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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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112 __ popfq(); | 112 __ popfq(); |
113 __ pop(rbp); | 113 __ pop(rbp); |
114 __ ret(0); | 114 __ ret(0); |
115 #undef __ | 115 #undef __ |
116 | 116 |
117 CodeDesc desc; | 117 CodeDesc desc; |
118 assm.GetCode(&desc); | 118 assm.GetCode(&desc); |
119 Object* code = | 119 Object* code = |
120 Heap::CreateCode(desc, NULL, Code::ComputeFlags(Code::STUB), NULL); | 120 Heap::CreateCode(desc, NULL, Code::ComputeFlags(Code::STUB), NULL); |
121 if (!code->IsCode()) return; | 121 if (!code->IsCode()) return; |
122 LOG(CodeCreateEvent(Logger::BUILTIN_TAG, | 122 PROFILE(CodeCreateEvent(Logger::BUILTIN_TAG, |
123 Code::cast(code), "CpuFeatures::Probe")); | 123 Code::cast(code), "CpuFeatures::Probe")); |
124 typedef uint64_t (*F0)(); | 124 typedef uint64_t (*F0)(); |
125 F0 probe = FUNCTION_CAST<F0>(Code::cast(code)->entry()); | 125 F0 probe = FUNCTION_CAST<F0>(Code::cast(code)->entry()); |
126 supported_ = probe(); | 126 supported_ = probe(); |
127 found_by_runtime_probing_ = supported_; | 127 found_by_runtime_probing_ = supported_; |
128 found_by_runtime_probing_ &= ~kDefaultCpuFeatures; | 128 found_by_runtime_probing_ &= ~kDefaultCpuFeatures; |
129 uint64_t os_guarantees = OS::CpuFeaturesImpliedByPlatform(); | 129 uint64_t os_guarantees = OS::CpuFeaturesImpliedByPlatform(); |
130 supported_ |= os_guarantees; | 130 supported_ |= os_guarantees; |
131 found_by_runtime_probing_ &= ~os_guarantees; | 131 found_by_runtime_probing_ &= ~os_guarantees; |
132 // SSE2 and CMOV must be available on an X64 CPU. | 132 // SSE2 and CMOV must be available on an X64 CPU. |
133 ASSERT(IsSupported(CPUID)); | 133 ASSERT(IsSupported(CPUID)); |
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2626 written_position_ = current_position_; | 2626 written_position_ = current_position_; |
2627 } | 2627 } |
2628 } | 2628 } |
2629 | 2629 |
2630 | 2630 |
2631 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask | | 2631 const int RelocInfo::kApplyMask = RelocInfo::kCodeTargetMask | |
2632 1 << RelocInfo::INTERNAL_REFERENCE | | 2632 1 << RelocInfo::INTERNAL_REFERENCE | |
2633 1 << RelocInfo::JS_RETURN; | 2633 1 << RelocInfo::JS_RETURN; |
2634 | 2634 |
2635 } } // namespace v8::internal | 2635 } } // namespace v8::internal |
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