| // Check the layout of the vtable for a normal class. |
| |
| // RUN: %clang_cc1 %s -triple=aarch64-unknown-fuchsia -O1 -S -o - -emit-llvm -fhalf-no-semantic-interposition | FileCheck %s |
| |
| // We should be emitting comdats for each of the virtual function RTTI proxies |
| // CHECK: $_ZTI1A.rtti_proxy = comdat any |
| |
| // VTable contains offsets and references to the hidden symbols |
| // The vtable definition itself is private so we can take relative references to |
| // it. The vtable symbol will be exposed through a public alias. |
| // CHECK: @_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 |
| // CHECK: @_ZTVN10__cxxabiv117__class_type_infoE = external global i8* |
| // CHECK: @_ZTS1A ={{.*}} constant [3 x i8] c"1A\00", align 1 |
| // CHECK: @_ZTI1A ={{.*}} constant { i8*, i8* } { i8* getelementptr inbounds (i8, i8* bitcast (i8** @_ZTVN10__cxxabiv117__class_type_infoE to i8*), i32 8), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1A, i32 0, i32 0) }, align 8 |
| |
| // The rtti should be in a comdat |
| // CHECK: @_ZTI1A.rtti_proxy = hidden unnamed_addr constant { i8*, i8* }* @_ZTI1A, comdat |
| |
| // The vtable symbol is exposed through an alias. |
| // @_ZTV1A = dso_local unnamed_addr alias { [3 x i32] }, { [3 x i32] }* @_ZTV1A.local |
| |
| class A { |
| public: |
| virtual void foo(); |
| }; |
| |
| void A::foo() {} |
| |
| void A_foo(A *a) { |
| a->foo(); |
| } |
