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)
commit745ea436875f92630c2bbcccfa20a1a89367e96f
treeb3ab5dbb09052312c861368d593a78bb46521304
parentd2f4c77800410b06a089ae778f51fec4d96efc68
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.

llvm-svn: 222382
llvm/lib/CodeGen/RegisterCoalescer.cpp