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Issue 841443004: [turbofan] Allow deoptimization for JSToNumber operator. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebase Created 5 years, 11 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 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_MIPS64 7 #if V8_TARGET_ARCH_MIPS64
8 8
9 // Note on Mips implementation: 9 // Note on Mips implementation:
10 // 10 //
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4674 __ li(scratch1, Operand(Smi::FromInt(count_value))); 4674 __ li(scratch1, Operand(Smi::FromInt(count_value)));
4675 __ AdduAndCheckForOverflow(v0, v0, scratch1, scratch2); 4675 __ AdduAndCheckForOverflow(v0, v0, scratch1, scratch2);
4676 __ BranchOnNoOverflow(&done, scratch2); 4676 __ BranchOnNoOverflow(&done, scratch2);
4677 // Call stub. Undo operation first. 4677 // Call stub. Undo operation first.
4678 __ Move(v0, a0); 4678 __ Move(v0, a0);
4679 __ jmp(&stub_call); 4679 __ jmp(&stub_call);
4680 __ bind(&slow); 4680 __ bind(&slow);
4681 } 4681 }
4682 ToNumberStub convert_stub(isolate()); 4682 ToNumberStub convert_stub(isolate());
4683 __ CallStub(&convert_stub); 4683 __ CallStub(&convert_stub);
4684 PrepareForBailoutForId(expr->ToNumberId(), TOS_REG);
4684 4685
4685 // Save result for postfix expressions. 4686 // Save result for postfix expressions.
4686 if (expr->is_postfix()) { 4687 if (expr->is_postfix()) {
4687 if (!context()->IsEffect()) { 4688 if (!context()->IsEffect()) {
4688 // Save the result on the stack. If we have a named or keyed property 4689 // Save the result on the stack. If we have a named or keyed property
4689 // we store the result under the receiver that is currently on top 4690 // we store the result under the receiver that is currently on top
4690 // of the stack. 4691 // of the stack.
4691 switch (assign_type) { 4692 switch (assign_type) {
4692 case VARIABLE: 4693 case VARIABLE:
4693 __ push(v0); 4694 __ push(v0);
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5241 Assembler::target_address_at(pc_immediate_load_address)) == 5242 Assembler::target_address_at(pc_immediate_load_address)) ==
5242 reinterpret_cast<uint64_t>( 5243 reinterpret_cast<uint64_t>(
5243 isolate->builtins()->OsrAfterStackCheck()->entry())); 5244 isolate->builtins()->OsrAfterStackCheck()->entry()));
5244 return OSR_AFTER_STACK_CHECK; 5245 return OSR_AFTER_STACK_CHECK;
5245 } 5246 }
5246 5247
5247 5248
5248 } } // namespace v8::internal 5249 } } // namespace v8::internal
5249 5250
5250 #endif // V8_TARGET_ARCH_MIPS64 5251 #endif // V8_TARGET_ARCH_MIPS64
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