[PATCH] D103818: [NFC][X86] lowerVECTOR_SHUFFLE(): drop FIXME about widening to i128 (YMM half) element type
Roman Lebedev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 16 00:25:26 PDT 2021
This revision was automatically updated to reflect the committed changes.
Closed by commit rG308f6a5245a2: [NFC][X86] lowerVECTOR_SHUFFLE(): drop FIXME about widening to i128 (YMM half)… (authored by lebedev.ri).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D103818/new/
https://reviews.llvm.org/D103818
Files:
llvm/lib/Target/X86/X86ISelLowering.cpp
Index: llvm/lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- llvm/lib/Target/X86/X86ISelLowering.cpp
+++ llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -18435,7 +18435,7 @@
// Try to collapse shuffles into using a vector type with fewer elements but
// wider element types. We cap this to not form integers or floating point
- // elements wider than 64 bits, but it might be interesting to form i128
+ // elements wider than 64 bits. It does not seem beneficial to form i128
// integers to handle flipping the low and high halves of AVX 256-bit vectors.
SmallVector<int, 16> WidenedMask;
if (VT.getScalarSizeInBits() < 64 && !Is1BitVector &&
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