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[Bug driver/78772] New: -fstrict-aliasing should turn on Wstrict-aliasing automaticly
- From: "ma.jiang at zte dot com.cn" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 12 Dec 2016 09:44:27 +0000
- Subject: [Bug driver/78772] New: -fstrict-aliasing should turn on Wstrict-aliasing automaticly
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78772
Bug ID: 78772
Summary: -fstrict-aliasing should turn on Wstrict-aliasing
automaticly
Product: gcc
Version: 6.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
Assignee: unassigned at gcc dot gnu.org
Reporter: ma.jiang at zte dot com.cn
Target Milestone: ---
Hi all,
"-fstrict-aliasing" which is turned on at O2 level, May create wrong codes.
But, GCC does not give a warning for it by default. IMO, we should turn on
Wstrict-aliasing when strict-aliasing is enabled.