1*67e74705SXin Li // RUN: %clang_cc1 %s -triple=x86_64-pc-linux -emit-llvm -o - | FileCheck --check-prefix=X86 %s 2*67e74705SXin Li // RUN: %clang_cc1 %s -triple=wasm32 -emit-llvm -o - | FileCheck --check-prefix=WASM %s 3*67e74705SXin Li // RUN: %clang_cc1 %s -triple=armv7-apple-darwin9 -emit-llvm -o - | FileCheck --check-prefix=ARM %s 4*67e74705SXin Li 5*67e74705SXin Li // Test that destructors are not passed directly to __cxa_atexit when their 6*67e74705SXin Li // signatures do not match the type of its first argument. 7*67e74705SXin Li // e.g. ARM and WebAssembly have destructors that return this instead of void. 8*67e74705SXin Li 9*67e74705SXin Li 10*67e74705SXin Li class Foo { 11*67e74705SXin Li public: ~Foo()12*67e74705SXin Li ~Foo() { 13*67e74705SXin Li } 14*67e74705SXin Li }; 15*67e74705SXin Li 16*67e74705SXin Li Foo global; 17*67e74705SXin Li 18*67e74705SXin Li // X86 destructors have void return, and are registered directly with __cxa_atexit. 19*67e74705SXin Li // X86: define internal void @__cxx_global_var_init() 20*67e74705SXin Li // X86: call i32 @__cxa_atexit(void (i8*)* bitcast (void (%class.Foo*)* @_ZN3FooD1Ev to void (i8*)*), i8* getelementptr inbounds (%class.Foo, %class.Foo* @global, i32 0, i32 0), i8* @__dso_handle) 21*67e74705SXin Li 22*67e74705SXin Li // ARM destructors return this, but can be registered directly with __cxa_atexit 23*67e74705SXin Li // because the calling conventions tolerate the mismatch. 24*67e74705SXin Li // ARM: define internal void @__cxx_global_var_init() 25*67e74705SXin Li // ARM: call i32 @__cxa_atexit(void (i8*)* bitcast (%class.Foo* (%class.Foo*)* @_ZN3FooD1Ev to void (i8*)*), i8* getelementptr inbounds (%class.Foo, %class.Foo* @global, i32 0, i32 0), i8* @__dso_handle) 26*67e74705SXin Li 27*67e74705SXin Li // Wasm destructors return this, and use a wrapper function, which is registered 28*67e74705SXin Li // with __cxa_atexit. 29*67e74705SXin Li // WASM: define internal void @__cxx_global_var_init() 30*67e74705SXin Li // WASM: call i32 @__cxa_atexit(void (i8*)* @__cxx_global_array_dtor, i8* null, i8* @__dso_handle) 31*67e74705SXin Li 32*67e74705SXin Li // WASM: define internal void @__cxx_global_array_dtor(i8*) 33*67e74705SXin Li // WASM: %call = call %class.Foo* @_ZN3FooD1Ev(%class.Foo* @global) 34