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Issue 2304573004: Port FastCloneShallowArrayStub to Turbofan (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: break live range of allocation_site so instruction selection uses nice addressing modes Created 4 years, 3 months 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_MIPS 5 #if V8_TARGET_ARCH_MIPS
6 6
7 // Note on Mips implementation: 7 // Note on Mips implementation:
8 // 8 //
9 // The result_register() for mips is the 'v0' register, which is defined 9 // The result_register() for mips is the 'v0' register, which is defined
10 // by the ABI to contain function return values. However, the first 10 // by the ABI to contain function return values. However, the first
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1585 __ lw(a3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); 1585 __ lw(a3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
1586 __ li(a2, Operand(Smi::FromInt(expr->literal_index()))); 1586 __ li(a2, Operand(Smi::FromInt(expr->literal_index())));
1587 __ li(a1, Operand(constant_elements)); 1587 __ li(a1, Operand(constant_elements));
1588 if (MustCreateArrayLiteralWithRuntime(expr)) { 1588 if (MustCreateArrayLiteralWithRuntime(expr)) {
1589 __ li(a0, Operand(Smi::FromInt(expr->ComputeFlags()))); 1589 __ li(a0, Operand(Smi::FromInt(expr->ComputeFlags())));
1590 __ Push(a3, a2, a1, a0); 1590 __ Push(a3, a2, a1, a0);
1591 __ CallRuntime(Runtime::kCreateArrayLiteral); 1591 __ CallRuntime(Runtime::kCreateArrayLiteral);
1592 } else { 1592 } else {
1593 FastCloneShallowArrayStub stub(isolate(), allocation_site_mode); 1593 FastCloneShallowArrayStub stub(isolate(), allocation_site_mode);
1594 __ CallStub(&stub); 1594 __ CallStub(&stub);
1595 RestoreContext();
1595 } 1596 }
1596 PrepareForBailoutForId(expr->CreateLiteralId(), BailoutState::TOS_REGISTER); 1597 PrepareForBailoutForId(expr->CreateLiteralId(), BailoutState::TOS_REGISTER);
1597 1598
1598 bool result_saved = false; // Is the result saved to the stack? 1599 bool result_saved = false; // Is the result saved to the stack?
1599 ZoneList<Expression*>* subexprs = expr->values(); 1600 ZoneList<Expression*>* subexprs = expr->values();
1600 int length = subexprs->length(); 1601 int length = subexprs->length();
1601 1602
1602 // Emit code to evaluate all the non-constant subexpressions and to store 1603 // Emit code to evaluate all the non-constant subexpressions and to store
1603 // them into the newly cloned array. 1604 // them into the newly cloned array.
1604 for (int array_index = 0; array_index < length; array_index++) { 1605 for (int array_index = 0; array_index < length; array_index++) {
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3731 reinterpret_cast<uint32_t>( 3732 reinterpret_cast<uint32_t>(
3732 isolate->builtins()->OnStackReplacement()->entry())); 3733 isolate->builtins()->OnStackReplacement()->entry()));
3733 return ON_STACK_REPLACEMENT; 3734 return ON_STACK_REPLACEMENT;
3734 } 3735 }
3735 3736
3736 3737
3737 } // namespace internal 3738 } // namespace internal
3738 } // namespace v8 3739 } // namespace v8
3739 3740
3740 #endif // V8_TARGET_ARCH_MIPS 3741 #endif // V8_TARGET_ARCH_MIPS
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