diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/autopar/outer-4.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/autopar/outer-4.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/autopar/outer-4.c b/gcc/testsuite/gcc.dg/autopar/outer-4.c new file mode 100644 index 00000000000..56f6123385d --- /dev/null +++ b/gcc/testsuite/gcc.dg/autopar/outer-4.c @@ -0,0 +1,37 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */ + +void abort (void); + +int g_sum=0; +int x[500][500]; + +__attribute__((noinline)) +void parloop (int N) +{ + int i, j; + int sum; + + /* Double reduction is currently not supported, outer loop is not + parallelized. Inner reduction is detected, inner loop is + parallelized. */ + sum = 0; + for (i = 0; i < N; i++) + for (j = 0; j < N; j++) + sum += x[i][j]; + + g_sum = sum; +} + +int main(void) +{ + parloop(500); + + return 0; +} + + +/* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "parloops" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |