blob: 0b796754d1d861f8c15b6387d181827c03bd0f2d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
// compile-flags: -C no-prepopulate-passes -Zmir-opt-level=0
#![crate_type = "lib"]
// Hack to get the correct size for the length part in slices
// CHECK: @helper([[USIZE:i[0-9]+]] %_1)
#[no_mangle]
pub fn helper(_: usize) {
}
// CHECK-LABEL: @ref_dst
#[no_mangle]
pub fn ref_dst(s: &[u8]) {
// We used to generate an extra alloca and memcpy to ref the dst, so check that we copy
// directly to the alloca for "x"
// CHECK: [[X0:%[0-9]+]] = getelementptr inbounds { {{\[0 x i8\]\*|ptr}}, [[USIZE]] }, {{.*}} %x, i32 0, i32 0
// CHECK: store {{\[0 x i8\]\*|ptr}} %s.0, {{.*}} [[X0]]
// CHECK: [[X1:%[0-9]+]] = getelementptr inbounds { {{\[0 x i8\]\*|ptr}}, [[USIZE]] }, {{.*}} %x, i32 0, i32 1
// CHECK: store [[USIZE]] %s.1, {{.*}} [[X1]]
let x = &*s;
&x; // keep variable in an alloca
}
|
