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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_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/bootstrapper.h" | 8 #include "src/bootstrapper.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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3185 __ Ret(); | 3185 __ Ret(); |
3186 __ bind(¬_oddball); | 3186 __ bind(¬_oddball); |
3187 | 3187 |
3188 __ pop(ecx); // Pop return address. | 3188 __ pop(ecx); // Pop return address. |
3189 __ push(eax); // Push argument. | 3189 __ push(eax); // Push argument. |
3190 __ push(ecx); // Push return address. | 3190 __ push(ecx); // Push return address. |
3191 __ TailCallRuntime(Runtime::kToNumber, 1, 1); | 3191 __ TailCallRuntime(Runtime::kToNumber, 1, 1); |
3192 } | 3192 } |
3193 | 3193 |
3194 | 3194 |
| 3195 void ToLengthStub::Generate(MacroAssembler* masm) { |
| 3196 // The ToLength stub takes on argument in eax. |
| 3197 Label not_smi, positive_smi; |
| 3198 __ JumpIfNotSmi(eax, ¬_smi, Label::kNear); |
| 3199 STATIC_ASSERT(kSmiTag == 0); |
| 3200 __ test(eax, eax); |
| 3201 __ j(greater_equal, &positive_smi, Label::kNear); |
| 3202 __ xor_(eax, eax); |
| 3203 __ bind(&positive_smi); |
| 3204 __ Ret(); |
| 3205 __ bind(¬_smi); |
| 3206 |
| 3207 __ pop(ecx); // Pop return address. |
| 3208 __ push(eax); // Push argument. |
| 3209 __ push(ecx); // Push return address. |
| 3210 __ TailCallRuntime(Runtime::kToLength, 1, 1); |
| 3211 } |
| 3212 |
| 3213 |
3195 void ToStringStub::Generate(MacroAssembler* masm) { | 3214 void ToStringStub::Generate(MacroAssembler* masm) { |
3196 // The ToString stub takes one argument in eax. | 3215 // The ToString stub takes one argument in eax. |
3197 Label is_number; | 3216 Label is_number; |
3198 __ JumpIfSmi(eax, &is_number, Label::kNear); | 3217 __ JumpIfSmi(eax, &is_number, Label::kNear); |
3199 | 3218 |
3200 Label not_string; | 3219 Label not_string; |
3201 __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edi); | 3220 __ CmpObjectType(eax, FIRST_NONSTRING_TYPE, edi); |
3202 // eax: receiver | 3221 // eax: receiver |
3203 // edi: receiver map | 3222 // edi: receiver map |
3204 __ j(above_equal, ¬_string, Label::kNear); | 3223 __ j(above_equal, ¬_string, Label::kNear); |
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5843 Operand(ebp, 7 * kPointerSize), NULL); | 5862 Operand(ebp, 7 * kPointerSize), NULL); |
5844 } | 5863 } |
5845 | 5864 |
5846 | 5865 |
5847 #undef __ | 5866 #undef __ |
5848 | 5867 |
5849 } // namespace internal | 5868 } // namespace internal |
5850 } // namespace v8 | 5869 } // namespace v8 |
5851 | 5870 |
5852 #endif // V8_TARGET_ARCH_IA32 | 5871 #endif // V8_TARGET_ARCH_IA32 |
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