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[Bug target/52034] __builtin_copysign optimization suboptimal
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 29 Jan 2012 01:27:53 +0000
- Subject: [Bug target/52034] __builtin_copysign optimization suboptimal
- Auto-submitted: auto-generated
- References: <bug-52034-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52034
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-*-* i?86-*-*
Status|UNCONFIRMED |NEW
Keywords| |missed-optimization, ra
Last reconfirmed| |2012-01-29
Component|tree-optimization |target
Ever Confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-29 01:27:53 UTC ---
Confirmed. This is either the way copysign rtl is done on x86_64 or is a
register allocator issue with the copysign rtl.