From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 10 Oct 2012 17:47:05 +0000 (+0200)
Subject: re PR tree-optimization/54877 (ICE: tree check: expected ssa_name, have real_cst... 
X-Git-Tag: upstream/12.2.0~73659
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2de45fb6ee035764a6c48bc87086be9fcab7aa53;p=platform%2Fupstream%2Fgcc.git

re PR tree-optimization/54877 (ICE: tree check: expected ssa_name, have real_cst in copy_ssa_name_fn, at tree-ssanames.c:335)

	PR tree-optimization/54877
	* tree-vect-loop.c (vect_is_simple_reduction_1): For MINUS_EXPR
	use make_ssa_name instead of copy_ssa_name.

	* gcc.dg/torture/pr54877.c: New test.

From-SVN: r192322
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dfe39b431f4..b2a05a935d8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-10-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/54877
+	* tree-vect-loop.c (vect_is_simple_reduction_1): For MINUS_EXPR
+	use make_ssa_name instead of copy_ssa_name.
+
 2012-10-10  Richard Biener  <rguenther@suse.de>
 
 	* lto-streamer-in.c (lto_input_location_bitpack): Rename to ...
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c2e2f5b8d0e..009aab8a01b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-10-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/54877
+	* gcc.dg/torture/pr54877.c: New test.
+
 2012-10-10  Venkataramanan Kumar  <venkataramanan.kumar@amd.com>
 
 	PR testsuite/53397
diff --git a/gcc/testsuite/gcc.dg/torture/pr54877.c b/gcc/testsuite/gcc.dg/torture/pr54877.c
new file mode 100644
index 00000000000..cee406e50d3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr54877.c
@@ -0,0 +1,23 @@
+/* PR tree-optimization/54877 */
+/* { dg-do run } */
+/* { dg-options "-ffast-math" } */
+
+extern void abort (void);
+
+int
+foo (void)
+{
+  double d;
+  int i;
+  for (i = 0, d = 0; i < 64; i++)
+    d--;
+  return (int) d;
+}
+
+int
+main ()
+{
+  if (foo () != -64)
+    abort ();
+  return 0;
+}
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index 58edfcbe480..6b8ba3f7091 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -2382,7 +2382,7 @@ vect_is_simple_reduction_1 (loop_vec_info loop_info, gimple phi,
   if (orig_code == MINUS_EXPR)
     {
       tree rhs = gimple_assign_rhs2 (def_stmt);
-      tree negrhs = copy_ssa_name (rhs, NULL);
+      tree negrhs = make_ssa_name (TREE_TYPE (rhs), NULL);
       gimple negate_stmt = gimple_build_assign_with_ops (NEGATE_EXPR, negrhs,
 							 rhs, NULL);
       gimple_stmt_iterator gsi = gsi_for_stmt (def_stmt);