diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loop-22.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-22.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-22.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-22.c new file mode 100644 index 000000000..fa7da712b --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-22.c @@ -0,0 +1,17 @@ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +int a[100]; + +void test (int n) +{ + int i; + + for (i = 0; i < n; i += 3) + a[i] = i; +} + +/* We used to replace the exit test "i < n" by "i != ((n-1)/3) * 3 + 1". Although + correct, this transformation is obviously harmful. */ + +/* { dg-final { scan-tree-dump-times "/" 0 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |