diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-1.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-1.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-1.c new file mode 100644 index 000000000..20854813d --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-1.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-optimized" } */ + +/* Testcase for PR31657. */ + +int foo (int x, int a, int b) +{ + int c = 1 << a; + if (x & c) + if (x & (1 << b)) + /* returning 1 causes phiopt to trigger in */ + return 2; + return 0; +} + +/* { dg-final { scan-tree-dump "\\|" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |