Matthias Braun 7511abd5c1 MachineScheduler: Ignore COPYs with undef/dead op in CopyConstrain mutation. ...

There is no problem with the code today, but the fix will avoid a crash
in test/CodeGen/AMDGPU/subreg-coalescer-undef-use.ll once the
DetectDeadLanes pass is added.

llvm-svn: 265351

2016-04-04 21:23:46 +00:00

126 KiB

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