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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/60879] New: Wrong decision in decide_alg Date: Fri, 18 Apr 2014 00:33:00 -0000 [thread overview] Message-ID: <bug-60879-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60879 Bug ID: 60879 Summary: Wrong decision in decide_alg Product: gcc Version: 4.10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: ubizjak at gmail dot com decide_alg has /* Very tiny blocks are best handled via the loop, REP is expensive to setup. */ else if (expected_size != -1 && expected_size < 4) return loop_1_byte; We use 1-byte loop on fixed size 1, 2 and 3. We should simply unroll loop.
next reply other threads:[~2014-04-18 0:33 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-04-18 0:33 hjl.tools at gmail dot com [this message] 2014-04-18 7:14 ` [Bug target/60879] Wrong decision in decide_alg in i386.c jakub at gcc dot gnu.org 2014-04-18 15:59 ` hjl.tools at gmail dot com 2021-08-28 19:02 ` pinskia at gcc dot gnu.org
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