[all-commits] [llvm/llvm-project] 92e0c0: [DAG] Restrict insert_subvector undef, splat_veect...
Philip Reames via All-commits
all-commits at lists.llvm.org
Fri Aug 18 12:44:30 PDT 2023
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 92e0c0dc1a4f015e05a54094a4a94ddb0c5d9112
https://github.com/llvm/llvm-project/commit/92e0c0dc1a4f015e05a54094a4a94ddb0c5d9112
Author: Philip Reames <preames at rivosinc.com>
Date: 2023-08-18 (Fri, 18 Aug 2023)
Changed paths:
M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
M llvm/test/CodeGen/RISCV/rvv/splats-with-mixed-vl.ll
Log Message:
-----------
[DAG] Restrict insert_subvector undef, splat_veector, dontcare transform
On the extract_subvector side, we already have the restriction. With D158201, we'd start getting unprofitable splat combines unless we add the same one on the extract_subvector side.
Differential Revision: https://reviews.llvm.org/D158202
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