clang/test/CodeGen/ptrauth-ubsan-vptr.cpp

   1 // RUN: %clang_cc1 -triple arm64e-apple-ios15 -fsanitize=vptr -O0 -emit-llvm -o - %s | FileCheck %s
   2 // RUN: %clang_cc1 -triple arm64e-apple-ios15 -fsanitize=vptr -O2 -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s
   3
   4 // RUN: %clang_cc1 -triple aarch64-linux-gnu  -fsanitize=vptr -O0 -emit-llvm -o - %s | FileCheck %s
   5 // RUN: %clang_cc1 -triple aarch64-linux-gnu  -fsanitize=vptr -O2 -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s
   6
   7 struct S {
   8   S() {}
   9   ~S() {}
  10   virtual int v() { return 0; }
  11   int a;
  12 };
  13
  14 struct T : public S {
  15   virtual int v();
  16 };
  17
  18 // CHECK-LABEL: foo1
  19 int foo1(void* Buffer) {
  20   T *p = reinterpret_cast<T*>(Buffer);
  21   return p->v();
  22 }
  23 // CHECK-NOT: call {{.*}} @llvm.ptrauth.auth{{.*}}
  24 // CHECK-NOT: call {{.*}} @llvm.ptrauth.strip{{.*}}
  25
  26 // CHECK-LABEL: foo2
  27 int foo2(S* s) {
  28   T *p = dynamic_cast<T*>(s);
  29   return p->v();
  30 }
  31
  32 // CHECK-NOT: call {{.*}} @llvm.ptrauth.auth{{.*}}
  33 // CHECK-NOT: call {{.*}} @llvm.ptrauth.strip{{.*}}