[PATCH] D12465: AMDGPU/SI: Add verifier check for exec reads

[Matt Arsenault via llvm-commits]

arsenm added a comment.

Also depends on these to fix another place this errors: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20150817/295315.html


http://reviews.llvm.org/D12465