clang/test/CodeGenCXX/wasm-sanitize-vptr.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsanitize=vptr -emit-llvm %s -o - -triple wasm32-unknown-emscripten | FileCheck %s
   2
   3 struct S {
   4   virtual ~S() {}
   5   int a;
   6 };
   7
   8 struct T : S {
   9   int b;
  10 };
  11
  12 // CHECK-LABEL: @_Z15bad_static_castv
  13 void bad_static_cast() {
  14   S s;
  15   // CHECK: br i1 %[[NONNULL:.*]], label %[[CONT:.*]], label %[[MISS:.*]], !prof
  16   // CHECK: [[MISS]]:
  17   // CHECK: call void @__ubsan_handle_dynamic_type_cache_miss_abort
  18   // CHECK: [[CONT]]:
  19   T &r = static_cast<T &>(s);
  20 }