1 // Check that we call llvm.load.relative() on a vtable function call.
2
3 // RUN: %clang_cc1 %s -triple=aarch64-unknown-fuchsia -O3 -S -o - -emit-llvm -fexperimental-relative-c++-abi-vtables | FileCheck %s
4
5 // CHECK: define void @_Z5A_fooP1A(%class.A* %a) local_unnamed_addr
6 // CHECK-NEXT: entry:
7 // CHECK-NEXT: [[this:%[0-9]+]] = bitcast %class.A* %a to i8**
8 // CHECK-NEXT: %vtable1 = load i8*, i8** [[this]]
9 // CHECK-NEXT: [[func_ptr:%[0-9]+]] = tail call i8* @llvm.load.relative.i32(i8* %vtable1, i32 0)
10 // CHECK-NEXT: [[func:%[0-9]+]] = bitcast i8* [[func_ptr]] to void (%class.A*)*
11 // CHECK-NEXT: tail call void [[func]](%class.A* {{[^,]*}} %a)
12 // CHECK-NEXT: ret void
13 // CHECK-NEXT: }
14
15 class A {
16 public:
17 virtual void foo();
18 };
19
A_foo(A * a)20 void A_foo(A *a) {
21 a->foo();
22 }
23