[all-commits] [llvm/llvm-project] 910d2d: [SLP]Fix PR88103: consider the sign of the compare...
Alexey Bataev via All-commits
all-commits at lists.llvm.org
Tue Apr 9 10:55:18 PDT 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 910d2de357de8a490cac3ecbd27196356fe1f2a3
https://github.com/llvm/llvm-project/commit/910d2de357de8a490cac3ecbd27196356fe1f2a3
Author: Alexey Bataev <a.bataev at outlook.com>
Date: 2024-04-09 (Tue, 09 Apr 2024)
Changed paths:
M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
M llvm/test/Transforms/SLPVectorizer/X86/zext-incoming-for-neg-icmp.ll
Log Message:
-----------
[SLP]Fix PR88103: consider the sign of the compare for non-negative operands.
Need to improve detection of number of bits, required for the operand,
before doing a reduction. If the instruction is incoming operand of the
signed compare, need to consider adding an extra bit for signedness.
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