Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/vect/no-vfa-vect-61.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-require-effective-target vect_int } */ /* { dg-require-effective-target vect_float } */ #include <stdarg.h> #include <string.h> #include "tree-vect.h" #define N 256 __attribute__ ((noinline)) void bar (float *pa, float *pb, float *pc) { int i; /* check results: */ for (i = 0; i < N/2; i++) { if (pa[i] != (pb[i+1] * pc[i+1])) abort (); } return; } __attribute__ ((noinline)) void foo (float *pb, float *pc) { float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57}; float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; memcpy (pb, b, sizeof (b)); memcpy (pc, c, sizeof (c)); } /* Unaligned pointer read accesses with known alignment, and an unaligned write access with unknown alignment. The loop bound is iunknown. Can't prove that the pointers don't alias. vect-57.c is similar to this one with one difference: the loop bound is known. vect-60.c is similar to this one with two differences: aliasing is not a problem, and the write access is unaligned. */ __attribute__ ((noinline)) int main1 (int n , float *pa) { int i; float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); float *pb = b; float *pc = c; foo (pb, pc); for (i = 0; i < n/2; i++) { pa[i] = pb[i+1] * pc[i+1]; } bar (pa,pb,pc); return 0; } int main (void) { int i; int n=N; float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); check_vect (); main1 (n,a); return 0; } /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */