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AVX2 bit is in %ebx, not %ecx

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This commit is contained in:
Frank Denis
2016-03-21 03:42:33 +01:00
parent 2b71f28c4c
commit fd440e7b4d
1 changed files with 4 additions and 2 deletions
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src/libsodium/sodium/runtime.c
+4 -2
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@@ -23,16 +23,18 @@ typedef struct CPUFeatures_ {
static CPUFeatures _cpu_features;
#define CPUID_SSE2 0x04000000
#define CPUIDECX_SSE3 0x00000001
#define CPUIDECX_SSSE3 0x00000200
#define CPUIDECX_SSE41 0x00080000
#define CPUIDECX_AVX 0x10000000
#define CPUIDECX_AVX2 0x00000020
#define CPUIDECX_PCLMUL 0x00000002
#define CPUIDECX_AESNI 0x02000000
#define CPUIDECX_XSAVE 0x04000000
#define CPUIDECX_OSXSAVE 0x08000000
#define CPUIDEBX_AVX2 0x00000020
#define XCR0_SSE 0x00000002
#define XCR0_AVX 0x00000004
@@ -165,7 +167,7 @@ _sodium_runtime_intel_cpu_features(CPUFeatures * const cpu_features)
#if defined(HAVE_AVX2INTRIN_H) || \
(defined(_MSC_VER) && (defined(_M_X64) || defined(_M_AMD64) || defined(_M_IX86)))
if (cpu_features->has_avx) {
cpu_features->has_avx2 = ((cpu_info[2] & CPUIDECX_AVX2) != 0x0);
cpu_features->has_avx2 = ((cpu_info[1] & CPUIDEBX_AVX2) != 0x0);
}
#endif