[PATCH] D134183: [RegCoalescer] Replace undef subreg copies used in early-clobber def insts with IMPLICIT_DEFs

[Abinav Puthan Purayil via Phabricator via llvm-commits]

abinavpp updated this revision to Diff 461839.
abinavpp added a comment.

Rebase on f09e3ad88a19 <https://reviews.llvm.org/rGf09e3ad88a194fb2e8e47e056262b4bc1403df6b>


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134183/new/

https://reviews.llvm.org/D134183

Files:
  llvm/lib/CodeGen/RegisterCoalescer.cpp
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_buffer.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_raw_buffer.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_struct_buffer.ll
  llvm/test/CodeGen/AMDGPU/coalescer-early-clobber-undef-subreg.mir
  llvm/test/CodeGen/AMDGPU/mad_64_32.ll
  llvm/test/CodeGen/AMDGPU/mad_u64_u32.ll
  llvm/test/CodeGen/Thumb2/mve-laneinterleaving-cost.ll
  llvm/test/CodeGen/Thumb2/mve-satmul-loops.ll
  llvm/test/CodeGen/Thumb2/mve-vmull-splat.ll

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