[all-commits] [llvm/llvm-project] bb91b4: [X86] Handle repeated blend mask in combineConcatV...
XinWang10 via All-commits
all-commits at lists.llvm.org
Sun Feb 18 17:24:33 PST 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: bb91b4371975f6aa48ade88076c400ca8c2c0043
https://github.com/llvm/llvm-project/commit/bb91b4371975f6aa48ade88076c400ca8c2c0043
Author: XinWang10 <108658776+XinWang10 at users.noreply.github.com>
Date: 2024-02-19 (Mon, 19 Feb 2024)
Changed paths:
M llvm/lib/Target/X86/X86ISelLowering.cpp
M llvm/test/CodeGen/X86/vector-interleaved-store-i8-stride-8.ll
Log Message:
-----------
[X86] Handle repeated blend mask in combineConcatVectorOps (#82155)
https://github.com/llvm/llvm-project/commit/1d27669e8ad07f8f2 add
support for fold 512-bit concat(blendi(x,y,c0),blendi(z,w,c1)) to
AVX512BW mask select.
But when the type of subvector is v16i16, we need to generate repeated
mask to make the result correct.
The subnode looks like t87: v16i16 = X86ISD::BLENDI t132, t58,
TargetConstant:i8<-86>.
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