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

 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.
 
 2011-05-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

gcc/testsuite/gcc.target/arm/ivopts-2.c

+/* { 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" } } */

gcc/testsuite/gcc.target/arm/ivopts.c

+/* { 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" } } */