Matthias Braun 8445cbd1ca SplitKit: Fix subreg copy related problems ...

Fix two problems related to r298025:
- SplitKit would create duplicate VNIs in some cases leading to crashs
  when hoisting copies.
- VirtRegMap could fail expanding copies at the beginning of a basic
  block.

This fixes http://llvm.org/PR32353

llvm-svn: 298448

2017-03-21 21:58:08 +00:00

18 KiB

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