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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/55583] Extended shift instruction on x86-64 is not used, producing unoptimal code Date: Mon, 01 Apr 2013 13:45:00 -0000 [thread overview] Message-ID: <bug-55583-4-PSkbzFEE8M@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-55583-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55583 --- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> 2013-04-01 13:45:33 UTC --- Created attachment 29764 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29764 Patch from comment #4 I apparently forgot to attach a patch when I posted comment #4. This is just to show the idea, it doesn't handle many cases, and the length_immediate value was randomly filled just to let it compile.
next prev parent reply other threads:[~2013-04-01 13:45 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-12-04 0:06 [Bug rtl-optimization/55583] New: " mtkilpailut at torni dot org 2012-12-04 0:08 ` [Bug rtl-optimization/55583] " mtkilpailut at torni dot org 2012-12-04 0:21 ` hjl.tools at gmail dot com 2012-12-04 1:04 ` mikko.markus.torni at iki dot fi 2012-12-04 10:16 ` [Bug target/55583] " glisse at gcc dot gnu.org 2013-04-01 13:45 ` glisse at gcc dot gnu.org [this message] 2014-06-07 9:12 ` glisse at gcc dot gnu.org 2022-05-30 2:23 ` crazylht at gmail dot com 2022-11-01 3:24 ` cvs-commit at gcc dot gnu.org
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