gnu/dist/gcc4/gcc/testsuite/gcc.target/i386/asm-4.c

   1 /* Test if functions marked __attribute__((used)), but with address never
   2    taken in C code, don't use alternate calling convention for local
   3    functions on IA-32.  */
   4 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
   5 /* { dg-options "-O2" } */
   6
   7 extern void abort (void);
   8
   9 static int foo (int, int, int, int) __asm ("foo");
  10 static __attribute__((noinline, used)) int
  11 foo (int i, int j, int k, int l)
  12 {
  13   return i + j + k + l;
  14 }
  15
  16 void
  17 bar (void)
  18 {
  19   if (foo (1, 2, 3, 4) != 10)
  20     abort ();
  21 }
  22
  23 int (*fn) (int, int, int, int);
  24
  25 void
  26 baz (void)
  27 {
  28   __asm ("movl $foo, %k0" : "=r" (fn));
  29   if (fn (2, 3, 4, 5) != 14)
  30     abort ();
  31 }
  32
  33 int
  34 main (void)
  35 {
  36   bar ();
  37   baz ();
  38   return 0;
  39 }