re PR tree-optimization/82421 ([graphite] ICE: tree check: expected ssa_name,…

re PR tree-optimization/82421 ([graphite] ICE: tree check: expected ssa_name, have integer_cst in get_rename, at graphite-isl-ast-to-gimple.c:1127)

2017-10-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82421
	* gcc.dg/graphite/pr82421.c: New testcase.

From-SVN: r253478

gcc/testsuite/ChangeLog

+2017-10-06  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/82421
+	* gcc.dg/graphite/pr82421.c: New testcase.
+
 2017-10-06  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/82437

gcc/testsuite/gcc.dg/graphite/pr82421.c

+/* { dg-do compile } */
+/* { dg-options "-O -floop-nest-optimize" } */
+
+int pc;
+
+void
+qy (int l9)
+{
+  int tw = 4;
+  int fb[tw];
+
+  while (l9 < 1)
+    {
+      int dr;
+
+      pc = fb[2];
+      for (dr = 0; dr < tw; ++dr)
+	fb[dr] = 0;
+      ++l9;
+    }
+}