| // This test checks that temporaries for indirectly-passed arguments get lifetime markers. |
| |
| //@ compile-flags: -O -C no-prepopulate-passes -Zmir-opt-level=0 |
| |
| #![crate_type = "lib"] |
| |
| extern "Rust" { |
| fn f(x: [u8; 1024]); |
| } |
| |
| const A: [u8; 1024] = [0; 1024]; |
| |
| // CHECK-LABEL: @const_arg_indirect |
| #[no_mangle] |
| pub unsafe fn const_arg_indirect() { |
| // Ensure that the live ranges for the two argument temporaries don't overlap. |
| |
| // CHECK: call void @llvm.lifetime.start |
| // CHECK: call void @f |
| // CHECK: call void @llvm.lifetime.end |
| // CHECK: call void @llvm.lifetime.start |
| // CHECK: call void @f |
| // CHECK: call void @llvm.lifetime.end |
| |
| f(A); |
| f(A); |
| } |
