diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loop-5.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-5.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-5.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-5.c new file mode 100644 index 00000000000..4ec6fd04bcd --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-5.c @@ -0,0 +1,26 @@ +/* A test for induction variable merging. */ + +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-vars" } */ + +void foo(int); + +void xxx(void) +{ + int iter, jter; + + for (iter = 0, jter = 2; iter < 100; iter++, jter++) + { + foo (iter); + foo (jter); + } +} + +/* Only iter variable should remain. */ + +/* { dg-final { scan-tree-dump-times "int iter" 1 "vars" } } */ +/* { dg-final { scan-tree-dump-times "jter" 0 "vars" } } */ + +/* And the use of jter should be replaced by iter + 2 */ + +/* { dg-final { scan-tree-dump-times " \\+ 2" 1 "vars" } } */ |
