diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/foldconst-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/foldconst-1.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/foldconst-1.c b/gcc/testsuite/gcc.dg/tree-ssa/foldconst-1.c new file mode 100644 index 000000000..10414a2a5 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/foldconst-1.c @@ -0,0 +1,26 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ +void bar (unsigned int); + +void +foo (void) +{ + char buf[1] = { 3 }; + const char *p = buf; + const char **q = &p; + unsigned int ch; + switch (**q) + { + case 1: ch = 5; break; + case 2: ch = 4; break; + case 3: ch = 3; break; + case 4: ch = 2; break; + case 5: ch = 1; break; + default: ch = 0; break; + } + bar (ch); +} +/* The switch should be switch converted and later constant propagated. */ +/* { dg-final { scan-tree-dump-not "CSWTCH" "optimized"} } */ +/* { dg-final { scan-tree-dump-not "switch" "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |