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* [Bug tree-optimization/114281] New: [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 @ 2024-03-08 9:33 pheeck at gcc dot gnu.org 2024-03-08 10:08 ` [Bug tree-optimization/114281] " xry111 at gcc dot gnu.org 2024-03-08 10:17 ` pheeck at gcc dot gnu.org 0 siblings, 2 replies; 3+ messages in thread From: pheeck at gcc dot gnu.org @ 2024-03-08 9:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114281 Bug ID: 114281 Summary: [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: pheeck at gcc dot gnu.org Blocks: 26163 Target Milestone: --- Host: aarch64-gnu-linux, x86_64-linux Target: aarch64-gnu-linux, x86_64-linux Our LNT instance has detected that runtime of benchmark 465.tonto from the SPEC 2006 suite regressed on all of our machines (aarch64 ampere altra, intel skylake, amd zen{2,3,4}) on most configurations by 2-10%. One example: Zen4 -Ofast -flto -march=native (regressed by 10%) https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=992.230.0 I've bisected the example configuration to r14-9193-ga0b1798042d033 (Richard Biener: tree-optimization/114074 - CHREC multiplication and undefined overflow). There have been two other SPEC benchmarks regressions reported that also got bisected to this commit -- pr114269, pr114238. I assume that all of these have the same cause. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163 [Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95) ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/114281] [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 2024-03-08 9:33 [Bug tree-optimization/114281] New: [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 pheeck at gcc dot gnu.org @ 2024-03-08 10:08 ` xry111 at gcc dot gnu.org 2024-03-08 10:17 ` pheeck at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: xry111 at gcc dot gnu.org @ 2024-03-08 10:08 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114281 Xi Ruoyao <xry111 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE CC| |xry111 at gcc dot gnu.org --- Comment #1 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- (In reply to Filip Kastl from comment #0) > Our LNT instance has detected that runtime of benchmark 465.tonto from the > SPEC 2006 suite regressed on all of our machines (aarch64 ampere altra, > intel skylake, amd zen{2,3,4}) on most configurations by 2-10%. > > One example: Zen4 -Ofast -flto -march=native (regressed by 10%) > https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=992.230.0 > > I've bisected the example configuration to r14-9193-ga0b1798042d033 (Richard > Biener: tree-optimization/114074 - CHREC multiplication and undefined > overflow). > > There have been two other SPEC benchmarks regressions reported that also got > bisected to this commit -- pr114269, pr114238. I assume that all of these > have the same cause. Please don't open more tickets unless you are assuming they do *not* have the same cause. *** This bug has been marked as a duplicate of bug 114269 *** ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/114281] [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 2024-03-08 9:33 [Bug tree-optimization/114281] New: [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 pheeck at gcc dot gnu.org 2024-03-08 10:08 ` [Bug tree-optimization/114281] " xry111 at gcc dot gnu.org @ 2024-03-08 10:17 ` pheeck at gcc dot gnu.org 1 sibling, 0 replies; 3+ messages in thread From: pheeck at gcc dot gnu.org @ 2024-03-08 10:17 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114281 --- Comment #2 from Filip Kastl <pheeck at gcc dot gnu.org> --- > Please don't open more tickets unless you are assuming they do *not* have the same cause. Alright, noted. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-03-08 10:17 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-03-08 9:33 [Bug tree-optimization/114281] New: [14 Regression] Multiple 2-10% exec time regressions of 465.tonto since r14-9193-ga0b1798042d033 pheeck at gcc dot gnu.org 2024-03-08 10:08 ` [Bug tree-optimization/114281] " xry111 at gcc dot gnu.org 2024-03-08 10:17 ` pheeck at gcc dot gnu.org
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