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[Bug target/27855] [4.5/4.7/4.8 regression] reassociation causes the RA to be confused
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 02 Jul 2012 12:24:08 +0000
- Subject: [Bug target/27855] [4.5/4.7/4.8 regression] reassociation causes the RA to be confused
- Auto-submitted: auto-generated
- References: <bug-27855-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855
Paolo Bonzini <bonzini at gnu dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.6.4 |4.7.2
--- Comment #40 from Paolo Bonzini <bonzini at gnu dot org> 2012-07-02 12:24:08 UTC ---
Would be interesting to look at it again in 4.8 with Richard's new
pressure-aware scheduling. I think there was some other patch that could be
used to enable -fschedule-insns on register-starved machines, so it would be
worthwhile doing a round of SPEC benchmarking with different options, on both
x86-32 and x86-64...