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* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code [not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/> @ 2021-08-21 20:01 ` pinskia at gcc dot gnu.org 2022-03-16 13:01 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-08-21 20:01 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |102008 Severity|normal |enhancement Component|tree-optimization |rtl-optimization --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note I think the underlying issue is recorded in PR 102008. Also note aarch64 produces a csel for both case. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102008 [Bug 102008] [12 Regression] no cmov generated for loads next to each other ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code [not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/> 2021-08-21 20:01 ` [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code pinskia at gcc dot gnu.org @ 2022-03-16 13:01 ` rguenth at gcc dot gnu.org 2023-06-07 3:13 ` pinskia at gcc dot gnu.org 2023-06-07 13:21 ` matt at godbolt dot org 3 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-03-16 13:01 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274 Bug 68274 depends on bug 102008, which changed state. Bug 102008 Summary: [12 Regression] no cmov generated for loads next to each other https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102008 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code [not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/> 2021-08-21 20:01 ` [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code pinskia at gcc dot gnu.org 2022-03-16 13:01 ` rguenth at gcc dot gnu.org @ 2023-06-07 3:13 ` pinskia at gcc dot gnu.org 2023-06-07 13:21 ` matt at godbolt dot org 3 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-06-07 3:13 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |13.0 Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fixed in GCC 13 by vrp2 removing the __builtin_unreachable at that point and allowing a later phiopt to do the job. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code [not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2023-06-07 3:13 ` pinskia at gcc dot gnu.org @ 2023-06-07 13:21 ` matt at godbolt dot org 3 siblings, 0 replies; 4+ messages in thread From: matt at godbolt dot org @ 2023-06-07 13:21 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68274 --- Comment #5 from Matt Godbolt <matt at godbolt dot org> --- Amazing: thank you Andrew! ^ permalink raw reply [flat|nested] 4+ messages in thread
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Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-68274-4@http.gcc.gnu.org/bugzilla/>
2021-08-21 20:01 ` [Bug rtl-optimization/68274] __builtin_unreachable pessimizes code pinskia at gcc dot gnu.org
2022-03-16 13:01 ` rguenth at gcc dot gnu.org
2023-06-07 3:13 ` pinskia at gcc dot gnu.org
2023-06-07 13:21 ` matt at godbolt dot org
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