rust/tests/codegen/move-before-nocapture-ref-arg.rs

23 lines
519 B
Rust

// Verify that move before the call of the function with noalias, nocapture, readonly.
// #107436
//@ compile-flags: -O
//@ min-llvm-version: 17
#![crate_type = "lib"]
#[repr(C)]
pub struct ThreeSlices<'a>(&'a [u32], &'a [u32], &'a [u32]);
#[no_mangle]
pub fn sum_slices(val: ThreeSlices) -> u32 {
// CHECK-NOT: memcpy
let val = val;
sum(&val)
}
#[no_mangle]
#[inline(never)]
pub fn sum(val: &ThreeSlices) -> u32 {
val.0.iter().sum::<u32>() + val.1.iter().sum::<u32>() + val.2.iter().sum::<u32>()
}