clang/test/Headers/ms-intrin.cpp

   1 // RUN: %clang_cc1 -triple i386-pc-win32 -target-cpu pentium4 \
   2 // RUN:     -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
   3 // RUN:     -ffreestanding -fsyntax-only -Werror \
   4 // RUN:     -isystem %S/Inputs/include %s
   5
   6 // RUN: %clang_cc1 -triple i386-pc-win32 -target-cpu broadwell \
   7 // RUN:     -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
   8 // RUN:     -ffreestanding -emit-obj -o /dev/null -Werror \
   9 // RUN:     -isystem %S/Inputs/include %s
  10
  11 // RUN: %clang_cc1 -triple x86_64-pc-win32  \
  12 // RUN:     -fms-extensions -fms-compatibility -fms-compatibility-version=17.00 \
  13 // RUN:     -ffreestanding -emit-obj -o /dev/null -Werror \
  14 // RUN:     -isystem %S/Inputs/include %s
  15
  16 // RUN: %clang_cc1 -triple thumbv7--windows \
  17 // RUN:     -fms-compatibility -fms-compatibility-version=17.00 \
  18 // RUN:     -ffreestanding -fsyntax-only -Werror \
  19 // RUN:     -isystem %S/Inputs/include %s
  20
  21 // REQUIRES: x86-registered-target
  22
  23 // intrin.h needs size_t, but -ffreestanding prevents us from getting it from
  24 // stddef.h.  Work around it with this typedef.
  25 typedef __SIZE_TYPE__ size_t;
  26
  27 #include <intrin.h>
  28
  29 // Use some C++ to make sure we closed the extern "C" brackets.
  30 template <typename T>
  31 void foo(T V) {}
  32
  33 // __asm__ blocks are only checked for inline functions that end up being
  34 // emitted, so call functions with __asm__ blocks to make sure their inline
  35 // assembly parses.
  36 void f() {
  37   __movsb(0, 0, 0);
  38   __movsd(0, 0, 0);
  39   __movsw(0, 0, 0);
  40
  41   __stosd(0, 0, 0);
  42   __stosw(0, 0, 0);
  43
  44 #ifdef _M_X64
  45   __movsq(0, 0, 0);
  46   __stosq(0, 0, 0);
  47 #endif
  48
  49   int info[4];
  50   __cpuid(info, 0);
  51   __cpuidex(info, 0, 0);
  52 #if defined(_M_X64) || defined(_M_IX86)
  53   _xgetbv(0);
  54 #endif
  55   __halt();
  56   __nop();
  57   __readmsr(0);
  58
  59   __readcr3();
  60   __writecr3(0);
  61
  62 #ifdef _M_ARM
  63   __dmb(_ARM_BARRIER_ISHST);
  64 #endif
  65
  66 #ifdef _M_ARM64
  67   __dmb(_ARM64_BARRIER_SY);
  68 #endif
  69 }