llvm-project

cb5445f0 - [RISCV] Lower masked_{u,s}{div,rem} and update TTI (#192543)

[RISCV] Lower masked_{u,s}{div,rem} and update TTI (#192543) The loop vectorizer will soon emit llvm.masked.udiv intrinsics and friends. The vast majority of the time these will be transformed to vp.udiv on RISC-V thanks to tail folding, but if it doesn't tail fold or uses a fixed VF then it will reach instruction selection. This patch lowers the nodes to the masked pseudo for scalable and fixed vectors, and updates the TTI to account for it.