[Bug middle-end/107718] clang optimizes TSVC s317 a lot better

2022-11-21 Thread marxin at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107718 Martin Liška changed: What|Removed |Added Status|UNCONFIRMED |NEW CC|

[Bug middle-end/107718] clang optimizes TSVC s317 a lot better

2022-11-17 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107718 --- Comment #1 from Richard Biener --- it seems to split the reduction, performing many 0.99 ** n in parallel which is stupid itself as those compute the same result ... I'd say the benchmark is stupid and with -ffast-math we could optimize it