Rafael Espindola cbeb3db8fd Don't use getPhysicalRegisterRegClass in PBQP. The existing checks that the ...

physical register can be allocated in the class of the virtual are sufficient.

I think that the test for virtual registers is more strict than it needs to be,
it should be possible to coalesce two virtual registers the class of one
is a subclass of the other.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108118 91177308-0d34-0410-b5e6-96231b3b80d8

2010-07-12 01:45:38 +00:00

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