Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/vect/no-vfa-vect-43.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_float } */ #include <stdarg.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; i++) { if (pa[i] != (pb[i] * pc[i])) abort (); } return; } __attribute__ ((noinline)) int main1 (float *pa, float *pb, float *pc) { int i; float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); for (i = 0; i < N; i++) { b[i] = pb[i]; c[i] = pc[i]; } /* Vectorizable: pa may not alias pb and/or pc, even though their addresses escape. &pa would need to escape to point to escaped memory. */ for (i = 0; i < N; i++) { pa[i] = b[i] * c[i]; } bar (pa,b,c); return 0; } __attribute__ ((noinline)) int main2 (float *pa, float *pb, float *pc) { int i; float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); for (i = 0; i < N; i++) { b[i] = pb[i]; c[i] = pc[i]; } /* Vectorizable: pb and pc addresses do not escape. */ for (i = 0; i < N; i++) { pa[i] = b[i] * c[i]; } /* check results: */ for (i = 0; i < N; i++) { if (pa[i] != (b[i] * c[i])) abort (); } return 0; } int main (void) { int i; float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); 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}; check_vect (); main1 (a,b,c); main2 (a,b,c); return 0; } /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 2 "vect" } } */ /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 6 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */