[all-commits] [llvm/llvm-project] e69f8b: [RISCV][NFC] Add test case for SLP reduction vecto...
Luke Lau via All-commits
all-commits at lists.llvm.org
Tue Mar 21 08:58:07 PDT 2023
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: e69f8bac42e5c3e636a1b06c08fc2739ac1d9b36
https://github.com/llvm/llvm-project/commit/e69f8bac42e5c3e636a1b06c08fc2739ac1d9b36
Author: Luke Lau <luke at igalia.com>
Date: 2023-03-21 (Tue, 21 Mar 2023)
Changed paths:
M llvm/test/Transforms/SLPVectorizer/RISCV/reductions.ll
Log Message:
-----------
[RISCV][NFC] Add test case for SLP reduction vectorization failure
Horizontal reductions still occur on RISC-V, despite the maximum SLP VF
reported back by TTI being 1, to disable SLP.
This can cause the cost model to think it can vectorize a gather into
smaller, widened loads, when it will actually fail to do so.
This should ultimately be fixed whenever SLP is re-enabled for RISC-V at
some point.
Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D146529
More information about the All-commits
mailing list