llvm-project

d793168e - MIPS: Rename MipsMCExpr::MEK_ to Mips::S_

MIPS: Rename MipsMCExpr::MEK_ to Mips::S_ Prepare for removing MipsMCExpr. Adopt the newer naming convention (S_) used by AMDGPU/WebAssembly/VE/M68k/PowerPC/LoongArch/RISCV.