diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-2.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-2.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-2.c new file mode 100644 index 000000000..104ef26df --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-2.c @@ -0,0 +1,24 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-dse1" } */ + +int a, b, c; +int +foo () +{ + int *p; + if (c) + p = &a; + else + p = &b; + + *p = 3; + *p = 4; + return *p; +} + + +/* We should eliminate the first assignment to *p, but not the second. */ +/* { dg-final { scan-tree-dump-times " = 3" 0 "dse1"} } */ +/* { dg-final { scan-tree-dump-times " = 4" 1 "dse1"} } */ + +/* { dg-final { cleanup-tree-dump "dse1" } } */ |