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Issue 1925463003: [turbofan] Don't use the CompareIC in JSGenericLowering. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@5.0
Patch Set: Created 4 years, 7 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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_ARM64 5 #if V8_TARGET_ARCH_ARM64
6 6
7 #include "src/bootstrapper.h" 7 #include "src/bootstrapper.h"
8 #include "src/code-stubs.h" 8 #include "src/code-stubs.h"
9 #include "src/codegen.h" 9 #include "src/codegen.h"
10 #include "src/ic/handler-compiler.h" 10 #include "src/ic/handler-compiler.h"
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621 x12, x13); 621 x12, x13);
622 } 622 }
623 623
624 // Never fall through to here. 624 // Never fall through to here.
625 if (FLAG_debug_code) { 625 if (FLAG_debug_code) {
626 __ Unreachable(); 626 __ Unreachable();
627 } 627 }
628 628
629 __ Bind(&slow); 629 __ Bind(&slow);
630 630
631 __ Push(lhs, rhs);
632 // Figure out which native to call and setup the arguments.
633 if (cond == eq) { 631 if (cond == eq) {
634 __ TailCallRuntime(strict() ? Runtime::kStrictEquals : Runtime::kEquals); 632 {
633 FrameScope scope(masm, StackFrame::INTERNAL);
634 __ Push(lhs, rhs);
635 __ CallRuntime(strict() ? Runtime::kStrictEqual : Runtime::kEqual);
636 }
637 // Turn true into 0 and false into some non-zero value.
638 STATIC_ASSERT(EQUAL == 0);
639 __ LoadRoot(x1, Heap::kTrueValueRootIndex);
640 __ Sub(x0, x0, x1);
641 __ Ret();
635 } else { 642 } else {
643 __ Push(lhs, rhs);
636 int ncr; // NaN compare result 644 int ncr; // NaN compare result
637 if ((cond == lt) || (cond == le)) { 645 if ((cond == lt) || (cond == le)) {
638 ncr = GREATER; 646 ncr = GREATER;
639 } else { 647 } else {
640 DCHECK((cond == gt) || (cond == ge)); // remaining cases 648 DCHECK((cond == gt) || (cond == ge)); // remaining cases
641 ncr = LESS; 649 ncr = LESS;
642 } 650 }
643 __ Mov(x10, Smi::FromInt(ncr)); 651 __ Mov(x10, Smi::FromInt(ncr));
644 __ Push(x10); 652 __ Push(x10);
645 653
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5995 return_value_operand, NULL); 6003 return_value_operand, NULL);
5996 } 6004 }
5997 6005
5998 6006
5999 #undef __ 6007 #undef __
6000 6008
6001 } // namespace internal 6009 } // namespace internal
6002 } // namespace v8 6010 } // namespace v8
6003 6011
6004 #endif // V8_TARGET_ARCH_ARM64 6012 #endif // V8_TARGET_ARCH_ARM64
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