Version 2.2.3
Added stack command and mem command to ARM simulator debugger.
Fixed scons snapshot and ARM build, and Windows X64 build issues.
Performance improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@4410 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index 92dcdd1..0fc7b6d 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -4021,6 +4021,100 @@
}
+void CodeGenerator::GenerateRegExpConstructResult(ZoneList<Expression*>* args) {
+ // No stub. This code only occurs a few times in regexp.js.
+ const int kMaxInlineLength = 100;
+ ASSERT_EQ(3, args->length());
+ Load(args->at(0)); // Size of array, smi.
+ Load(args->at(1)); // "index" property value.
+ Load(args->at(2)); // "input" property value.
+ {
+ VirtualFrame::SpilledScope spilled_scope(frame_);
+ Label slowcase;
+ Label done;
+ __ ldr(r1, MemOperand(sp, kPointerSize * 2));
+ STATIC_ASSERT(kSmiTag == 0);
+ STATIC_ASSERT(kSmiTagSize == 1);
+ __ tst(r1, Operand(kSmiTagMask));
+ __ b(ne, &slowcase);
+ __ cmp(r1, Operand(Smi::FromInt(kMaxInlineLength)));
+ __ b(hi, &slowcase);
+ // Smi-tagging is equivalent to multiplying by 2.
+ // Allocate RegExpResult followed by FixedArray with size in ebx.
+ // JSArray: [Map][empty properties][Elements][Length-smi][index][input]
+ // Elements: [Map][Length][..elements..]
+ // Size of JSArray with two in-object properties and the header of a
+ // FixedArray.
+ int objects_size =
+ (JSRegExpResult::kSize + FixedArray::kHeaderSize) / kPointerSize;
+ __ mov(r5, Operand(r1, LSR, kSmiTagSize + kSmiShiftSize));
+ __ add(r2, r5, Operand(objects_size));
+ __ AllocateInNewSpace(r2, // In: Size, in words.
+ r0, // Out: Start of allocation (tagged).
+ r3, // Scratch register.
+ r4, // Scratch register.
+ &slowcase,
+ TAG_OBJECT);
+ // r0: Start of allocated area, object-tagged.
+ // r1: Number of elements in array, as smi.
+ // r5: Number of elements, untagged.
+
+ // Set JSArray map to global.regexp_result_map().
+ // Set empty properties FixedArray.
+ // Set elements to point to FixedArray allocated right after the JSArray.
+ // Interleave operations for better latency.
+ __ ldr(r2, ContextOperand(cp, Context::GLOBAL_INDEX));
+ __ add(r3, r0, Operand(JSRegExpResult::kSize));
+ __ mov(r4, Operand(Factory::empty_fixed_array()));
+ __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalContextOffset));
+ __ str(r3, FieldMemOperand(r0, JSObject::kElementsOffset));
+ __ ldr(r2, ContextOperand(r2, Context::REGEXP_RESULT_MAP_INDEX));
+ __ str(r4, FieldMemOperand(r0, JSObject::kPropertiesOffset));
+ __ str(r2, FieldMemOperand(r0, HeapObject::kMapOffset));
+
+ // Set input, index and length fields from arguments.
+ __ ldm(ia_w, sp, static_cast<RegList>(r2.bit() | r4.bit()));
+ __ str(r1, FieldMemOperand(r0, JSArray::kLengthOffset));
+ __ add(sp, sp, Operand(kPointerSize));
+ __ str(r4, FieldMemOperand(r0, JSRegExpResult::kIndexOffset));
+ __ str(r2, FieldMemOperand(r0, JSRegExpResult::kInputOffset));
+
+ // Fill out the elements FixedArray.
+ // r0: JSArray, tagged.
+ // r3: FixedArray, tagged.
+ // r5: Number of elements in array, untagged.
+
+ // Set map.
+ __ mov(r2, Operand(Factory::fixed_array_map()));
+ __ str(r2, FieldMemOperand(r3, HeapObject::kMapOffset));
+ // Set FixedArray length.
+ __ str(r5, FieldMemOperand(r3, FixedArray::kLengthOffset));
+ // Fill contents of fixed-array with the-hole.
+ __ mov(r2, Operand(Factory::the_hole_value()));
+ __ add(r3, r3, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+ // Fill fixed array elements with hole.
+ // r0: JSArray, tagged.
+ // r2: the hole.
+ // r3: Start of elements in FixedArray.
+ // r5: Number of elements to fill.
+ Label loop;
+ __ tst(r5, Operand(r5));
+ __ bind(&loop);
+ __ b(le, &done); // Jump if r1 is negative or zero.
+ __ sub(r5, r5, Operand(1), SetCC);
+ __ str(r2, MemOperand(r3, r5, LSL, kPointerSizeLog2));
+ __ jmp(&loop);
+
+ __ bind(&slowcase);
+ __ CallRuntime(Runtime::kRegExpConstructResult, 3);
+
+ __ bind(&done);
+ }
+ frame_->Forget(3);
+ frame_->EmitPush(r0);
+}
+
+
void CodeGenerator::GenerateNumberToString(ZoneList<Expression*>* args) {
ASSERT_EQ(args->length(), 1);