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* [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or
@ 2021-02-03 23:53 gabravier at gmail dot com
2021-07-28 21:24 ` [Bug tree-optimization/98966] " pinskia at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: gabravier at gmail dot com @ 2021-02-03 23:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98966
Bug ID: 98966
Summary: Failure to optimize conditional or with 1 based on
boolean condition to direct or
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: gabravier at gmail dot com
Target Milestone: ---
int f(int m, bool c)
{
return c ? (m | 1) : m;
}
This can be optimized to `return m | c;`. This transformation is done by LLVM,
but not by GCC.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/98966] Failure to optimize conditional or with 1 based on boolean condition to direct or 2021-02-03 23:53 [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or gabravier at gmail dot com @ 2021-07-28 21:24 ` pinskia at gcc dot gnu.org 2022-11-26 18:53 ` pinskia at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-07-28 21:24 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98966 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Last reconfirmed| |2021-07-28 Status|UNCONFIRMED |NEW Severity|normal |enhancement --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98966] Failure to optimize conditional or with 1 based on boolean condition to direct or 2021-02-03 23:53 [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or gabravier at gmail dot com 2021-07-28 21:24 ` [Bug tree-optimization/98966] " pinskia at gcc dot gnu.org @ 2022-11-26 18:53 ` pinskia at gcc dot gnu.org 2022-11-26 19:00 ` pinskia at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-11-26 18:53 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98966 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- A ? (b | 1) : b -> b | (convert)A Or more generic: (for op (...) (simplify (cond @0 (op @1 integer_one_cst) @1) (op @1 (convert @0))) I think I have patches ... ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98966] Failure to optimize conditional or with 1 based on boolean condition to direct or 2021-02-03 23:53 [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or gabravier at gmail dot com 2021-07-28 21:24 ` [Bug tree-optimization/98966] " pinskia at gcc dot gnu.org 2022-11-26 18:53 ` pinskia at gcc dot gnu.org @ 2022-11-26 19:00 ` pinskia at gcc dot gnu.org 2023-02-18 2:30 ` gabravier at gmail dot com 2023-02-18 2:36 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-11-26 19:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98966 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98966] Failure to optimize conditional or with 1 based on boolean condition to direct or 2021-02-03 23:53 [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or gabravier at gmail dot com ` (2 preceding siblings ...) 2022-11-26 19:00 ` pinskia at gcc dot gnu.org @ 2023-02-18 2:30 ` gabravier at gmail dot com 2023-02-18 2:36 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: gabravier at gmail dot com @ 2023-02-18 2:30 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98966 --- Comment #3 from Gabriel Ravier <gabravier at gmail dot com> --- Appears to be fixed on trunk. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/98966] Failure to optimize conditional or with 1 based on boolean condition to direct or 2021-02-03 23:53 [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or gabravier at gmail dot com ` (3 preceding siblings ...) 2023-02-18 2:30 ` gabravier at gmail dot com @ 2023-02-18 2:36 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-02-18 2:36 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98966 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |13.0 --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fixed by r13-4459-g6508d5e5a1a8c0 . ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-02-18 2:36 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-02-03 23:53 [Bug tree-optimization/98966] New: Failure to optimize conditional or with 1 based on boolean condition to direct or gabravier at gmail dot com 2021-07-28 21:24 ` [Bug tree-optimization/98966] " pinskia at gcc dot gnu.org 2022-11-26 18:53 ` pinskia at gcc dot gnu.org 2022-11-26 19:00 ` pinskia at gcc dot gnu.org 2023-02-18 2:30 ` gabravier at gmail dot com 2023-02-18 2:36 ` pinskia at gcc dot gnu.org
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