gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-17.c

   1 /* PR tree-optimization/80497 - ICE at -O1 and above on valid code on
   2    x86_64-linux-gnu in "tree_to_uhwi"
   3    { dg-do compile }
   4    { dg-options "-O2 -Wall -Wformat-overflow" }
   5    { dg-require-effective-target int128 } */
   6
   7 extern char buf[];
   8
   9 const __int128_t sint128_max
  10   = (__int128_t)1 << (sizeof sint128_max * __CHAR_BIT__ - 2);
  11
  12 void fn0 (void)
  13 {
  14   __int128_t si128 = 0;
  15
  16   __builtin_sprintf (buf, "%*i", si128, 0);
  17
  18   __builtin_sprintf (buf, "%.*i", si128, 0);
  19
  20   __builtin_sprintf (buf, "%i", si128);
  21
  22   __builtin_sprintf (buf, "%2$*1$i", si128, 0);
  23
  24   __builtin_sprintf (buf, "%2$.*1$i", si128, 0);
  25 }
  26
  27 void fn1 (void)
  28 {
  29   __int128_t si128 = sint128_max;
  30
  31   __builtin_sprintf (buf, "%*i", si128, 0);
  32
  33   __builtin_sprintf (buf, "%.*i", si128, 0);
  34
  35   __builtin_sprintf (buf, "%i", si128);
  36
  37   __builtin_sprintf (buf, "%2$*1$i", si128, 0);
  38
  39   __builtin_sprintf (buf, "%2$.*1$i", si128, 0);
  40 }
  41
  42 /* { dg-prune-output "expects argument of type .int." } */