gcc/testsuite/gcc.c-torture/execute/20031012-1.c

   1 /* PR optimization/8750
   2    Used to fail under Cygwin with
   3    -O2 -fomit-frame-pointer
   4    Testcase by David B. Trout     */
   5
   6 #if defined(STACK_SIZE) && STACK_SIZE < 16000
   7 #define ARRAY_SIZE (STACK_SIZE / 2)
   8 #define STRLEN     (ARRAY_SIZE - 9)
   9 #else
  10 #define ARRAY_SIZE 15000
  11 #define STRLEN     13371
  12 #endif
  13
  14 extern void *memset (void *, int, __SIZE_TYPE__);
  15 extern void abort (void);
  16
  17 static void foo ()
  18 {
  19     char a[ARRAY_SIZE];
  20
  21     a[0]=0;
  22     memset( &a[0], 0xCD, STRLEN );
  23     a[STRLEN]=0;
  24     if (strlen(a) != STRLEN)
  25       abort ();
  26 }
  27
  28 int main ( int argc, char* argv[] )
  29 {
  30     foo();
  31     return 0;
  32 }