------- Comment #2 from rguenth at gcc dot gnu dot org 2009-04-10 18:43 -------
I am testing the following
Index: tree-ssa-sccvn.c
===================================================================
--- tree-ssa-sccvn.c (revision 145876)
+++ tree-ssa-sccvn.c (working copy)
@@ -257,9 +257,10 @@ vn_get_expr_for (tree name)
switch (TREE_CODE_CLASS (gimple_assign_rhs_code (def_stmt)))
{
case tcc_reference:
- if (gimple_assign_rhs_code (def_stmt) == VIEW_CONVERT_EXPR
- || gimple_assign_rhs_code (def_stmt) == REALPART_EXPR
- || gimple_assign_rhs_code (def_stmt) == IMAGPART_EXPR)
+ if ((gimple_assign_rhs_code (def_stmt) == VIEW_CONVERT_EXPR
+ || gimple_assign_rhs_code (def_stmt) == REALPART_EXPR
+ || gimple_assign_rhs_code (def_stmt) == IMAGPART_EXPR)
+ && TREE_CODE (gimple_assign_rhs1 (def_stmt)) == SSA_NAME)
expr = fold_build1 (gimple_assign_rhs_code (def_stmt),
gimple_expr_type (def_stmt),
TREE_OPERAND (gimple_assign_rhs1 (def_stmt), 0));
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39713
