2012-03-27 Martin Jambor <mjambor@suse.cz>

	PR middle-end/52693
	* tree-sra.c (sra_modify_assign): Do not call
	load_assign_lhs_subreplacements when working with an unscalarizable
	region.

	* testsuite/gcc.dg/torture/pr52693.c: New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@185891 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 33 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/torture/pr52693.c b/gcc/testsuite/gcc.dg/torture/pr52693.c
new file mode 100644
index 00000000000..93e0680ac7c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr52693.c
@@ -0,0 +1,33 @@
+/* { dg-do run } */
+
+struct pair
+{
+  int x;
+  int y;
+};
+
+struct array
+{
+  struct pair elems[ 2 ];
+  unsigned index;
+};
+
+extern void abort ();
+
+void __attribute__ ((noinline,noclone))
+test_results (int x1, int y1, int x2, int y2)
+{
+  if (x1 != x2 || y1 != y2)
+    abort ();
+}
+
+int
+main (void)
+{
+  struct array arr = {{{1,2}, {3,4}}, 1};
+  struct pair last = arr.elems[arr.index];
+
+  test_results ( last.x, last.y, arr.elems[1].x, arr.elems[1].y);
+
+  return 0;
+}