[PATCH] D87744: [RegisterCoalescer] passs Undefs to extendToIndices()

[Matt Arsenault via Phabricator via llvm-commits]

arsenm accepted this revision.
arsenm added a comment.
This revision is now accepted and ready to land.

LGTM with test converted to generated checks



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Comment at: llvm/test/CodeGen/AMDGPU/coalescer-removepartial-extend-undef-subrange.mir:1
+# RUN: llc -march=amdgcn -run-pass simple-register-coalescing -verify-machineinstrs -o - %s | FileCheck %s
+#
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Add a -mcpu=gfx900 or some other target


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Comment at: llvm/test/CodeGen/AMDGPU/coalescer-removepartial-extend-undef-subrange.mir:3-5
+# CHECK-LABEL: bb.1:
+# CHECK-NOT:     COPY
+# CHECK-LABEL: bb.2:
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These checks are really weak, I would rather just generate these


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D87744/new/

https://reviews.llvm.org/D87744