https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90302
Bug ID: 90302
Summary: Implement __builtin_warning
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: tkoenig at gcc dot gnu.org
Target Milestone: ---
It would be useful to implement a __builtin_warning function
to delay a warning which may be removed later by dead code
elimination. One application could be PR48655, where warnings
are issued about temporary Fortran arrays which are eliminated
by the middle end.
See the discussion at https://gcc.gnu.org/ml/gcc/2019-04/msg00275.html .
(Come to think of it, a __builtin_error function could also be
useful in some contexts).
