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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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555 } else { | 555 } else { |
556 if (false_label_ != fall_through_) __ b(false_label_); | 556 if (false_label_ != fall_through_) __ b(false_label_); |
557 } | 557 } |
558 } | 558 } |
559 | 559 |
560 | 560 |
561 void FullCodeGenerator::DoTest(Label* if_true, | 561 void FullCodeGenerator::DoTest(Label* if_true, |
562 Label* if_false, | 562 Label* if_false, |
563 Label* fall_through) { | 563 Label* fall_through) { |
564 if (CpuFeatures::IsSupported(VFP3)) { | 564 if (CpuFeatures::IsSupported(VFP3)) { |
565 CpuFeatures::Scope scope(VFP3); | |
566 // Emit the inlined tests assumed by the stub. | |
567 __ LoadRoot(ip, Heap::kUndefinedValueRootIndex); | |
568 __ cmp(result_register(), ip); | |
569 __ b(eq, if_false); | |
570 __ LoadRoot(ip, Heap::kTrueValueRootIndex); | |
571 __ cmp(result_register(), ip); | |
572 __ b(eq, if_true); | |
573 __ LoadRoot(ip, Heap::kFalseValueRootIndex); | |
574 __ cmp(result_register(), ip); | |
575 __ b(eq, if_false); | |
576 STATIC_ASSERT(kSmiTag == 0); | |
577 __ tst(result_register(), result_register()); | |
578 __ b(eq, if_false); | |
579 __ JumpIfSmi(result_register(), if_true); | |
580 | |
581 // Call the ToBoolean stub for all other cases. | |
582 ToBooleanStub stub(result_register()); | 565 ToBooleanStub stub(result_register()); |
583 __ CallStub(&stub); | 566 __ CallStub(&stub); |
584 __ tst(result_register(), result_register()); | 567 __ tst(result_register(), result_register()); |
585 } else { | 568 } else { |
586 // Call the runtime to find the boolean value of the source and then | 569 // Call the runtime to find the boolean value of the source and then |
587 // translate it into control flow to the pair of labels. | 570 // translate it into control flow to the pair of labels. |
588 __ push(result_register()); | 571 __ push(result_register()); |
589 __ CallRuntime(Runtime::kToBool, 1); | 572 __ CallRuntime(Runtime::kToBool, 1); |
590 __ LoadRoot(ip, Heap::kFalseValueRootIndex); | 573 __ LoadRoot(ip, Heap::kFalseValueRootIndex); |
591 __ cmp(r0, ip); | 574 __ cmp(r0, ip); |
592 } | 575 } |
593 | |
594 // The stub returns nonzero for true. | |
595 Split(ne, if_true, if_false, fall_through); | 576 Split(ne, if_true, if_false, fall_through); |
596 } | 577 } |
597 | 578 |
598 | 579 |
599 void FullCodeGenerator::Split(Condition cond, | 580 void FullCodeGenerator::Split(Condition cond, |
600 Label* if_true, | 581 Label* if_true, |
601 Label* if_false, | 582 Label* if_false, |
602 Label* fall_through) { | 583 Label* fall_through) { |
603 if (if_false == fall_through) { | 584 if (if_false == fall_through) { |
604 __ b(cond, if_true); | 585 __ b(cond, if_true); |
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4374 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value. | 4355 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value. |
4375 __ add(pc, r1, Operand(masm_->CodeObject())); | 4356 __ add(pc, r1, Operand(masm_->CodeObject())); |
4376 } | 4357 } |
4377 | 4358 |
4378 | 4359 |
4379 #undef __ | 4360 #undef __ |
4380 | 4361 |
4381 } } // namespace v8::internal | 4362 } } // namespace v8::internal |
4382 | 4363 |
4383 #endif // V8_TARGET_ARCH_ARM | 4364 #endif // V8_TARGET_ARCH_ARM |
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