diff --git a/src/zm_utils.cpp b/src/zm_utils.cpp index c96851e79..ecb220021 100644 --- a/src/zm_utils.cpp +++ b/src/zm_utils.cpp @@ -229,63 +229,31 @@ void hwcaps_detect() { neonversion = 0; sse_version = 0; #if (defined(__i386__) || defined(__x86_64__)) - /* x86 or x86-64 processor */ - uint32_t r_edx, r_ecx, r_ebx; + __builtin_cpu_init(); -#ifdef __x86_64__ - __asm__ __volatile__( - "push %%rbx\n\t" - "mov $0x0,%%ecx\n\t" - "mov $0x7,%%eax\n\t" - "cpuid\n\t" - "push %%rbx\n\t" - "mov $0x1,%%eax\n\t" - "cpuid\n\t" - "pop %%rax\n\t" - "pop %%rbx\n\t" - : "=d" (r_edx), "=c" (r_ecx), "=a" (r_ebx) - : - : - ); -#else - __asm__ __volatile__( - "push %%ebx\n\t" - "mov $0x0,%%ecx\n\t" - "mov $0x7,%%eax\n\t" - "cpuid\n\t" - "push %%ebx\n\t" - "mov $0x1,%%eax\n\t" - "cpuid\n\t" - "pop %%eax\n\t" - "pop %%ebx\n\t" - : "=d" (r_edx), "=c" (r_ecx), "=a" (r_ebx) - : - : - ); -#endif - if ( r_ebx & 0x00000020 ) { + if ( __builtin_cpu_supports("avx2") ) { sse_version = 52; /* AVX2 */ Debug(1, "Detected a x86\\x86-64 processor with AVX2"); - } else if ( r_ecx & 0x10000000 ) { + } else if ( __builtin_cpu_supports("avx") ) { sse_version = 51; /* AVX */ Debug(1, "Detected a x86\\x86-64 processor with AVX"); - } else if ( r_ecx & 0x00100000 ) { + } else if ( __builtin_cpu_supports("sse4.2") ) { sse_version = 42; /* SSE4.2 */ Debug(1, "Detected a x86\\x86-64 processor with SSE4.2"); - } else if ( r_ecx & 0x00080000 ) { + } else if ( __builtin_cpu_supports("sse4.1") ) { sse_version = 41; /* SSE4.1 */ Debug(1, "Detected a x86\\x86-64 processor with SSE4.1"); - } else if ( r_ecx & 0x00000200 ) { + } else if ( __builtin_cpu_supports("ssse3") ) { sse_version = 35; /* SSSE3 */ Debug(1,"Detected a x86\\x86-64 processor with SSSE3"); - } else if ( r_ecx & 0x00000001 ) { + } else if ( __builtin_cpu_supports("sse3") ) { sse_version = 30; /* SSE3 */ Debug(1, "Detected a x86\\x86-64 processor with SSE3"); - } else if ( r_edx & 0x04000000 ) { + } else if ( __builtin_cpu_supports("sse2") ) { sse_version = 20; /* SSE2 */ Debug(1, "Detected a x86\\x86-64 processor with SSE2"); - } else if ( r_edx & 0x02000000 ) { + } else if ( __builtin_cpu_supports("sse") ) { sse_version = 10; /* SSE */ Debug(1, "Detected a x86\\x86-64 processor with SSE"); } else { @@ -320,7 +288,7 @@ __attribute__((noinline,__target__("sse2"))) #endif void* sse2_aligned_memcpy(void* dest, const void* src, size_t bytes) { #if ((defined(__i386__) || defined(__x86_64__) || defined(ZM_KEEP_SSE)) && !defined(ZM_STRIP_SSE)) - if ( bytes > 128 ) { + if(bytes > 128) { unsigned int remainder = bytes % 128; const uint8_t* lastsrc = (uint8_t*)src + (bytes - remainder); @@ -362,7 +330,7 @@ void* sse2_aligned_memcpy(void* dest, const void* src, size_t bytes) { } #else /* Non x86\x86-64 platform, use memcpy */ - memcpy(dest, src, bytes); + memcpy(dest,src,bytes); #endif return dest; }