[PATCH] D53148: [X86][AVX] Add lowerVectorShuffleAsLanePermuteAndPermute for v4f64 shuffles (PR39161)
Craig Topper via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Oct 12 12:53:48 PDT 2018
craig.topper added inline comments.
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Comment at: lib/Target/X86/X86ISelLowering.cpp:13445
+ SmallVector<int, 4> SrcLaneMask(NumLanes, SM_SentinelUndef);
+ SmallVector<int, 4> LaneMask(NumElts, SM_SentinelUndef);
+ SmallVector<int, 16> PermMask(NumElts, SM_SentinelUndef);
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Why do LaneMask and PermMask have the same actual size, but different "small" size?
Repository:
rL LLVM
https://reviews.llvm.org/D53148
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