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Issue 1424153003: VectorICs: Remove --vector-stores flag. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Response to Hannes comment. Created 5 years, 1 month ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #if V8_TARGET_ARCH_IA32 5 #if V8_TARGET_ARCH_IA32
6 6
7 #include "src/base/bits.h" 7 #include "src/base/bits.h"
8 #include "src/bootstrapper.h" 8 #include "src/bootstrapper.h"
9 #include "src/code-stubs.h" 9 #include "src/code-stubs.h"
10 #include "src/codegen.h" 10 #include "src/codegen.h"
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4110 4110
4111 __ bind(&need_incremental_pop_object); 4111 __ bind(&need_incremental_pop_object);
4112 __ pop(regs_.object()); 4112 __ pop(regs_.object());
4113 4113
4114 __ bind(&need_incremental); 4114 __ bind(&need_incremental);
4115 4115
4116 // Fall through when we need to inform the incremental marker. 4116 // Fall through when we need to inform the incremental marker.
4117 } 4117 }
4118 4118
4119 4119
4120 void StoreArrayLiteralElementStub::Generate(MacroAssembler* masm) {
4121 // ----------- S t a t e -------------
4122 // -- eax : element value to store
4123 // -- ecx : element index as smi
4124 // -- esp[0] : return address
4125 // -- esp[4] : array literal index in function
4126 // -- esp[8] : array literal
4127 // clobbers ebx, edx, edi
4128 // -----------------------------------
4129
4130 Label element_done;
4131 Label double_elements;
4132 Label smi_element;
4133 Label slow_elements;
4134 Label slow_elements_from_double;
4135 Label fast_elements;
4136
4137 // Get array literal index, array literal and its map.
4138 __ mov(edx, Operand(esp, 1 * kPointerSize));
4139 __ mov(ebx, Operand(esp, 2 * kPointerSize));
4140 __ mov(edi, FieldOperand(ebx, JSObject::kMapOffset));
4141
4142 __ CheckFastElements(edi, &double_elements);
4143
4144 // Check for FAST_*_SMI_ELEMENTS or FAST_*_ELEMENTS elements
4145 __ JumpIfSmi(eax, &smi_element);
4146 __ CheckFastSmiElements(edi, &fast_elements, Label::kNear);
4147
4148 // Store into the array literal requires a elements transition. Call into
4149 // the runtime.
4150
4151 __ bind(&slow_elements);
4152 __ pop(edi); // Pop return address and remember to put back later for tail
4153 // call.
4154 __ push(ebx);
4155 __ push(ecx);
4156 __ push(eax);
4157 __ mov(ebx, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
4158 __ push(FieldOperand(ebx, JSFunction::kLiteralsOffset));
4159 __ push(edx);
4160 __ push(edi); // Return return address so that tail call returns to right
4161 // place.
4162 __ TailCallRuntime(Runtime::kStoreArrayLiteralElement, 5, 1);
4163
4164 __ bind(&slow_elements_from_double);
4165 __ pop(edx);
4166 __ jmp(&slow_elements);
4167
4168 // Array literal has ElementsKind of FAST_*_ELEMENTS and value is an object.
4169 __ bind(&fast_elements);
4170 __ mov(ebx, FieldOperand(ebx, JSObject::kElementsOffset));
4171 __ lea(ecx, FieldOperand(ebx, ecx, times_half_pointer_size,
4172 FixedArrayBase::kHeaderSize));
4173 __ mov(Operand(ecx, 0), eax);
4174 // Update the write barrier for the array store.
4175 __ RecordWrite(ebx, ecx, eax,
4176 kDontSaveFPRegs,
4177 EMIT_REMEMBERED_SET,
4178 OMIT_SMI_CHECK);
4179 __ ret(0);
4180
4181 // Array literal has ElementsKind of FAST_*_SMI_ELEMENTS or FAST_*_ELEMENTS,
4182 // and value is Smi.
4183 __ bind(&smi_element);
4184 __ mov(ebx, FieldOperand(ebx, JSObject::kElementsOffset));
4185 __ mov(FieldOperand(ebx, ecx, times_half_pointer_size,
4186 FixedArrayBase::kHeaderSize), eax);
4187 __ ret(0);
4188
4189 // Array literal has ElementsKind of FAST_*_DOUBLE_ELEMENTS.
4190 __ bind(&double_elements);
4191
4192 __ push(edx);
4193 __ mov(edx, FieldOperand(ebx, JSObject::kElementsOffset));
4194 __ StoreNumberToDoubleElements(eax,
4195 edx,
4196 ecx,
4197 edi,
4198 xmm0,
4199 &slow_elements_from_double);
4200 __ pop(edx);
4201 __ ret(0);
4202 }
4203
4204
4205 void StubFailureTrampolineStub::Generate(MacroAssembler* masm) { 4120 void StubFailureTrampolineStub::Generate(MacroAssembler* masm) {
4206 CEntryStub ces(isolate(), 1, kSaveFPRegs); 4121 CEntryStub ces(isolate(), 1, kSaveFPRegs);
4207 __ call(ces.GetCode(), RelocInfo::CODE_TARGET); 4122 __ call(ces.GetCode(), RelocInfo::CODE_TARGET);
4208 int parameter_count_offset = 4123 int parameter_count_offset =
4209 StubFailureTrampolineFrame::kCallerStackParameterCountFrameOffset; 4124 StubFailureTrampolineFrame::kCallerStackParameterCountFrameOffset;
4210 __ mov(ebx, MemOperand(ebp, parameter_count_offset)); 4125 __ mov(ebx, MemOperand(ebp, parameter_count_offset));
4211 masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE); 4126 masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE);
4212 __ pop(ecx); 4127 __ pop(ecx);
4213 int additional_offset = 4128 int additional_offset =
4214 function_mode() == JS_FUNCTION_STUB_MODE ? kPointerSize : 0; 4129 function_mode() == JS_FUNCTION_STUB_MODE ? kPointerSize : 0;
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5752 Operand(ebp, 7 * kPointerSize), NULL); 5667 Operand(ebp, 7 * kPointerSize), NULL);
5753 } 5668 }
5754 5669
5755 5670
5756 #undef __ 5671 #undef __
5757 5672
5758 } // namespace internal 5673 } // namespace internal
5759 } // namespace v8 5674 } // namespace v8
5760 5675
5761 #endif // V8_TARGET_ARCH_IA32 5676 #endif // V8_TARGET_ARCH_IA32
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