clang/test/CodeGenCXX/ubsan-nullability-arg.cpp

   1 // RUN: %clang_cc1 -x c++ -triple x86_64-apple-darwin10 -emit-llvm -o - %s -fsanitize=nullability-arg | FileCheck %s -check-prefixes=ITANIUM,ALL
   2 // RUN: %clang_cc1 -x c++ -triple x86_64-pc-windows-msvc -emit-llvm -o - %s -fsanitize=nullability-arg | FileCheck %s -check-prefixes=MSVC,ALL
   3
   4 namespace method_ptr {
   5
   6 struct S0 {
   7   void foo1();
   8 };
   9
  10 void foo1(void (S0::*_Nonnull f)());
  11
  12 // ITANIUM-LABEL: @_ZN10method_ptr5test1Ev(){{.*}} {
  13 // ITANIUM: br i1 icmp ne (i64 ptrtoint (ptr @_ZN10method_ptr2S04foo1Ev to i64), i64 0), label %[[CONT:.*]], label %[[FAIL:[^,]*]]
  14 // ITANIUM-EMPTY:
  15 // ITANIUM-NEXT: [[FAIL]]:
  16 // ITANIUM-NEXT:   call void @__ubsan_handle_nullability_arg
  17
  18 // MSVC-LABEL: @"?test1@method_ptr@@YAXXZ"(){{.*}} {
  19 // MSVC: br i1 true, label %[[CONT:.*]], label %[[FAIL:[^,]*]]
  20 // MSVC-EMPTY:
  21 // MSVC-NEXT: [[FAIL]]:
  22 // MSVC-NEXT:   call void @__ubsan_handle_nullability_arg
  23 void test1() {
  24   foo1(&S0::foo1);
  25 }
  26
  27 } // namespace method_ptr
  28
  29 namespace data_ptr {
  30
  31 struct S0 {
  32   int field1;
  33 };
  34
  35 using member_ptr = int S0::*;
  36
  37 void foo1(member_ptr _Nonnull);
  38
  39 // ITANIUM-LABEL: @_ZN8data_ptr5test1ENS_2S0E(
  40 // MSVC-LABEL: @"?test1@data_ptr@@YAXUS0@1@@Z"(
  41 // ALL: [[DATA_PTR_CHECK:%.*]] = icmp ne {{.*}}, -1, !nosanitize
  42 // ALL-NEXT: br i1 [[DATA_PTR_CHECK]], label %[[CONT:.*]], label %[[FAIL:[^,]+]]
  43 // ALL-EMPTY:
  44 // ALL-NEXT: [[FAIL]]:
  45 // ALL-NEXT:   call void @__ubsan_handle_nullability_arg
  46 void test1(S0 s) {
  47   int S0::*member = &S0::field1;
  48   foo1(member);
  49 }
  50
  51 } // namespace data_ptr