re PR debug/63328 (c-c++-common/gomp/pr60823-3.c test fails with -fcompare-debug)

	PR debug/63328
	* omp-low.c (ipa_simd_modify_stmt_ops): For debug stmts
	insert a debug source bind stmt setting DEBUG_EXPR_DECL
	instead of a normal gimple assignment stmt.

	* c-c++-common/gomp/pr63328.c: New test.

From-SVN: r215454

gcc/ChangeLog

+2014-09-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/63328
+	* omp-low.c (ipa_simd_modify_stmt_ops): For debug stmts
+	insert a debug source bind stmt setting DEBUG_EXPR_DECL
+	instead of a normal gimple assignment stmt.
+
 2014-09-22  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	* config/bfin/bfin.md: Fix use of constraints in define_split.

gcc/omp-low.c

@@ -11717,9 +11717,22 @@ ipa_simd_modify_stmt_ops (tree *tp, int *walk_subtrees, void *data)
   if (tp != orig_tp)
     {
       repl = build_fold_addr_expr (repl);
-      gimple stmt
-	= gimple_build_assign (make_ssa_name (TREE_TYPE (repl), NULL), repl);
-      repl = gimple_assign_lhs (stmt);
+      gimple stmt;
+      if (is_gimple_debug (info->stmt))
+	{
+	  tree vexpr = make_node (DEBUG_EXPR_DECL);
+	  stmt = gimple_build_debug_source_bind (vexpr, repl, NULL);
+	  DECL_ARTIFICIAL (vexpr) = 1;
+	  TREE_TYPE (vexpr) = TREE_TYPE (repl);
+	  DECL_MODE (vexpr) = TYPE_MODE (TREE_TYPE (repl));
+	  repl = vexpr;
+	}
+      else
+	{
+	  stmt = gimple_build_assign (make_ssa_name (TREE_TYPE (repl),
+						     NULL), repl);
+	  repl = gimple_assign_lhs (stmt);
+	}
       gimple_stmt_iterator gsi = gsi_for_stmt (info->stmt);
       gsi_insert_before (&gsi, stmt, GSI_SAME_STMT);
       *orig_tp = repl;

gcc/testsuite/ChangeLog

+2014-09-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/63328
+	* c-c++-common/gomp/pr63328.c: New test.
+
 2014-09-22  Martin Liska  <mliska@suse.cz>
 
 	PR lto/63270

gcc/testsuite/c-c++-common/gomp/pr63328.c

+/* PR debug/63328 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fopenmp-simd -fno-strict-aliasing -fcompare-debug" } */
+
+#include "pr60823-3.c"