[PATCH] D46150: AMDGPU/GlobalISel: Implement select() for G_IMPLICIT_DEF

[Tom Stellard via Phabricator via llvm-commits]

tstellar added a comment.

In https://reviews.llvm.org/D46150#1082433, @nhaehnle wrote:

> Is the default implementation really unable to do this? That seems a bit silly...


The default implementation doesn't know how to constrain register classes for generic instructions, which is why targets have to select these generic opcodes.  The original version of my patch was not doing that, but it is now.


Repository:
  rL LLVM

https://reviews.llvm.org/D46150