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[Bug target/47556] x86: fails to take advantage of high-byte addressing mode
- 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: Mon, 31 Jan 2011 21:47:44 +0000
- Subject: [Bug target/47556] x86: fails to take advantage of high-byte addressing mode
- Auto-submitted: auto-generated
- References: <bug-47556-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47556
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |i?86-*-*
Component|c |target
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-01-31 21:47:32 UTC ---
Sometimes these are done to avoid a stall due to partial use of the register in
newer processors.