clang/test/CodeGen/cfi-unrelated-cast.cpp

   1 // STL allocators should not have unrelated-cast tests applied
   2 // RUN: %clang_cc1 -flto -triple x86_64-unknown-linux -fvisibility=hidden -fsanitize=cfi-unrelated-cast -emit-llvm -o - %s | FileCheck %s
   3
   4 #include <stddef.h>
   5
   6 template<class T>
   7 class myalloc {
   8  public:
   9   // CHECK: define{{.*}}allocateE{{.}}
  10   // CHECK-NOT: llvm.type.test
  11   T *allocate(size_t sz) {
  12     return (T*)::operator new(sz);
  13   }
  14
  15   // CHECK: define{{.*}}allocateE{{.}}PKv
  16   // CHECK-NOT: llvm.type.test
  17   T *allocate(size_t sz, const void *ptr) {
  18     return (T*)::operator new(sz);
  19   }
  20
  21   // CHECK: define{{.*}}differentName
  22   // CHECK: llvm.type.test
  23   T *differentName(size_t sz, const void *ptr) {
  24     return (T*)::operator new(sz);
  25   }
  26 };
  27
  28 class C1 {
  29   virtual void f() {}
  30 };
  31
  32 C1 *f1() {
  33   myalloc<C1> allocator;
  34   (void)allocator.allocate(16);
  35   (void)allocator.allocate(16, 0);
  36   (void)allocator.differentName(16, 0);
  37 }