 | void FullCodeGenerator::EmitCallWithIC(Call* expr, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2323 | Handle<Object> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2324 | RelocInfo::Mode mode) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2325 | // Code common for calls using the IC. |
| 2326 | ZoneList<Expression*>* args = expr->arguments(); |
| 2327 | int arg_count = args->length(); |
| 2328 | { PreservePositionScope scope(masm()->positions_recorder()); |
| 2329 | for (int i = 0; i < arg_count; i++) { |
| 2330 | VisitForStackValue(args->at(i)); |
| 2331 | } |
| 2332 | __ li(a2, Operand(name)); |
| 2333 | } |
| 2334 | // Record source position for debugger. |
| 2335 | SetSourcePosition(expr->position()); |
| 2336 | // Call the IC initialization code. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2337 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 2338 | isolate()->stub_cache()->ComputeCallInitialize(arg_count, mode); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2339 | CallIC(ic, mode, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2340 | RecordJSReturnSite(expr); |
| 2341 | // Restore context register. |
| 2342 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2343 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2344 | } |
| 2345 | |
| 2346 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2347 | void FullCodeGenerator::EmitKeyedCallWithIC(Call* expr, |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2348 | Expression* key) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2349 | // Load the key. |
| 2350 | VisitForAccumulatorValue(key); |
| 2351 | |
| 2352 | // Swap the name of the function and the receiver on the stack to follow |
| 2353 | // the calling convention for call ICs. |
| 2354 | __ pop(a1); |
| 2355 | __ push(v0); |
| 2356 | __ push(a1); |
| 2357 | |
| 2358 | // Code common for calls using the IC. |
| 2359 | ZoneList<Expression*>* args = expr->arguments(); |
| 2360 | int arg_count = args->length(); |
| 2361 | { PreservePositionScope scope(masm()->positions_recorder()); |
| 2362 | for (int i = 0; i < arg_count; i++) { |
| 2363 | VisitForStackValue(args->at(i)); |
| 2364 | } |
| 2365 | } |
| 2366 | // Record source position for debugger. |
| 2367 | SetSourcePosition(expr->position()); |
| 2368 | // Call the IC initialization code. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2369 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 2370 | isolate()->stub_cache()->ComputeKeyedCallInitialize(arg_count); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2371 | __ lw(a2, MemOperand(sp, (arg_count + 1) * kPointerSize)); // Key. |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 2372 | CallIC(ic, RelocInfo::CODE_TARGET, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2373 | RecordJSReturnSite(expr); |
| 2374 | // Restore context register. |
| 2375 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2376 | context()->DropAndPlug(1, v0); // Drop the key still on the stack. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2377 | } |
| 2378 | |
| 2379 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 2380 | void FullCodeGenerator::EmitCallWithStub(Call* expr, CallFunctionFlags flags) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2381 | // Code common for calls using the call stub. |
| 2382 | ZoneList<Expression*>* args = expr->arguments(); |
| 2383 | int arg_count = args->length(); |
| 2384 | { PreservePositionScope scope(masm()->positions_recorder()); |
| 2385 | for (int i = 0; i < arg_count; i++) { |
| 2386 | VisitForStackValue(args->at(i)); |
| 2387 | } |
| 2388 | } |
| 2389 | // Record source position for debugger. |
| 2390 | SetSourcePosition(expr->position()); |
mstarzinger@chromium.org | 88d326b | 2012-04-23 12:57:22 +0000 | [diff] [blame^] | 2391 | |
| 2392 | // Record call targets in unoptimized code, but not in the snapshot. |
| 2393 | if (!Serializer::enabled()) { |
| 2394 | flags = static_cast<CallFunctionFlags>(flags | RECORD_CALL_TARGET); |
| 2395 | Handle<Object> uninitialized = |
| 2396 | TypeFeedbackCells::UninitializedSentinel(isolate()); |
| 2397 | Handle<JSGlobalPropertyCell> cell = |
| 2398 | isolate()->factory()->NewJSGlobalPropertyCell(uninitialized); |
| 2399 | RecordTypeFeedbackCell(expr->id(), cell); |
| 2400 | __ li(a2, Operand(cell)); |
| 2401 | } |
| 2402 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 2403 | CallFunctionStub stub(arg_count, flags); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2404 | __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2405 | __ CallStub(&stub); |
| 2406 | RecordJSReturnSite(expr); |
| 2407 | // Restore context register. |
| 2408 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2409 | context()->DropAndPlug(1, v0); |
| 2410 | } |
| 2411 | |
| 2412 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2413 | void FullCodeGenerator::EmitResolvePossiblyDirectEval(int arg_count) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2414 | // Push copy of the first argument or undefined if it doesn't exist. |
| 2415 | if (arg_count > 0) { |
| 2416 | __ lw(a1, MemOperand(sp, arg_count * kPointerSize)); |
| 2417 | } else { |
| 2418 | __ LoadRoot(a1, Heap::kUndefinedValueRootIndex); |
| 2419 | } |
| 2420 | __ push(a1); |
| 2421 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2422 | // Push the receiver of the enclosing function. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2423 | int receiver_offset = 2 + info_->scope()->num_parameters(); |
| 2424 | __ lw(a1, MemOperand(fp, receiver_offset * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2425 | __ push(a1); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2426 | // Push the language mode. |
| 2427 | __ li(a1, Operand(Smi::FromInt(language_mode()))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2428 | __ push(a1); |
| 2429 | |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 2430 | // Push the start position of the scope the calls resides in. |
| 2431 | __ li(a1, Operand(Smi::FromInt(scope()->start_position()))); |
| 2432 | __ push(a1); |
| 2433 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2434 | // Do the runtime call. |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 2435 | __ CallRuntime(Runtime::kResolvePossiblyDirectEval, 5); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2436 | } |
| 2437 | |
| 2438 | |
| 2439 | void FullCodeGenerator::VisitCall(Call* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2440 | #ifdef DEBUG |
| 2441 | // We want to verify that RecordJSReturnSite gets called on all paths |
| 2442 | // through this function. Avoid early returns. |
| 2443 | expr->return_is_recorded_ = false; |
| 2444 | #endif |
| 2445 | |
| 2446 | Comment cmnt(masm_, "[ Call"); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2447 | Expression* callee = expr->expression(); |
| 2448 | VariableProxy* proxy = callee->AsVariableProxy(); |
| 2449 | Property* property = callee->AsProperty(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2450 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2451 | if (proxy != NULL && proxy->var()->is_possibly_eval()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2452 | // In a call to eval, we first call %ResolvePossiblyDirectEval to |
| 2453 | // resolve the function we need to call and the receiver of the |
| 2454 | // call. Then we call the resolved function using the given |
| 2455 | // arguments. |
| 2456 | ZoneList<Expression*>* args = expr->arguments(); |
| 2457 | int arg_count = args->length(); |
| 2458 | |
| 2459 | { PreservePositionScope pos_scope(masm()->positions_recorder()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2460 | VisitForStackValue(callee); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2461 | __ LoadRoot(a2, Heap::kUndefinedValueRootIndex); |
| 2462 | __ push(a2); // Reserved receiver slot. |
| 2463 | |
| 2464 | // Push the arguments. |
| 2465 | for (int i = 0; i < arg_count; i++) { |
| 2466 | VisitForStackValue(args->at(i)); |
| 2467 | } |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2468 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2469 | // Push a copy of the function (found below the arguments) and |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2470 | // resolve eval. |
| 2471 | __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize)); |
| 2472 | __ push(a1); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2473 | EmitResolvePossiblyDirectEval(arg_count); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2474 | |
| 2475 | // The runtime call returns a pair of values in v0 (function) and |
| 2476 | // v1 (receiver). Touch up the stack with the right values. |
| 2477 | __ sw(v0, MemOperand(sp, (arg_count + 1) * kPointerSize)); |
| 2478 | __ sw(v1, MemOperand(sp, arg_count * kPointerSize)); |
| 2479 | } |
| 2480 | // Record source position for debugger. |
| 2481 | SetSourcePosition(expr->position()); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 2482 | CallFunctionStub stub(arg_count, RECEIVER_MIGHT_BE_IMPLICIT); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2483 | __ lw(a1, MemOperand(sp, (arg_count + 1) * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2484 | __ CallStub(&stub); |
| 2485 | RecordJSReturnSite(expr); |
| 2486 | // Restore context register. |
| 2487 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2488 | context()->DropAndPlug(1, v0); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2489 | } else if (proxy != NULL && proxy->var()->IsUnallocated()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2490 | // Push global object as receiver for the call IC. |
| 2491 | __ lw(a0, GlobalObjectOperand()); |
| 2492 | __ push(a0); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2493 | EmitCallWithIC(expr, proxy->name(), RelocInfo::CODE_TARGET_CONTEXT); |
| 2494 | } else if (proxy != NULL && proxy->var()->IsLookupSlot()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2495 | // Call to a lookup slot (dynamically introduced variable). |
| 2496 | Label slow, done; |
| 2497 | |
| 2498 | { PreservePositionScope scope(masm()->positions_recorder()); |
| 2499 | // Generate code for loading from variables potentially shadowed |
| 2500 | // by eval-introduced variables. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2501 | EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2502 | } |
| 2503 | |
| 2504 | __ bind(&slow); |
| 2505 | // Call the runtime to find the function to call (returned in v0) |
| 2506 | // and the object holding it (returned in v1). |
| 2507 | __ push(context_register()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2508 | __ li(a2, Operand(proxy->name())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2509 | __ push(a2); |
| 2510 | __ CallRuntime(Runtime::kLoadContextSlot, 2); |
| 2511 | __ Push(v0, v1); // Function, receiver. |
| 2512 | |
| 2513 | // If fast case code has been generated, emit code to push the |
| 2514 | // function and receiver and have the slow path jump around this |
| 2515 | // code. |
| 2516 | if (done.is_linked()) { |
| 2517 | Label call; |
| 2518 | __ Branch(&call); |
| 2519 | __ bind(&done); |
| 2520 | // Push function. |
| 2521 | __ push(v0); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2522 | // The receiver is implicitly the global receiver. Indicate this |
| 2523 | // by passing the hole to the call function stub. |
| 2524 | __ LoadRoot(a1, Heap::kTheHoleValueRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2525 | __ push(a1); |
| 2526 | __ bind(&call); |
| 2527 | } |
| 2528 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2529 | // The receiver is either the global receiver or an object found |
| 2530 | // by LoadContextSlot. That object could be the hole if the |
| 2531 | // receiver is implicitly the global object. |
| 2532 | EmitCallWithStub(expr, RECEIVER_MIGHT_BE_IMPLICIT); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2533 | } else if (property != NULL) { |
| 2534 | { PreservePositionScope scope(masm()->positions_recorder()); |
| 2535 | VisitForStackValue(property->obj()); |
| 2536 | } |
| 2537 | if (property->key()->IsPropertyName()) { |
| 2538 | EmitCallWithIC(expr, |
| 2539 | property->key()->AsLiteral()->handle(), |
| 2540 | RelocInfo::CODE_TARGET); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2541 | } else { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2542 | EmitKeyedCallWithIC(expr, property->key()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2543 | } |
| 2544 | } else { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2545 | // Call to an arbitrary expression not handled specially above. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2546 | { PreservePositionScope scope(masm()->positions_recorder()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 2547 | VisitForStackValue(callee); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2548 | } |
| 2549 | // Load global receiver object. |
| 2550 | __ lw(a1, GlobalObjectOperand()); |
| 2551 | __ lw(a1, FieldMemOperand(a1, GlobalObject::kGlobalReceiverOffset)); |
| 2552 | __ push(a1); |
| 2553 | // Emit function call. |
| 2554 | EmitCallWithStub(expr, NO_CALL_FUNCTION_FLAGS); |
| 2555 | } |
| 2556 | |
| 2557 | #ifdef DEBUG |
| 2558 | // RecordJSReturnSite should have been called. |
| 2559 | ASSERT(expr->return_is_recorded_); |
| 2560 | #endif |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2561 | } |
| 2562 | |
| 2563 | |
| 2564 | void FullCodeGenerator::VisitCallNew(CallNew* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2565 | Comment cmnt(masm_, "[ CallNew"); |
| 2566 | // According to ECMA-262, section 11.2.2, page 44, the function |
| 2567 | // expression in new calls must be evaluated before the |
| 2568 | // arguments. |
| 2569 | |
| 2570 | // Push constructor on the stack. If it's not a function it's used as |
| 2571 | // receiver for CALL_NON_FUNCTION, otherwise the value on the stack is |
| 2572 | // ignored. |
| 2573 | VisitForStackValue(expr->expression()); |
| 2574 | |
| 2575 | // Push the arguments ("left-to-right") on the stack. |
| 2576 | ZoneList<Expression*>* args = expr->arguments(); |
| 2577 | int arg_count = args->length(); |
| 2578 | for (int i = 0; i < arg_count; i++) { |
| 2579 | VisitForStackValue(args->at(i)); |
| 2580 | } |
| 2581 | |
| 2582 | // Call the construct call builtin that handles allocation and |
| 2583 | // constructor invocation. |
| 2584 | SetSourcePosition(expr->position()); |
| 2585 | |
| 2586 | // Load function and argument count into a1 and a0. |
| 2587 | __ li(a0, Operand(arg_count)); |
| 2588 | __ lw(a1, MemOperand(sp, arg_count * kPointerSize)); |
| 2589 | |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 2590 | // Record call targets in unoptimized code, but not in the snapshot. |
| 2591 | CallFunctionFlags flags; |
| 2592 | if (!Serializer::enabled()) { |
| 2593 | flags = RECORD_CALL_TARGET; |
| 2594 | Handle<Object> uninitialized = |
| 2595 | TypeFeedbackCells::UninitializedSentinel(isolate()); |
| 2596 | Handle<JSGlobalPropertyCell> cell = |
| 2597 | isolate()->factory()->NewJSGlobalPropertyCell(uninitialized); |
| 2598 | RecordTypeFeedbackCell(expr->id(), cell); |
| 2599 | __ li(a2, Operand(cell)); |
| 2600 | } else { |
| 2601 | flags = NO_CALL_FUNCTION_FLAGS; |
| 2602 | } |
| 2603 | |
| 2604 | CallConstructStub stub(flags); |
| 2605 | __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL); |
ulan@chromium.org | 967e270 | 2012-02-28 09:49:15 +0000 | [diff] [blame] | 2606 | PrepareForBailoutForId(expr->ReturnId(), TOS_REG); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2607 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2608 | } |
| 2609 | |
| 2610 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2611 | void FullCodeGenerator::EmitIsSmi(CallRuntime* expr) { |
| 2612 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2613 | ASSERT(args->length() == 1); |
| 2614 | |
| 2615 | VisitForAccumulatorValue(args->at(0)); |
| 2616 | |
| 2617 | Label materialize_true, materialize_false; |
| 2618 | Label* if_true = NULL; |
| 2619 | Label* if_false = NULL; |
| 2620 | Label* fall_through = NULL; |
| 2621 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2622 | &if_true, &if_false, &fall_through); |
| 2623 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2624 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2625 | __ And(t0, v0, Operand(kSmiTagMask)); |
| 2626 | Split(eq, t0, Operand(zero_reg), if_true, if_false, fall_through); |
| 2627 | |
| 2628 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2629 | } |
| 2630 | |
| 2631 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2632 | void FullCodeGenerator::EmitIsNonNegativeSmi(CallRuntime* expr) { |
| 2633 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2634 | ASSERT(args->length() == 1); |
| 2635 | |
| 2636 | VisitForAccumulatorValue(args->at(0)); |
| 2637 | |
| 2638 | Label materialize_true, materialize_false; |
| 2639 | Label* if_true = NULL; |
| 2640 | Label* if_false = NULL; |
| 2641 | Label* fall_through = NULL; |
| 2642 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2643 | &if_true, &if_false, &fall_through); |
| 2644 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2645 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2646 | __ And(at, v0, Operand(kSmiTagMask | 0x80000000)); |
| 2647 | Split(eq, at, Operand(zero_reg), if_true, if_false, fall_through); |
| 2648 | |
| 2649 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2650 | } |
| 2651 | |
| 2652 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2653 | void FullCodeGenerator::EmitIsObject(CallRuntime* expr) { |
| 2654 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2655 | ASSERT(args->length() == 1); |
| 2656 | |
| 2657 | VisitForAccumulatorValue(args->at(0)); |
| 2658 | |
| 2659 | Label materialize_true, materialize_false; |
| 2660 | Label* if_true = NULL; |
| 2661 | Label* if_false = NULL; |
| 2662 | Label* fall_through = NULL; |
| 2663 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2664 | &if_true, &if_false, &fall_through); |
| 2665 | |
| 2666 | __ JumpIfSmi(v0, if_false); |
| 2667 | __ LoadRoot(at, Heap::kNullValueRootIndex); |
| 2668 | __ Branch(if_true, eq, v0, Operand(at)); |
| 2669 | __ lw(a2, FieldMemOperand(v0, HeapObject::kMapOffset)); |
| 2670 | // Undetectable objects behave like undefined when tested with typeof. |
| 2671 | __ lbu(a1, FieldMemOperand(a2, Map::kBitFieldOffset)); |
| 2672 | __ And(at, a1, Operand(1 << Map::kIsUndetectable)); |
| 2673 | __ Branch(if_false, ne, at, Operand(zero_reg)); |
| 2674 | __ lbu(a1, FieldMemOperand(a2, Map::kInstanceTypeOffset)); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2675 | __ Branch(if_false, lt, a1, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2676 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2677 | Split(le, a1, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE), |
| 2678 | if_true, if_false, fall_through); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2679 | |
| 2680 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2681 | } |
| 2682 | |
| 2683 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2684 | void FullCodeGenerator::EmitIsSpecObject(CallRuntime* expr) { |
| 2685 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2686 | ASSERT(args->length() == 1); |
| 2687 | |
| 2688 | VisitForAccumulatorValue(args->at(0)); |
| 2689 | |
| 2690 | Label materialize_true, materialize_false; |
| 2691 | Label* if_true = NULL; |
| 2692 | Label* if_false = NULL; |
| 2693 | Label* fall_through = NULL; |
| 2694 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2695 | &if_true, &if_false, &fall_through); |
| 2696 | |
| 2697 | __ JumpIfSmi(v0, if_false); |
| 2698 | __ GetObjectType(v0, a1, a1); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2699 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2700 | Split(ge, a1, Operand(FIRST_SPEC_OBJECT_TYPE), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2701 | if_true, if_false, fall_through); |
| 2702 | |
| 2703 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2704 | } |
| 2705 | |
| 2706 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2707 | void FullCodeGenerator::EmitIsUndetectableObject(CallRuntime* expr) { |
| 2708 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2709 | ASSERT(args->length() == 1); |
| 2710 | |
| 2711 | VisitForAccumulatorValue(args->at(0)); |
| 2712 | |
| 2713 | Label materialize_true, materialize_false; |
| 2714 | Label* if_true = NULL; |
| 2715 | Label* if_false = NULL; |
| 2716 | Label* fall_through = NULL; |
| 2717 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2718 | &if_true, &if_false, &fall_through); |
| 2719 | |
| 2720 | __ JumpIfSmi(v0, if_false); |
| 2721 | __ lw(a1, FieldMemOperand(v0, HeapObject::kMapOffset)); |
| 2722 | __ lbu(a1, FieldMemOperand(a1, Map::kBitFieldOffset)); |
| 2723 | __ And(at, a1, Operand(1 << Map::kIsUndetectable)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2724 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2725 | Split(ne, at, Operand(zero_reg), if_true, if_false, fall_through); |
| 2726 | |
| 2727 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2728 | } |
| 2729 | |
| 2730 | |
| 2731 | void FullCodeGenerator::EmitIsStringWrapperSafeForDefaultValueOf( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2732 | CallRuntime* expr) { |
| 2733 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2734 | ASSERT(args->length() == 1); |
| 2735 | |
| 2736 | VisitForAccumulatorValue(args->at(0)); |
| 2737 | |
| 2738 | Label materialize_true, materialize_false; |
| 2739 | Label* if_true = NULL; |
| 2740 | Label* if_false = NULL; |
| 2741 | Label* fall_through = NULL; |
| 2742 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2743 | &if_true, &if_false, &fall_through); |
| 2744 | |
| 2745 | if (FLAG_debug_code) __ AbortIfSmi(v0); |
| 2746 | |
| 2747 | __ lw(a1, FieldMemOperand(v0, HeapObject::kMapOffset)); |
| 2748 | __ lbu(t0, FieldMemOperand(a1, Map::kBitField2Offset)); |
| 2749 | __ And(t0, t0, 1 << Map::kStringWrapperSafeForDefaultValueOf); |
| 2750 | __ Branch(if_true, ne, t0, Operand(zero_reg)); |
| 2751 | |
| 2752 | // Check for fast case object. Generate false result for slow case object. |
| 2753 | __ lw(a2, FieldMemOperand(v0, JSObject::kPropertiesOffset)); |
| 2754 | __ lw(a2, FieldMemOperand(a2, HeapObject::kMapOffset)); |
| 2755 | __ LoadRoot(t0, Heap::kHashTableMapRootIndex); |
| 2756 | __ Branch(if_false, eq, a2, Operand(t0)); |
| 2757 | |
| 2758 | // Look for valueOf symbol in the descriptor array, and indicate false if |
| 2759 | // found. The type is not checked, so if it is a transition it is a false |
| 2760 | // negative. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2761 | __ LoadInstanceDescriptors(a1, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2762 | __ lw(a3, FieldMemOperand(t0, FixedArray::kLengthOffset)); |
| 2763 | // t0: descriptor array |
| 2764 | // a3: length of descriptor array |
| 2765 | // Calculate the end of the descriptor array. |
| 2766 | STATIC_ASSERT(kSmiTag == 0); |
| 2767 | STATIC_ASSERT(kSmiTagSize == 1); |
| 2768 | STATIC_ASSERT(kPointerSize == 4); |
| 2769 | __ Addu(a2, t0, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 2770 | __ sll(t1, a3, kPointerSizeLog2 - kSmiTagSize); |
| 2771 | __ Addu(a2, a2, t1); |
| 2772 | |
| 2773 | // Calculate location of the first key name. |
| 2774 | __ Addu(t0, |
| 2775 | t0, |
| 2776 | Operand(FixedArray::kHeaderSize - kHeapObjectTag + |
| 2777 | DescriptorArray::kFirstIndex * kPointerSize)); |
| 2778 | // Loop through all the keys in the descriptor array. If one of these is the |
| 2779 | // symbol valueOf the result is false. |
| 2780 | Label entry, loop; |
| 2781 | // The use of t2 to store the valueOf symbol asumes that it is not otherwise |
| 2782 | // used in the loop below. |
danno@chromium.org | 88aa058 | 2012-03-23 15:11:57 +0000 | [diff] [blame] | 2783 | __ LoadRoot(t2, Heap::kvalue_of_symbolRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2784 | __ jmp(&entry); |
| 2785 | __ bind(&loop); |
| 2786 | __ lw(a3, MemOperand(t0, 0)); |
| 2787 | __ Branch(if_false, eq, a3, Operand(t2)); |
| 2788 | __ Addu(t0, t0, Operand(kPointerSize)); |
| 2789 | __ bind(&entry); |
| 2790 | __ Branch(&loop, ne, t0, Operand(a2)); |
| 2791 | |
| 2792 | // If a valueOf property is not found on the object check that it's |
| 2793 | // prototype is the un-modified String prototype. If not result is false. |
| 2794 | __ lw(a2, FieldMemOperand(a1, Map::kPrototypeOffset)); |
| 2795 | __ JumpIfSmi(a2, if_false); |
| 2796 | __ lw(a2, FieldMemOperand(a2, HeapObject::kMapOffset)); |
| 2797 | __ lw(a3, ContextOperand(cp, Context::GLOBAL_INDEX)); |
| 2798 | __ lw(a3, FieldMemOperand(a3, GlobalObject::kGlobalContextOffset)); |
| 2799 | __ lw(a3, ContextOperand(a3, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX)); |
| 2800 | __ Branch(if_false, ne, a2, Operand(a3)); |
| 2801 | |
| 2802 | // Set the bit in the map to indicate that it has been checked safe for |
| 2803 | // default valueOf and set true result. |
| 2804 | __ lbu(a2, FieldMemOperand(a1, Map::kBitField2Offset)); |
| 2805 | __ Or(a2, a2, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf)); |
| 2806 | __ sb(a2, FieldMemOperand(a1, Map::kBitField2Offset)); |
| 2807 | __ jmp(if_true); |
| 2808 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2809 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2810 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2811 | } |
| 2812 | |
| 2813 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2814 | void FullCodeGenerator::EmitIsFunction(CallRuntime* expr) { |
| 2815 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2816 | ASSERT(args->length() == 1); |
| 2817 | |
| 2818 | VisitForAccumulatorValue(args->at(0)); |
| 2819 | |
| 2820 | Label materialize_true, materialize_false; |
| 2821 | Label* if_true = NULL; |
| 2822 | Label* if_false = NULL; |
| 2823 | Label* fall_through = NULL; |
| 2824 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2825 | &if_true, &if_false, &fall_through); |
| 2826 | |
| 2827 | __ JumpIfSmi(v0, if_false); |
| 2828 | __ GetObjectType(v0, a1, a2); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2829 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2830 | __ Branch(if_true, eq, a2, Operand(JS_FUNCTION_TYPE)); |
| 2831 | __ Branch(if_false); |
| 2832 | |
| 2833 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2834 | } |
| 2835 | |
| 2836 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2837 | void FullCodeGenerator::EmitIsArray(CallRuntime* expr) { |
| 2838 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2839 | ASSERT(args->length() == 1); |
| 2840 | |
| 2841 | VisitForAccumulatorValue(args->at(0)); |
| 2842 | |
| 2843 | Label materialize_true, materialize_false; |
| 2844 | Label* if_true = NULL; |
| 2845 | Label* if_false = NULL; |
| 2846 | Label* fall_through = NULL; |
| 2847 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2848 | &if_true, &if_false, &fall_through); |
| 2849 | |
| 2850 | __ JumpIfSmi(v0, if_false); |
| 2851 | __ GetObjectType(v0, a1, a1); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2852 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2853 | Split(eq, a1, Operand(JS_ARRAY_TYPE), |
| 2854 | if_true, if_false, fall_through); |
| 2855 | |
| 2856 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2857 | } |
| 2858 | |
| 2859 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2860 | void FullCodeGenerator::EmitIsRegExp(CallRuntime* expr) { |
| 2861 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2862 | ASSERT(args->length() == 1); |
| 2863 | |
| 2864 | VisitForAccumulatorValue(args->at(0)); |
| 2865 | |
| 2866 | Label materialize_true, materialize_false; |
| 2867 | Label* if_true = NULL; |
| 2868 | Label* if_false = NULL; |
| 2869 | Label* fall_through = NULL; |
| 2870 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2871 | &if_true, &if_false, &fall_through); |
| 2872 | |
| 2873 | __ JumpIfSmi(v0, if_false); |
| 2874 | __ GetObjectType(v0, a1, a1); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2875 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2876 | Split(eq, a1, Operand(JS_REGEXP_TYPE), if_true, if_false, fall_through); |
| 2877 | |
| 2878 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2879 | } |
| 2880 | |
| 2881 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2882 | void FullCodeGenerator::EmitIsConstructCall(CallRuntime* expr) { |
| 2883 | ASSERT(expr->arguments()->length() == 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2884 | |
| 2885 | Label materialize_true, materialize_false; |
| 2886 | Label* if_true = NULL; |
| 2887 | Label* if_false = NULL; |
| 2888 | Label* fall_through = NULL; |
| 2889 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2890 | &if_true, &if_false, &fall_through); |
| 2891 | |
| 2892 | // Get the frame pointer for the calling frame. |
| 2893 | __ lw(a2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 2894 | |
| 2895 | // Skip the arguments adaptor frame if it exists. |
| 2896 | Label check_frame_marker; |
| 2897 | __ lw(a1, MemOperand(a2, StandardFrameConstants::kContextOffset)); |
| 2898 | __ Branch(&check_frame_marker, ne, |
| 2899 | a1, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 2900 | __ lw(a2, MemOperand(a2, StandardFrameConstants::kCallerFPOffset)); |
| 2901 | |
| 2902 | // Check the marker in the calling frame. |
| 2903 | __ bind(&check_frame_marker); |
| 2904 | __ lw(a1, MemOperand(a2, StandardFrameConstants::kMarkerOffset)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2905 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2906 | Split(eq, a1, Operand(Smi::FromInt(StackFrame::CONSTRUCT)), |
| 2907 | if_true, if_false, fall_through); |
| 2908 | |
| 2909 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2910 | } |
| 2911 | |
| 2912 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2913 | void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) { |
| 2914 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2915 | ASSERT(args->length() == 2); |
| 2916 | |
| 2917 | // Load the two objects into registers and perform the comparison. |
| 2918 | VisitForStackValue(args->at(0)); |
| 2919 | VisitForAccumulatorValue(args->at(1)); |
| 2920 | |
| 2921 | Label materialize_true, materialize_false; |
| 2922 | Label* if_true = NULL; |
| 2923 | Label* if_false = NULL; |
| 2924 | Label* fall_through = NULL; |
| 2925 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 2926 | &if_true, &if_false, &fall_through); |
| 2927 | |
| 2928 | __ pop(a1); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2929 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2930 | Split(eq, v0, Operand(a1), if_true, if_false, fall_through); |
| 2931 | |
| 2932 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2933 | } |
| 2934 | |
| 2935 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2936 | void FullCodeGenerator::EmitArguments(CallRuntime* expr) { |
| 2937 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2938 | ASSERT(args->length() == 1); |
| 2939 | |
| 2940 | // ArgumentsAccessStub expects the key in a1 and the formal |
| 2941 | // parameter count in a0. |
| 2942 | VisitForAccumulatorValue(args->at(0)); |
| 2943 | __ mov(a1, v0); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2944 | __ li(a0, Operand(Smi::FromInt(info_->scope()->num_parameters()))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2945 | ArgumentsAccessStub stub(ArgumentsAccessStub::READ_ELEMENT); |
| 2946 | __ CallStub(&stub); |
| 2947 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2948 | } |
| 2949 | |
| 2950 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2951 | void FullCodeGenerator::EmitArgumentsLength(CallRuntime* expr) { |
| 2952 | ASSERT(expr->arguments()->length() == 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2953 | Label exit; |
| 2954 | // Get the number of formal parameters. |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 2955 | __ li(v0, Operand(Smi::FromInt(info_->scope()->num_parameters()))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2956 | |
| 2957 | // Check if the calling frame is an arguments adaptor frame. |
| 2958 | __ lw(a2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); |
| 2959 | __ lw(a3, MemOperand(a2, StandardFrameConstants::kContextOffset)); |
| 2960 | __ Branch(&exit, ne, a3, |
| 2961 | Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
| 2962 | |
| 2963 | // Arguments adaptor case: Read the arguments length from the |
| 2964 | // adaptor frame. |
| 2965 | __ lw(v0, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
| 2966 | |
| 2967 | __ bind(&exit); |
| 2968 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2969 | } |
| 2970 | |
| 2971 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2972 | void FullCodeGenerator::EmitClassOf(CallRuntime* expr) { |
| 2973 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2974 | ASSERT(args->length() == 1); |
| 2975 | Label done, null, function, non_function_constructor; |
| 2976 | |
| 2977 | VisitForAccumulatorValue(args->at(0)); |
| 2978 | |
| 2979 | // If the object is a smi, we return null. |
| 2980 | __ JumpIfSmi(v0, &null); |
| 2981 | |
| 2982 | // Check that the object is a JS object but take special care of JS |
| 2983 | // functions to make sure they have 'Function' as their class. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2984 | // Assume that there are only two callable types, and one of them is at |
| 2985 | // either end of the type range for JS object types. Saves extra comparisons. |
| 2986 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2987 | __ GetObjectType(v0, v0, a1); // Map is now in v0. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2988 | __ Branch(&null, lt, a1, Operand(FIRST_SPEC_OBJECT_TYPE)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2989 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2990 | STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2991 | FIRST_SPEC_OBJECT_TYPE + 1); |
| 2992 | __ Branch(&function, eq, a1, Operand(FIRST_SPEC_OBJECT_TYPE)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2993 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2994 | STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == |
| 2995 | LAST_SPEC_OBJECT_TYPE - 1); |
| 2996 | __ Branch(&function, eq, a1, Operand(LAST_SPEC_OBJECT_TYPE)); |
| 2997 | // Assume that there is no larger type. |
| 2998 | STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == LAST_TYPE - 1); |
| 2999 | |
| 3000 | // Check if the constructor in the map is a JS function. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3001 | __ lw(v0, FieldMemOperand(v0, Map::kConstructorOffset)); |
| 3002 | __ GetObjectType(v0, a1, a1); |
| 3003 | __ Branch(&non_function_constructor, ne, a1, Operand(JS_FUNCTION_TYPE)); |
| 3004 | |
| 3005 | // v0 now contains the constructor function. Grab the |
| 3006 | // instance class name from there. |
| 3007 | __ lw(v0, FieldMemOperand(v0, JSFunction::kSharedFunctionInfoOffset)); |
| 3008 | __ lw(v0, FieldMemOperand(v0, SharedFunctionInfo::kInstanceClassNameOffset)); |
| 3009 | __ Branch(&done); |
| 3010 | |
| 3011 | // Functions have class 'Function'. |
| 3012 | __ bind(&function); |
| 3013 | __ LoadRoot(v0, Heap::kfunction_class_symbolRootIndex); |
| 3014 | __ jmp(&done); |
| 3015 | |
| 3016 | // Objects with a non-function constructor have class 'Object'. |
| 3017 | __ bind(&non_function_constructor); |
lrn@chromium.org | d4e9e22 | 2011-08-03 12:01:58 +0000 | [diff] [blame] | 3018 | __ LoadRoot(v0, Heap::kObject_symbolRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3019 | __ jmp(&done); |
| 3020 | |
| 3021 | // Non-JS objects have class null. |
| 3022 | __ bind(&null); |
| 3023 | __ LoadRoot(v0, Heap::kNullValueRootIndex); |
| 3024 | |
| 3025 | // All done. |
| 3026 | __ bind(&done); |
| 3027 | |
| 3028 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3029 | } |
| 3030 | |
| 3031 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3032 | void FullCodeGenerator::EmitLog(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3033 | // Conditionally generate a log call. |
| 3034 | // Args: |
| 3035 | // 0 (literal string): The type of logging (corresponds to the flags). |
| 3036 | // This is used to determine whether or not to generate the log call. |
| 3037 | // 1 (string): Format string. Access the string at argument index 2 |
| 3038 | // with '%2s' (see Logger::LogRuntime for all the formats). |
| 3039 | // 2 (array): Arguments to the format string. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3040 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3041 | ASSERT_EQ(args->length(), 3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3042 | if (CodeGenerator::ShouldGenerateLog(args->at(0))) { |
| 3043 | VisitForStackValue(args->at(1)); |
| 3044 | VisitForStackValue(args->at(2)); |
| 3045 | __ CallRuntime(Runtime::kLog, 2); |
| 3046 | } |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 3047 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3048 | // Finally, we're expected to leave a value on the top of the stack. |
| 3049 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 3050 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3051 | } |
| 3052 | |
| 3053 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3054 | void FullCodeGenerator::EmitRandomHeapNumber(CallRuntime* expr) { |
| 3055 | ASSERT(expr->arguments()->length() == 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3056 | Label slow_allocate_heapnumber; |
| 3057 | Label heapnumber_allocated; |
| 3058 | |
| 3059 | // Save the new heap number in callee-saved register s0, since |
| 3060 | // we call out to external C code below. |
| 3061 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3062 | __ AllocateHeapNumber(s0, a1, a2, t6, &slow_allocate_heapnumber); |
| 3063 | __ jmp(&heapnumber_allocated); |
| 3064 | |
| 3065 | __ bind(&slow_allocate_heapnumber); |
| 3066 | |
| 3067 | // Allocate a heap number. |
| 3068 | __ CallRuntime(Runtime::kNumberAlloc, 0); |
| 3069 | __ mov(s0, v0); // Save result in s0, so it is saved thru CFunc call. |
| 3070 | |
| 3071 | __ bind(&heapnumber_allocated); |
| 3072 | |
| 3073 | // Convert 32 random bits in v0 to 0.(32 random bits) in a double |
| 3074 | // by computing: |
| 3075 | // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). |
| 3076 | if (CpuFeatures::IsSupported(FPU)) { |
| 3077 | __ PrepareCallCFunction(1, a0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3078 | __ lw(a0, ContextOperand(cp, Context::GLOBAL_INDEX)); |
| 3079 | __ lw(a0, FieldMemOperand(a0, GlobalObject::kGlobalContextOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3080 | __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1); |
| 3081 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3082 | CpuFeatures::Scope scope(FPU); |
| 3083 | // 0x41300000 is the top half of 1.0 x 2^20 as a double. |
| 3084 | __ li(a1, Operand(0x41300000)); |
| 3085 | // Move 0x41300000xxxxxxxx (x = random bits in v0) to FPU. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3086 | __ Move(f12, v0, a1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3087 | // Move 0x4130000000000000 to FPU. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3088 | __ Move(f14, zero_reg, a1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3089 | // Subtract and store the result in the heap number. |
| 3090 | __ sub_d(f0, f12, f14); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 3091 | __ sdc1(f0, FieldMemOperand(s0, HeapNumber::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3092 | __ mov(v0, s0); |
| 3093 | } else { |
| 3094 | __ PrepareCallCFunction(2, a0); |
| 3095 | __ mov(a0, s0); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3096 | __ lw(a1, ContextOperand(cp, Context::GLOBAL_INDEX)); |
| 3097 | __ lw(a1, FieldMemOperand(a1, GlobalObject::kGlobalContextOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3098 | __ CallCFunction( |
| 3099 | ExternalReference::fill_heap_number_with_random_function(isolate()), 2); |
| 3100 | } |
| 3101 | |
| 3102 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3103 | } |
| 3104 | |
| 3105 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3106 | void FullCodeGenerator::EmitSubString(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3107 | // Load the arguments on the stack and call the stub. |
| 3108 | SubStringStub stub; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3109 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3110 | ASSERT(args->length() == 3); |
| 3111 | VisitForStackValue(args->at(0)); |
| 3112 | VisitForStackValue(args->at(1)); |
| 3113 | VisitForStackValue(args->at(2)); |
| 3114 | __ CallStub(&stub); |
| 3115 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3116 | } |
| 3117 | |
| 3118 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3119 | void FullCodeGenerator::EmitRegExpExec(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3120 | // Load the arguments on the stack and call the stub. |
| 3121 | RegExpExecStub stub; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3122 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3123 | ASSERT(args->length() == 4); |
| 3124 | VisitForStackValue(args->at(0)); |
| 3125 | VisitForStackValue(args->at(1)); |
| 3126 | VisitForStackValue(args->at(2)); |
| 3127 | VisitForStackValue(args->at(3)); |
| 3128 | __ CallStub(&stub); |
| 3129 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3130 | } |
| 3131 | |
| 3132 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3133 | void FullCodeGenerator::EmitValueOf(CallRuntime* expr) { |
| 3134 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3135 | ASSERT(args->length() == 1); |
| 3136 | |
| 3137 | VisitForAccumulatorValue(args->at(0)); // Load the object. |
| 3138 | |
| 3139 | Label done; |
| 3140 | // If the object is a smi return the object. |
| 3141 | __ JumpIfSmi(v0, &done); |
| 3142 | // If the object is not a value type, return the object. |
| 3143 | __ GetObjectType(v0, a1, a1); |
| 3144 | __ Branch(&done, ne, a1, Operand(JS_VALUE_TYPE)); |
| 3145 | |
| 3146 | __ lw(v0, FieldMemOperand(v0, JSValue::kValueOffset)); |
| 3147 | |
| 3148 | __ bind(&done); |
| 3149 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3150 | } |
| 3151 | |
| 3152 | |
yangguo@chromium.org | 154ff99 | 2012-03-13 08:09:54 +0000 | [diff] [blame] | 3153 | void FullCodeGenerator::EmitDateField(CallRuntime* expr) { |
| 3154 | ZoneList<Expression*>* args = expr->arguments(); |
| 3155 | ASSERT(args->length() == 2); |
| 3156 | ASSERT_NE(NULL, args->at(1)->AsLiteral()); |
| 3157 | Smi* index = Smi::cast(*(args->at(1)->AsLiteral()->handle())); |
| 3158 | |
| 3159 | VisitForAccumulatorValue(args->at(0)); // Load the object. |
| 3160 | |
| 3161 | Label runtime, done; |
| 3162 | Register object = v0; |
| 3163 | Register result = v0; |
| 3164 | Register scratch0 = t5; |
| 3165 | Register scratch1 = a1; |
| 3166 | |
| 3167 | #ifdef DEBUG |
| 3168 | __ AbortIfSmi(object); |
| 3169 | __ GetObjectType(object, scratch1, scratch1); |
| 3170 | __ Assert(eq, "Trying to get date field from non-date.", |
| 3171 | scratch1, Operand(JS_DATE_TYPE)); |
| 3172 | #endif |
| 3173 | |
| 3174 | if (index->value() == 0) { |
| 3175 | __ lw(result, FieldMemOperand(object, JSDate::kValueOffset)); |
| 3176 | } else { |
| 3177 | if (index->value() < JSDate::kFirstUncachedField) { |
| 3178 | ExternalReference stamp = ExternalReference::date_cache_stamp(isolate()); |
| 3179 | __ li(scratch1, Operand(stamp)); |
| 3180 | __ lw(scratch1, MemOperand(scratch1)); |
| 3181 | __ lw(scratch0, FieldMemOperand(object, JSDate::kCacheStampOffset)); |
| 3182 | __ Branch(&runtime, ne, scratch1, Operand(scratch0)); |
| 3183 | __ lw(result, FieldMemOperand(object, JSDate::kValueOffset + |
| 3184 | kPointerSize * index->value())); |
| 3185 | __ jmp(&done); |
| 3186 | } |
| 3187 | __ bind(&runtime); |
| 3188 | __ PrepareCallCFunction(2, scratch1); |
| 3189 | __ li(a1, Operand(index)); |
| 3190 | __ Move(a0, object); |
| 3191 | __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2); |
| 3192 | __ bind(&done); |
| 3193 | } |
| 3194 | |
| 3195 | context()->Plug(v0); |
| 3196 | } |
| 3197 | |
| 3198 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3199 | void FullCodeGenerator::EmitMathPow(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3200 | // Load the arguments on the stack and call the runtime function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3201 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3202 | ASSERT(args->length() == 2); |
| 3203 | VisitForStackValue(args->at(0)); |
| 3204 | VisitForStackValue(args->at(1)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3205 | if (CpuFeatures::IsSupported(FPU)) { |
| 3206 | MathPowStub stub(MathPowStub::ON_STACK); |
| 3207 | __ CallStub(&stub); |
| 3208 | } else { |
| 3209 | __ CallRuntime(Runtime::kMath_pow, 2); |
| 3210 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3211 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3212 | } |
| 3213 | |
| 3214 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3215 | void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) { |
| 3216 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3217 | ASSERT(args->length() == 2); |
| 3218 | |
| 3219 | VisitForStackValue(args->at(0)); // Load the object. |
| 3220 | VisitForAccumulatorValue(args->at(1)); // Load the value. |
| 3221 | __ pop(a1); // v0 = value. a1 = object. |
| 3222 | |
| 3223 | Label done; |
| 3224 | // If the object is a smi, return the value. |
| 3225 | __ JumpIfSmi(a1, &done); |
| 3226 | |
| 3227 | // If the object is not a value type, return the value. |
| 3228 | __ GetObjectType(a1, a2, a2); |
| 3229 | __ Branch(&done, ne, a2, Operand(JS_VALUE_TYPE)); |
| 3230 | |
| 3231 | // Store the value. |
| 3232 | __ sw(v0, FieldMemOperand(a1, JSValue::kValueOffset)); |
| 3233 | // Update the write barrier. Save the value as it will be |
| 3234 | // overwritten by the write barrier code and is needed afterward. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3235 | __ mov(a2, v0); |
| 3236 | __ RecordWriteField( |
| 3237 | a1, JSValue::kValueOffset, a2, a3, kRAHasBeenSaved, kDontSaveFPRegs); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3238 | |
| 3239 | __ bind(&done); |
| 3240 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3241 | } |
| 3242 | |
| 3243 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3244 | void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) { |
| 3245 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3246 | ASSERT_EQ(args->length(), 1); |
| 3247 | |
| 3248 | // Load the argument on the stack and call the stub. |
| 3249 | VisitForStackValue(args->at(0)); |
| 3250 | |
| 3251 | NumberToStringStub stub; |
| 3252 | __ CallStub(&stub); |
| 3253 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3254 | } |
| 3255 | |
| 3256 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3257 | void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) { |
| 3258 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3259 | ASSERT(args->length() == 1); |
| 3260 | |
| 3261 | VisitForAccumulatorValue(args->at(0)); |
| 3262 | |
| 3263 | Label done; |
| 3264 | StringCharFromCodeGenerator generator(v0, a1); |
| 3265 | generator.GenerateFast(masm_); |
| 3266 | __ jmp(&done); |
| 3267 | |
| 3268 | NopRuntimeCallHelper call_helper; |
| 3269 | generator.GenerateSlow(masm_, call_helper); |
| 3270 | |
| 3271 | __ bind(&done); |
| 3272 | context()->Plug(a1); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3273 | } |
| 3274 | |
| 3275 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3276 | void FullCodeGenerator::EmitStringCharCodeAt(CallRuntime* expr) { |
| 3277 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3278 | ASSERT(args->length() == 2); |
| 3279 | |
| 3280 | VisitForStackValue(args->at(0)); |
| 3281 | VisitForAccumulatorValue(args->at(1)); |
| 3282 | __ mov(a0, result_register()); |
| 3283 | |
| 3284 | Register object = a1; |
| 3285 | Register index = a0; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3286 | Register result = v0; |
| 3287 | |
| 3288 | __ pop(object); |
| 3289 | |
| 3290 | Label need_conversion; |
| 3291 | Label index_out_of_range; |
| 3292 | Label done; |
| 3293 | StringCharCodeAtGenerator generator(object, |
| 3294 | index, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3295 | result, |
| 3296 | &need_conversion, |
| 3297 | &need_conversion, |
| 3298 | &index_out_of_range, |
| 3299 | STRING_INDEX_IS_NUMBER); |
| 3300 | generator.GenerateFast(masm_); |
| 3301 | __ jmp(&done); |
| 3302 | |
| 3303 | __ bind(&index_out_of_range); |
| 3304 | // When the index is out of range, the spec requires us to return |
| 3305 | // NaN. |
| 3306 | __ LoadRoot(result, Heap::kNanValueRootIndex); |
| 3307 | __ jmp(&done); |
| 3308 | |
| 3309 | __ bind(&need_conversion); |
| 3310 | // Load the undefined value into the result register, which will |
| 3311 | // trigger conversion. |
| 3312 | __ LoadRoot(result, Heap::kUndefinedValueRootIndex); |
| 3313 | __ jmp(&done); |
| 3314 | |
| 3315 | NopRuntimeCallHelper call_helper; |
| 3316 | generator.GenerateSlow(masm_, call_helper); |
| 3317 | |
| 3318 | __ bind(&done); |
| 3319 | context()->Plug(result); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3320 | } |
| 3321 | |
| 3322 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3323 | void FullCodeGenerator::EmitStringCharAt(CallRuntime* expr) { |
| 3324 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3325 | ASSERT(args->length() == 2); |
| 3326 | |
| 3327 | VisitForStackValue(args->at(0)); |
| 3328 | VisitForAccumulatorValue(args->at(1)); |
| 3329 | __ mov(a0, result_register()); |
| 3330 | |
| 3331 | Register object = a1; |
| 3332 | Register index = a0; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 3333 | Register scratch = a3; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3334 | Register result = v0; |
| 3335 | |
| 3336 | __ pop(object); |
| 3337 | |
| 3338 | Label need_conversion; |
| 3339 | Label index_out_of_range; |
| 3340 | Label done; |
| 3341 | StringCharAtGenerator generator(object, |
| 3342 | index, |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 3343 | scratch, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3344 | result, |
| 3345 | &need_conversion, |
| 3346 | &need_conversion, |
| 3347 | &index_out_of_range, |
| 3348 | STRING_INDEX_IS_NUMBER); |
| 3349 | generator.GenerateFast(masm_); |
| 3350 | __ jmp(&done); |
| 3351 | |
| 3352 | __ bind(&index_out_of_range); |
| 3353 | // When the index is out of range, the spec requires us to return |
| 3354 | // the empty string. |
| 3355 | __ LoadRoot(result, Heap::kEmptyStringRootIndex); |
| 3356 | __ jmp(&done); |
| 3357 | |
| 3358 | __ bind(&need_conversion); |
| 3359 | // Move smi zero into the result register, which will trigger |
| 3360 | // conversion. |
| 3361 | __ li(result, Operand(Smi::FromInt(0))); |
| 3362 | __ jmp(&done); |
| 3363 | |
| 3364 | NopRuntimeCallHelper call_helper; |
| 3365 | generator.GenerateSlow(masm_, call_helper); |
| 3366 | |
| 3367 | __ bind(&done); |
| 3368 | context()->Plug(result); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3369 | } |
| 3370 | |
| 3371 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3372 | void FullCodeGenerator::EmitStringAdd(CallRuntime* expr) { |
| 3373 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3374 | ASSERT_EQ(2, args->length()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3375 | VisitForStackValue(args->at(0)); |
| 3376 | VisitForStackValue(args->at(1)); |
| 3377 | |
| 3378 | StringAddStub stub(NO_STRING_ADD_FLAGS); |
| 3379 | __ CallStub(&stub); |
| 3380 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3381 | } |
| 3382 | |
| 3383 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3384 | void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) { |
| 3385 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3386 | ASSERT_EQ(2, args->length()); |
| 3387 | |
| 3388 | VisitForStackValue(args->at(0)); |
| 3389 | VisitForStackValue(args->at(1)); |
| 3390 | |
| 3391 | StringCompareStub stub; |
| 3392 | __ CallStub(&stub); |
| 3393 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3394 | } |
| 3395 | |
| 3396 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3397 | void FullCodeGenerator::EmitMathSin(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3398 | // Load the argument on the stack and call the stub. |
| 3399 | TranscendentalCacheStub stub(TranscendentalCache::SIN, |
| 3400 | TranscendentalCacheStub::TAGGED); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3401 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3402 | ASSERT(args->length() == 1); |
| 3403 | VisitForStackValue(args->at(0)); |
| 3404 | __ mov(a0, result_register()); // Stub requires parameter in a0 and on tos. |
| 3405 | __ CallStub(&stub); |
| 3406 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3407 | } |
| 3408 | |
| 3409 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3410 | void FullCodeGenerator::EmitMathCos(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3411 | // Load the argument on the stack and call the stub. |
| 3412 | TranscendentalCacheStub stub(TranscendentalCache::COS, |
| 3413 | TranscendentalCacheStub::TAGGED); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3414 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3415 | ASSERT(args->length() == 1); |
| 3416 | VisitForStackValue(args->at(0)); |
| 3417 | __ mov(a0, result_register()); // Stub requires parameter in a0 and on tos. |
| 3418 | __ CallStub(&stub); |
| 3419 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3420 | } |
| 3421 | |
| 3422 | |
svenpanne@chromium.org | ecb9dd6 | 2011-12-01 08:22:35 +0000 | [diff] [blame] | 3423 | void FullCodeGenerator::EmitMathTan(CallRuntime* expr) { |
| 3424 | // Load the argument on the stack and call the stub. |
| 3425 | TranscendentalCacheStub stub(TranscendentalCache::TAN, |
| 3426 | TranscendentalCacheStub::TAGGED); |
| 3427 | ZoneList<Expression*>* args = expr->arguments(); |
| 3428 | ASSERT(args->length() == 1); |
| 3429 | VisitForStackValue(args->at(0)); |
| 3430 | __ mov(a0, result_register()); // Stub requires parameter in a0 and on tos. |
| 3431 | __ CallStub(&stub); |
| 3432 | context()->Plug(v0); |
| 3433 | } |
| 3434 | |
| 3435 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3436 | void FullCodeGenerator::EmitMathLog(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3437 | // Load the argument on the stack and call the stub. |
| 3438 | TranscendentalCacheStub stub(TranscendentalCache::LOG, |
| 3439 | TranscendentalCacheStub::TAGGED); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3440 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3441 | ASSERT(args->length() == 1); |
| 3442 | VisitForStackValue(args->at(0)); |
| 3443 | __ mov(a0, result_register()); // Stub requires parameter in a0 and on tos. |
| 3444 | __ CallStub(&stub); |
| 3445 | context()->Plug(v0); |
| 3446 | } |
| 3447 | |
| 3448 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3449 | void FullCodeGenerator::EmitMathSqrt(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3450 | // Load the argument on the stack and call the runtime function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3451 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3452 | ASSERT(args->length() == 1); |
| 3453 | VisitForStackValue(args->at(0)); |
| 3454 | __ CallRuntime(Runtime::kMath_sqrt, 1); |
| 3455 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3456 | } |
| 3457 | |
| 3458 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3459 | void FullCodeGenerator::EmitCallFunction(CallRuntime* expr) { |
| 3460 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3461 | ASSERT(args->length() >= 2); |
| 3462 | |
| 3463 | int arg_count = args->length() - 2; // 2 ~ receiver and function. |
| 3464 | for (int i = 0; i < arg_count + 1; i++) { |
| 3465 | VisitForStackValue(args->at(i)); |
| 3466 | } |
| 3467 | VisitForAccumulatorValue(args->last()); // Function. |
| 3468 | |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 3469 | // Check for proxy. |
| 3470 | Label proxy, done; |
| 3471 | __ GetObjectType(v0, a1, a1); |
| 3472 | __ Branch(&proxy, eq, a1, Operand(JS_FUNCTION_PROXY_TYPE)); |
| 3473 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3474 | // InvokeFunction requires the function in a1. Move it in there. |
| 3475 | __ mov(a1, result_register()); |
| 3476 | ParameterCount count(arg_count); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 3477 | __ InvokeFunction(a1, count, CALL_FUNCTION, |
| 3478 | NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3479 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 3480 | __ jmp(&done); |
| 3481 | |
| 3482 | __ bind(&proxy); |
| 3483 | __ push(v0); |
| 3484 | __ CallRuntime(Runtime::kCall, args->length()); |
| 3485 | __ bind(&done); |
| 3486 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3487 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3488 | } |
| 3489 | |
| 3490 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3491 | void FullCodeGenerator::EmitRegExpConstructResult(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3492 | RegExpConstructResultStub stub; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3493 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3494 | ASSERT(args->length() == 3); |
| 3495 | VisitForStackValue(args->at(0)); |
| 3496 | VisitForStackValue(args->at(1)); |
| 3497 | VisitForStackValue(args->at(2)); |
| 3498 | __ CallStub(&stub); |
| 3499 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3500 | } |
| 3501 | |
| 3502 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3503 | void FullCodeGenerator::EmitSwapElements(CallRuntime* expr) { |
| 3504 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3505 | ASSERT(args->length() == 3); |
| 3506 | VisitForStackValue(args->at(0)); |
| 3507 | VisitForStackValue(args->at(1)); |
| 3508 | VisitForStackValue(args->at(2)); |
| 3509 | Label done; |
| 3510 | Label slow_case; |
| 3511 | Register object = a0; |
| 3512 | Register index1 = a1; |
| 3513 | Register index2 = a2; |
| 3514 | Register elements = a3; |
| 3515 | Register scratch1 = t0; |
| 3516 | Register scratch2 = t1; |
| 3517 | |
| 3518 | __ lw(object, MemOperand(sp, 2 * kPointerSize)); |
| 3519 | // Fetch the map and check if array is in fast case. |
| 3520 | // Check that object doesn't require security checks and |
| 3521 | // has no indexed interceptor. |
| 3522 | __ GetObjectType(object, scratch1, scratch2); |
| 3523 | __ Branch(&slow_case, ne, scratch2, Operand(JS_ARRAY_TYPE)); |
| 3524 | // Map is now in scratch1. |
| 3525 | |
| 3526 | __ lbu(scratch2, FieldMemOperand(scratch1, Map::kBitFieldOffset)); |
| 3527 | __ And(scratch2, scratch2, Operand(KeyedLoadIC::kSlowCaseBitFieldMask)); |
| 3528 | __ Branch(&slow_case, ne, scratch2, Operand(zero_reg)); |
| 3529 | |
| 3530 | // Check the object's elements are in fast case and writable. |
| 3531 | __ lw(elements, FieldMemOperand(object, JSObject::kElementsOffset)); |
| 3532 | __ lw(scratch1, FieldMemOperand(elements, HeapObject::kMapOffset)); |
| 3533 | __ LoadRoot(scratch2, Heap::kFixedArrayMapRootIndex); |
| 3534 | __ Branch(&slow_case, ne, scratch1, Operand(scratch2)); |
| 3535 | |
| 3536 | // Check that both indices are smis. |
| 3537 | __ lw(index1, MemOperand(sp, 1 * kPointerSize)); |
| 3538 | __ lw(index2, MemOperand(sp, 0)); |
| 3539 | __ JumpIfNotBothSmi(index1, index2, &slow_case); |
| 3540 | |
| 3541 | // Check that both indices are valid. |
| 3542 | Label not_hi; |
| 3543 | __ lw(scratch1, FieldMemOperand(object, JSArray::kLengthOffset)); |
| 3544 | __ Branch(&slow_case, ls, scratch1, Operand(index1)); |
| 3545 | __ Branch(¬_hi, NegateCondition(hi), scratch1, Operand(index1)); |
| 3546 | __ Branch(&slow_case, ls, scratch1, Operand(index2)); |
| 3547 | __ bind(¬_hi); |
| 3548 | |
| 3549 | // Bring the address of the elements into index1 and index2. |
| 3550 | __ Addu(scratch1, elements, |
| 3551 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3552 | __ sll(index1, index1, kPointerSizeLog2 - kSmiTagSize); |
| 3553 | __ Addu(index1, scratch1, index1); |
| 3554 | __ sll(index2, index2, kPointerSizeLog2 - kSmiTagSize); |
| 3555 | __ Addu(index2, scratch1, index2); |
| 3556 | |
| 3557 | // Swap elements. |
| 3558 | __ lw(scratch1, MemOperand(index1, 0)); |
| 3559 | __ lw(scratch2, MemOperand(index2, 0)); |
| 3560 | __ sw(scratch1, MemOperand(index2, 0)); |
| 3561 | __ sw(scratch2, MemOperand(index1, 0)); |
| 3562 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3563 | Label no_remembered_set; |
| 3564 | __ CheckPageFlag(elements, |
| 3565 | scratch1, |
| 3566 | 1 << MemoryChunk::SCAN_ON_SCAVENGE, |
| 3567 | ne, |
| 3568 | &no_remembered_set); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3569 | // Possible optimization: do a check that both values are Smis |
| 3570 | // (or them and test against Smi mask). |
| 3571 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3572 | // We are swapping two objects in an array and the incremental marker never |
| 3573 | // pauses in the middle of scanning a single object. Therefore the |
| 3574 | // incremental marker is not disturbed, so we don't need to call the |
| 3575 | // RecordWrite stub that notifies the incremental marker. |
| 3576 | __ RememberedSetHelper(elements, |
| 3577 | index1, |
| 3578 | scratch2, |
| 3579 | kDontSaveFPRegs, |
| 3580 | MacroAssembler::kFallThroughAtEnd); |
| 3581 | __ RememberedSetHelper(elements, |
| 3582 | index2, |
| 3583 | scratch2, |
| 3584 | kDontSaveFPRegs, |
| 3585 | MacroAssembler::kFallThroughAtEnd); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3586 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3587 | __ bind(&no_remembered_set); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3588 | // We are done. Drop elements from the stack, and return undefined. |
| 3589 | __ Drop(3); |
| 3590 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 3591 | __ jmp(&done); |
| 3592 | |
| 3593 | __ bind(&slow_case); |
| 3594 | __ CallRuntime(Runtime::kSwapElements, 3); |
| 3595 | |
| 3596 | __ bind(&done); |
| 3597 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3598 | } |
| 3599 | |
| 3600 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3601 | void FullCodeGenerator::EmitGetFromCache(CallRuntime* expr) { |
| 3602 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3603 | ASSERT_EQ(2, args->length()); |
| 3604 | |
| 3605 | ASSERT_NE(NULL, args->at(0)->AsLiteral()); |
| 3606 | int cache_id = Smi::cast(*(args->at(0)->AsLiteral()->handle()))->value(); |
| 3607 | |
| 3608 | Handle<FixedArray> jsfunction_result_caches( |
| 3609 | isolate()->global_context()->jsfunction_result_caches()); |
| 3610 | if (jsfunction_result_caches->length() <= cache_id) { |
| 3611 | __ Abort("Attempt to use undefined cache."); |
| 3612 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 3613 | context()->Plug(v0); |
| 3614 | return; |
| 3615 | } |
| 3616 | |
| 3617 | VisitForAccumulatorValue(args->at(1)); |
| 3618 | |
| 3619 | Register key = v0; |
| 3620 | Register cache = a1; |
| 3621 | __ lw(cache, ContextOperand(cp, Context::GLOBAL_INDEX)); |
| 3622 | __ lw(cache, FieldMemOperand(cache, GlobalObject::kGlobalContextOffset)); |
| 3623 | __ lw(cache, |
| 3624 | ContextOperand( |
| 3625 | cache, Context::JSFUNCTION_RESULT_CACHES_INDEX)); |
| 3626 | __ lw(cache, |
| 3627 | FieldMemOperand(cache, FixedArray::OffsetOfElementAt(cache_id))); |
| 3628 | |
| 3629 | |
| 3630 | Label done, not_found; |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 3631 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3632 | __ lw(a2, FieldMemOperand(cache, JSFunctionResultCache::kFingerOffset)); |
| 3633 | // a2 now holds finger offset as a smi. |
| 3634 | __ Addu(a3, cache, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3635 | // a3 now points to the start of fixed array elements. |
| 3636 | __ sll(at, a2, kPointerSizeLog2 - kSmiTagSize); |
| 3637 | __ addu(a3, a3, at); |
| 3638 | // a3 now points to key of indexed element of cache. |
| 3639 | __ lw(a2, MemOperand(a3)); |
| 3640 | __ Branch(¬_found, ne, key, Operand(a2)); |
| 3641 | |
| 3642 | __ lw(v0, MemOperand(a3, kPointerSize)); |
| 3643 | __ Branch(&done); |
| 3644 | |
| 3645 | __ bind(¬_found); |
| 3646 | // Call runtime to perform the lookup. |
| 3647 | __ Push(cache, key); |
| 3648 | __ CallRuntime(Runtime::kGetFromCache, 2); |
| 3649 | |
| 3650 | __ bind(&done); |
| 3651 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3652 | } |
| 3653 | |
| 3654 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3655 | void FullCodeGenerator::EmitIsRegExpEquivalent(CallRuntime* expr) { |
| 3656 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3657 | ASSERT_EQ(2, args->length()); |
| 3658 | |
| 3659 | Register right = v0; |
| 3660 | Register left = a1; |
| 3661 | Register tmp = a2; |
| 3662 | Register tmp2 = a3; |
| 3663 | |
| 3664 | VisitForStackValue(args->at(0)); |
| 3665 | VisitForAccumulatorValue(args->at(1)); // Result (right) in v0. |
| 3666 | __ pop(left); |
| 3667 | |
| 3668 | Label done, fail, ok; |
| 3669 | __ Branch(&ok, eq, left, Operand(right)); |
| 3670 | // Fail if either is a non-HeapObject. |
| 3671 | __ And(tmp, left, Operand(right)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3672 | __ JumpIfSmi(tmp, &fail); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3673 | __ lw(tmp, FieldMemOperand(left, HeapObject::kMapOffset)); |
| 3674 | __ lbu(tmp2, FieldMemOperand(tmp, Map::kInstanceTypeOffset)); |
| 3675 | __ Branch(&fail, ne, tmp2, Operand(JS_REGEXP_TYPE)); |
| 3676 | __ lw(tmp2, FieldMemOperand(right, HeapObject::kMapOffset)); |
| 3677 | __ Branch(&fail, ne, tmp, Operand(tmp2)); |
| 3678 | __ lw(tmp, FieldMemOperand(left, JSRegExp::kDataOffset)); |
| 3679 | __ lw(tmp2, FieldMemOperand(right, JSRegExp::kDataOffset)); |
| 3680 | __ Branch(&ok, eq, tmp, Operand(tmp2)); |
| 3681 | __ bind(&fail); |
| 3682 | __ LoadRoot(v0, Heap::kFalseValueRootIndex); |
| 3683 | __ jmp(&done); |
| 3684 | __ bind(&ok); |
| 3685 | __ LoadRoot(v0, Heap::kTrueValueRootIndex); |
| 3686 | __ bind(&done); |
| 3687 | |
| 3688 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3689 | } |
| 3690 | |
| 3691 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3692 | void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) { |
| 3693 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3694 | VisitForAccumulatorValue(args->at(0)); |
| 3695 | |
| 3696 | Label materialize_true, materialize_false; |
| 3697 | Label* if_true = NULL; |
| 3698 | Label* if_false = NULL; |
| 3699 | Label* fall_through = NULL; |
| 3700 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 3701 | &if_true, &if_false, &fall_through); |
| 3702 | |
| 3703 | __ lw(a0, FieldMemOperand(v0, String::kHashFieldOffset)); |
| 3704 | __ And(a0, a0, Operand(String::kContainsCachedArrayIndexMask)); |
| 3705 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3706 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3707 | Split(eq, a0, Operand(zero_reg), if_true, if_false, fall_through); |
| 3708 | |
| 3709 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3710 | } |
| 3711 | |
| 3712 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3713 | void FullCodeGenerator::EmitGetCachedArrayIndex(CallRuntime* expr) { |
| 3714 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3715 | ASSERT(args->length() == 1); |
| 3716 | VisitForAccumulatorValue(args->at(0)); |
| 3717 | |
| 3718 | if (FLAG_debug_code) { |
| 3719 | __ AbortIfNotString(v0); |
| 3720 | } |
| 3721 | |
| 3722 | __ lw(v0, FieldMemOperand(v0, String::kHashFieldOffset)); |
| 3723 | __ IndexFromHash(v0, v0); |
| 3724 | |
| 3725 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3726 | } |
| 3727 | |
| 3728 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3729 | void FullCodeGenerator::EmitFastAsciiArrayJoin(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3730 | Label bailout, done, one_char_separator, long_separator, |
| 3731 | non_trivial_array, not_size_one_array, loop, |
| 3732 | empty_separator_loop, one_char_separator_loop, |
| 3733 | one_char_separator_loop_entry, long_separator_loop; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3734 | ZoneList<Expression*>* args = expr->arguments(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3735 | ASSERT(args->length() == 2); |
| 3736 | VisitForStackValue(args->at(1)); |
| 3737 | VisitForAccumulatorValue(args->at(0)); |
| 3738 | |
| 3739 | // All aliases of the same register have disjoint lifetimes. |
| 3740 | Register array = v0; |
| 3741 | Register elements = no_reg; // Will be v0. |
| 3742 | Register result = no_reg; // Will be v0. |
| 3743 | Register separator = a1; |
| 3744 | Register array_length = a2; |
| 3745 | Register result_pos = no_reg; // Will be a2. |
| 3746 | Register string_length = a3; |
| 3747 | Register string = t0; |
| 3748 | Register element = t1; |
| 3749 | Register elements_end = t2; |
| 3750 | Register scratch1 = t3; |
| 3751 | Register scratch2 = t5; |
| 3752 | Register scratch3 = t4; |
| 3753 | Register scratch4 = v1; |
| 3754 | |
| 3755 | // Separator operand is on the stack. |
| 3756 | __ pop(separator); |
| 3757 | |
| 3758 | // Check that the array is a JSArray. |
| 3759 | __ JumpIfSmi(array, &bailout); |
| 3760 | __ GetObjectType(array, scratch1, scratch2); |
| 3761 | __ Branch(&bailout, ne, scratch2, Operand(JS_ARRAY_TYPE)); |
| 3762 | |
| 3763 | // Check that the array has fast elements. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 3764 | __ CheckFastElements(scratch1, scratch2, &bailout); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3765 | |
| 3766 | // If the array has length zero, return the empty string. |
| 3767 | __ lw(array_length, FieldMemOperand(array, JSArray::kLengthOffset)); |
| 3768 | __ SmiUntag(array_length); |
| 3769 | __ Branch(&non_trivial_array, ne, array_length, Operand(zero_reg)); |
| 3770 | __ LoadRoot(v0, Heap::kEmptyStringRootIndex); |
| 3771 | __ Branch(&done); |
| 3772 | |
| 3773 | __ bind(&non_trivial_array); |
| 3774 | |
| 3775 | // Get the FixedArray containing array's elements. |
| 3776 | elements = array; |
| 3777 | __ lw(elements, FieldMemOperand(array, JSArray::kElementsOffset)); |
| 3778 | array = no_reg; // End of array's live range. |
| 3779 | |
| 3780 | // Check that all array elements are sequential ASCII strings, and |
| 3781 | // accumulate the sum of their lengths, as a smi-encoded value. |
| 3782 | __ mov(string_length, zero_reg); |
| 3783 | __ Addu(element, |
| 3784 | elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3785 | __ sll(elements_end, array_length, kPointerSizeLog2); |
| 3786 | __ Addu(elements_end, element, elements_end); |
| 3787 | // Loop condition: while (element < elements_end). |
| 3788 | // Live values in registers: |
| 3789 | // elements: Fixed array of strings. |
| 3790 | // array_length: Length of the fixed array of strings (not smi) |
| 3791 | // separator: Separator string |
| 3792 | // string_length: Accumulated sum of string lengths (smi). |
| 3793 | // element: Current array element. |
| 3794 | // elements_end: Array end. |
| 3795 | if (FLAG_debug_code) { |
| 3796 | __ Assert(gt, "No empty arrays here in EmitFastAsciiArrayJoin", |
| 3797 | array_length, Operand(zero_reg)); |
| 3798 | } |
| 3799 | __ bind(&loop); |
| 3800 | __ lw(string, MemOperand(element)); |
| 3801 | __ Addu(element, element, kPointerSize); |
| 3802 | __ JumpIfSmi(string, &bailout); |
| 3803 | __ lw(scratch1, FieldMemOperand(string, HeapObject::kMapOffset)); |
| 3804 | __ lbu(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 3805 | __ JumpIfInstanceTypeIsNotSequentialAscii(scratch1, scratch2, &bailout); |
| 3806 | __ lw(scratch1, FieldMemOperand(string, SeqAsciiString::kLengthOffset)); |
| 3807 | __ AdduAndCheckForOverflow(string_length, string_length, scratch1, scratch3); |
| 3808 | __ BranchOnOverflow(&bailout, scratch3); |
| 3809 | __ Branch(&loop, lt, element, Operand(elements_end)); |
| 3810 | |
| 3811 | // If array_length is 1, return elements[0], a string. |
| 3812 | __ Branch(¬_size_one_array, ne, array_length, Operand(1)); |
| 3813 | __ lw(v0, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
| 3814 | __ Branch(&done); |
| 3815 | |
| 3816 | __ bind(¬_size_one_array); |
| 3817 | |
| 3818 | // Live values in registers: |
| 3819 | // separator: Separator string |
| 3820 | // array_length: Length of the array. |
| 3821 | // string_length: Sum of string lengths (smi). |
| 3822 | // elements: FixedArray of strings. |
| 3823 | |
| 3824 | // Check that the separator is a flat ASCII string. |
| 3825 | __ JumpIfSmi(separator, &bailout); |
| 3826 | __ lw(scratch1, FieldMemOperand(separator, HeapObject::kMapOffset)); |
| 3827 | __ lbu(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 3828 | __ JumpIfInstanceTypeIsNotSequentialAscii(scratch1, scratch2, &bailout); |
| 3829 | |
| 3830 | // Add (separator length times array_length) - separator length to the |
| 3831 | // string_length to get the length of the result string. array_length is not |
| 3832 | // smi but the other values are, so the result is a smi. |
| 3833 | __ lw(scratch1, FieldMemOperand(separator, SeqAsciiString::kLengthOffset)); |
| 3834 | __ Subu(string_length, string_length, Operand(scratch1)); |
| 3835 | __ Mult(array_length, scratch1); |
| 3836 | // Check for smi overflow. No overflow if higher 33 bits of 64-bit result are |
| 3837 | // zero. |
| 3838 | __ mfhi(scratch2); |
| 3839 | __ Branch(&bailout, ne, scratch2, Operand(zero_reg)); |
| 3840 | __ mflo(scratch2); |
| 3841 | __ And(scratch3, scratch2, Operand(0x80000000)); |
| 3842 | __ Branch(&bailout, ne, scratch3, Operand(zero_reg)); |
| 3843 | __ AdduAndCheckForOverflow(string_length, string_length, scratch2, scratch3); |
| 3844 | __ BranchOnOverflow(&bailout, scratch3); |
| 3845 | __ SmiUntag(string_length); |
| 3846 | |
| 3847 | // Get first element in the array to free up the elements register to be used |
| 3848 | // for the result. |
| 3849 | __ Addu(element, |
| 3850 | elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3851 | result = elements; // End of live range for elements. |
| 3852 | elements = no_reg; |
| 3853 | // Live values in registers: |
| 3854 | // element: First array element |
| 3855 | // separator: Separator string |
| 3856 | // string_length: Length of result string (not smi) |
| 3857 | // array_length: Length of the array. |
| 3858 | __ AllocateAsciiString(result, |
| 3859 | string_length, |
| 3860 | scratch1, |
| 3861 | scratch2, |
| 3862 | elements_end, |
| 3863 | &bailout); |
| 3864 | // Prepare for looping. Set up elements_end to end of the array. Set |
| 3865 | // result_pos to the position of the result where to write the first |
| 3866 | // character. |
| 3867 | __ sll(elements_end, array_length, kPointerSizeLog2); |
| 3868 | __ Addu(elements_end, element, elements_end); |
| 3869 | result_pos = array_length; // End of live range for array_length. |
| 3870 | array_length = no_reg; |
| 3871 | __ Addu(result_pos, |
| 3872 | result, |
| 3873 | Operand(SeqAsciiString::kHeaderSize - kHeapObjectTag)); |
| 3874 | |
| 3875 | // Check the length of the separator. |
| 3876 | __ lw(scratch1, FieldMemOperand(separator, SeqAsciiString::kLengthOffset)); |
| 3877 | __ li(at, Operand(Smi::FromInt(1))); |
| 3878 | __ Branch(&one_char_separator, eq, scratch1, Operand(at)); |
| 3879 | __ Branch(&long_separator, gt, scratch1, Operand(at)); |
| 3880 | |
| 3881 | // Empty separator case. |
| 3882 | __ bind(&empty_separator_loop); |
| 3883 | // Live values in registers: |
| 3884 | // result_pos: the position to which we are currently copying characters. |
| 3885 | // element: Current array element. |
| 3886 | // elements_end: Array end. |
| 3887 | |
| 3888 | // Copy next array element to the result. |
| 3889 | __ lw(string, MemOperand(element)); |
| 3890 | __ Addu(element, element, kPointerSize); |
| 3891 | __ lw(string_length, FieldMemOperand(string, String::kLengthOffset)); |
| 3892 | __ SmiUntag(string_length); |
| 3893 | __ Addu(string, string, SeqAsciiString::kHeaderSize - kHeapObjectTag); |
| 3894 | __ CopyBytes(string, result_pos, string_length, scratch1); |
| 3895 | // End while (element < elements_end). |
| 3896 | __ Branch(&empty_separator_loop, lt, element, Operand(elements_end)); |
| 3897 | ASSERT(result.is(v0)); |
| 3898 | __ Branch(&done); |
| 3899 | |
| 3900 | // One-character separator case. |
| 3901 | __ bind(&one_char_separator); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3902 | // Replace separator with its ASCII character value. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3903 | __ lbu(separator, FieldMemOperand(separator, SeqAsciiString::kHeaderSize)); |
| 3904 | // Jump into the loop after the code that copies the separator, so the first |
| 3905 | // element is not preceded by a separator. |
| 3906 | __ jmp(&one_char_separator_loop_entry); |
| 3907 | |
| 3908 | __ bind(&one_char_separator_loop); |
| 3909 | // Live values in registers: |
| 3910 | // result_pos: the position to which we are currently copying characters. |
| 3911 | // element: Current array element. |
| 3912 | // elements_end: Array end. |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 3913 | // separator: Single separator ASCII char (in lower byte). |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3914 | |
| 3915 | // Copy the separator character to the result. |
| 3916 | __ sb(separator, MemOperand(result_pos)); |
| 3917 | __ Addu(result_pos, result_pos, 1); |
| 3918 | |
| 3919 | // Copy next array element to the result. |
| 3920 | __ bind(&one_char_separator_loop_entry); |
| 3921 | __ lw(string, MemOperand(element)); |
| 3922 | __ Addu(element, element, kPointerSize); |
| 3923 | __ lw(string_length, FieldMemOperand(string, String::kLengthOffset)); |
| 3924 | __ SmiUntag(string_length); |
| 3925 | __ Addu(string, string, SeqAsciiString::kHeaderSize - kHeapObjectTag); |
| 3926 | __ CopyBytes(string, result_pos, string_length, scratch1); |
| 3927 | // End while (element < elements_end). |
| 3928 | __ Branch(&one_char_separator_loop, lt, element, Operand(elements_end)); |
| 3929 | ASSERT(result.is(v0)); |
| 3930 | __ Branch(&done); |
| 3931 | |
| 3932 | // Long separator case (separator is more than one character). Entry is at the |
| 3933 | // label long_separator below. |
| 3934 | __ bind(&long_separator_loop); |
| 3935 | // Live values in registers: |
| 3936 | // result_pos: the position to which we are currently copying characters. |
| 3937 | // element: Current array element. |
| 3938 | // elements_end: Array end. |
| 3939 | // separator: Separator string. |
| 3940 | |
| 3941 | // Copy the separator to the result. |
| 3942 | __ lw(string_length, FieldMemOperand(separator, String::kLengthOffset)); |
| 3943 | __ SmiUntag(string_length); |
| 3944 | __ Addu(string, |
| 3945 | separator, |
| 3946 | Operand(SeqAsciiString::kHeaderSize - kHeapObjectTag)); |
| 3947 | __ CopyBytes(string, result_pos, string_length, scratch1); |
| 3948 | |
| 3949 | __ bind(&long_separator); |
| 3950 | __ lw(string, MemOperand(element)); |
| 3951 | __ Addu(element, element, kPointerSize); |
| 3952 | __ lw(string_length, FieldMemOperand(string, String::kLengthOffset)); |
| 3953 | __ SmiUntag(string_length); |
| 3954 | __ Addu(string, string, SeqAsciiString::kHeaderSize - kHeapObjectTag); |
| 3955 | __ CopyBytes(string, result_pos, string_length, scratch1); |
| 3956 | // End while (element < elements_end). |
| 3957 | __ Branch(&long_separator_loop, lt, element, Operand(elements_end)); |
| 3958 | ASSERT(result.is(v0)); |
| 3959 | __ Branch(&done); |
| 3960 | |
| 3961 | __ bind(&bailout); |
| 3962 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 3963 | __ bind(&done); |
| 3964 | context()->Plug(v0); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3965 | } |
| 3966 | |
| 3967 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 3968 | void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3969 | Handle<String> name = expr->name(); |
| 3970 | if (name->length() > 0 && name->Get(0) == '_') { |
| 3971 | Comment cmnt(masm_, "[ InlineRuntimeCall"); |
| 3972 | EmitInlineRuntimeCall(expr); |
| 3973 | return; |
| 3974 | } |
| 3975 | |
| 3976 | Comment cmnt(masm_, "[ CallRuntime"); |
| 3977 | ZoneList<Expression*>* args = expr->arguments(); |
| 3978 | |
| 3979 | if (expr->is_jsruntime()) { |
| 3980 | // Prepare for calling JS runtime function. |
| 3981 | __ lw(a0, GlobalObjectOperand()); |
| 3982 | __ lw(a0, FieldMemOperand(a0, GlobalObject::kBuiltinsOffset)); |
| 3983 | __ push(a0); |
| 3984 | } |
| 3985 | |
| 3986 | // Push the arguments ("left-to-right"). |
| 3987 | int arg_count = args->length(); |
| 3988 | for (int i = 0; i < arg_count; i++) { |
| 3989 | VisitForStackValue(args->at(i)); |
| 3990 | } |
| 3991 | |
| 3992 | if (expr->is_jsruntime()) { |
| 3993 | // Call the JS runtime function. |
| 3994 | __ li(a2, Operand(expr->name())); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3995 | RelocInfo::Mode mode = RelocInfo::CODE_TARGET; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3996 | Handle<Code> ic = |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 3997 | isolate()->stub_cache()->ComputeCallInitialize(arg_count, mode); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 3998 | CallIC(ic, mode, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3999 | // Restore context register. |
| 4000 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 4001 | } else { |
| 4002 | // Call the C runtime function. |
| 4003 | __ CallRuntime(expr->function(), arg_count); |
| 4004 | } |
| 4005 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4006 | } |
| 4007 | |
| 4008 | |
| 4009 | void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4010 | switch (expr->op()) { |
| 4011 | case Token::DELETE: { |
| 4012 | Comment cmnt(masm_, "[ UnaryOperation (DELETE)"); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4013 | Property* property = expr->expression()->AsProperty(); |
| 4014 | VariableProxy* proxy = expr->expression()->AsVariableProxy(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4015 | |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4016 | if (property != NULL) { |
| 4017 | VisitForStackValue(property->obj()); |
| 4018 | VisitForStackValue(property->key()); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4019 | StrictModeFlag strict_mode_flag = (language_mode() == CLASSIC_MODE) |
| 4020 | ? kNonStrictMode : kStrictMode; |
| 4021 | __ li(a1, Operand(Smi::FromInt(strict_mode_flag))); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 4022 | __ push(a1); |
| 4023 | __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION); |
| 4024 | context()->Plug(v0); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4025 | } else if (proxy != NULL) { |
| 4026 | Variable* var = proxy->var(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4027 | // Delete of an unqualified identifier is disallowed in strict mode |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4028 | // but "delete this" is allowed. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4029 | ASSERT(language_mode() == CLASSIC_MODE || var->is_this()); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4030 | if (var->IsUnallocated()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4031 | __ lw(a2, GlobalObjectOperand()); |
| 4032 | __ li(a1, Operand(var->name())); |
| 4033 | __ li(a0, Operand(Smi::FromInt(kNonStrictMode))); |
| 4034 | __ Push(a2, a1, a0); |
| 4035 | __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION); |
| 4036 | context()->Plug(v0); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4037 | } else if (var->IsStackAllocated() || var->IsContextSlot()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4038 | // Result of deleting non-global, non-dynamic variables is false. |
| 4039 | // The subexpression does not have side effects. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4040 | context()->Plug(var->is_this()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4041 | } else { |
| 4042 | // Non-global variable. Call the runtime to try to delete from the |
| 4043 | // context where the variable was introduced. |
| 4044 | __ push(context_register()); |
| 4045 | __ li(a2, Operand(var->name())); |
| 4046 | __ push(a2); |
| 4047 | __ CallRuntime(Runtime::kDeleteContextSlot, 2); |
| 4048 | context()->Plug(v0); |
| 4049 | } |
| 4050 | } else { |
| 4051 | // Result of deleting non-property, non-variable reference is true. |
| 4052 | // The subexpression may have side effects. |
| 4053 | VisitForEffect(expr->expression()); |
| 4054 | context()->Plug(true); |
| 4055 | } |
| 4056 | break; |
| 4057 | } |
| 4058 | |
| 4059 | case Token::VOID: { |
| 4060 | Comment cmnt(masm_, "[ UnaryOperation (VOID)"); |
| 4061 | VisitForEffect(expr->expression()); |
| 4062 | context()->Plug(Heap::kUndefinedValueRootIndex); |
| 4063 | break; |
| 4064 | } |
| 4065 | |
| 4066 | case Token::NOT: { |
| 4067 | Comment cmnt(masm_, "[ UnaryOperation (NOT)"); |
| 4068 | if (context()->IsEffect()) { |
| 4069 | // Unary NOT has no side effects so it's only necessary to visit the |
| 4070 | // subexpression. Match the optimizing compiler by not branching. |
| 4071 | VisitForEffect(expr->expression()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4072 | } else if (context()->IsTest()) { |
| 4073 | const TestContext* test = TestContext::cast(context()); |
| 4074 | // The labels are swapped for the recursive call. |
| 4075 | VisitForControl(expr->expression(), |
| 4076 | test->false_label(), |
| 4077 | test->true_label(), |
| 4078 | test->fall_through()); |
| 4079 | context()->Plug(test->true_label(), test->false_label()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4080 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4081 | // We handle value contexts explicitly rather than simply visiting |
| 4082 | // for control and plugging the control flow into the context, |
| 4083 | // because we need to prepare a pair of extra administrative AST ids |
| 4084 | // for the optimizing compiler. |
| 4085 | ASSERT(context()->IsAccumulatorValue() || context()->IsStackValue()); |
| 4086 | Label materialize_true, materialize_false, done; |
| 4087 | VisitForControl(expr->expression(), |
| 4088 | &materialize_false, |
| 4089 | &materialize_true, |
| 4090 | &materialize_true); |
| 4091 | __ bind(&materialize_true); |
| 4092 | PrepareForBailoutForId(expr->MaterializeTrueId(), NO_REGISTERS); |
| 4093 | __ LoadRoot(v0, Heap::kTrueValueRootIndex); |
| 4094 | if (context()->IsStackValue()) __ push(v0); |
| 4095 | __ jmp(&done); |
| 4096 | __ bind(&materialize_false); |
| 4097 | PrepareForBailoutForId(expr->MaterializeFalseId(), NO_REGISTERS); |
| 4098 | __ LoadRoot(v0, Heap::kFalseValueRootIndex); |
| 4099 | if (context()->IsStackValue()) __ push(v0); |
| 4100 | __ bind(&done); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4101 | } |
| 4102 | break; |
| 4103 | } |
| 4104 | |
| 4105 | case Token::TYPEOF: { |
| 4106 | Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)"); |
| 4107 | { StackValueContext context(this); |
| 4108 | VisitForTypeofValue(expr->expression()); |
| 4109 | } |
| 4110 | __ CallRuntime(Runtime::kTypeof, 1); |
| 4111 | context()->Plug(v0); |
| 4112 | break; |
| 4113 | } |
| 4114 | |
| 4115 | case Token::ADD: { |
| 4116 | Comment cmt(masm_, "[ UnaryOperation (ADD)"); |
| 4117 | VisitForAccumulatorValue(expr->expression()); |
| 4118 | Label no_conversion; |
| 4119 | __ JumpIfSmi(result_register(), &no_conversion); |
| 4120 | __ mov(a0, result_register()); |
| 4121 | ToNumberStub convert_stub; |
| 4122 | __ CallStub(&convert_stub); |
| 4123 | __ bind(&no_conversion); |
| 4124 | context()->Plug(result_register()); |
| 4125 | break; |
| 4126 | } |
| 4127 | |
| 4128 | case Token::SUB: |
| 4129 | EmitUnaryOperation(expr, "[ UnaryOperation (SUB)"); |
| 4130 | break; |
| 4131 | |
| 4132 | case Token::BIT_NOT: |
| 4133 | EmitUnaryOperation(expr, "[ UnaryOperation (BIT_NOT)"); |
| 4134 | break; |
| 4135 | |
| 4136 | default: |
| 4137 | UNREACHABLE(); |
| 4138 | } |
| 4139 | } |
| 4140 | |
| 4141 | |
| 4142 | void FullCodeGenerator::EmitUnaryOperation(UnaryOperation* expr, |
| 4143 | const char* comment) { |
| 4144 | // TODO(svenpanne): Allowing format strings in Comment would be nice here... |
| 4145 | Comment cmt(masm_, comment); |
| 4146 | bool can_overwrite = expr->expression()->ResultOverwriteAllowed(); |
| 4147 | UnaryOverwriteMode overwrite = |
| 4148 | can_overwrite ? UNARY_OVERWRITE : UNARY_NO_OVERWRITE; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4149 | UnaryOpStub stub(expr->op(), overwrite); |
| 4150 | // GenericUnaryOpStub expects the argument to be in a0. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4151 | VisitForAccumulatorValue(expr->expression()); |
| 4152 | SetSourcePosition(expr->position()); |
| 4153 | __ mov(a0, result_register()); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 4154 | CallIC(stub.GetCode(), RelocInfo::CODE_TARGET, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4155 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4156 | } |
| 4157 | |
| 4158 | |
| 4159 | void FullCodeGenerator::VisitCountOperation(CountOperation* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4160 | Comment cmnt(masm_, "[ CountOperation"); |
| 4161 | SetSourcePosition(expr->position()); |
| 4162 | |
| 4163 | // Invalid left-hand sides are rewritten to have a 'throw ReferenceError' |
| 4164 | // as the left-hand side. |
| 4165 | if (!expr->expression()->IsValidLeftHandSide()) { |
| 4166 | VisitForEffect(expr->expression()); |
| 4167 | return; |
| 4168 | } |
| 4169 | |
| 4170 | // Expression can only be a property, a global or a (parameter or local) |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 4171 | // slot. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4172 | enum LhsKind { VARIABLE, NAMED_PROPERTY, KEYED_PROPERTY }; |
| 4173 | LhsKind assign_type = VARIABLE; |
| 4174 | Property* prop = expr->expression()->AsProperty(); |
| 4175 | // In case of a property we use the uninitialized expression context |
| 4176 | // of the key to detect a named property. |
| 4177 | if (prop != NULL) { |
| 4178 | assign_type = |
| 4179 | (prop->key()->IsPropertyName()) ? NAMED_PROPERTY : KEYED_PROPERTY; |
| 4180 | } |
| 4181 | |
| 4182 | // Evaluate expression and get value. |
| 4183 | if (assign_type == VARIABLE) { |
| 4184 | ASSERT(expr->expression()->AsVariableProxy()->var() != NULL); |
| 4185 | AccumulatorValueContext context(this); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 4186 | EmitVariableLoad(expr->expression()->AsVariableProxy()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4187 | } else { |
| 4188 | // Reserve space for result of postfix operation. |
| 4189 | if (expr->is_postfix() && !context()->IsEffect()) { |
| 4190 | __ li(at, Operand(Smi::FromInt(0))); |
| 4191 | __ push(at); |
| 4192 | } |
| 4193 | if (assign_type == NAMED_PROPERTY) { |
| 4194 | // Put the object both on the stack and in the accumulator. |
| 4195 | VisitForAccumulatorValue(prop->obj()); |
| 4196 | __ push(v0); |
| 4197 | EmitNamedPropertyLoad(prop); |
| 4198 | } else { |
lrn@chromium.org | ac2828d | 2011-06-23 06:29:21 +0000 | [diff] [blame] | 4199 | VisitForStackValue(prop->obj()); |
| 4200 | VisitForAccumulatorValue(prop->key()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4201 | __ lw(a1, MemOperand(sp, 0)); |
| 4202 | __ push(v0); |
| 4203 | EmitKeyedPropertyLoad(prop); |
| 4204 | } |
| 4205 | } |
| 4206 | |
| 4207 | // We need a second deoptimization point after loading the value |
| 4208 | // in case evaluating the property load my have a side effect. |
| 4209 | if (assign_type == VARIABLE) { |
| 4210 | PrepareForBailout(expr->expression(), TOS_REG); |
| 4211 | } else { |
| 4212 | PrepareForBailoutForId(expr->CountId(), TOS_REG); |
| 4213 | } |
| 4214 | |
| 4215 | // Call ToNumber only if operand is not a smi. |
| 4216 | Label no_conversion; |
| 4217 | __ JumpIfSmi(v0, &no_conversion); |
| 4218 | __ mov(a0, v0); |
| 4219 | ToNumberStub convert_stub; |
| 4220 | __ CallStub(&convert_stub); |
| 4221 | __ bind(&no_conversion); |
| 4222 | |
| 4223 | // Save result for postfix expressions. |
| 4224 | if (expr->is_postfix()) { |
| 4225 | if (!context()->IsEffect()) { |
| 4226 | // Save the result on the stack. If we have a named or keyed property |
| 4227 | // we store the result under the receiver that is currently on top |
| 4228 | // of the stack. |
| 4229 | switch (assign_type) { |
| 4230 | case VARIABLE: |
| 4231 | __ push(v0); |
| 4232 | break; |
| 4233 | case NAMED_PROPERTY: |
| 4234 | __ sw(v0, MemOperand(sp, kPointerSize)); |
| 4235 | break; |
| 4236 | case KEYED_PROPERTY: |
| 4237 | __ sw(v0, MemOperand(sp, 2 * kPointerSize)); |
| 4238 | break; |
| 4239 | } |
| 4240 | } |
| 4241 | } |
| 4242 | __ mov(a0, result_register()); |
| 4243 | |
| 4244 | // Inline smi case if we are in a loop. |
| 4245 | Label stub_call, done; |
| 4246 | JumpPatchSite patch_site(masm_); |
| 4247 | |
| 4248 | int count_value = expr->op() == Token::INC ? 1 : -1; |
| 4249 | __ li(a1, Operand(Smi::FromInt(count_value))); |
| 4250 | |
| 4251 | if (ShouldInlineSmiCase(expr->op())) { |
| 4252 | __ AdduAndCheckForOverflow(v0, a0, a1, t0); |
| 4253 | __ BranchOnOverflow(&stub_call, t0); // Do stub on overflow. |
| 4254 | |
| 4255 | // We could eliminate this smi check if we split the code at |
| 4256 | // the first smi check before calling ToNumber. |
| 4257 | patch_site.EmitJumpIfSmi(v0, &done); |
| 4258 | __ bind(&stub_call); |
| 4259 | } |
| 4260 | |
| 4261 | // Record position before stub call. |
| 4262 | SetSourcePosition(expr->position()); |
| 4263 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4264 | BinaryOpStub stub(Token::ADD, NO_OVERWRITE); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 4265 | CallIC(stub.GetCode(), RelocInfo::CODE_TARGET, expr->CountId()); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 4266 | patch_site.EmitPatchInfo(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4267 | __ bind(&done); |
| 4268 | |
| 4269 | // Store the value returned in v0. |
| 4270 | switch (assign_type) { |
| 4271 | case VARIABLE: |
| 4272 | if (expr->is_postfix()) { |
| 4273 | { EffectContext context(this); |
| 4274 | EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(), |
| 4275 | Token::ASSIGN); |
| 4276 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 4277 | context.Plug(v0); |
| 4278 | } |
| 4279 | // For all contexts except EffectConstant we have the result on |
| 4280 | // top of the stack. |
| 4281 | if (!context()->IsEffect()) { |
| 4282 | context()->PlugTOS(); |
| 4283 | } |
| 4284 | } else { |
| 4285 | EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(), |
| 4286 | Token::ASSIGN); |
| 4287 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 4288 | context()->Plug(v0); |
| 4289 | } |
| 4290 | break; |
| 4291 | case NAMED_PROPERTY: { |
| 4292 | __ mov(a0, result_register()); // Value. |
| 4293 | __ li(a2, Operand(prop->key()->AsLiteral()->handle())); // Name. |
| 4294 | __ pop(a1); // Receiver. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4295 | Handle<Code> ic = is_classic_mode() |
| 4296 | ? isolate()->builtins()->StoreIC_Initialize() |
| 4297 | : isolate()->builtins()->StoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 4298 | CallIC(ic, RelocInfo::CODE_TARGET, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4299 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 4300 | if (expr->is_postfix()) { |
| 4301 | if (!context()->IsEffect()) { |
| 4302 | context()->PlugTOS(); |
| 4303 | } |
| 4304 | } else { |
| 4305 | context()->Plug(v0); |
| 4306 | } |
| 4307 | break; |
| 4308 | } |
| 4309 | case KEYED_PROPERTY: { |
| 4310 | __ mov(a0, result_register()); // Value. |
| 4311 | __ pop(a1); // Key. |
| 4312 | __ pop(a2); // Receiver. |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 4313 | Handle<Code> ic = is_classic_mode() |
| 4314 | ? isolate()->builtins()->KeyedStoreIC_Initialize() |
| 4315 | : isolate()->builtins()->KeyedStoreIC_Initialize_Strict(); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 4316 | CallIC(ic, RelocInfo::CODE_TARGET, expr->id()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4317 | PrepareForBailoutForId(expr->AssignmentId(), TOS_REG); |
| 4318 | if (expr->is_postfix()) { |
| 4319 | if (!context()->IsEffect()) { |
| 4320 | context()->PlugTOS(); |
| 4321 | } |
| 4322 | } else { |
| 4323 | context()->Plug(v0); |
| 4324 | } |
| 4325 | break; |
| 4326 | } |
| 4327 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4328 | } |
| 4329 | |
| 4330 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4331 | void FullCodeGenerator::VisitForTypeofValue(Expression* expr) { |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4332 | ASSERT(!context()->IsEffect()); |
| 4333 | ASSERT(!context()->IsTest()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4334 | VariableProxy* proxy = expr->AsVariableProxy(); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4335 | if (proxy != NULL && proxy->var()->IsUnallocated()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4336 | Comment cmnt(masm_, "Global variable"); |
| 4337 | __ lw(a0, GlobalObjectOperand()); |
| 4338 | __ li(a2, Operand(proxy->name())); |
| 4339 | Handle<Code> ic = isolate()->builtins()->LoadIC_Initialize(); |
| 4340 | // Use a regular load, not a contextual load, to avoid a reference |
| 4341 | // error. |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 4342 | CallIC(ic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4343 | PrepareForBailout(expr, TOS_REG); |
| 4344 | context()->Plug(v0); |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4345 | } else if (proxy != NULL && proxy->var()->IsLookupSlot()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4346 | Label done, slow; |
| 4347 | |
| 4348 | // Generate code for loading from variables potentially shadowed |
| 4349 | // by eval-introduced variables. |
ricow@chromium.org | 55ee807 | 2011-09-08 16:33:10 +0000 | [diff] [blame] | 4350 | EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4351 | |
| 4352 | __ bind(&slow); |
| 4353 | __ li(a0, Operand(proxy->name())); |
| 4354 | __ Push(cp, a0); |
| 4355 | __ CallRuntime(Runtime::kLoadContextSlotNoReferenceError, 2); |
| 4356 | PrepareForBailout(expr, TOS_REG); |
| 4357 | __ bind(&done); |
| 4358 | |
| 4359 | context()->Plug(v0); |
| 4360 | } else { |
| 4361 | // This expression cannot throw a reference error at the top level. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4362 | VisitInDuplicateContext(expr); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4363 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4364 | } |
| 4365 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4366 | void FullCodeGenerator::EmitLiteralCompareTypeof(Expression* expr, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4367 | Expression* sub_expr, |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4368 | Handle<String> check) { |
| 4369 | Label materialize_true, materialize_false; |
| 4370 | Label* if_true = NULL; |
| 4371 | Label* if_false = NULL; |
| 4372 | Label* fall_through = NULL; |
| 4373 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 4374 | &if_true, &if_false, &fall_through); |
| 4375 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4376 | { AccumulatorValueContext context(this); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4377 | VisitForTypeofValue(sub_expr); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4378 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4379 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4380 | |
| 4381 | if (check->Equals(isolate()->heap()->number_symbol())) { |
| 4382 | __ JumpIfSmi(v0, if_true); |
| 4383 | __ lw(v0, FieldMemOperand(v0, HeapObject::kMapOffset)); |
| 4384 | __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); |
| 4385 | Split(eq, v0, Operand(at), if_true, if_false, fall_through); |
| 4386 | } else if (check->Equals(isolate()->heap()->string_symbol())) { |
| 4387 | __ JumpIfSmi(v0, if_false); |
| 4388 | // Check for undetectable objects => false. |
| 4389 | __ GetObjectType(v0, v0, a1); |
| 4390 | __ Branch(if_false, ge, a1, Operand(FIRST_NONSTRING_TYPE)); |
| 4391 | __ lbu(a1, FieldMemOperand(v0, Map::kBitFieldOffset)); |
| 4392 | __ And(a1, a1, Operand(1 << Map::kIsUndetectable)); |
| 4393 | Split(eq, a1, Operand(zero_reg), |
| 4394 | if_true, if_false, fall_through); |
| 4395 | } else if (check->Equals(isolate()->heap()->boolean_symbol())) { |
| 4396 | __ LoadRoot(at, Heap::kTrueValueRootIndex); |
| 4397 | __ Branch(if_true, eq, v0, Operand(at)); |
| 4398 | __ LoadRoot(at, Heap::kFalseValueRootIndex); |
| 4399 | Split(eq, v0, Operand(at), if_true, if_false, fall_through); |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 4400 | } else if (FLAG_harmony_typeof && |
| 4401 | check->Equals(isolate()->heap()->null_symbol())) { |
| 4402 | __ LoadRoot(at, Heap::kNullValueRootIndex); |
| 4403 | Split(eq, v0, Operand(at), if_true, if_false, fall_through); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4404 | } else if (check->Equals(isolate()->heap()->undefined_symbol())) { |
| 4405 | __ LoadRoot(at, Heap::kUndefinedValueRootIndex); |
| 4406 | __ Branch(if_true, eq, v0, Operand(at)); |
| 4407 | __ JumpIfSmi(v0, if_false); |
| 4408 | // Check for undetectable objects => true. |
| 4409 | __ lw(v0, FieldMemOperand(v0, HeapObject::kMapOffset)); |
| 4410 | __ lbu(a1, FieldMemOperand(v0, Map::kBitFieldOffset)); |
| 4411 | __ And(a1, a1, Operand(1 << Map::kIsUndetectable)); |
| 4412 | Split(ne, a1, Operand(zero_reg), if_true, if_false, fall_through); |
| 4413 | } else if (check->Equals(isolate()->heap()->function_symbol())) { |
| 4414 | __ JumpIfSmi(v0, if_false); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4415 | STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
| 4416 | __ GetObjectType(v0, v0, a1); |
| 4417 | __ Branch(if_true, eq, a1, Operand(JS_FUNCTION_TYPE)); |
| 4418 | Split(eq, a1, Operand(JS_FUNCTION_PROXY_TYPE), |
| 4419 | if_true, if_false, fall_through); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4420 | } else if (check->Equals(isolate()->heap()->object_symbol())) { |
| 4421 | __ JumpIfSmi(v0, if_false); |
danno@chromium.org | b645116 | 2011-08-17 14:33:23 +0000 | [diff] [blame] | 4422 | if (!FLAG_harmony_typeof) { |
| 4423 | __ LoadRoot(at, Heap::kNullValueRootIndex); |
| 4424 | __ Branch(if_true, eq, v0, Operand(at)); |
| 4425 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4426 | // Check for JS objects => true. |
| 4427 | __ GetObjectType(v0, v0, a1); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 4428 | __ Branch(if_false, lt, a1, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4429 | __ lbu(a1, FieldMemOperand(v0, Map::kInstanceTypeOffset)); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 4430 | __ Branch(if_false, gt, a1, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4431 | // Check for undetectable objects => false. |
| 4432 | __ lbu(a1, FieldMemOperand(v0, Map::kBitFieldOffset)); |
| 4433 | __ And(a1, a1, Operand(1 << Map::kIsUndetectable)); |
| 4434 | Split(eq, a1, Operand(zero_reg), if_true, if_false, fall_through); |
| 4435 | } else { |
| 4436 | if (if_false != fall_through) __ jmp(if_false); |
| 4437 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4438 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4439 | } |
| 4440 | |
| 4441 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4442 | void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4443 | Comment cmnt(masm_, "[ CompareOperation"); |
| 4444 | SetSourcePosition(expr->position()); |
| 4445 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4446 | // First we try a fast inlined version of the compare when one of |
| 4447 | // the operands is a literal. |
| 4448 | if (TryLiteralCompare(expr)) return; |
| 4449 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4450 | // Always perform the comparison for its control flow. Pack the result |
| 4451 | // into the expression's context after the comparison is performed. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4452 | Label materialize_true, materialize_false; |
| 4453 | Label* if_true = NULL; |
| 4454 | Label* if_false = NULL; |
| 4455 | Label* fall_through = NULL; |
| 4456 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 4457 | &if_true, &if_false, &fall_through); |
| 4458 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 4459 | Token::Value op = expr->op(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4460 | VisitForStackValue(expr->left()); |
| 4461 | switch (op) { |
| 4462 | case Token::IN: |
| 4463 | VisitForStackValue(expr->right()); |
| 4464 | __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4465 | PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4466 | __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
| 4467 | Split(eq, v0, Operand(t0), if_true, if_false, fall_through); |
| 4468 | break; |
| 4469 | |
| 4470 | case Token::INSTANCEOF: { |
| 4471 | VisitForStackValue(expr->right()); |
| 4472 | InstanceofStub stub(InstanceofStub::kNoFlags); |
| 4473 | __ CallStub(&stub); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4474 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4475 | // The stub returns 0 for true. |
| 4476 | Split(eq, v0, Operand(zero_reg), if_true, if_false, fall_through); |
| 4477 | break; |
| 4478 | } |
| 4479 | |
| 4480 | default: { |
| 4481 | VisitForAccumulatorValue(expr->right()); |
| 4482 | Condition cc = eq; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4483 | switch (op) { |
| 4484 | case Token::EQ_STRICT: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4485 | case Token::EQ: |
| 4486 | cc = eq; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4487 | break; |
| 4488 | case Token::LT: |
| 4489 | cc = lt; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4490 | break; |
| 4491 | case Token::GT: |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4492 | cc = gt; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4493 | break; |
| 4494 | case Token::LTE: |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4495 | cc = le; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4496 | break; |
| 4497 | case Token::GTE: |
| 4498 | cc = ge; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4499 | break; |
| 4500 | case Token::IN: |
| 4501 | case Token::INSTANCEOF: |
| 4502 | default: |
| 4503 | UNREACHABLE(); |
| 4504 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 4505 | __ mov(a0, result_register()); |
| 4506 | __ pop(a1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4507 | |
| 4508 | bool inline_smi_code = ShouldInlineSmiCase(op); |
| 4509 | JumpPatchSite patch_site(masm_); |
| 4510 | if (inline_smi_code) { |
| 4511 | Label slow_case; |
| 4512 | __ Or(a2, a0, Operand(a1)); |
| 4513 | patch_site.EmitJumpIfNotSmi(a2, &slow_case); |
| 4514 | Split(cc, a1, Operand(a0), if_true, if_false, NULL); |
| 4515 | __ bind(&slow_case); |
| 4516 | } |
| 4517 | // Record position and call the compare IC. |
| 4518 | SetSourcePosition(expr->position()); |
| 4519 | Handle<Code> ic = CompareIC::GetUninitialized(op); |
jkummerow@chromium.org | 1456e70 | 2012-03-30 08:38:13 +0000 | [diff] [blame] | 4520 | CallIC(ic, RelocInfo::CODE_TARGET, expr->id()); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 4521 | patch_site.EmitPatchInfo(); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4522 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4523 | Split(cc, v0, Operand(zero_reg), if_true, if_false, fall_through); |
| 4524 | } |
| 4525 | } |
| 4526 | |
| 4527 | // Convert the result of the comparison into one expected for this |
| 4528 | // expression's context. |
| 4529 | context()->Plug(if_true, if_false); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4530 | } |
| 4531 | |
| 4532 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4533 | void FullCodeGenerator::EmitLiteralCompareNil(CompareOperation* expr, |
| 4534 | Expression* sub_expr, |
| 4535 | NilValue nil) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4536 | Label materialize_true, materialize_false; |
| 4537 | Label* if_true = NULL; |
| 4538 | Label* if_false = NULL; |
| 4539 | Label* fall_through = NULL; |
| 4540 | context()->PrepareTest(&materialize_true, &materialize_false, |
| 4541 | &if_true, &if_false, &fall_through); |
| 4542 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4543 | VisitForAccumulatorValue(sub_expr); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4544 | PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4545 | Heap::RootListIndex nil_value = nil == kNullValue ? |
| 4546 | Heap::kNullValueRootIndex : |
| 4547 | Heap::kUndefinedValueRootIndex; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4548 | __ mov(a0, result_register()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4549 | __ LoadRoot(a1, nil_value); |
| 4550 | if (expr->op() == Token::EQ_STRICT) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4551 | Split(eq, a0, Operand(a1), if_true, if_false, fall_through); |
| 4552 | } else { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4553 | Heap::RootListIndex other_nil_value = nil == kNullValue ? |
| 4554 | Heap::kUndefinedValueRootIndex : |
| 4555 | Heap::kNullValueRootIndex; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4556 | __ Branch(if_true, eq, a0, Operand(a1)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4557 | __ LoadRoot(a1, other_nil_value); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4558 | __ Branch(if_true, eq, a0, Operand(a1)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4559 | __ JumpIfSmi(a0, if_false); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4560 | // It can be an undetectable object. |
| 4561 | __ lw(a1, FieldMemOperand(a0, HeapObject::kMapOffset)); |
| 4562 | __ lbu(a1, FieldMemOperand(a1, Map::kBitFieldOffset)); |
| 4563 | __ And(a1, a1, Operand(1 << Map::kIsUndetectable)); |
| 4564 | Split(ne, a1, Operand(zero_reg), if_true, if_false, fall_through); |
| 4565 | } |
| 4566 | context()->Plug(if_true, if_false); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4567 | } |
| 4568 | |
| 4569 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4570 | void FullCodeGenerator::VisitThisFunction(ThisFunction* expr) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4571 | __ lw(v0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 4572 | context()->Plug(v0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4573 | } |
| 4574 | |
| 4575 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4576 | Register FullCodeGenerator::result_register() { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4577 | return v0; |
| 4578 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4579 | |
| 4580 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4581 | Register FullCodeGenerator::context_register() { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4582 | return cp; |
| 4583 | } |
| 4584 | |
| 4585 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4586 | void FullCodeGenerator::StoreToFrameField(int frame_offset, Register value) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4587 | ASSERT_EQ(POINTER_SIZE_ALIGN(frame_offset), frame_offset); |
| 4588 | __ sw(value, MemOperand(fp, frame_offset)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4589 | } |
| 4590 | |
| 4591 | |
| 4592 | void FullCodeGenerator::LoadContextField(Register dst, int context_index) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4593 | __ lw(dst, ContextOperand(cp, context_index)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4594 | } |
| 4595 | |
| 4596 | |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 4597 | void FullCodeGenerator::PushFunctionArgumentForContextAllocation() { |
| 4598 | Scope* declaration_scope = scope()->DeclarationScope(); |
svenpanne@chromium.org | fb04633 | 2012-04-19 12:02:44 +0000 | [diff] [blame] | 4599 | if (declaration_scope->is_global_scope() || |
| 4600 | declaration_scope->is_module_scope()) { |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 4601 | // Contexts nested in the global context have a canonical empty function |
| 4602 | // as their closure, not the anonymous closure containing the global |
| 4603 | // code. Pass a smi sentinel and let the runtime look up the empty |
| 4604 | // function. |
| 4605 | __ li(at, Operand(Smi::FromInt(0))); |
| 4606 | } else if (declaration_scope->is_eval_scope()) { |
| 4607 | // Contexts created by a call to eval have the same closure as the |
| 4608 | // context calling eval, not the anonymous closure containing the eval |
| 4609 | // code. Fetch it from the context. |
| 4610 | __ lw(at, ContextOperand(cp, Context::CLOSURE_INDEX)); |
| 4611 | } else { |
| 4612 | ASSERT(declaration_scope->is_function_scope()); |
| 4613 | __ lw(at, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 4614 | } |
| 4615 | __ push(at); |
| 4616 | } |
| 4617 | |
| 4618 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4619 | // ---------------------------------------------------------------------------- |
| 4620 | // Non-local control flow support. |
| 4621 | |
| 4622 | void FullCodeGenerator::EnterFinallyBlock() { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4623 | ASSERT(!result_register().is(a1)); |
| 4624 | // Store result register while executing finally block. |
| 4625 | __ push(result_register()); |
| 4626 | // Cook return address in link register to stack (smi encoded Code* delta). |
| 4627 | __ Subu(a1, ra, Operand(masm_->CodeObject())); |
| 4628 | ASSERT_EQ(1, kSmiTagSize + kSmiShiftSize); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 4629 | STATIC_ASSERT(0 == kSmiTag); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4630 | __ Addu(a1, a1, Operand(a1)); // Convert to smi. |
| 4631 | __ push(a1); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4632 | } |
| 4633 | |
| 4634 | |
| 4635 | void FullCodeGenerator::ExitFinallyBlock() { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4636 | ASSERT(!result_register().is(a1)); |
| 4637 | // Restore result register from stack. |
| 4638 | __ pop(a1); |
| 4639 | // Uncook return address and return. |
| 4640 | __ pop(result_register()); |
| 4641 | ASSERT_EQ(1, kSmiTagSize + kSmiShiftSize); |
| 4642 | __ sra(a1, a1, 1); // Un-smi-tag value. |
| 4643 | __ Addu(at, a1, Operand(masm_->CodeObject())); |
| 4644 | __ Jump(at); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4645 | } |
| 4646 | |
| 4647 | |
| 4648 | #undef __ |
| 4649 | |
jkummerow@chromium.org | 486075a | 2011-09-07 12:44:28 +0000 | [diff] [blame] | 4650 | #define __ ACCESS_MASM(masm()) |
| 4651 | |
| 4652 | FullCodeGenerator::NestedStatement* FullCodeGenerator::TryFinally::Exit( |
| 4653 | int* stack_depth, |
| 4654 | int* context_length) { |
| 4655 | // The macros used here must preserve the result register. |
| 4656 | |
| 4657 | // Because the handler block contains the context of the finally |
| 4658 | // code, we can restore it directly from there for the finally code |
| 4659 | // rather than iteratively unwinding contexts via their previous |
| 4660 | // links. |
| 4661 | __ Drop(*stack_depth); // Down to the handler block. |
| 4662 | if (*context_length > 0) { |
| 4663 | // Restore the context to its dedicated register and the stack. |
| 4664 | __ lw(cp, MemOperand(sp, StackHandlerConstants::kContextOffset)); |
| 4665 | __ sw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 4666 | } |
| 4667 | __ PopTryHandler(); |
| 4668 | __ Call(finally_entry_); |
| 4669 | |
| 4670 | *stack_depth = 0; |
| 4671 | *context_length = 0; |
| 4672 | return previous_; |
| 4673 | } |
| 4674 | |
| 4675 | |
| 4676 | #undef __ |
| 4677 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4678 | } } // namespace v8::internal |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 4679 | |
| 4680 | #endif // V8_TARGET_ARCH_MIPS |