https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115641
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
It's the
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -4447,8 +4447,7 @@ simple_operand_p_2 (tree exp)
{
enum tree_code code;
- if (TREE_SIDE_EFFECTS (exp)
- || tree_could_trap_p (exp))
+ if (TREE_SIDE_EFFECTS (exp) || generic_expr_could_trap_p (exp))
return false;
while (CONVERT_EXPR_P (exp))
change. simple_condition_p gets
((short unsigned int) BIT_FIELD_REF <MEM <struct T> [(void *)&f ()], 16, 0> &
65535) != 513
and generic_expr_could_trap_p recurses down to tree_could_trap_p getting
MEM <struct T> [(void *)&f ()]
where we get the base which is "f ()" but DECL_SIZE_UNIT crashes on that.
