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RegisterCoalescer: Improve debug messages
authorMatthias Braun <matze@braunis.de>
Wed, 19 Nov 2014 19:46:17 +0000 (19:46 +0000)
committerMatthias Braun <matze@braunis.de>
Wed, 19 Nov 2014 19:46:17 +0000 (19:46 +0000)
commit6e0f244d1f5c77a387d6ea78afbf6b7ffcde1a29
tree6280685e75458e1f06167b2f8433bcb8f14238db
parentf5522a6b68e3bd337d969beee49654eff9ba8ff5
RegisterCoalescer: Improve debug messages

- Show "Considering..." message after flipping so you actually see the final
  destination vreg as destination.
- Add a message on final join, so you can grep for "Success" messages to obtain
  a list of which register got merged with which.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222382 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/RegisterCoalescer.cpp