diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/no-scevccp-outer-22.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/no-scevccp-outer-22.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/no-scevccp-outer-22.c b/gcc/testsuite/gcc.dg/vect/no-scevccp-outer-22.c new file mode 100644 index 000000000..ac24b05d0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/no-scevccp-outer-22.c @@ -0,0 +1,54 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 40 + +int a[N]; + +__attribute__ ((noinline)) int +foo (int n){ + int i,j; + int sum; + + if (n<=0) + return 0; + + /* inner-loop index j used after the inner-loop */ + for (i = 0; i < N; i++) { + sum = 0; + for (j = 0; j < n; j+=2) { + sum += j; + } + a[i] = sum + j; + } +} + +int main (void) +{ + int i,j; + int sum; + + check_vect (); + + for (i=0; i<N; i++) + a[i] = i; + + foo (N); + + /* check results: */ + for (i=0; i<N; i++) + { + sum = 0; + for (j = 0; j < N; j+=2) + sum += j; + if (a[i] != sum + j) + abort(); + } + + return 0; +} + +/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |