clang/test/CodeGenCXX/default_calling_conv.cpp

   1 // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fdefault-calling-conv=cdecl -emit-llvm -o - %s | FileCheck %s --check-prefix=CDECL --check-prefix=X86 --check-prefix=ALL
   2 // RUN: %clang_cc1 -triple i786-unknown-linux-gnu -target-feature +sse4.2 -fdefault-calling-conv=fastcall -emit-llvm -o - %s | FileCheck %s --check-prefix=FASTCALL --check-prefix=X86 --check-prefix=ALL
   3 // RUN: %clang_cc1 -triple i486-unknown-linux-gnu -fdefault-calling-conv=stdcall -emit-llvm -o - %s | FileCheck %s --check-prefix=STDCALL --check-prefix=X86 --check-prefix=ALL
   4 // RUN: %clang_cc1 -triple i486-unknown-linux-gnu -mrtd -emit-llvm -o - %s | FileCheck %s --check-prefix=STDCALL --check-prefix=X86 --check-prefix=ALL
   5 // RUN: %clang_cc1 -triple i986-unknown-linux-gnu -fdefault-calling-conv=vectorcall -emit-llvm -o - %s | FileCheck %s --check-prefix=VECTORCALL --check-prefix=X86 --check-prefix=ALL
   6 // RUN: %clang_cc1 -triple i986-unknown-linux-gnu -fdefault-calling-conv=regcall -emit-llvm -o - %s | FileCheck %s --check-prefix=REGCALL --check-prefix=X86 --check-prefix=ALL
   7 // RUN: %clang_cc1 -triple i686-pc-win32 -fdefault-calling-conv=vectorcall -emit-llvm -o - %s -DWINDOWS | FileCheck %s --check-prefix=WIN32
   8 // RUN: %clang_cc1 -triple x86_64-windows-msvc -fdefault-calling-conv=vectorcall -emit-llvm -o - %s -DWINDOWS | FileCheck %s --check-prefix=WIN64
   9 // RUN: %clang_cc1 -triple i686-pc-win32 -emit-llvm -o - %s -DEXPLICITCC | FileCheck %s --check-prefix=EXPLICITCC
  10 // RUN: %clang_cc1 -triple m68k-unknown-linux-gnu -mrtd -emit-llvm -o - %s | FileCheck %s --check-prefix=RTDCALL --check-prefix=ALL
  11 // RUN: %clang_cc1 -triple m68k-unknown-linux-gnu -fdefault-calling-conv=rtdcall -emit-llvm -o - %s | FileCheck %s --check-prefix=RTDCALL --check-prefix=ALL
  12
  13 // CDECL: define{{.*}} void @_Z5test1v
  14 // FASTCALL: define{{.*}} x86_fastcallcc void @_Z5test1v
  15 // STDCALL: define{{.*}} x86_stdcallcc void @_Z5test1v
  16 // VECTORCALL: define{{.*}} x86_vectorcallcc void @_Z5test1v
  17 // REGCALL: define{{.*}} x86_regcallcc void @_Z17__regcall3__test1v
  18 // RTDCALL: define{{.*}} m68k_rtdcc void @_Z5test1v
  19 void test1() {}
  20
  21 // fastcall, stdcall, vectorcall, regcall and m68k_rtd do not support variadic functions.
  22 // CDECL: define{{.*}} void @_Z12testVariadicz
  23 // FASTCALL: define{{.*}} void @_Z12testVariadicz
  24 // STDCALL: define{{.*}} void @_Z12testVariadicz
  25 // VECTORCALL: define{{.*}} void @_Z12testVariadicz
  26 // REGCALL: define{{.*}} void @_Z12testVariadicz
  27 // RTDCALL: define{{.*}} void @_Z12testVariadicz
  28 void testVariadic(...){}
  29
  30 // X86: define{{.*}} void @_Z5test2v
  31 void __attribute__((cdecl)) test2() {}
  32
  33 // X86: define{{.*}} x86_fastcallcc void @_Z5test3v
  34 void __attribute__((fastcall)) test3() {}
  35
  36 // X86: define{{.*}} x86_stdcallcc void @_Z5test4v
  37 void __attribute__((stdcall)) test4() {}
  38
  39 // X86: define{{.*}} x86_vectorcallcc void @_Z5test5v
  40 void __attribute__((vectorcall)) test5() {}
  41
  42 // X86: define{{.*}} x86_regcallcc void @_Z17__regcall3__test6v
  43 void __attribute__((regcall)) test6() {}
  44
  45 // RTDCALL: define{{.*}} m68k_rtdcc void @_Z5test7v
  46 void __attribute__((m68k_rtd)) test7() {}
  47
  48 // ALL: define linkonce_odr void @_ZN1A11test_memberEv
  49 class A {
  50 public:
  51   void test_member() {}
  52 };
  53
  54 void test() {
  55   A a;
  56   a.test_member();
  57
  58 // ALL: define internal void @"_ZZ{{.*}}testvENK3$_0clEi"
  59   auto f = [](int b) {};
  60   f(87);
  61 }
  62
  63 // ALL: define{{.*}} i32 @main
  64 int main() {
  65   return 1;
  66 }
  67
  68 #ifdef WINDOWS
  69 // WIN32: define dso_local noundef i32 @wmain
  70 // WIN64: define dso_local noundef i32 @wmain
  71 int wmain() {
  72   return 1;
  73 }
  74 // WIN32: define dso_local x86_stdcallcc noundef i32 @WinMain
  75 // WIN64: define dso_local noundef i32 @WinMain
  76 int WinMain() {
  77   return 1;
  78 }
  79 // WIN32: define dso_local x86_stdcallcc noundef i32 @wWinMain
  80 // WIN64: define dso_local noundef i32 @wWinMain
  81 int wWinMain() {
  82   return 1;
  83 }
  84 // WIN32: define dso_local x86_stdcallcc noundef i32 @DllMain
  85 // WIN64: define dso_local noundef i32 @DllMain
  86 int DllMain() {
  87   return 1;
  88 }
  89 #endif // Windows
  90
  91 #ifdef EXPLICITCC
  92 // EXPLICITCC: define dso_local x86_fastcallcc noundef i32 @wmain
  93 int __fastcall wmain() {
  94   return 1;
  95 }
  96 // EXPLICITCC: define dso_local x86_fastcallcc noundef i32 @WinMain
  97 int __fastcall WinMain() {
  98   return 1;
  99 }
 100 // EXPLICITCC: define dso_local x86_fastcallcc noundef i32 @wWinMain
 101 int __fastcall wWinMain() {
 102   return 1;
 103 }
 104 // EXPLICITCC: define dso_local x86_fastcallcc noundef i32 @DllMain
 105 int __fastcall DllMain() {
 106   return 1;
 107 }
 108 #endif // ExplicitCC