gcc/testsuite/gcc.target/x86_64/abi/callabi/vaarg-5b.c

   1 /* Test for cross x86_64<->w64 abi va_list calls.  */
   2 /* { dg-options "-O2 -mabi=ms -std=gnu99 -fno-builtin" } */
   3
   4 #include <stdarg.h>
   5
   6 #define SZ_ARGS 1ll,2ll,3ll,4ll,5ll,6ll,7ll,0ll
   7
   8 static int __attribute__ ((sysv_abi))
   9 fct1 (va_list argp, ...)
  10 {
  11   long long p1,p2;
  12   int ret = 1;
  13   __builtin_sysv_va_list argp_2;
  14
  15   __builtin_sysv_va_start (argp_2, argp);
  16   do {
  17     p1 = va_arg (argp_2, long long);
  18     p2 = va_arg (argp, long long);
  19     if (p1 != p2)
  20       ret = 0;
  21   } while (ret && p1 != 0);
  22   __builtin_sysv_va_end (argp_2);
  23
  24   return ret;
  25 }
  26
  27 int
  28 fct2 (int dummy, ...)
  29 {
  30   va_list argp;
  31   int ret = dummy;
  32
  33   va_start (argp, dummy);
  34   ret += fct1 (argp, SZ_ARGS);
  35   va_end (argp);
  36   return ret;
  37 }