sdcc/support/regression/tests/gcc-torture-execute-pr86714.c

   1 /*
   2    pr86714.c from the execute part of the gcc torture tests.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #include <string.h>
   8
   9 #ifdef __SDCC
  10 #pragma disable_warning 147
  11 #endif
  12
  13 /* PR tree-optimization/86714 - tree-ssa-forwprop.c confused by too
  14    long initializer
  15
  16    The excessively long initializer for a[0] is undefined but this
  17    test verifies that the excess elements are not considered a part
  18    of the value of the array as a matter of QoI.  */
  19
  20 const char a[2][3] = { "1234", "xyz" };
  21 char b[6];
  22
  23 void *pb = b;
  24
  25 void
  26 testTortureExecute (void)
  27 {
  28    memcpy (b, a, 4);
  29    memset (b + 4, 'a', 2);
  30
  31    if (b[0] != '1' || b[1] != '2' || b[2] != '3'
  32        || b[3] != 'x' || b[4] != 'a' || b[5] != 'a')
  33      ASSERT (0);
  34
  35    if (memcmp (pb, "123xaa", 6))
  36      ASSERT (0);
  37
  38    return;
  39 }
  40