hppa-O1/vfprintf.i

   1 static void __lll_mutex_lock(int *futex)
   2 {
   3         int lws_errno = 14;
   4         int lws_ret;
   5         asm (
   6 "0:                                     \n\t"
   7 "copy   %3, %%r26                       \n\t"
   8 "copy   %4, %%r25                       \n\t"
   9 "copy   %5, %%r24                       \n\t"
  10 "ble    " "0xb0" "(%%sr2, %%r0)         \n\t"
  11 "ldi    " "0" ", %%r20          \n\t"
  12 "cmpib,=,n " "11" ",%%r21,0b    \n\t"
  13 "nop                                    \n\t"
  14 "copy   %%r28, %0       /* here */              \n\t"
  15 "sub    %%r0, %%r21, %%r21              \n\t"
  16 "copy   %%r21, %1       /* here */              \n\t"
  17 : "=r" (lws_ret), "=r"(lws_errno), "=m"(*futex)
  18 : "r"(futex), "r"(0), "r"(1)
  19 :"r1", "r26", "r25", "r24", "r23", "r22", "r21", "r20", "r28", "r31", "memory"
  20 );
  21 }
  22 typedef struct {
  23         char *_IO_write_end;
  24         int lock;
  25 } _IO_FILE;
  26 __attribute__ ((__nothrow__)) __attribute__ ((noinline))
  27 static int buffered_vfprintf(_IO_FILE *s)
  28 {
  29         char buf[8192];
  30         _IO_FILE *hp;
  31         hp->_IO_write_end = buf;
  32         __lll_mutex_lock(&s->lock);
  33 }
  34 void foo(_IO_FILE *s)
  35 {
  36         buffered_vfprintf(s);
  37 }