Jakob Stoklund Olesen 91fb536a34 Add a MinNumRegs argument to MRI::constrainRegClass(). ...

The function will refuse to use a register class with fewer registers
than MinNumRegs.  This can be used by clients to avoid accidentally
increase register pressure too much.

The default value of MinNumRegs=0 doesn't affect how constrainRegClass()
works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140339 91177308-0d34-0410-b5e6-96231b3b80d8

2011-09-22 21:39:31 +00:00

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