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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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