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add codegen test for the move before passing to nocapture, by shared-ref arg #115050

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Merged
merged 1 commit into from
Aug 28, 2023
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add codegen test for the move before passing to nocapture, by shared-ref arg #115050

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22 changes: 22 additions & 0 deletions tests/codegen/move-before-nocapture-ref-arg.rs
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// 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>()
}