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* [Bug tree-optimization/18848] New: PRE creates "a_1 = 0 * 4" but does not fold it. @ 2004-12-05 18:02 kazu at cs dot umass dot edu 2004-12-05 18:14 ` [Bug tree-optimization/18848] " pinskia at gcc dot gnu dot org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: kazu at cs dot umass dot edu @ 2004-12-05 18:02 UTC (permalink / raw) To: gcc-bugs Compile this with -O2. void foo (int *table, unsigned int size) { unsigned int i; for (i = 0; i < size; i++) { if (table[i]) break; } table[i] = 0; } I get: pretmp.2_22 = 0 * 4; -- Summary: PRE creates "a_1 = 0 * 4" but does not fold it. Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P2 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: kazu at cs dot umass dot edu CC: gcc-bugs at gcc dot gnu dot org GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18848 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/18848] PRE creates "a_1 = 0 * 4" but does not fold it. 2004-12-05 18:02 [Bug tree-optimization/18848] New: PRE creates "a_1 = 0 * 4" but does not fold it kazu at cs dot umass dot edu @ 2004-12-05 18:14 ` pinskia at gcc dot gnu dot org 2005-01-31 13:22 ` kazu at cs dot umass dot edu 2005-04-20 2:10 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-12-05 18:14 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-05 18:14 ------- Confirmed. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Keywords| |missed-optimization, TREE Last reconfirmed|0000-00-00 00:00:00 |2004-12-05 18:14:30 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18848 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/18848] PRE creates "a_1 = 0 * 4" but does not fold it. 2004-12-05 18:02 [Bug tree-optimization/18848] New: PRE creates "a_1 = 0 * 4" but does not fold it kazu at cs dot umass dot edu 2004-12-05 18:14 ` [Bug tree-optimization/18848] " pinskia at gcc dot gnu dot org @ 2005-01-31 13:22 ` kazu at cs dot umass dot edu 2005-04-20 2:10 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: kazu at cs dot umass dot edu @ 2005-01-31 13:22 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From kazu at cs dot umass dot edu 2005-01-31 13:22 ------- This has been fixed with Daniel Berlin's recent check-in. -- What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18848 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/18848] PRE creates "a_1 = 0 * 4" but does not fold it. 2004-12-05 18:02 [Bug tree-optimization/18848] New: PRE creates "a_1 = 0 * 4" but does not fold it kazu at cs dot umass dot edu 2004-12-05 18:14 ` [Bug tree-optimization/18848] " pinskia at gcc dot gnu dot org 2005-01-31 13:22 ` kazu at cs dot umass dot edu @ 2005-04-20 2:10 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-04-20 2:10 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |4.0.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18848 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2005-04-20 2:10 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-12-05 18:02 [Bug tree-optimization/18848] New: PRE creates "a_1 = 0 * 4" but does not fold it kazu at cs dot umass dot edu 2004-12-05 18:14 ` [Bug tree-optimization/18848] " pinskia at gcc dot gnu dot org 2005-01-31 13:22 ` kazu at cs dot umass dot edu 2005-04-20 2:10 ` pinskia at gcc dot gnu dot org
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