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Issue 288383002: Allow comparison in UINT32 mode. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 7 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 "v8.h" 5 #include "v8.h"
6 6
7 #include "arm/lithium-codegen-arm.h" 7 #include "arm/lithium-codegen-arm.h"
8 #include "arm/lithium-gap-resolver-arm.h" 8 #include "arm/lithium-gap-resolver-arm.h"
9 #include "code-stubs.h" 9 #include "code-stubs.h"
10 #include "stub-cache.h" 10 #include "stub-cache.h"
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2361 default: 2361 default:
2362 UNREACHABLE(); 2362 UNREACHABLE();
2363 } 2363 }
2364 return cond; 2364 return cond;
2365 } 2365 }
2366 2366
2367 2367
2368 void LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) { 2368 void LCodeGen::DoCompareNumericAndBranch(LCompareNumericAndBranch* instr) {
2369 LOperand* left = instr->left(); 2369 LOperand* left = instr->left();
2370 LOperand* right = instr->right(); 2370 LOperand* right = instr->right();
2371 Condition cond = TokenToCondition(instr->op(), false); 2371 bool is_unsigned = instr->hydrogen()->CheckFlag(HInstruction::kUint32);
2372 Condition cond = TokenToCondition(instr->op(), is_unsigned);
2372 2373
2373 if (left->IsConstantOperand() && right->IsConstantOperand()) { 2374 if (left->IsConstantOperand() && right->IsConstantOperand()) {
2374 // We can statically evaluate the comparison. 2375 // We can statically evaluate the comparison.
2375 double left_val = ToDouble(LConstantOperand::cast(left)); 2376 double left_val = ToDouble(LConstantOperand::cast(left));
2376 double right_val = ToDouble(LConstantOperand::cast(right)); 2377 double right_val = ToDouble(LConstantOperand::cast(right));
2377 int next_block = EvalComparison(instr->op(), left_val, right_val) ? 2378 int next_block = EvalComparison(instr->op(), left_val, right_val) ?
2378 instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_); 2379 instr->TrueDestination(chunk_) : instr->FalseDestination(chunk_);
2379 EmitGoto(next_block); 2380 EmitGoto(next_block);
2380 } else { 2381 } else {
2381 if (instr->is_double()) { 2382 if (instr->is_double()) {
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5862 __ ldr(result, FieldMemOperand(scratch, 5863 __ ldr(result, FieldMemOperand(scratch,
5863 FixedArray::kHeaderSize - kPointerSize)); 5864 FixedArray::kHeaderSize - kPointerSize));
5864 __ bind(deferred->exit()); 5865 __ bind(deferred->exit());
5865 __ bind(&done); 5866 __ bind(&done);
5866 } 5867 }
5867 5868
5868 5869
5869 #undef __ 5870 #undef __
5870 5871
5871 } } // namespace v8::internal 5872 } } // namespace v8::internal
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