summaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c
diff options
context:
space:
mode:
authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c
downloadcbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2
cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository.
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.c23
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" } } */