diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-14.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-14.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-14.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-14.c new file mode 100644 index 000000000..3be025f07 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-14.c @@ -0,0 +1,21 @@ +/* PR tree-optimization/29738. We used not to realize that "i" can never + become nonzero. */ + +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +int i; + +void foo (void); +void bar (void) +{ + int j; + i = 0; + for (j = 0; j < 10000; j++) + if (i) + foo (); +} + +/* Everything except for the "i = 0" assignment should get removed. */ +/* { dg-final { scan-tree-dump-times "if" 0 "optimized" { xfail *-*-* } } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |