From: Sebastian Pop <sebastian.pop@amd.com>
Date: Wed, 11 Aug 2010 20:28:47 +0000 (+0000)
Subject: Add testcase for PR20742.
X-Git-Tag: releases/gcc-4.6.0~5060
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5df5f257f5abd41d8554f769d763f0521d374f8a;p=thirdparty%2Fgcc.git

Add testcase for PR20742.

2010-07-20  Sebastian Pop  <sebastian.pop@amd.com>

	* gcc.dg/tree-ssa/pr20742.c: New.

From-SVN: r163150
---

diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite
index d929c9a9f4b9..5e36bc3917db 100644
--- a/gcc/ChangeLog.graphite
+++ b/gcc/ChangeLog.graphite
@@ -1,3 +1,7 @@
+2010-07-20  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* gcc.dg/tree-ssa/pr20742.c: New.
+
 2010-07-15  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* sese.c (rename_uses): Call unshare_expr before force_gimple_operand.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 46cf6464a5c3..553e567ae89c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* gcc.dg/tree-ssa/pr20742.c: New.
+
 2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* gcc.dg/graphite/id-23.c: New.
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr20742.c b/gcc/testsuite/gcc.dg/tree-ssa/pr20742.c
new file mode 100644
index 000000000000..21d6eb63c8cc
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr20742.c
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#define TEN(x) x x x x x x x x x x
+#define THOUSAND(x) TEN (TEN (TEN (x)))
+
+int
+foo (int x, int y)
+{
+  register int a = y + 57;
+  register int b = y + 31;
+
+  while (x-- > 0)
+    {
+      THOUSAND (a += b; b -= a;)
+    }
+  return a + b;
+}