[PATCH] D53148: [X86][AVX] Add lowerVectorShuffleAsLanePermuteAndPermute for v4f64 shuffles (PR39161)

[Craig Topper via Phabricator via llvm-commits]

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