clang/test/CodeGenCXX/builtin-calling-conv.cpp

   1 // RUN: %clang_cc1 -triple x86_64-linux-pc -DREDECL -emit-llvm %s -o - | FileCheck %s -check-prefix LINUX
   2 // RUN: %clang_cc1 -triple spir-unknown-unknown -DREDECL -DSPIR -emit-llvm %s -o - | FileCheck %s -check-prefix SPIR
   3 // RUN: %clang_cc1 -triple x86_64-linux-pc -emit-llvm %s -o - | FileCheck %s -check-prefix LINUX
   4 // RUN: %clang_cc1 -triple spir-unknown-unknown -DSPIR -emit-llvm %s -o - | FileCheck %s -check-prefix SPIR
   5 // RUN: %clang_cc1 -triple i386-windows-pc -fdefault-calling-conv=stdcall -emit-llvm %s -o - | FileCheck %s -check-prefix WIN32
   6
   7 #ifdef REDECL
   8 namespace std {
   9 #ifdef SPIR
  10 using size_t = unsigned int;
  11 #else
  12 using size_t = unsigned long;
  13 #endif // SPIR
  14 } // namespace std
  15
  16 float __builtin_atan2f(float, float);
  17 void *operator new(std::size_t);
  18 #endif // REDECL
  19
  20 void foo();
  21
  22 void user() {
  23   int i;
  24   ::operator new(5);
  25   (void)__builtin_atan2f(1.1, 2.2);
  26   foo();
  27 }
  28
  29 // LINUX: define{{.*}} void @_Z4userv()
  30 // LINUX: call noalias noundef nonnull ptr @_Znwm
  31 // LINUX: call float @atan2f
  32 // LINUX: call void @_Z3foov
  33 // LINUX: declare noundef nonnull ptr @_Znwm(i64 noundef)
  34 // LINUX: declare float @atan2f(float noundef, float noundef)
  35 // LINUX: declare void @_Z3foov()
  36
  37 // SPIR: define{{.*}} spir_func void @_Z4userv()
  38 // SPIR: call spir_func noalias noundef nonnull ptr @_Znwj
  39 // SPIR: call spir_func float @atan2f
  40 // SPIR: call spir_func void @_Z3foov
  41 // SPIR: declare spir_func noundef nonnull ptr @_Znwj(i32 noundef)
  42 // SPIR: declare spir_func float @atan2f(float noundef, float noundef)
  43 // SPIR: declare spir_func void @_Z3foov()
  44
  45 // Note: Windows /G options should not change the platform default calling
  46 // convention of builtins.
  47 // WIN32: define dso_local x86_stdcallcc void @"?user@@YGXXZ"()
  48 // WIN32: call noalias noundef nonnull ptr @"??2@YAPAXI@Z"
  49 // WIN32: call float @atan2f
  50 // WIN32: call x86_stdcallcc void @"?foo@@YGXXZ"
  51 // WIN32: declare dso_local noundef nonnull ptr @"??2@YAPAXI@Z"(
  52 // WIN32: declare dso_local float @atan2f(float noundef, float noundef)
  53 // WIN32: declare dso_local x86_stdcallcc void @"?foo@@YGXXZ"()