[Bug rtl-optimization/52573] [4.6/4.7/4.8 regression] regrename creates overlapping register allocations for output operands

[mikpe at it dot uu.se]

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