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[Bug target/37488] register allocation spills floats needlessly
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Feb 2009 16:22:33 -0000
- Subject: [Bug target/37488] register allocation spills floats needlessly
- References: <bug-37488-16700@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from bonzini at gnu dot org 2009-02-04 16:22 -------
We get a wrong choice of class
a1 (r59,l0) best FLOAT_REGS, cover FLOAT_REGS
(remember this is with -mfpmath=sse) despite the preferred reload class is
indeed SSE_REGS.
But then, we get the spill even without SSE math.
--
bonzini at gnu dot org changed:
What |Removed |Added
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CC| |vmakarov at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37488