llvm-project

44e32ccf - [RISCV] Add regalloc hints for QC_EXTU (#173953)

[RISCV] Add regalloc hints for QC_EXTU (#173953) `ANDI` with a mask gets converted into `QC_EXTU` in certain cases. Add regalloc hints to use the same source and destination register so that we can generate the compressed `QC_C_EXTU` instruction.