[PATCH] D38128: Handle COPYs of physregs better (regalloc hints)

[Tom Stellard via Phabricator via llvm-commits]

tstellar added a comment.

Unfortunately, all the AMDGPU testcases that change from using vcc to a regular sgpr are regressions.  Do you have any idea why this is happening?


https://reviews.llvm.org/D38128