c-ada-spec.c (dump_ada_double_name): New case.

[gcc.git] / gcc / tree-ssa-pre.c

diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c
index d91fec2a1361e90e515db83b1fa99e392ebdb451..55295e171e9e48d3538205b066f7c0e9309ac77e 100644 (file)
--- a/gcc/tree-ssa-pre.c
+++ b/gcc/tree-ssa-pre.c
@@ -1,5 +1,5 @@
 /* Full and partial redundancy elimination and code hoisting on SSA GIMPLE.
-   Copyright (C) 2001-2017 Free Software Foundation, Inc.
+   Copyright (C) 2001-2018 Free Software Foundation, Inc.
    Contributed by Daniel Berlin <dan@dberlin.org> and Steven Bosscher
    <stevenb@suse.de>
 
@@ -2697,6 +2697,8 @@ create_expression_by_pieces (basic_block block, pre_expr expr,
        that value numbering saw through.  */
     case NAME:
       folded = PRE_EXPR_NAME (expr);
+      if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (folded))
+       return NULL_TREE;
       if (useless_type_conversion_p (exprtype, TREE_TYPE (folded)))
        return folded;
       break;