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 %s -triple=aarch64-unknown-fuchsia -S -o - -emit-llvm -fhalf-no-semantic-interposition | FileCheck --check-prefix=RELATIVE-ABI %s 7 // RUN: %clang_cc1 %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 19 void A::foo() {} 20 21 void A_foo(A *a) { 22 a->foo(); 23 } 24