[Bug tree-optimization/56223] Integer ABS is not recognized for more complicated pattern
"law at gcc dot gnu.org via Gcc-bugs" <[email protected]>
| Newsgroups | gmane.comp.gcc.bugs |
|---|---|
| Message-ID | <[email protected]/bugzilla/> |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56223
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
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Blocks| |26163
--- Comment #12 from Jeffrey A. Law <law at gcc dot gnu.org> ---
IIRC I think this shows up in non-vectorized spec2017 as well in the quant
routine for x264. We got a meaningful boost in the Ventana V1 design (no
vector) by if-converting that block of code.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2026, 2k17, 2k and 2k6 and
95)