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* [Bug middle-end/23672] New: Fold does not fold (a^b)^a to b @ 2005-09-01 2:27 pinskia at gcc dot gnu dot org 2005-09-17 2:12 ` [Bug middle-end/23672] " pinskia at gcc dot gnu dot org 2005-09-17 2:44 ` dberlin at dberlin dot org 0 siblings, 2 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-01 2:27 UTC (permalink / raw) To: gcc-bugs These two functions should be the same at the tree level but are not: int f(int a, int b) { return (a^b)^a; } int f1(int a, int b) { return b; } --- Another one from LLVM. -- Summary: Fold does not fold (a^b)^a to b Product: gcc Version: 4.1.0 Status: UNCONFIRMED Keywords: missed-optimization, TREE Severity: enhancement Priority: P2 Component: middle-end 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 OtherBugsDependingO 19986 nThis: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23672 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/23672] Fold does not fold (a^b)^a to b 2005-09-01 2:27 [Bug middle-end/23672] New: Fold does not fold (a^b)^a to b pinskia at gcc dot gnu dot org @ 2005-09-17 2:12 ` pinskia at gcc dot gnu dot org 2005-09-17 2:44 ` Daniel Berlin 2005-09-17 2:44 ` dberlin at dberlin dot org 1 sibling, 1 reply; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-17 2:12 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-17 02:12 ------- Confirmed. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Last reconfirmed|0000-00-00 00:00:00 |2005-09-17 02:12:18 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23672 ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bug middle-end/23672] Fold does not fold (a^b)^a to b 2005-09-17 2:12 ` [Bug middle-end/23672] " pinskia at gcc dot gnu dot org @ 2005-09-17 2:44 ` Daniel Berlin 0 siblings, 0 replies; 4+ messages in thread From: Daniel Berlin @ 2005-09-17 2:44 UTC (permalink / raw) To: gcc-bugzilla; +Cc: gcc-bugs On Sat, 2005-09-17 at 02:12 +0000, pinskia at gcc dot gnu dot org wrote: > ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-17 02:12 ------- > Confirmed. > The new reassoc should take care of this ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug middle-end/23672] Fold does not fold (a^b)^a to b 2005-09-01 2:27 [Bug middle-end/23672] New: Fold does not fold (a^b)^a to b pinskia at gcc dot gnu dot org 2005-09-17 2:12 ` [Bug middle-end/23672] " pinskia at gcc dot gnu dot org @ 2005-09-17 2:44 ` dberlin at dberlin dot org 1 sibling, 0 replies; 4+ messages in thread From: dberlin at dberlin dot org @ 2005-09-17 2:44 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From dberlin at gcc dot gnu dot org 2005-09-17 02:44 ------- Subject: Re: Fold does not fold (a^b)^a to b On Sat, 2005-09-17 at 02:12 +0000, pinskia at gcc dot gnu dot org wrote: > ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-17 02:12 ------- > Confirmed. > The new reassoc should take care of this -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23672 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-09-17 2:44 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-09-01 2:27 [Bug middle-end/23672] New: Fold does not fold (a^b)^a to b pinskia at gcc dot gnu dot org 2005-09-17 2:12 ` [Bug middle-end/23672] " pinskia at gcc dot gnu dot org 2005-09-17 2:44 ` Daniel Berlin 2005-09-17 2:44 ` dberlin at dberlin dot org
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