[graphite] ICE in sese_loop_depth, at sese.h

http://gcc.gnu.org/PR45552
https://bugs.gentoo.org/336157

--- gcc/graphite.c
+++ gcc/graphite.c
@@ -210,6 +210,7 @@
       return false;
     }
 
+  scev_reset ();
   recompute_all_dominators ();
   initialize_original_copy_tables ();
   cloog_initialize ();
--- gcc/testsuite/gcc.dg/graphite/pr45552.c
+++ 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 );
+}