https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89579
Bug ID: 89579
Summary: -Wclobbered warning false positive when compiling with
-Og
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: diagnostic, rejects-valid
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: abigail.buccaneer at gmail dot com
Target Milestone: ---
Created attachment 45884
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45884&action=edit
Minimal reproduction
When compiling with `-Wclobbered -Og`, we see false positives from the
-Wclobbered warning. These don't occur with any other optimization level. This
breaks our build under `-Wextra -Werror -Og`.
Attached is a minimal reproduction test case. This bug is present from GCC
5.5.0 to GCC trunk (9.0.1 20190303). GCC 5.4.0 and below are not affected.