| //@ assembly-output: emit-asm |
| // # zen3 previously exhibited odd vectorization |
| //@ compile-flags: --crate-type=lib -Ctarget-cpu=znver3 -O |
| //@ only-x86_64 |
| //@ ignore-sgx |
| |
| use std::iter; |
| |
| // previously this produced a long chain of |
| // 56: vpextrb $6, %xmm0, %ecx |
| // 57: orb %cl, 22(%rsi) |
| // 58: vpextrb $7, %xmm0, %ecx |
| // 59: orb %cl, 23(%rsi) |
| // [...] |
| |
| // CHECK-LABEL: zip_arrays: |
| #[no_mangle] |
| pub fn zip_arrays(mut a: [u8; 32], b: [u8; 32]) -> [u8; 32] { |
| // CHECK-NOT: vpextrb |
| // CHECK-NOT: orb %cl |
| // CHECK: vorps |
| iter::zip(&mut a, b).for_each(|(a, b)| *a |= b); |
| // CHECK: retq |
| a |
| } |
