1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
// compile-flags: -O -C no-prepopulate-passes -Zmir-opt-level=0
#![crate_type = "lib"]
// CHECK-LABEL: @test
#[no_mangle]
pub fn test() {
let a = 0u8;
&a; // keep variable in an alloca
// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %a)
{
let b = &Some(a);
&b; // keep variable in an alloca
// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{.*}})
// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{.*}})
// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{.*}})
// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{.*}})
}
let c = 1u8;
&c; // keep variable in an alloca
// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %c)
// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %c)
// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %a)
}
|
