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[Bug rtl-optimization/52573] [4.6/4.7/4.8 regression] regrename creates overlapping register allocations for output operands
- From: "mikpe at it dot uu.se" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 08 Dec 2012 19:05:47 +0000
- Subject: [Bug rtl-optimization/52573] [4.6/4.7/4.8 regression] regrename creates overlapping register allocations for output operands
- Auto-submitted: auto-generated
- References: <bug-52573-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52573
Mikael Pettersson <mikpe at it dot uu.se> changed:
What |Removed |Added
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CC| |mikpe at it dot uu.se
--- Comment #9 from Mikael Pettersson <mikpe at it dot uu.se> 2012-12-08 19:05:47 UTC ---
(In reply to comment #8)
> The failure disappeared somewhere between r190830 and r191055.
Are you sure about that revision range? I still see the bug with 4.8-20120909,
i.e., r191120. The bug appears to be gone on current trunk however; a
bisection tells me it disappeared with Richard Sandiford's "Replace
mode_for_extraction with new interface" patch in r193605:
http://gcc.gnu.org/ml/gcc-patches/2012-11/msg00260.html
http://gcc.gnu.org/ml/gcc-cvs/2012-11/msg00552.html