[llvm-bugs] [Bug 36280] [SLPVectorizer] 2-way parallel vectorization hurts perf on x86

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Feb 27 11:01:52 PST 2018


https://bugs.llvm.org/show_bug.cgi?id=36280

Sanjay Patel <spatel+llvm at rotateright.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|REOPENED                    |RESOLVED
 Fixed By Commit(s)|325515                      |326133

--- Comment #22 from Sanjay Patel <spatel+llvm at rotateright.com> ---
We can close this bug again because we changed the costs for all recent x86
with:
https://reviews.llvm.org/rL326133

I'm still confused how any of this works as seen in:
https://reviews.llvm.org/D43769

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