clang/test/CodeGenCXX/microsoft-abi-default-cc.cpp

   1 // RUN: %clang_cc1 -triple i386-pc-linux -emit-llvm %s -o - | FileCheck -check-prefix GCABI %s
   2 // RUN: %clang_cc1 -emit-llvm %s -o - -DMS_ABI -triple=i386-pc-win32 | FileCheck -check-prefix MSABI %s
   3
   4 #ifdef MS_ABI
   5 # define METHOD_CC __thiscall
   6 #else
   7 # define METHOD_CC __attribute__ ((cdecl))
   8 #endif
   9
  10 // Test that it's OK to have multiple function declarations with the default CC
  11 // both mentioned explicitly and implied.
  12 void foo();
  13 void __cdecl foo();
  14 void __cdecl foo() {}
  15 // GCABI-LABEL: define{{.*}} void @_Z3foov()
  16 // MSABI: define dso_local void @"?foo@@YAXXZ"
  17
  18 void __cdecl bar();
  19 void bar();
  20 void bar() {}
  21 // GCABI-LABEL: define{{.*}} void @_Z3barv()
  22 // MSABI: define dso_local void @"?bar@@YAXXZ"
  23
  24 // Test that it's OK to mark either the method declaration or method definition
  25 // with a default CC explicitly.
  26 class A {
  27 public:
  28   void baz();
  29   void METHOD_CC qux();
  30
  31   static void static_baz();
  32   static void __cdecl static_qux();
  33 };
  34
  35 void METHOD_CC A::baz() {}
  36 // GCABI-LABEL: define{{.*}} void @_ZN1A3bazEv
  37 // MSABI: define dso_local x86_thiscallcc void @"?baz@A@@QAEXXZ"
  38 void A::qux() {}
  39 // GCABI-LABEL: define{{.*}} void @_ZN1A3quxEv
  40 // MSABI: define dso_local x86_thiscallcc void @"?qux@A@@QAEXXZ"
  41
  42 void __cdecl static_baz() {}
  43 // GCABI-LABEL: define{{.*}} void @_Z10static_bazv
  44 // MSABI: define dso_local void @"?static_baz@@YAXXZ"
  45 void static_qux() {}
  46 // GCABI-LABEL: define{{.*}} void @_Z10static_quxv
  47 // MSABI: define dso_local void @"?static_qux@@YAXXZ"
  48
  49 namespace PR31656 {
  50 template <int I>
  51 void __cdecl callee(int args[I]);
  52 // GCABI-LABEL: declare void @_ZN7PR316566calleeILi1EEEvPi(
  53 // MSABI: declare dso_local void @"??$callee@$00@PR31656@@YAXQAH@Z"(
  54
  55 void caller() { callee<1>(0); }
  56 }