{"ast_node_type":"other","tokens":[{"end":169,"kind":"keyword","start":0,"text":"//"}]}
            // Based on the pseudocode at https://github.com/rust-lang/stdarch/blob/1cfbca8b38fd9b4282b2f054f61c6ca69fc7ce29/crates/core_arch/src/x86/avx2.rs#L2319-L2332
            let zero = fx.bcx.ins().iconst(types::I8, 0);