Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/vect/tree-vect.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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/* Check if system supports SIMD */ #include <signal.h> #if defined(__i386__) || defined(__x86_64__) # include "cpuid.h" #endif #ifdef __cplusplus extern "C" { #endif extern void abort (void); extern void exit (int); #ifdef __cplusplus } #endif static void sig_ill_handler (int sig) { exit(0); } static void __attribute__((noinline)) check_vect (void) { signal(SIGILL, sig_ill_handler); #if defined(__PAIRED__) /* 750CL paired-single instruction, 'ps_mul %v0,%v0,%v0'. */ asm volatile (".long 0x10000032"); #elif defined(__ppc__) || defined(__ppc64__) || defined(__powerpc__) || defined(powerpc) /* Altivec instruction, 'vor %v0,%v0,%v0'. */ asm volatile (".long 0x10000484"); #elif defined(__i386__) || defined(__x86_64__) { unsigned int a, b, c, d, want_level, want_b = 0, want_c = 0, want_d = 0; /* Determine what instruction set we've been compiled for, and detect that we're running with it. This allows us to at least do a compile check for, e.g. SSE4.1 when the machine only supports SSE2. */ # if defined(__AVX2__) want_level = 7, want_b = bit_AVX2; # elif defined(__AVX__) want_level = 1, want_c = bit_AVX; # elif defined(__SSE4_2__) want_level = 1, want_c = bit_SSE4_2; # elif defined(__SSE4_1__) want_level = 1, want_c = bit_SSE4_1; # elif defined(__SSSE3__) want_level = 1, want_c = bit_SSSE3; # else want_level = 1, want_d = bit_SSE2; # endif if (!__get_cpuid (want_level, &a, &b, &c, &d) || ((b & want_b) | (c & want_c) | (d & want_d)) == 0) exit (0); } #elif defined(__sparc__) asm volatile (".word\t0x81b007c0"); #elif defined(__arm__) { /* On some processors without NEON support, this instruction may be a no-op, on others it may trap, so check that it executes correctly. */ long long a = 0, b = 1; asm ("vorr %P0, %P1, %P2" : "=w" (a) : "0" (a), "w" (b)); if (a != 1) exit (0); } #elif defined(__mips_msa) asm volatile ("or.v $w0,$w0,$w0"); #endif signal (SIGILL, SIG_DFL); }