1 // Check the layout of the vtable for a normal class.
2 // The Fuchsia relative vtables ABI will be hidden behind a flag for now as part
3 // of a soft incremental rollout. This ABI should only be used if the flag for
4 // it is passed on Fuchsia.
5
6 // RUN: %clang_cc1 -no-opaque-pointers %s -triple=aarch64-unknown-fuchsia -S -o - -emit-llvm -fhalf-no-semantic-interposition | FileCheck --check-prefix=RELATIVE-ABI %s
7 // RUN: %clang_cc1 -no-opaque-pointers %s -triple=aarch64-unknown-fuchsia -S -o - -emit-llvm -fno-experimental-relative-c++-abi-vtables | FileCheck --check-prefix=DEFAULT-ABI %s
8
9 // VTable contains offsets and references to the hidden symbols
10 // RELATIVE-ABI: @_ZTV1A.local = private unnamed_addr constant { [3 x i32] } { [3 x i32] [i32 0, i32 trunc (i64 sub (i64 ptrtoint ({ i8*, i8* }** @_ZTI1A.rtti_proxy to i64), i64 ptrtoint (i32* getelementptr inbounds ({ [3 x i32] }, { [3 x i32] }* @_ZTV1A.local, i32 0, i32 0, i32 2) to i64)) to i32), i32 trunc (i64 sub (i64 ptrtoint (void (%class.A*)* dso_local_equivalent @_ZN1A3fooEv to i64), i64 ptrtoint (i32* getelementptr inbounds ({ [3 x i32] }, { [3 x i32] }* @_ZTV1A.local, i32 0, i32 0, i32 2) to i64)) to i32)] }, align 4
11 // RELATIVE-ABI: @_ZTV1A ={{.*}} unnamed_addr alias { [3 x i32] }, { [3 x i32] }* @_ZTV1A.local
12 // DEFAULT-ABI: @_ZTV1A ={{.*}} unnamed_addr constant { [3 x i8*] } { [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*), i8* bitcast (void (%class.A*)* @_ZN1A3fooEv to i8*)] }, align 8
13
14 class A {
15 public:
16 virtual void foo();
17 };
18
foo()19 void A::foo() {}
20
A_foo(A * a)21 void A_foo(A *a) {
22 a->foo();
23 }
24