llvm-project

eca79c38 - [RISCV] Use zext.[b/h/w] instead of th.extu for bitfield extraction

[RISCV] Use zext.[b/h/w] instead of th.extu for bitfield extraction We prefer not to do the extu optimization in https://github.com/llvm/ llvm-project/commit/10b7cd660c73f704ad8610828e80b33c241451df if we can directly use one zext.b/zext.h/zext.w instruction with zba/zbb extension, since we always give preference to standard extension instead of vendor extension.