Momchil Velikov b454b04d68 [AArch64] Fix a compiler crash in MachineSink (#67705) ...

There were a couple of issues with maintaining register def/uses held
in `MachineRegisterInfo`:

* when an operand is changed from one register to another, the
corresponding instruction must already be inserted into the function,
or MRI won't be updated

* when traversing the set of all uses of a register, that set must not
change

2023-09-29 09:29:20 +01:00

78 KiB

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