diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-1short.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-1short.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-1short.c b/gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-1short.c new file mode 100644 index 000000000..526f17009 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/autopar/reduc-1short.c @@ -0,0 +1,66 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */ + +#include <stdarg.h> +#include <stdlib.h> + +#define N 1600 +#define DIFF 242 + +unsigned short ub[N] = {1,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45}; +unsigned short uc[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; + +__attribute__ ((noinline)) void +main1 (unsigned short x, unsigned short max_result, unsigned short min_result) +{ + int i; + unsigned short udiff = 2; + unsigned short umax = x; + unsigned short umin = x; + + for (i = 0; i < N; i++) { + udiff += (unsigned short)(ub[i] - uc[i]); + } + + for (i = 0; i < N; i++) { + umax = umax < uc[i] ? uc[i] : umax; + } + + for (i = 0; i < N; i++) { + umin = umin > uc[i] ? uc[i] : umin; + } + + /* check results: */ + if (udiff != DIFF) + abort (); + if (umax != max_result) + abort (); + if (umin != min_result) + abort (); +} + + __attribute__((noinline)) + void init_arrays () + { + int i; + + for (i=16; i<N; i++) + { + ub[i] = 1; + uc[i] = 1; + } +} + +int main (void) +{ + init_arrays(); + main1 (100, 100, 1); + main1 (0, 15, 0); + return 0; +} + +/* { dg-final { scan-tree-dump-times "Detected reduction" 3 "parloops" } } */ +/* { dg-final { scan-tree-dump-times "SUCCESS: may be parallelized" 4 "parloops" } } */ +/* { dg-final { cleanup-tree-dump "parloops" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ + |