| // 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) |
| } |
