[all-commits] [llvm/llvm-project] 8387cb: AMDGPU: Delete spills of undef values (#119684)
Matt Arsenault via All-commits
all-commits at lists.llvm.org
Mon Dec 16 22:09:00 PST 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 8387cbd0f9056fdf4e3886652e50fe4d94aaad7c
https://github.com/llvm/llvm-project/commit/8387cbd0f9056fdf4e3886652e50fe4d94aaad7c
Author: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: 2024-12-17 (Tue, 17 Dec 2024)
Changed paths:
M llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
M llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
M llvm/test/CodeGen/AMDGPU/sgpr-spill-partially-undef.mir
M llvm/test/CodeGen/AMDGPU/spill-agpr-partially-undef.mir
M llvm/test/CodeGen/AMDGPU/vgpr-spill.mir
Log Message:
-----------
AMDGPU: Delete spills of undef values (#119684)
AMDGPU: Delete spills of undef values
It would be a bit more logical to preserve the undef and do the normal
expansion, but this is less work. This avoids verifier errors in a
future patch which starts deleting liveness from registers after
allocation failures which results in spills of undef values.
https://reviews.llvm.org/D122607
Move where undef sgpr spills are deleted
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