From 5256e11570d033e38f9fb3d5a88d190b19d4b8ce Mon Sep 17 00:00:00 2001
From: Sebastian Pop <sebastian.pop@amd.com>
Date: Thu, 23 Dec 2010 18:52:04 +0000
Subject: [PATCH] Fix PR45552: backport fix for PR45758 to 4.5 branch.

2010-12-23  Sebastian Pop  <sebastian.pop@amd.com>

	Backport from mainline
	Fix PR45758: reset scevs before Graphite.
        2010-09-24  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/45552
	* graphite.c (graphite_initialize): Call scev_reset.

	* gcc.dg/graphite/pr45552.c

From-SVN: r168213
---
 gcc/ChangeLog                           |  9 +++++
 gcc/graphite.c                          |  1 +
 gcc/testsuite/ChangeLog                 |  6 ++++
 gcc/testsuite/gcc.dg/graphite/pr45552.c | 46 +++++++++++++++++++++++++
 4 files changed, 62 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/graphite/pr45552.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ed346ab2c66a..a436a6d92b27 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2010-12-23  Sebastian Pop  <sebastian.pop@amd.com>
+
+	Backport from mainline
+	Fix PR45758: reset scevs before Graphite.
+        2010-09-24  Sebastian Pop  <sebastian.pop@amd.com>
+
+	PR tree-optimization/45552
+	* graphite.c (graphite_initialize): Call scev_reset.
+
 2010-12-23  Sebastian Pop  <sebastian.pop@amd.com>
 
 	PR tree-optimization/43023
diff --git a/gcc/graphite.c b/gcc/graphite.c
index 2933d21571c3..fdbc81a5ee7d 100644
--- a/gcc/graphite.c
+++ b/gcc/graphite.c
@@ -210,6 +210,7 @@ graphite_initialize (void)
       return false;
     }
 
+  scev_reset ();
   recompute_all_dominators ();
   initialize_original_copy_tables ();
   cloog_initialize ();
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7a4a902efb1e..13dc9e1bf151 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2010-12-23  Sebastian Pop  <sebastian.pop@amd.com>
+
+	PR tree-optimization/45552
+	* gcc.dg/graphite/pr45552.c
+
+
 2010-12-23  Sebastian Pop  <sebastian.pop@amd.com>
 
 	PR tree-optimization/43023
diff --git a/gcc/testsuite/gcc.dg/graphite/pr45552.c b/gcc/testsuite/gcc.dg/graphite/pr45552.c
new file mode 100644
index 000000000000..be1d6520009b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/pr45552.c
@@ -0,0 +1,46 @@
+typedef struct
+{
+  double z;
+} Vector;
+typedef struct
+{
+  float *vertex;
+  float *normal;
+} VertexArray;
+typedef struct
+{
+  Vector *vertex;
+  int num_vertex;
+} ObjectSmooth;
+typedef struct
+{
+  int num_cells;
+} State;
+static void *array_from_ObjectSmooth( ObjectSmooth *obj )
+{
+  int i, j;
+  VertexArray *array = (VertexArray *) __builtin_malloc( sizeof( VertexArray ) );
+  array->vertex = (float *) __builtin_malloc( 3*sizeof(float)*obj->num_vertex );
+  array->normal = (float *) __builtin_malloc( 3*sizeof(float)*obj->num_vertex );
+  for (i=0, j=0; i<obj->num_vertex; ++i) {
+    array->normal[j++] = 9;
+    array->vertex[j] = obj->vertex[i].z;
+    array->normal[j++] = 1;
+  }
+}
+static void draw_cell( void )
+{
+  glCallList( array_from_ObjectSmooth( (ObjectSmooth *) __builtin_malloc(10) ));
+}
+static int render( State *st)
+{
+  int b;
+  for (b=0; b<st->num_cells; ++b) {
+    draw_cell();
+    draw_cell();
+  }
+}
+reshape_glcells( int width, int height )
+{
+  render( 0 );
+}
-- 
2.47.2