diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr16721.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr16721.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr16721.c b/gcc/testsuite/gcc.dg/tree-ssa/pr16721.c new file mode 100644 index 000000000..eec753405 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr16721.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-strict-aliasing -fdump-tree-optimized" } */ + +struct data { + volatile unsigned long *addr; +} *p; + +int test() +{ + *p->addr; + return 0; +} + +/* The load from p->addr should not disappear. */ +/* { dg-final { scan-tree-dump-times "\->addr" 1 "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |