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[AMDGPU] Recognize x & ~(-1 << y) pattern.
authorRoman Lebedev <lebedev.ri@gmail.com>
Fri, 15 Jun 2018 09:56:45 +0000 (09:56 +0000)
committerRoman Lebedev <lebedev.ri@gmail.com>
Fri, 15 Jun 2018 09:56:45 +0000 (09:56 +0000)
commitf2c20b5ace46473db7be8073a277f57b27099be5
tree1d92765ac5756ef16a3d1dff1242682e9b9f6d79tree | snapshot
parentfc84800456fd417fd4c6482688ccad47abbafee8commit | diff
[AMDGPU] Recognize x & ~(-1 << y) pattern.

Summary: The same pattern as D48010, but this one is IR-canonical as of D47428.

Reviewers: nhaehnle, bogner, tstellar, arsenm

Reviewed By: arsenm

Subscribers: arsenm, kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Tags: #amdgpu

Differential Revision: https://reviews.llvm.org/D48012

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334817 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/AMDGPU/AMDGPUInstructions.td diff | blob | history
test/CodeGen/AMDGPU/extract-lowbits.ll diff | blob | history
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