gcc/testsuite/gcc.target/i386/writeeflags-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O0" } */
   3
   4 #include <x86intrin.h>
   5
   6 extern void abort (void);
   7
   8 #ifdef __x86_64__
   9 #define EFLAGS_TYPE unsigned long long int
  10 #else
  11 #define EFLAGS_TYPE unsigned int
  12 #endif
  13
  14 int
  15 main ()
  16 {
  17   EFLAGS_TYPE flags = 0xD7; /* 111010111b  */
  18
  19   __writeeflags (flags);
  20
  21   flags = __readeflags ();
  22
  23   if ((flags & 0xFF) != 0xD7)
  24     abort ();
  25
  26 #ifdef DEBUG
  27     printf ("PASSED\n");
  28 #endif
  29
  30   return 0;
  31 }
  32