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[Bug tree-optimization/70251] Wrong code with -O3 -march=skylake-avx512.
- From: "ienkovich at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 17 Mar 2016 10:11:29 +0000
- Subject: [Bug tree-optimization/70251] Wrong code with -O3 -march=skylake-avx512.
- Auto-submitted: auto-generated
- References: <bug-70251-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70251
--- Comment #6 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
(In reply to rguenther@suse.de from comment #5)
> I think that would be an odd transform. But yes, The pattern is probably
> dead now and can as well be removed...
This test proves pattern is not dead and still can be applied for all
non-AVX-512 targets. I don't think all targets make such optimizations so why
not to keep it?