external/bsd/llvm/dist/clang/lib/Headers/ia32intrin.h

   1 /* ===-------- ia32intrin.h ---------------------------------------------------===
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to deal
   5  * in the Software without restriction, including without limitation the rights
   6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7  * copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19  * THE SOFTWARE.
  20  *
  21  *===-----------------------------------------------------------------------===
  22  */
  23
  24 #ifndef __X86INTRIN_H
  25 #error "Never use <ia32intrin.h> directly; include <x86intrin.h> instead."
  26 #endif
  27
  28 #ifndef __IA32INTRIN_H
  29 #define __IA32INTRIN_H
  30
  31 #ifdef __x86_64__
  32 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
  33 __readeflags(void)
  34 {
  35   unsigned long long __res = 0;
  36   __asm__ __volatile__ ("pushf\n\t"
  37                         "popq %0\n"
  38                         :"=r"(__res)
  39                         :
  40                         :
  41                        );
  42   return __res;
  43 }
  44
  45 static __inline__ void __attribute__((__always_inline__, __nodebug__))
  46 __writeeflags(unsigned long long __f)
  47 {
  48   __asm__ __volatile__ ("pushq %0\n\t"
  49                         "popf\n"
  50                         :
  51                         :"r"(__f)
  52                         :"flags"
  53                        );
  54 }
  55
  56 #else /* !__x86_64__ */
  57 static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
  58 __readeflags(void)
  59 {
  60   unsigned int __res = 0;
  61   __asm__ __volatile__ ("pushf\n\t"
  62                         "popl %0\n"
  63                         :"=r"(__res)
  64                         :
  65                         :
  66                        );
  67   return __res;
  68 }
  69
  70 static __inline__ void __attribute__((__always_inline__, __nodebug__))
  71 __writeeflags(unsigned int __f)
  72 {
  73   __asm__ __volatile__ ("pushl %0\n\t"
  74                         "popf\n"
  75                         :
  76                         :"r"(__f)
  77                         :"flags"
  78                        );
  79 }
  80 #endif /* !__x86_64__ */
  81
  82 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
  83 __rdpmc(int __A) {
  84   return __builtin_ia32_rdpmc(__A);
  85 }
  86
  87 /* __rdtsc */
  88 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
  89 __rdtsc(void) {
  90   return __builtin_ia32_rdtsc();
  91 }
  92
  93 /* __rdtscp */
  94 static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
  95 __rdtscp(unsigned int *__A) {
  96   return __builtin_ia32_rdtscp(__A);
  97 }
  98
  99 #define _rdtsc() __rdtsc()
 100
 101 #endif /* __IA32INTRIN_H */