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.

1 files changed, 31 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/arm/pr42495.c b/gcc/testsuite/gcc.target/arm/pr42495.c
new file mode 100644
index 000000000..7e08cf298
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/pr42495.c
@@ -0,0 +1,31 @@
+/* { dg-options "-mthumb -Os -fpic -fdump-rtl-hoist" }  */
+/* { dg-require-effective-target arm_thumb1_ok } */
+/* { dg-require-effective-target fpic } */
+/* Make sure all calculations of gObj's address get hoisted to one location.  */
+/* { dg-final { scan-rtl-dump "PRE/HOIST: end of bb .* copying expression" "hoist" } } */
+
+struct st_a {
+   int data;
+};
+
+struct st_b {
+   struct st_a *p_a;
+    struct st_b *next;
+};
+
+extern struct st_b gObj;
+extern void foo(int, struct st_b*);
+
+int goo(struct st_b * obj) {
+   struct st_a *pa;
+   if (gObj.p_a->data != 0) {
+     foo(gObj.p_a->data, obj);
+   }
+   pa = obj->p_a;
+   if (pa == 0) {
+     return 0;
+   } else if (pa == gObj.p_a) {
+     return 0;
+   }
+   return pa->data;
+}