clang/test/CodeGenCXX/microsoft-uuidof-mangling.cpp

   1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-unknown-unknown -fms-extensions | FileCheck %s --check-prefixes=CHECK,CHECK-V12
   2 // RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-unknown-unknown -fms-extensions -fclang-abi-compat=11 | FileCheck %s --check-prefixes=CHECK,CHECK-V11
   3
   4 typedef struct _GUID
   5 {
   6     unsigned int  Data1;
   7     unsigned short Data2;
   8     unsigned short Data3;
   9     unsigned char  Data4[ 8 ];
  10 } GUID;
  11
  12
  13 template < typename T, const GUID & T_iid = __uuidof(T)>
  14 class UUIDTest
  15 {
  16 public:
  17         UUIDTest() { }
  18 };
  19
  20 struct __declspec(uuid("EAFA1952-66F8-438B-8FBA-AF1BBAE42191")) TestStruct
  21 {
  22         int foo;
  23 };
  24
  25 struct __declspec(uuid("EAFA1952-66F8-438B-8FBA-AF1BBAE42191")) OtherStruct {};
  26
  27 template <class T> void test_uuidofType(decltype(__uuidof(T)) arg) {}
  28
  29 template <class T> void test_uuidofExpr(decltype(__uuidof(T::member)) arg) {}
  30
  31 struct HasMember {
  32   TestStruct member;
  33 };
  34
  35 // Ensure that mangling an "expr-primary" argument is handled properly.
  36 template <class T> void test_uuidofExpr2(decltype(T{}, __uuidof(HasMember::member)) arg) {}
  37
  38 template<const GUID&> struct UUIDTestTwo { UUIDTestTwo(); };
  39
  40 int main(int argc, const char * argv[])
  41 {
  42     UUIDTest<TestStruct> uuidof_test;
  43     // Note that these variables have the same type, so the mangling of that
  44     // type had better not mention TestStruct or OtherStruct!
  45     UUIDTestTwo<__uuidof(TestStruct)> uuidof_test2;
  46     UUIDTestTwo<__uuidof(OtherStruct)> uuidof_test3;
  47     test_uuidofType<TestStruct>(GUID{});
  48     test_uuidofExpr<HasMember>(GUID{});
  49     test_uuidofExpr2<TestStruct>(GUID{});
  50     return 0;
  51 }
  52
  53 // CHECK: define{{.*}} i32 @main
  54 // CHECK: call void @_ZN8UUIDTestI10TestStructL_Z42_GUID_eafa1952_66f8_438b_8fba_af1bbae42191EEC1Ev(
  55 // CHECK: call void @_ZN11UUIDTestTwoIL_Z42_GUID_eafa1952_66f8_438b_8fba_af1bbae42191EEC1Ev(
  56 // CHECK: call void @_ZN11UUIDTestTwoIL_Z42_GUID_eafa1952_66f8_438b_8fba_af1bbae42191EEC1Ev(
  57 // CHECK-V11: call void @_Z15test_uuidofTypeI10TestStructEvDTu8__uuidoftT_E(
  58 // CHECK-V12: call void @_Z15test_uuidofTypeI10TestStructEvDTu8__uuidofT_EE(
  59 // CHECK-V11: call void @_Z15test_uuidofExprI9HasMemberEvDTu8__uuidofzsrT_6memberE(
  60 // CHECK-V12: call void @_Z15test_uuidofExprI9HasMemberEvDTu8__uuidofXsrT_6memberEEE(
  61 // CHECK-V11: call void @_Z16test_uuidofExpr2I10TestStructEvDTcmtlT_Eu8__uuidofzL_ZN9HasMember6memberEEE(
  62 // CHECK-V12: call void @_Z16test_uuidofExpr2I10TestStructEvDTcmtlT_Eu8__uuidofL_ZN9HasMember6memberEEEE(
  63 // CHECK: define linkonce_odr void @_ZN8UUIDTestI10TestStructL_Z42_GUID_eafa1952_66f8_438b_8fba_af1bbae42191EEC1Ev
  64 // CHECK-V11: define linkonce_odr void @_Z15test_uuidofTypeI10TestStructEvDTu8__uuidoftT_E(
  65 // CHECK-V12: define linkonce_odr void @_Z15test_uuidofTypeI10TestStructEvDTu8__uuidofT_EE(
  66 // CHECK-V11: define linkonce_odr void @_Z15test_uuidofExprI9HasMemberEvDTu8__uuidofzsrT_6memberE(
  67 // CHECK-V12: define linkonce_odr void @_Z15test_uuidofExprI9HasMemberEvDTu8__uuidofXsrT_6memberEEE(
  68 // CHECK-V11: define linkonce_odr void @_Z16test_uuidofExpr2I10TestStructEvDTcmtlT_Eu8__uuidofzL_ZN9HasMember6memberEEE(
  69 // CHECK-V12: define linkonce_odr void @_Z16test_uuidofExpr2I10TestStructEvDTcmtlT_Eu8__uuidofL_ZN9HasMember6memberEEEE(
  70 // CHECK: define linkonce_odr void @_ZN8UUIDTestI10TestStructL_Z42_GUID_eafa1952_66f8_438b_8fba_af1bbae42191EEC2Ev