asm-function-1.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 52 行

/* APPLE LOCAL file CW asm blocks */
/* Test whole asm functions.  */

/* { dg-do run { target powerpc*-*-* } } */
/* { dg-options "-fasm-blocks -O2" } */

void abort(void);

asm int
foo (register int argx, register int argy)
{
  add r3, argx, argy
}

#define rsltreg r3

asm int
foo1 (register int argx, register int argy)
{
  register int loc1, loc2;
  nop
    li loc1, 100
    li rsltreg,0
    b @a34
  add rsltreg, argx, argy
@a34
    add rsltreg, rsltreg, loc1
    blr
}

extern asm int foo2(int x, float y)
{
#pragma unused(x)
#pragma unused(x,y)
  li rsltreg, 48;
#pragma unused(y)
  nop
#pragma unused(x)
}

int
main ()
{
  if (foo (22, 23) != 45)
    abort ();
  if (foo1 (1, 2) != 100)
    abort ();
  if (foo2 (100, 1.2) != 48)
    abort ();
  return 0;
}