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* [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type [not found] <bug-88387-4@http.gcc.gnu.org/bugzilla/> @ 2021-07-24 10:15 ` pinskia at gcc dot gnu.org 2023-08-05 3:34 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 2+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-07-24 10:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88387 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Component|middle-end |tree-optimization ^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type [not found] <bug-88387-4@http.gcc.gnu.org/bugzilla/> 2021-07-24 10:15 ` [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type pinskia at gcc dot gnu.org @ 2023-08-05 3:34 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 2+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-08-05 3:34 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88387 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Target Milestone|--- |13.0 Status|NEW |RESOLVED --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Starting in GCC 13 we remove the branch fully and assume n >> 222 is always 0. In ethread: Checking profitability of path (backwards): bb:2 (3 insns) bb:0 Control statement insns: 2 Overall: 1 insns Registering killing_def (path_oracle) _1 Checking profitability of path (backwards): [1] Registering jump thread: (0, 2) incoming edge; (2, 4) nocopy; path: 0->2->4 SUCCESS ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-08-05 3:34 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <bug-88387-4@http.gcc.gnu.org/bugzilla/> 2021-07-24 10:15 ` [Bug tree-optimization/88387] Possible code optimization when right shift count >= width of type pinskia at gcc dot gnu.org 2023-08-05 3:34 ` pinskia at gcc dot gnu.org
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