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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_ARM | 5 #if V8_TARGET_ARCH_ARM |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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2692 | 2692 |
2693 // Check if string has a cached array index. | 2693 // Check if string has a cached array index. |
2694 Label runtime; | 2694 Label runtime; |
2695 __ ldr(r2, FieldMemOperand(r0, String::kHashFieldOffset)); | 2695 __ ldr(r2, FieldMemOperand(r0, String::kHashFieldOffset)); |
2696 __ tst(r2, Operand(String::kContainsCachedArrayIndexMask)); | 2696 __ tst(r2, Operand(String::kContainsCachedArrayIndexMask)); |
2697 __ b(ne, &runtime); | 2697 __ b(ne, &runtime); |
2698 __ IndexFromHash(r2, r0); | 2698 __ IndexFromHash(r2, r0); |
2699 __ Ret(); | 2699 __ Ret(); |
2700 | 2700 |
2701 __ bind(&runtime); | 2701 __ bind(&runtime); |
2702 __ Push(r0); // Push argument. | 2702 { |
2703 __ TailCallRuntime(Runtime::kStringToNumber); | 2703 FrameScope frame(masm, StackFrame::INTERNAL); |
| 2704 // Push argument. |
| 2705 __ Push(r0); |
| 2706 // We cannot use a tail call here because this builtin can also be called |
| 2707 // from wasm. |
| 2708 __ CallRuntime(Runtime::kStringToNumber); |
| 2709 } |
| 2710 __ Ret(); |
2704 } | 2711 } |
2705 | 2712 |
2706 void Builtins::Generate_ToNumber(MacroAssembler* masm) { | 2713 void Builtins::Generate_ToNumber(MacroAssembler* masm) { |
2707 // The ToNumber stub takes one argument in r0. | 2714 // The ToNumber stub takes one argument in r0. |
2708 STATIC_ASSERT(kSmiTag == 0); | 2715 STATIC_ASSERT(kSmiTag == 0); |
2709 __ tst(r0, Operand(kSmiTagMask)); | 2716 __ tst(r0, Operand(kSmiTagMask)); |
2710 __ Ret(eq); | 2717 __ Ret(eq); |
2711 | 2718 |
2712 __ CompareObjectType(r0, r1, r1, HEAP_NUMBER_TYPE); | 2719 __ CompareObjectType(r0, r1, r1, HEAP_NUMBER_TYPE); |
2713 // r0: receiver | 2720 // r0: receiver |
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2727 // r1: receiver instance type | 2734 // r1: receiver instance type |
2728 __ Jump(masm->isolate()->builtins()->StringToNumber(), RelocInfo::CODE_TARGET, | 2735 __ Jump(masm->isolate()->builtins()->StringToNumber(), RelocInfo::CODE_TARGET, |
2729 lo); | 2736 lo); |
2730 | 2737 |
2731 Label not_oddball; | 2738 Label not_oddball; |
2732 __ cmp(r1, Operand(ODDBALL_TYPE)); | 2739 __ cmp(r1, Operand(ODDBALL_TYPE)); |
2733 __ b(ne, ¬_oddball); | 2740 __ b(ne, ¬_oddball); |
2734 __ ldr(r0, FieldMemOperand(r0, Oddball::kToNumberOffset)); | 2741 __ ldr(r0, FieldMemOperand(r0, Oddball::kToNumberOffset)); |
2735 __ Ret(); | 2742 __ Ret(); |
2736 __ bind(¬_oddball); | 2743 __ bind(¬_oddball); |
2737 | 2744 { |
2738 __ Push(r0); // Push argument. | 2745 FrameScope frame(masm, StackFrame::INTERNAL); |
2739 __ TailCallRuntime(Runtime::kToNumber); | 2746 // Push argument. |
| 2747 __ Push(r0); |
| 2748 // We cannot use a tail call here because this builtin can also be called |
| 2749 // from wasm. |
| 2750 __ CallRuntime(Runtime::kToNumber); |
| 2751 } |
| 2752 __ Ret(); |
2740 } | 2753 } |
2741 | 2754 |
2742 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { | 2755 void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) { |
2743 // ----------- S t a t e ------------- | 2756 // ----------- S t a t e ------------- |
2744 // -- r0 : actual number of arguments | 2757 // -- r0 : actual number of arguments |
2745 // -- r1 : function (passed through to callee) | 2758 // -- r1 : function (passed through to callee) |
2746 // -- r2 : expected number of arguments | 2759 // -- r2 : expected number of arguments |
2747 // -- r3 : new target (passed through to callee) | 2760 // -- r3 : new target (passed through to callee) |
2748 // ----------------------------------- | 2761 // ----------------------------------- |
2749 | 2762 |
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2863 } | 2876 } |
2864 } | 2877 } |
2865 | 2878 |
2866 | 2879 |
2867 #undef __ | 2880 #undef __ |
2868 | 2881 |
2869 } // namespace internal | 2882 } // namespace internal |
2870 } // namespace v8 | 2883 } // namespace v8 |
2871 | 2884 |
2872 #endif // V8_TARGET_ARCH_ARM | 2885 #endif // V8_TARGET_ARCH_ARM |
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