diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/phi-opt-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/phi-opt-1.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-1.c b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-1.c new file mode 100644 index 000000000..b29516936 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-1.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-optimized" } */ + +int f(int a, int b, int c) +{ + if (c == 0) goto temp; + if (a == 0) + return 0; +temp: + if (a == b) + return a; + return a; +} + +/* There should be no ifs as the PHI arguments, we did not + optimize this before because PHI-OPT did not look at + PHIs which have more than two arguments. */ +/* { dg-final { scan-tree-dump-times "if" 0 "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |