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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)
commitdec562c84956d4816b168b1a7bfe7b2703eaaf86
tree0085df3544d7f4509e28d785cc25f8c86c6ba271tree | snapshot
parent9c17dad8f2528ebb9505ab2e549cc25d307d0f2bcommit | 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

llvm-svn: 334817
llvm/lib/Target/AMDGPU/AMDGPUInstructions.td diff | blob | history
llvm/test/CodeGen/AMDGPU/extract-lowbits.ll diff | blob | history
Domain: System / Toolchain;