From 1c8d19bb9d7cfb2efcb7b524c7fcc72c02def4d5 Mon Sep 17 00:00:00 2001
From: Richard Guenther <rguenther@suse.de>
Date: Fri, 14 Mar 2008 17:45:20 +0000
Subject: [PATCH] re PR tree-optimization/13761 ([tree-ssa] component refs to
 the same struct should not alias)

2008-03-14  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/13761
	* gcc.dg/tree-ssa/ssa-lim-3.c: New testcase.

From-SVN: r133224
---
 gcc/testsuite/ChangeLog                   |  5 +++++
 gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-3.c | 14 ++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-3.c

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f93230a95ae..93b5b842d8e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-03-14  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/13761
+	* gcc.dg/tree-ssa/ssa-lim-3.c: New testcase.
+
 2008-03-14  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/34172
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-3.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-3.c
new file mode 100644
index 00000000000..bfd8692e72e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-3.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-lim-details -fdump-tree-optimized" } */
+
+struct { int x; int y; } global;
+void foo(int n)
+{
+  int i;
+  for ( i=0; i<n; i++)
+    global.y += global.x*global.x;
+}
+
+/* { dg-final { scan-tree-dump "Executing store motion of global.y" "lim" } } */
+/* { dg-final { scan-tree-dump "Moving statement.*global.x.*out of loop 1" "lim" } } */
+/* { dg-final { cleanup-tree-dump "lim" } } */
-- 
2.30.2