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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/19055] New: Minor bit optimization with or and xor Date: Fri, 17 Dec 2004 14:16:00 -0000 [thread overview] Message-ID: <20041217141606.19055.pinskia@gcc.gnu.org> (raw) The following two functions should produce the same assembly int f(int a) { a|=1; a^=1; return a; } int f1(int a) { return a&~1; } -- Summary: Minor bit optimization with or and xor Product: gcc Version: 4.0.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P2 Component: rtl-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pinskia at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC target triplet: powerpc-darwin http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19055
next reply other threads:[~2004-12-17 14:16 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2004-12-17 14:16 pinskia at gcc dot gnu dot org [this message] 2004-12-17 14:23 ` [Bug rtl-optimization/19055] " segher at kernel dot crashing dot org 2004-12-17 14:26 ` pinskia at gcc dot gnu dot org 2004-12-19 14:02 ` pinskia at gcc dot gnu dot org 2004-12-22 7:42 ` pinskia at gcc dot gnu dot org 2005-02-22 19:02 ` [Bug tree-optimization/19055] " pinskia at gcc dot gnu dot org 2005-07-05 0:02 ` pinskia at gcc dot gnu dot org 2005-07-05 13:53 ` pinskia at gcc dot gnu dot org 2005-07-21 19:34 ` cvs-commit at gcc dot gnu dot org 2005-07-21 19:34 ` pinskia at gcc dot gnu dot org
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