diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c new file mode 100644 index 000000000..ae933bbcc --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c @@ -0,0 +1,23 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-tree-dominator-opts -fdump-tree-fre-stats" } */ +struct s { + int *n; +}; + +int +foo (__SIZE_TYPE__ i, struct s *array) +{ + int *p = array[i].n; + if (p) + { + int *q = array[i].n; + if (p != q) + return 1; + } + return 0; +} +/* We should eliminate two address calculations, and one load. */ +/* We used to eliminate a cast but that was before POINTER_PLUS_EXPR + was added. */ +/* { dg-final { scan-tree-dump-times "Eliminated: 3" 1 "fre"} } */ +/* { dg-final { cleanup-tree-dump "fre" } } */ |