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sm-grimoire-bugs - [SM-Grimoire-Bugs] [Bug 15631] New: include -march=native in Sorcery's processor optimization options

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  • From: bugzilla-daemon AT bugs.sourcemage.org
  • To: sm-grimoire-bugs AT lists.ibiblio.org
  • Subject: [SM-Grimoire-Bugs] [Bug 15631] New: include -march=native in Sorcery's processor optimization options
  • Date: 27 Mar 2010 05:45:54 -0000

http://bugs.sourcemage.org/show_bug.cgi?id=15631

Summary: include -march=native in Sorcery's processor
optimization options
Product: Codex
Version: stable grimoire
Platform: x86
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P3
Component: smgl
AssignedTo: sm-grimoire-bugs AT lists.ibiblio.org
ReportedBy: machpizza AT gmail.com


gcc 4.2 introduced -march=native, mentioned here:
http://gcc.gnu.org/gcc-4.2/changes.html

and here:
http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gcc/i386-and-x86_002d64-Options.html#i386-and-x86_002d64-Options

Also, Gentoo recommends -march=native's use:
http://en.gentoo-wiki.com/wiki/Safe_Cflags#-march.3Dnative


In the unlikely circumstance that a SourceMage user doesn't know what
architecture to optimize for, that user could safely use native while still
(fully?) benefiting from processor-specific optimizations.

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