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* [Bug tree-optimization/101339] New: (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 @ 2021-07-06 8:43 pinskia at gcc dot gnu.org 2021-07-06 8:43 ` [Bug tree-optimization/101339] " pinskia at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-07-06 8:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101339 Bug ID: 101339 Summary: (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: pinskia at gcc dot gnu.org Target Milestone: --- Take: int f(int a, int b) { _Bool c = a == b; int t = c; int t1 = -t; return t1 & 1; } ---- CUT --- This is not optimized to just "return (int)(a == b)" at the gimple level ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/101339] (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 2021-07-06 8:43 [Bug tree-optimization/101339] New: (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 pinskia at gcc dot gnu.org @ 2021-07-06 8:43 ` pinskia at gcc dot gnu.org 2021-07-06 9:27 ` rguenth at gcc dot gnu.org 2023-05-01 20:34 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-07-06 8:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101339 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Last reconfirmed| |2021-07-06 Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org Status|UNCONFIRMED |ASSIGNED --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Mine. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/101339] (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 2021-07-06 8:43 [Bug tree-optimization/101339] New: (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 pinskia at gcc dot gnu.org 2021-07-06 8:43 ` [Bug tree-optimization/101339] " pinskia at gcc dot gnu.org @ 2021-07-06 9:27 ` rguenth at gcc dot gnu.org 2023-05-01 20:34 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-07-06 9:27 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101339 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- And int f(int a, int b) { _Bool c = a == b; int t = c; int t1 = t + 1; return t1 & 1; } is not optimized to return (int)a != b either (for any odd add). Addition of even adds is handled though. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/101339] (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 2021-07-06 8:43 [Bug tree-optimization/101339] New: (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 pinskia at gcc dot gnu.org 2021-07-06 8:43 ` [Bug tree-optimization/101339] " pinskia at gcc dot gnu.org 2021-07-06 9:27 ` rguenth at gcc dot gnu.org @ 2023-05-01 20:34 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-05-01 20:34 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101339 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|pinskia at gcc dot gnu.org |unassigned at gcc dot gnu.org Status|ASSIGNED |NEW --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- comment #0 was fixed with r13-793-g8fb94fc6097c . comment #1 is still not fixed and I am not going to work on that one. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-05-01 20:34 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-07-06 8:43 [Bug tree-optimization/101339] New: (bit_and (negate (convert thurth_value@1)) integer_onep) is not optimized to just @1 pinskia at gcc dot gnu.org 2021-07-06 8:43 ` [Bug tree-optimization/101339] " pinskia at gcc dot gnu.org 2021-07-06 9:27 ` rguenth at gcc dot gnu.org 2023-05-01 20:34 ` pinskia at gcc dot gnu.org
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