re PR tree-optimization/49712 (internal compiler error: in gen_lsm_tmp_name, at…

re PR tree-optimization/49712 (internal compiler error: in gen_lsm_tmp_name, at tree-ssa-loop-im.c:2048)

	PR tree-optimization/49712
	* tree-ssa-loop-im.c (gen_lsm_tmp_name): Handle TARGET_MEM_REF.

	* gcc.c-torture/execute/pr49712.c: New test.

From-SVN: r176195

gcc/ChangeLog

+2011-07-12  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/49712
+	* tree-ssa-loop-im.c (gen_lsm_tmp_name): Handle TARGET_MEM_REF.
+
 2011-07-11  Bernd Schmidt  <bernds@codesourcery.com>
 
 	* genautomata.c (add_arc): Return void.  All callers changed.

gcc/testsuite/ChangeLog

+2011-07-12  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/49712
+	* gcc.c-torture/execute/pr49712.c: New test.
+
 2011-07-11  Jason Merrill  <jason@redhat.com>
 
 	PR c++/44609

gcc/testsuite/gcc.c-torture/execute/pr49712.c

+/* PR tree-optimization/49712 */
+
+int a[2], b, c, d, e;
+
+void
+foo (int x, int y)
+{
+}
+
+int
+bar (void)
+{
+  int i;
+  for (; d <= 0; d = 1)
+    for (i = 0; i < 4; i++)
+      for (e = 0; e; e = 1)
+	;
+  return 0;
+}
+
+int
+main ()
+{
+  for (b = 0; b < 2; b++)
+    while (c)
+      foo (a[b] = 0, bar ());
+  return 0;
+}

gcc/tree-ssa-loop-im.c

@@ -1982,6 +1982,7 @@ gen_lsm_tmp_name (tree ref)
   switch (TREE_CODE (ref))
     {
     case MEM_REF:
+    case TARGET_MEM_REF:
       gen_lsm_tmp_name (TREE_OPERAND (ref, 0));
       lsm_tmp_name_add ("_");
       break;