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[Bug target/70566] [4.9/5/6 Regression] Bad ARM code generated for evaluating unsigned int bitfield value
- From: "ktkachov at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 07 Apr 2016 09:01:01 +0000
- Subject: [Bug target/70566] [4.9/5/6 Regression] Bad ARM code generated for evaluating unsigned int bitfield value
- Auto-submitted: auto-generated
- References: <bug-70566-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70566
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
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Assignee|unassigned at gcc dot gnu.org |ktkachov at gcc dot gnu.org
--- Comment #4 from ktkachov at gcc dot gnu.org ---
The culprit seems to be the peephole in thumb2.md at line 1539.
Adding -fno-peephole2 gives the correct behaviour.