https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77694
kargl at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kargl at gcc dot gnu.org
--- Comment #2 from kargl at gcc dot gnu.org ---
(In reply to Gerhard Steinmetz from comment #0)
> Invalid code with an unknown operator (here .nt. instead of .not.).
> For versions down to at least 4.8, at -Og, -Os, -O1 or higher.
> No ICE with option -fno-frontend-optimize.
>
>
> $ cat z1.f90
> program p
> logical :: x(2), y(2)
> x = .true.
> y = .nt. x
> end
Index: frontend-passes.c
===================================================================
--- frontend-passes.c (revision 240220)
+++ frontend-passes.c (working copy)
@@ -1076,6 +1076,9 @@ optimize_binop_array_assignment (gfc_cod
{
gfc_expr *e;
+ if (!*rhs)
+ return false;
+
e = *rhs;
if (e->expr_type == EXPR_OP)
{
