[all-commits] [llvm/llvm-project] c1b911: [SLP]Do correct signedness analysis for clustered ...
Alexey Bataev via All-commits
all-commits at lists.llvm.org
Wed Oct 2 12:59:26 PDT 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: c1b911c5798654b9b77746901919b86b3f1fe94c
https://github.com/llvm/llvm-project/commit/c1b911c5798654b9b77746901919b86b3f1fe94c
Author: Alexey Bataev <a.bataev at outlook.com>
Date: 2024-10-02 (Wed, 02 Oct 2024)
Changed paths:
M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
M llvm/test/Transforms/SLPVectorizer/X86/subvector-minbitwidth-unsigned-value.ll
Log Message:
-----------
[SLP]Do correct signedness analysis for clustered nodes
Should get the signedness info from the original scalar instructions, if
possible, to correctly generate sext/zext instructions. Also, the
clustered node must be assigned a gather node user info to correctly
estimate its bitwidth/sign.
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