| // Copyright 2010 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "v8.h" |
| |
| #include "disassembler.h" |
| #include "factory.h" |
| #include "arm/simulator-arm.h" |
| #include "arm/assembler-arm-inl.h" |
| #include "cctest.h" |
| |
| using namespace v8::internal; |
| |
| |
| // Define these function prototypes to match JSEntryFunction in execution.cc. |
| typedef Object* (*F1)(int x, int p1, int p2, int p3, int p4); |
| typedef Object* (*F2)(int x, int y, int p2, int p3, int p4); |
| typedef Object* (*F3)(void* p, int p1, int p2, int p3, int p4); |
| |
| |
| static v8::Persistent<v8::Context> env; |
| |
| |
| // The test framework does not accept flags on the command line, so we set them |
| static void InitializeVM() { |
| // enable generation of comments |
| FLAG_debug_code = true; |
| |
| if (env.IsEmpty()) { |
| env = v8::Context::New(); |
| } |
| } |
| |
| |
| #define __ assm. |
| |
| TEST(0) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| Assembler assm(NULL, 0); |
| |
| __ add(r0, r0, Operand(r1)); |
| __ mov(pc, Operand(lr)); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F2 f = FUNCTION_CAST<F2>(Code::cast(code)->entry()); |
| int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 3, 4, 0, 0, 0)); |
| ::printf("f() = %d\n", res); |
| CHECK_EQ(7, res); |
| } |
| |
| |
| TEST(1) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| Assembler assm(NULL, 0); |
| Label L, C; |
| |
| __ mov(r1, Operand(r0)); |
| __ mov(r0, Operand(0, RelocInfo::NONE)); |
| __ b(&C); |
| |
| __ bind(&L); |
| __ add(r0, r0, Operand(r1)); |
| __ sub(r1, r1, Operand(1)); |
| |
| __ bind(&C); |
| __ teq(r1, Operand(0, RelocInfo::NONE)); |
| __ b(ne, &L); |
| __ mov(pc, Operand(lr)); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry()); |
| int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 100, 0, 0, 0, 0)); |
| ::printf("f() = %d\n", res); |
| CHECK_EQ(5050, res); |
| } |
| |
| |
| TEST(2) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| Assembler assm(NULL, 0); |
| Label L, C; |
| |
| __ mov(r1, Operand(r0)); |
| __ mov(r0, Operand(1)); |
| __ b(&C); |
| |
| __ bind(&L); |
| __ mul(r0, r1, r0); |
| __ sub(r1, r1, Operand(1)); |
| |
| __ bind(&C); |
| __ teq(r1, Operand(0, RelocInfo::NONE)); |
| __ b(ne, &L); |
| __ mov(pc, Operand(lr)); |
| |
| // some relocated stuff here, not executed |
| __ RecordComment("dead code, just testing relocations"); |
| __ mov(r0, Operand(Factory::true_value())); |
| __ RecordComment("dead code, just testing immediate operands"); |
| __ mov(r0, Operand(-1)); |
| __ mov(r0, Operand(0xFF000000)); |
| __ mov(r0, Operand(0xF0F0F0F0)); |
| __ mov(r0, Operand(0xFFF0FFFF)); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry()); |
| int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, 10, 0, 0, 0, 0)); |
| ::printf("f() = %d\n", res); |
| CHECK_EQ(3628800, res); |
| } |
| |
| |
| TEST(3) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| typedef struct { |
| int i; |
| char c; |
| int16_t s; |
| } T; |
| T t; |
| |
| Assembler assm(NULL, 0); |
| Label L, C; |
| |
| __ mov(ip, Operand(sp)); |
| __ stm(db_w, sp, r4.bit() | fp.bit() | lr.bit()); |
| __ sub(fp, ip, Operand(4)); |
| __ mov(r4, Operand(r0)); |
| __ ldr(r0, MemOperand(r4, OFFSET_OF(T, i))); |
| __ mov(r2, Operand(r0, ASR, 1)); |
| __ str(r2, MemOperand(r4, OFFSET_OF(T, i))); |
| __ ldrsb(r2, MemOperand(r4, OFFSET_OF(T, c))); |
| __ add(r0, r2, Operand(r0)); |
| __ mov(r2, Operand(r2, LSL, 2)); |
| __ strb(r2, MemOperand(r4, OFFSET_OF(T, c))); |
| __ ldrsh(r2, MemOperand(r4, OFFSET_OF(T, s))); |
| __ add(r0, r2, Operand(r0)); |
| __ mov(r2, Operand(r2, ASR, 3)); |
| __ strh(r2, MemOperand(r4, OFFSET_OF(T, s))); |
| __ ldm(ia_w, sp, r4.bit() | fp.bit() | pc.bit()); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F3 f = FUNCTION_CAST<F3>(Code::cast(code)->entry()); |
| t.i = 100000; |
| t.c = 10; |
| t.s = 1000; |
| int res = reinterpret_cast<int>(CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0)); |
| ::printf("f() = %d\n", res); |
| CHECK_EQ(101010, res); |
| CHECK_EQ(100000/2, t.i); |
| CHECK_EQ(10*4, t.c); |
| CHECK_EQ(1000/8, t.s); |
| } |
| |
| |
| TEST(4) { |
| // Test the VFP floating point instructions. |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| typedef struct { |
| double a; |
| double b; |
| double c; |
| double d; |
| double e; |
| double f; |
| int i; |
| float x; |
| float y; |
| } T; |
| T t; |
| |
| // Create a function that accepts &t, and loads, manipulates, and stores |
| // the doubles and floats. |
| Assembler assm(NULL, 0); |
| Label L, C; |
| |
| |
| if (CpuFeatures::IsSupported(VFP3)) { |
| CpuFeatures::Scope scope(VFP3); |
| |
| __ mov(ip, Operand(sp)); |
| __ stm(db_w, sp, r4.bit() | fp.bit() | lr.bit()); |
| __ sub(fp, ip, Operand(4)); |
| |
| __ mov(r4, Operand(r0)); |
| __ vldr(d6, r4, OFFSET_OF(T, a)); |
| __ vldr(d7, r4, OFFSET_OF(T, b)); |
| __ vadd(d5, d6, d7); |
| __ vstr(d5, r4, OFFSET_OF(T, c)); |
| |
| __ vmov(r2, r3, d5); |
| __ vmov(d4, r2, r3); |
| __ vstr(d4, r4, OFFSET_OF(T, b)); |
| |
| // Load t.x and t.y, switch values, and store back to the struct. |
| __ vldr(s0, r4, OFFSET_OF(T, x)); |
| __ vldr(s31, r4, OFFSET_OF(T, y)); |
| __ vmov(s16, s0); |
| __ vmov(s0, s31); |
| __ vmov(s31, s16); |
| __ vstr(s0, r4, OFFSET_OF(T, x)); |
| __ vstr(s31, r4, OFFSET_OF(T, y)); |
| |
| // Move a literal into a register that can be encoded in the instruction. |
| __ vmov(d4, 1.0); |
| __ vstr(d4, r4, OFFSET_OF(T, e)); |
| |
| // Move a literal into a register that requires 64 bits to encode. |
| // 0x3ff0000010000000 = 1.000000059604644775390625 |
| __ vmov(d4, 1.000000059604644775390625); |
| __ vstr(d4, r4, OFFSET_OF(T, d)); |
| |
| // Convert from floating point to integer. |
| __ vmov(d4, 2.0); |
| __ vcvt_s32_f64(s31, d4); |
| __ vstr(s31, r4, OFFSET_OF(T, i)); |
| |
| // Convert from integer to floating point. |
| __ mov(lr, Operand(42)); |
| __ vmov(s31, lr); |
| __ vcvt_f64_s32(d4, s31); |
| __ vstr(d4, r4, OFFSET_OF(T, f)); |
| __ ldm(ia_w, sp, r4.bit() | fp.bit() | pc.bit()); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F3 f = FUNCTION_CAST<F3>(Code::cast(code)->entry()); |
| t.a = 1.5; |
| t.b = 2.75; |
| t.c = 17.17; |
| t.d = 0.0; |
| t.e = 0.0; |
| t.f = 0.0; |
| t.i = 0; |
| t.x = 4.5; |
| t.y = 9.0; |
| Object* dummy = CALL_GENERATED_CODE(f, &t, 0, 0, 0, 0); |
| USE(dummy); |
| CHECK_EQ(4.5, t.y); |
| CHECK_EQ(9.0, t.x); |
| CHECK_EQ(2, t.i); |
| CHECK_EQ(42.0, t.f); |
| CHECK_EQ(1.0, t.e); |
| CHECK_EQ(1.000000059604644775390625, t.d); |
| CHECK_EQ(4.25, t.c); |
| CHECK_EQ(4.25, t.b); |
| CHECK_EQ(1.5, t.a); |
| } |
| } |
| |
| |
| TEST(5) { |
| // Test the ARMv7 bitfield instructions. |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| Assembler assm(NULL, 0); |
| |
| if (CpuFeatures::IsSupported(ARMv7)) { |
| CpuFeatures::Scope scope(ARMv7); |
| // On entry, r0 = 0xAAAAAAAA = 0b10..10101010. |
| __ ubfx(r0, r0, 1, 12); // 0b00..010101010101 = 0x555 |
| __ sbfx(r0, r0, 0, 5); // 0b11..111111110101 = -11 |
| __ bfc(r0, 1, 3); // 0b11..111111110001 = -15 |
| __ mov(r1, Operand(7)); |
| __ bfi(r0, r1, 3, 3); // 0b11..111111111001 = -7 |
| __ mov(pc, Operand(lr)); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry()); |
| int res = reinterpret_cast<int>( |
| CALL_GENERATED_CODE(f, 0xAAAAAAAA, 0, 0, 0, 0)); |
| ::printf("f() = %d\n", res); |
| CHECK_EQ(-7, res); |
| } |
| } |
| |
| |
| TEST(6) { |
| // Test saturating instructions. |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| Assembler assm(NULL, 0); |
| |
| if (CpuFeatures::IsSupported(ARMv7)) { |
| CpuFeatures::Scope scope(ARMv7); |
| __ usat(r1, 8, Operand(r0)); // Sat 0xFFFF to 0-255 = 0xFF. |
| __ usat(r2, 12, Operand(r0, ASR, 9)); // Sat (0xFFFF>>9) to 0-4095 = 0x7F. |
| __ usat(r3, 1, Operand(r0, LSL, 16)); // Sat (0xFFFF<<16) to 0-1 = 0x0. |
| __ add(r0, r1, Operand(r2)); |
| __ add(r0, r0, Operand(r3)); |
| __ mov(pc, Operand(lr)); |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode( |
| desc, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value()))->ToObjectChecked(); |
| CHECK(code->IsCode()); |
| #ifdef DEBUG |
| Code::cast(code)->Print(); |
| #endif |
| F1 f = FUNCTION_CAST<F1>(Code::cast(code)->entry()); |
| int res = reinterpret_cast<int>( |
| CALL_GENERATED_CODE(f, 0xFFFF, 0, 0, 0, 0)); |
| ::printf("f() = %d\n", res); |
| CHECK_EQ(382, res); |
| } |
| } |
| |
| #undef __ |