// compile-flags: -C no-prepopulate-passes | |
#![feature(core_intrinsics)] | |
#![crate_type = "lib"] | |
// test that `move_val_init` actually avoids big allocas | |
use std::intrinsics::move_val_init; | |
pub struct Big { | |
pub data: [u8; 65536] | |
} | |
// CHECK-LABEL: @test_mvi | |
#[no_mangle] | |
pub unsafe fn test_mvi(target: *mut Big, make_big: fn() -> Big) { | |
// CHECK: call void %make_big(%Big*{{[^%]*}} %target) | |
move_val_init(target, make_big()); | |
} |