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From: "fjahanian at apple dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/17955] New: Perform associative optimization when it is safe Date: Tue, 12 Oct 2004 20:38:00 -0000 [thread overview] Message-ID: <20041012203848.17955.fjahanian@apple.com> (raw) PR/17892 was filed because gcc-4.0 performs an unsafe optimization of (X*C)*C into X*(C*C). Fix to this PR prevents certain safe transformation; such as X*2.0*2.0->X*4.0 from taking place. This PR is to track this enhancement. -- Summary: Perform associative optimization when it is safe Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: tree-optimization AssignedTo: roger at eyesopen dot com ReportedBy: fjahanian at apple dot com CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: apple-ppc-darwin GCC host triplet: apple-ppc-darwin GCC target triplet: apple-ppc-darwin http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17955
next reply other threads:[~2004-10-12 20:38 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2004-10-12 20:38 fjahanian at apple dot com [this message] 2004-10-13 13:43 ` [Bug tree-optimization/17955] " pinskia at gcc dot gnu dot org 2005-07-26 13:14 ` dberlin at gcc dot gnu dot org
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