[PR45098,8/10]

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

	PR target/45098
	* gcc.target/arm/ivopts-3.c: New test.
	* gcc.target/arm/ivopts-4.c: New test.
	* gcc.target/arm/ivopts-5.c: New test.
	* gcc.dg/tree-ssa/ivopt_infer_2.c: Adapt test.

Index: gcc/testsuite/gcc.target/arm/ivopts-3.c
===================================================================
--- /dev/null (new file)
+++ gcc/testsuite/gcc.target/arm/ivopts-3.c (revision 0)
@@ -0,0 +1,20 @@ 
+/* { dg-do assemble } */
+/* { dg-options "-Os -mthumb -fdump-tree-ivopts -save-temps" } */
+
+extern unsigned int foo2 (short*) __attribute__((pure));
+
+unsigned int
+tr3 (short array[], unsigned int n)
+{
+  unsigned sum = 0;
+  unsigned int x;
+  for (x = 0; x < n; x++)
+    sum += foo2 (&array[x]);
+  return sum;
+}
+
+/* { dg-final { scan-tree-dump-times "PHI <ivtmp" 1 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times "PHI <x" 0 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times ", x" 0 "ivopts"} } */
+/* { dg-final { object-size text <= 30 { target arm_thumb2_ok } } } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */
Index: gcc/testsuite/gcc.target/arm/ivopts-4.c
===================================================================
--- /dev/null (new file)
+++ gcc/testsuite/gcc.target/arm/ivopts-4.c (revision 0)
@@ -0,0 +1,21 @@ 
+/* { dg-do assemble } */
+/* { dg-options "-mthumb -Os -fdump-tree-ivopts -save-temps" } */
+
+extern unsigned int foo (int*) __attribute__((pure));
+
+unsigned int
+tr2 (int array[], int n)
+{
+  unsigned int sum = 0;
+  int x;
+  if (n > 0)
+    for (x = 0; x < n; x++)
+      sum += foo (&array[x]);
+  return sum;
+}
+
+/* { dg-final { scan-tree-dump-times "PHI <ivtmp" 1 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times "PHI <x" 0 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times ", x" 0 "ivopts"} } */
+/* { dg-final { object-size text <= 36 { target arm_thumb2_ok } } } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */
Index: gcc/testsuite/gcc.target/arm/ivopts-5.c
===================================================================
--- /dev/null (new file)
+++ gcc/testsuite/gcc.target/arm/ivopts-5.c (revision 0)
@@ -0,0 +1,20 @@ 
+/* { dg-do assemble } */
+/* { dg-options "-Os -mthumb -fdump-tree-ivopts -save-temps" } */
+
+extern unsigned int foo (int*) __attribute__((pure));
+
+unsigned int
+tr1 (int array[], unsigned int n)
+{
+  unsigned int sum = 0;
+  unsigned int x;
+  for (x = 0; x < n; x++)
+    sum += foo (&array[x]);
+  return sum;
+}
+
+/* { dg-final { scan-tree-dump-times "PHI <ivtmp" 1 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times "PHI <x" 0 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times ", x" 0 "ivopts"} } */
+/* { dg-final { object-size text <= 30 { target arm_thumb2_ok } } } */
+/* { dg-final { cleanup-tree-dump "ivopts" } } */
Index: gcc/testsuite/gcc.dg/tree-ssa/ivopt_infer_2.c
===================================================================
--- gcc/testsuite/gcc.dg/tree-ssa/ivopt_infer_2.c	(revision 173380)
+++ gcc/testsuite/gcc.dg/tree-ssa/ivopt_infer_2.c	(working copy)
@@ -7,7 +7,8 @@ 
 
 extern int a[];
 
-/* Can not infer loop iteration from array -- exit test can not be replaced.  */
+/* Can infer loop iteration from nonwrapping pointer arithmetic.
+   exit test can be replaced.  */
 void foo (int i_width, TYPE dst, TYPE src1, TYPE src2)
 {
       TYPE dstn= dst + i_width;
@@ -21,5 +22,5 @@  void foo (int i_width, TYPE dst, TYPE sr
        }
 }
 
-/* { dg-final { scan-tree-dump-times "Replacing" 0 "ivopts"} } */
+/* { dg-final { scan-tree-dump-times "Replacing" 1 "ivopts"} } */
 /* { dg-final { cleanup-tree-dump "ivopts" } } */