1 // RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-calls -fcxx-exceptions -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK 2 // RUN: %clang_cc1 -fptrauth-function-pointer-type-discrimination -triple arm64-apple-ios -fptrauth-calls -fcxx-exceptions -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECKDISC 3 4 // RUN: %clang_cc1 -triple aarch64-linux-gnu -fptrauth-calls -fcxx-exceptions -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK 5 // RUN: %clang_cc1 -fptrauth-function-pointer-type-discrimination -triple aarch64-linux-gnu -fptrauth-calls -fcxx-exceptions -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECKDISC 6 7 class Foo { 8 public: 9 ~Foo() { 10 } 11 }; 12 13 // CHECK-LABEL: define{{.*}} void @_Z1fv() 14 // CHECK: call void @__cxa_throw(ptr %{{.*}}, ptr @_ZTI3Foo, ptr ptrauth (ptr @_ZN3FooD1Ev, i32 0)) 15 16 // CHECKDISC-LABEL: define{{.*}} void @_Z1fv() 17 // CHECKDISC: call void @__cxa_throw(ptr %{{.*}}, ptr @_ZTI3Foo, ptr ptrauth (ptr @_ZN3FooD1Ev, i32 0, i64 10942)) 18 19 void f() { 20 throw Foo(); 21 } 22 23 // __cxa_throw is defined to take its destructor as "void (*)(void *)" in the ABI. 24 // CHECK-LABEL: define{{.*}} void @__cxa_throw({{.*}}) 25 // CHECK: call void {{%.*}}(ptr noundef {{%.*}}) [ "ptrauth"(i32 0, i64 0) ] 26 27 // CHECKDISC-LABEL: define{{.*}} void @__cxa_throw({{.*}}) 28 // CHECKDISC: call void {{%.*}}(ptr noundef {{%.*}}) [ "ptrauth"(i32 0, i64 10942) ] 29 30 extern "C" void __cxa_throw(void *exception, void *, void (*dtor)(void *)) { 31 dtor(exception); 32 } 33