[llvm-bugs] [Bug 16941] LLVM has performance regression between r173893 and r173901

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Jun 16 02:52:00 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=16941

Simon Pilgrim <llvm-dev at redking.me.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Scalar Optimizations        |Backend: X86
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
                 CC|                            |craig.topper at gmail.com,
                   |                            |llvm-dev at redking.me.uk,
                   |                            |spatel+llvm at rotateright.com

--- Comment #4 from Simon Pilgrim <llvm-dev at redking.me.uk> ---
Resolving old ticket - we've fixed the compare + trunc/sext issues in recent
years, especially when we started expanding movmsk to bitcast <X x i1> to iX in
many cases.

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