diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-1.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-1.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-1.c new file mode 100644 index 00000000000..43eb6e0848f --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-1.c @@ -0,0 +1,19 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-pre-stats" } */ +int main(int argc, char **argv) +{ + int a; + int b; + int c; + b = argc + 1; + c = argc + 2; + a = b + c; + if (argc * 2) + { + c = argc + 3; + } + printf ("%d, %d\n", a, b + c); +} +/* We should eliminate one evaluation of b + c along the main path, + causing one reload. */ +/* { dg-final { scan-tree-dump-times "Reloads:1" 1 "pre"} } */ |