[all-commits] [llvm/llvm-project] f2991b: [AMDGPU] Convert 64-bit sra to 32-bit if shift amt...
LU-JOHN via All-commits
all-commits at lists.llvm.org
Thu Jun 26 11:23:20 PDT 2025
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: f2991bf791091967259d1235604534bcef73612c
https://github.com/llvm/llvm-project/commit/f2991bf791091967259d1235604534bcef73612c
Author: LU-JOHN <John.Lu at amd.com>
Date: 2025-06-26 (Thu, 26 Jun 2025)
Changed paths:
M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
M llvm/test/CodeGen/AMDGPU/ashr64_reduce.ll
Log Message:
-----------
[AMDGPU] Convert 64-bit sra to 32-bit if shift amt >= 32 (#144421)
Use KnownBits to convert 64-bit sra to 32-bit sra.
Scaled-down alive2 verification with 16/8-bit types:
https://alive2.llvm.org/ce/z/LamASk
---------
Signed-off-by: John Lu <John.Lu at amd.com>
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