gcc/testsuite/gcc.target/i386/sse-21.c

   1 /* Test that we don't generate a fisttp instruction when -mno-sse3.  */
   2 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
   3 /* { dg-options "-O -mfpmath=387 -march=nocona -mno-sse3" } */
   4 /* { dg-final { scan-assembler-not "fisttp" } } */
   5 struct foo
   6 {
   7  long a;
   8  long b;
   9 };
  10
  11 extern double c;
  12
  13 extern unsigned long long baz (void);
  14
  15 int
  16 walrus (const struct foo *input)
  17 {
  18     unsigned long long d;
  19
  20     d = baz ()
  21       + (unsigned long long) (((double) input->a * 1000000000
  22                               + (double) input->b) * c);
  23     return (d ? 1 : 0);
  24 }