diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/no-scevccp-outer-7.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/no-scevccp-outer-7.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/no-scevccp-outer-7.c b/gcc/testsuite/gcc.dg/vect/no-scevccp-outer-7.c new file mode 100644 index 00000000000..ff0dc0dbd5b --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/no-scevccp-outer-7.c @@ -0,0 +1,75 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 16 + +unsigned short in[N]; +unsigned short coef[N]; +unsigned short a[N]; + +unsigned int +foo (short scale){ + int i; + unsigned short j; + unsigned int sum = 0; + unsigned short sum_j; + + for (i = 0; i < N; i++) { + sum_j = 0; + for (j = 0; j < N; j++) { + sum_j += j; + } + a[i] = sum_j; + sum += ((unsigned int) in[i] * (unsigned int) coef[i]) >> scale; + } + return sum; +} + +unsigned short +bar (void) +{ + unsigned short j; + unsigned short sum_j; + + sum_j = 0; + for (j = 0; j < N; j++) { + sum_j += j; + } + + return sum_j; +} + +int main (void) +{ + int i; + unsigned short j, sum_j; + unsigned int sum = 0; + unsigned int res; + + check_vect (); + + for (i=0; i<N; i++){ + in[i] = 2*i; + coef[i] = i; + } + + res = foo (2); + + /* check results: */ + for (i=0; i<N; i++) + { + if (a[i] != bar ()) + abort (); + sum += ((unsigned int) in[i] * (unsigned int) coef[i]) >> 2; + } + if (res != sum) + abort (); + + return 0; +} + +/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" { target vect_widen_mult_hi_to_si } } } */ +/* { dg-final { scan-tree-dump-times "vect_recog_widen_mult_pattern: detected" 1 "vect" } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |