diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c b/gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c new file mode 100644 index 000000000..c13e1d36f --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/reassoc-19.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-Os -fdump-tree-reassoc2" } */ + +/* Slightly changed testcase from PR middle-end/40815. */ +void bar(char*, char*, int); +void foo(char* left, char* rite, int element) +{ + while (left <= rite) + { + /* This should expand into + D.zzzz = D.zzzz - D.xxxx; + and NOT to + D.D.yyyy = -D.xxxx; D.zzzz = D.zzzz + D.yyyy; */ + rite -= element; + bar(left, rite, element); + } +} + +/* There should be no " + " in the dump. */ +/* { dg-final { scan-tree-dump-times " \\\+ " 0 "reassoc2" } } */ +/* { dg-final { cleanup-tree-dump "reassoc2" } } */ |