claim that "st" is from the 80-bit register file.  This causes x87-using inline asm to die with:
claim that "st" is from the 80-bit register file.  This causes x87-using inline
asm to die with:

ScheduleDAG.cpp:269: failed assertion `false && "Couldn't find the register class"'

instead of:
failed assertion `RegMap->getRegClass(VReg) == RC && "Register class of operand and regclass of use don't agree!"'

yay.



git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@42259 91177308-0d34-0410-b5e6-96231b3b80d8

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