Matt Arsenault 3c98cdd218 RegAllocFast: Do not allocate registers for undef uses ...

Do not actually allocate a register for an undef use. Previously we we
would create unnecessary reload instruction for undef uses where the
register wasn't live.

Patch by Matthias Braun

llvm-svn: 356501

2019-03-19 19:16:04 +00:00

41 KiB

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