diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/autopar/outer-6.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/autopar/outer-6.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/autopar/outer-6.c b/gcc/testsuite/gcc.dg/autopar/outer-6.c new file mode 100644 index 000000000..6e027d2f6 --- /dev/null +++ b/gcc/testsuite/gcc.dg/autopar/outer-6.c @@ -0,0 +1,51 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-parallelize-loops=4 -fdump-tree-parloops-details -fdump-tree-optimized" } */ + +void abort (void); + +int x[500][500]; +int y[500]; +int g_sum=0; + +__attribute__((noinline)) +void init (int i, int j) +{ + x[i][j]=1; +} + +__attribute__((noinline)) +void parloop (int N) +{ + int i, j; + int sum; + + /* Outer loop reduction, outerloop is parallelized. */ + sum=0; + for (i = 0; i < N; i++) + { + for (j = 0; j < N; j++) + y[i]=x[i][j]; + sum += y[i]; + } + g_sum = sum; +} + +int main(void) +{ + int i,j; + for (i = 0; i < 500; i++) + for (j = 0; j < 500; j++) + init(i, j); + + parloop(500); + + return 0; +} + + +/* Check that outer loop is parallelized. */ +/* { dg-final { scan-tree-dump-times "parallelizing outer loop" 1 "parloops" } } */ +/* { dg-final { scan-tree-dump-times "parallelizing inner loop" 0 "parloops" } } */ +/* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "parloops" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |