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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions | 5 // modification, are permitted provided that the following conditions |
6 // are met: | 6 // are met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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45 namespace v8 { | 45 namespace v8 { |
46 namespace internal { | 46 namespace internal { |
47 | 47 |
48 // ----------------------------------------------------------------------------- | 48 // ----------------------------------------------------------------------------- |
49 // Implementation of CpuFeatures | 49 // Implementation of CpuFeatures |
50 | 50 |
51 void CpuFeatures::ProbeImpl(bool cross_compile) { | 51 void CpuFeatures::ProbeImpl(bool cross_compile) { |
52 CPU cpu; | 52 CPU cpu; |
53 CHECK(cpu.has_sse2()); // SSE2 support is mandatory. | 53 CHECK(cpu.has_sse2()); // SSE2 support is mandatory. |
54 CHECK(cpu.has_cmov()); // CMOV support is mandatory. | 54 CHECK(cpu.has_cmov()); // CMOV support is mandatory. |
55 supported_ |= OS::CpuFeaturesImpliedByPlatform(); | |
56 | 55 |
57 // Only use statically determined features for cross compile (snapshot). | 56 // Only use statically determined features for cross compile (snapshot). |
58 if (cross_compile) return; | 57 if (cross_compile) return; |
59 | 58 |
60 if (cpu.has_sse41() && FLAG_enable_sse4_1) supported_ |= 1u << SSE4_1; | 59 if (cpu.has_sse41() && FLAG_enable_sse4_1) supported_ |= 1u << SSE4_1; |
61 if (cpu.has_sse3() && FLAG_enable_sse3) supported_ |= 1u << SSE3; | 60 if (cpu.has_sse3() && FLAG_enable_sse3) supported_ |= 1u << SSE3; |
62 } | 61 } |
63 | 62 |
64 | 63 |
65 void CpuFeatures::PrintTarget() { } | 64 void CpuFeatures::PrintTarget() { } |
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2637 fprintf(coverage_log, "%s\n", file_line); | 2636 fprintf(coverage_log, "%s\n", file_line); |
2638 fflush(coverage_log); | 2637 fflush(coverage_log); |
2639 } | 2638 } |
2640 } | 2639 } |
2641 | 2640 |
2642 #endif | 2641 #endif |
2643 | 2642 |
2644 } } // namespace v8::internal | 2643 } } // namespace v8::internal |
2645 | 2644 |
2646 #endif // V8_TARGET_ARCH_IA32 | 2645 #endif // V8_TARGET_ARCH_IA32 |
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