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[Bug middle-end/78995] A strange copy error caused by O3 optimization
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 05 Jan 2017 07:41:09 +0000
- Subject: [Bug middle-end/78995] A strange copy error caused by O3 optimization
- Auto-submitted: auto-generated
- References: <bug-78995-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78995
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2017-01-05
Component|c++ |middle-end
Ever confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Does adding -fno-strict-aliasing fix the problem you are seeing?
I am suspecting the code is violating C/C++ aliasing rules.