ARM: Fix more fast-isel verifier failures.
Teach the generic instruction selection helper functions to constrain
the register classes of their input operands. For non-physical register
references, the generic code needs to be careful not to mess that up
when replacing references to result registers. As the comment indicates
for MachineRegisterInfo::replaceRegWith(), it's important to call
constrainRegClass() first.
rdar://
12594152
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188593
91177308-0d34-0410-b5e6-
96231b3b80d8
projects / oota-llvm.git / commit