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.
(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 ***
> Please don't open more tickets unless you are assuming they do *not* have the same cause. Alright, noted.