From 66f91b93db67ccea9e4d0ec803492e2dbd03974c Mon Sep 17 00:00:00 2001
From: Zdenek Dvorak <ook@ucw.cz>
Date: Mon, 31 Mar 2008 16:19:52 +0200
Subject: re PR rtl-optimization/35729 (const volatile variable access
 incorrectly hoisted out of loop)

	PR rtl-optimization/35729
	* loop-invariant.c (check_maybe_invariant): Disallow volatile memory
	references.

	* gcc.dg/pr35729.c: New test.

From-SVN: r133755
---
 gcc/testsuite/gcc.dg/pr35729.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/pr35729.c

(limited to 'gcc/testsuite/gcc.dg/pr35729.c')

diff --git a/gcc/testsuite/gcc.dg/pr35729.c b/gcc/testsuite/gcc.dg/pr35729.c
new file mode 100644
index 0000000..3ed40f4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr35729.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-Os -fdump-rtl-loop2_invariant" } */
+
+const volatile int g_361 = 3L;
+volatile int g_2 = 0L;
+void func_1 (void)
+{
+  for (g_2 = 0; g_2 > 10; g_2++)
+    {
+      int l_357 = g_361;
+    }
+}
+
+/* { dg-final { scan-rtl-dump-times "Decided to move invariant" 0 "loop2_invariant" } } */
+/* { dg-final { cleanup-rtl-dump "loop2_invariant" } } */
-- 
cgit v1.1