[all-commits] [llvm/llvm-project] cd7959: [RISCV] Teach lowerScalarInsert to handle scalar v...
Yeting Kuo via All-commits
all-commits at lists.llvm.org
Wed Aug 2 19:53:30 PDT 2023
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: cd7959930443f09403df7a9303634b50163a3d80
https://github.com/llvm/llvm-project/commit/cd7959930443f09403df7a9303634b50163a3d80
Author: Yeting Kuo <yeting.kuo at sifive.com>
Date: 2023-08-03 (Thu, 03 Aug 2023)
Changed paths:
M llvm/lib/Target/RISCV/RISCVISelLowering.cpp
M llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int-vp.ll
Log Message:
-----------
[RISCV] Teach lowerScalarInsert to handle scalar value is the first element of a fixed vector.
D155929 teach lowerScalarInsert to handl start value (extractelement scalable_vector, 0)
and specifically converts fixed extracted vectors to scalable vectors when
lowering vector reduction. It's not enough because there is another way to
create (extractelement fixed_vector, 0) as a start value of lowerScalarInsert
like #64327.
#64327: https://github.com/llvm/llvm-project/issues/64327.
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D156863
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