Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/vect/tree-vect.h @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
comparison
equal
deleted
inserted
replaced
68:561a7518be6b | 111:04ced10e8804 |
---|---|
1 /* Check if system supports SIMD */ | |
2 #include <signal.h> | |
3 | |
4 #if defined(__i386__) || defined(__x86_64__) | |
5 # include "cpuid.h" | |
6 #endif | |
7 | |
8 #ifdef __cplusplus | |
9 extern "C" { | |
10 #endif | |
11 extern void abort (void); | |
12 extern void exit (int); | |
13 #ifdef __cplusplus | |
14 } | |
15 #endif | |
16 | |
17 static void | |
18 sig_ill_handler (int sig) | |
19 { | |
20 exit(0); | |
21 } | |
22 | |
23 static void __attribute__((noinline)) | |
24 check_vect (void) | |
25 { | |
26 signal(SIGILL, sig_ill_handler); | |
27 #if defined(__PAIRED__) | |
28 /* 750CL paired-single instruction, 'ps_mul %v0,%v0,%v0'. */ | |
29 asm volatile (".long 0x10000032"); | |
30 #elif defined(__ppc__) || defined(__ppc64__) || defined(__powerpc__) || defined(powerpc) | |
31 /* Altivec instruction, 'vor %v0,%v0,%v0'. */ | |
32 asm volatile (".long 0x10000484"); | |
33 #elif defined(__i386__) || defined(__x86_64__) | |
34 { | |
35 unsigned int a, b, c, d, | |
36 want_level, want_b = 0, want_c = 0, want_d = 0; | |
37 | |
38 /* Determine what instruction set we've been compiled for, and detect | |
39 that we're running with it. This allows us to at least do a compile | |
40 check for, e.g. SSE4.1 when the machine only supports SSE2. */ | |
41 # if defined(__AVX2__) | |
42 want_level = 7, want_b = bit_AVX2; | |
43 # elif defined(__AVX__) | |
44 want_level = 1, want_c = bit_AVX; | |
45 # elif defined(__SSE4_2__) | |
46 want_level = 1, want_c = bit_SSE4_2; | |
47 # elif defined(__SSE4_1__) | |
48 want_level = 1, want_c = bit_SSE4_1; | |
49 # elif defined(__SSSE3__) | |
50 want_level = 1, want_c = bit_SSSE3; | |
51 # else | |
52 want_level = 1, want_d = bit_SSE2; | |
53 # endif | |
54 | |
55 if (!__get_cpuid (want_level, &a, &b, &c, &d) | |
56 || ((b & want_b) | (c & want_c) | (d & want_d)) == 0) | |
57 exit (0); | |
58 } | |
59 #elif defined(__sparc__) | |
60 asm volatile (".word\t0x81b007c0"); | |
61 #elif defined(__arm__) | |
62 { | |
63 /* On some processors without NEON support, this instruction may | |
64 be a no-op, on others it may trap, so check that it executes | |
65 correctly. */ | |
66 long long a = 0, b = 1; | |
67 asm ("vorr %P0, %P1, %P2" | |
68 : "=w" (a) | |
69 : "0" (a), "w" (b)); | |
70 if (a != 1) | |
71 exit (0); | |
72 } | |
73 #elif defined(__mips_msa) | |
74 asm volatile ("or.v $w0,$w0,$w0"); | |
75 #endif | |
76 signal (SIGILL, SIG_DFL); | |
77 } |