gcc/testsuite/gcc.target/i386/pr39058.c

   1 /* PR inline-asm/39058 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 double
   6 f1 ()
   7 {
   8   double x;
   9   asm ("" : "=r,r" (x) : "0,0" (x));
  10   return x;
  11 }
  12
  13 double
  14 f2 ()
  15 {
  16   double x;
  17   asm ("" : "=r" (x) : "0" (x));
  18   return x;
  19 }
  20
  21 double
  22 f3 ()
  23 {
  24   double x, y;
  25   asm ("" : "=r,r" (x), "=r,r" (y) : "%0,0" (x), "r,r" (0));
  26   return x;
  27 }
  28
  29 double
  30 f4 ()
  31 {
  32   double x, y;
  33   asm ("" : "=r" (x), "=r" (y) : "0" (x), "r" (0));
  34   return x;
  35 }