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//@ compile-flags: -Copt-level=3 -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 ]+}}, 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 ]+}}, ptr %c)
// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, ptr %c)
// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, ptr %a)
}
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