[PATCH] D115278: Check subrange liveness at rematerialization

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: llvm/lib/CodeGen/LiveRangeEdit.cpp:146-148
+        LM &= ~SR.LaneMask;
+        if (LM.none())
+          break;
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This isn't required?


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Comment at: llvm/test/CodeGen/AMDGPU/remat-dead-subreg.mir:3
+# RUN: llc -march=amdgcn -start-before=greedy -stop-after=virtregrewriter -stress-regalloc=3 -verify-machineinstrs -o - %s | FileCheck -check-prefix=GCN %s
+
+---
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Should include a brief description


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115278/new/

https://reviews.llvm.org/D115278