diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/fast-math-vect-reduc-5.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/fast-math-vect-reduc-5.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/fast-math-vect-reduc-5.c b/gcc/testsuite/gcc.dg/vect/fast-math-vect-reduc-5.c new file mode 100644 index 0000000..dd84f5c --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/fast-math-vect-reduc-5.c @@ -0,0 +1,53 @@ +/* { dg-require-effective-target vect_float } */ + +/* need -funsafe-math-optimizations to vectorize the summation. + also need -ffinite-math-only to create the min/max expr. */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 16 +#define DIFF 242 + +int main1 (float x, float max_result) +{ + int i; + float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45}; + float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; + float diff = 2; + float max = x; + float min = 10; + + for (i = 0; i < N; i++) { + diff += (b[i] - c[i]); + } + + for (i = 0; i < N; i++) { + max = max < c[i] ? c[i] : max; + } + + for (i = 0; i < N; i++) { + min = min > c[i] ? c[i] : min; + } + + /* check results: */ + if (diff != DIFF) + abort (); + if (max != max_result) + abort (); + if (min != 0) + abort (); + + return 0; +} + +int main (void) +{ + check_vect (); + + main1 (100, 100); + main1 (0, 15); + return 0; +} + +/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" } } */ |