From e054362c4a32db8c6ec5ff244c2abdeeaba25616 Mon Sep 17 00:00:00 2001
From: Tom de Vries <tom@codesourcery.com>
Date: Thu, 19 May 2011 09:33:49 +0000
Subject: [PATCH] re PR middle-end/45098 (Missed induction variable
 optimization)

2011-05-19  Tom de Vries  <tom@codesourcery.com>

	PR target/45098
	* gcc.target/arm/ivopts.c: New test.
	* gcc.target/arm/ivopts-2.c: New test.

From-SVN: r173896
---
 gcc/testsuite/ChangeLog                 |  6 ++++++
 gcc/testsuite/gcc.target/arm/ivopts-2.c | 18 ++++++++++++++++++
 gcc/testsuite/gcc.target/arm/ivopts.c   | 15 +++++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/arm/ivopts-2.c
 create mode 100644 gcc/testsuite/gcc.target/arm/ivopts.c

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a9af18eeae3..f9defe50594 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2011-05-19  Tom de Vries  <tom@codesourcery.com>
+
+	PR target/45098
+	* gcc.target/arm/ivopts.c: New test.
+	* gcc.target/arm/ivopts-2.c: New test.
+
 2011-05-19  Tom de Vries  <tom@codesourcery.com>
 
 	* lib/lib/scanasm.exp (object-size): Fix target selector handling.
diff --git a/gcc/testsuite/gcc.target/arm/ivopts-2.c b/gcc/testsuite/gcc.target/arm/ivopts-2.c
new file mode 100644
index 00000000000..4aba3cfb75c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/ivopts-2.c
@@ -0,0 +1,18 @@
+/* { dg-do assemble } */
+/* { dg-options "-Os -mthumb -fdump-tree-ivopts -save-temps" } */
+
+extern void foo2 (short*);
+
+void
+tr4 (short array[], int n)
+{
+  int x;
+  if (n > 0)
+    for (x = 0; x < n; x++)
+      foo2 (&array[x]);
+}
+
+/* { dg-final { scan-tree-dump-times "PHI <ivtmp" 1 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times "PHI <" 1 "ivopts"} } */
+/* { dg-final { object-size text <= 26 { target arm_thumb2_ok } } } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */
diff --git a/gcc/testsuite/gcc.target/arm/ivopts.c b/gcc/testsuite/gcc.target/arm/ivopts.c
new file mode 100644
index 00000000000..2d67e0a0b7e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/ivopts.c
@@ -0,0 +1,15 @@
+/* { dg-do assemble } */
+/* { dg-options "-Os -mthumb -fdump-tree-ivopts -save-temps" } */
+
+void
+tr5 (short array[], int n)
+{
+  int x;
+  if (n > 0)
+    for (x = 0; x < n; x++)
+      array[x] = 0;
+}
+
+/* { dg-final { scan-tree-dump-times "PHI <" 1 "ivopts"} } */
+/* { dg-final { object-size text <= 20 { target arm_thumb2_ok } } } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */
-- 
2.30.2