https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61750
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |5.0
Known to fail| |4.9.2
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Index: gcc/tree-ssa-forwprop.c
===================================================================
--- gcc/tree-ssa-forwprop.c (revision 217764)
+++ gcc/tree-ssa-forwprop.c (working copy)
@@ -3178,7 +3178,9 @@ simplify_vce (gimple_stmt_iterator *gsi)
&& (INTEGRAL_TYPE_P (TREE_TYPE (def_op))
|| POINTER_TYPE_P (TREE_TYPE (def_op)))
&& (TYPE_PRECISION (TREE_TYPE (op))
- == TYPE_PRECISION (TREE_TYPE (def_op))))
+ == TYPE_PRECISION (TREE_TYPE (def_op)))
+ && (TYPE_SIZE (TREE_TYPE (op))
+ == TYPE_SIZE (TREE_TYPE (def_op))))
{
TREE_OPERAND (gimple_assign_rhs1 (stmt), 0) = def_op;
update_stmt (stmt);
fixes it, went in via the match-and-simplify merge to trunk.
