llvm-project

34b985f6 - [RISCV] Select unsigned bitfield extract for Xqcibm (#143354)

[RISCV] Select unsigned bitfield extract for Xqcibm (#143354) The Xqcibm Bit Manipulation extension has the `qc.extu` instruction that can extract a subset of bits from the source register to the destination register. Unlike the corresponding instructions in XTHeadbb and XAndesPerf which extract the bits between `Msb` and `Lsb`, the `qc.extu` instruction extracts `width` bits from an offset that is determined by the `shamt`.