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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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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51 "mov %%ebx, %%edi\n" | 51 "mov %%ebx, %%edi\n" |
52 "cpuid\n" | 52 "cpuid\n" |
53 "xchg %%edi, %%ebx\n" | 53 "xchg %%edi, %%ebx\n" |
54 : "=a"(cpu_info[0]), "=D"(cpu_info[1]), "=c"(cpu_info[2]), "=d"(cpu_info[3]) | 54 : "=a"(cpu_info[0]), "=D"(cpu_info[1]), "=c"(cpu_info[2]), "=d"(cpu_info[3]) |
55 : "a"(info_type) | 55 : "a"(info_type) |
56 ); | 56 ); |
57 } | 57 } |
58 | 58 |
59 #else // !V8_CC_MSVC || (!defined(__i386__) && !defined(__pic__)) | 59 #else // !V8_CC_MSVC || (!defined(__i386__) && !defined(__pic__)) |
60 | 60 |
61 static void V8_INLINE(__cpuid(int cpu_info[4], int info_type)) { | 61 static V8_INLINE(void __cpuid(int cpu_info[4], int info_type)) { |
62 __asm__ volatile ( | 62 __asm__ volatile ( |
63 "cpuid \n\t" | 63 "cpuid \n\t" |
64 : "=a"(cpu_info[0]), "=b"(cpu_info[1]), "=c"(cpu_info[2]), "=d"(cpu_info[3]) | 64 : "=a"(cpu_info[0]), "=b"(cpu_info[1]), "=c"(cpu_info[2]), "=d"(cpu_info[3]) |
65 : "a"(info_type) | 65 : "a"(info_type) |
66 ); | 66 ); |
67 } | 67 } |
68 | 68 |
69 #endif | 69 #endif |
70 | 70 |
71 #elif V8_HOST_ARCH_ARM || V8_HOST_ARCH_MIPS | 71 #elif V8_HOST_ARCH_ARM || V8_HOST_ARCH_MIPS |
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437 // facility is universally available on the MIPS architectures, | 437 // facility is universally available on the MIPS architectures, |
438 // so it's up to individual OSes to provide such. | 438 // so it's up to individual OSes to provide such. |
439 CPUInfo cpu_info; | 439 CPUInfo cpu_info; |
440 char* cpu_model = cpu_info.ExtractField("cpu model"); | 440 char* cpu_model = cpu_info.ExtractField("cpu model"); |
441 has_fpu_ = HasListItem(cpu_model, "FPU"); | 441 has_fpu_ = HasListItem(cpu_model, "FPU"); |
442 delete[] cpu_model; | 442 delete[] cpu_model; |
443 #endif | 443 #endif |
444 } | 444 } |
445 | 445 |
446 } } // namespace v8::internal | 446 } } // namespace v8::internal |
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