llvm-project

4dade90a - Revert "[RISCV] Don't run loop-idiom-vectorize pass in the O0 pipeline. (#156798)"

Revert "[RISCV] Don't run loop-idiom-vectorize pass in the O0 pipeline. (#156798)" This reverts commit c51db9f6f3653859a05a073dab53274510edacff. Getting build bot failures about undefined symbol: llvm::OptimizationLevel::O0.