Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/vect/no-vfa-vect-79.c @ 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/vect/no-vfa-vect-79.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,50 @@ +/* { dg-require-effective-target vect_float } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 16 + +float fa[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); +float fb[N+4] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 7.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0}; +float fc[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 7.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5}; + +/* Like vect-80.c but the pointers are not annotated as restricted, + and therefore can't be antialiased. */ + +__attribute__ ((noinline)) int +main1 (float *pa, float *pb, float *pc) +{ + int i; + float *q = pb + 4; + + for (i = 0; i < N; i++) + { + pa[i] = q[i] * pc[i]; + } + + for (i = 0; i < N; i++) + { + if (pa[i] != q[i] * pc[i]) + abort(); + } + + return 0; +} + + +int main (void) +{ + check_vect (); + + main1 (fa, fb, fc); + + return 0; +} + +/* Currently the loops fail to vectorize due to aliasing problems. + If/when the aliasing problems are resolved, unalignment may + prevent vectorization on some targets. */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-times "can't determine dependence" 1 "vect" { target { ! vect_multiple_sizes } } } } */ +/* { dg-final { scan-tree-dump-times "can't determine dependence" 2 "vect" { target vect_multiple_sizes } } } */