gcc/testsuite/gcc.target/i386/pr70465.c

   1 /* PR target/70465 */
   2 /* { dg-do compile { target ia32 } } */
   3 /* { dg-options "-O2 -mfpmath=387 -fomit-frame-pointer" } */
   4 /* { dg-final { scan-assembler-not "fxch\t%st.1" } } */
   5
   6 double
   7 atan2 (double y, double x)
   8 {
   9   double res = 0.0;
  10   asm ("fpatan" : "=t" (res) : "u" (y), "0" (x) : "st(1)");
  11   return res;
  12 }