llvm-project

afa517a3 - [RISCV] Fold SRLIW+SLLI+ADD into SRLIW+SHXADD (#142611)

[RISCV] Fold SRLIW+SLLI+ADD into SRLIW+SHXADD (#142611) This handles RV64 SRLIW, similarly to SRLI. Also fixing the comments for SRLI combines that did not match the code.