[PATCH] D87427: [GlobalISel] Add a `X, Y = G_UNMERGE(G_ZEXT Z)` -> X = G_ZEXT Z; Y = 0 combine

[Quentin Colombet via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGb3afad046301: [GlobalISel] Add a `X, Y = G_UNMERGE(G_ZEXT Z)` -> X = G_ZEXT Z; Y = 0 combine (authored by qcolombet).

Changed prior to commit:
  https://reviews.llvm.org/D87427?vs=291695&id=291753#toc

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87427/new/

https://reviews.llvm.org/D87427

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/combine-unmerge.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/sdiv.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/shl-ext-reduce.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/srem.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/udiv.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/urem.i32.ll

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