gnu/dist/gcc4/gcc/testsuite/gcc.target/ia64/20030811-1.c

   1 /* Origin: PR target/11693 from Andreas Schwab <schwab@suse.de> */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -frename-registers" } */
   4
   5 static inline unsigned long long
   6 foo (void)
   7 {
   8   unsigned long long x;
   9   __asm__ __volatile__ ("" : "=r" (x) :: "memory");
  10   return x;
  11 }
  12
  13 static inline void
  14 bar (unsigned long long x, unsigned long long y)
  15 {
  16   __asm__ __volatile__ ("" :: "r"(x), "r"(y) : "memory");
  17 }
  18
  19 static inline void
  20 baz (unsigned long long x, unsigned long long y, unsigned long long z,
  21      unsigned long long p, unsigned long long q)
  22 {
  23   __asm__ __volatile__ ("" :: "r" (q << 2) : "memory");
  24   __asm__ __volatile__ ("" :: "r" (z) : "memory");
  25   if (x & 0x1)
  26     __asm__ __volatile__ ("" :: "r" (y), "r" (p) : "memory");
  27   if (x & 0x2)
  28     __asm__ __volatile__ ("" :: "r" (y), "r" (p) : "memory");
  29 }
  30
  31 static inline unsigned long long
  32 ffz (unsigned long long x)
  33 {
  34   unsigned long long r;
  35   __asm__ ("" : "=r" (r) : "r" (x & (~x - 1)));
  36   return r;
  37 }
  38
  39 void die (const char *, ...) __attribute__ ((noreturn));
  40
  41 void
  42 test (void *x)
  43 {
  44   unsigned long long a, c;
  45
  46   a = foo ();
  47   bar (0xc000000000000000LL, 0x660);
  48   bar (0xa00000000000c000LL, 0x539);
  49   baz (2, 1, 0xa000000000008000LL,
  50        ({ unsigned long long b;
  51           b = ({ unsigned long long d; __asm__ ("" : "=r" (d) : "r" (x)); d; })
  52               + 0x10000000000661LL;
  53           b;
  54         }),
  55        14);
  56   c = ffz (0x1fffffffffffffffLL);
  57   if (c < 51 || c > 61)
  58     die ("die", c - 1);
  59 }