sdcc/support/regression/tests/gcc-torture-execute-struct-cpy-1.c

   1 /*
   2 struct-cpy-1.c from the execute part of the gcc torture tests.
   3 */
   4
   5 #include <testfwk.h>
   6
   7 /* powerpc64-linux gcc miscompiled this due to rs6000.c:expand_block_move
   8    not setting mem aliasing info correctly for the code implementing the
   9    structure assignment.  */
  10
  11 struct termios
  12 {
  13   unsigned int a;
  14   unsigned int b;
  15   unsigned int c;
  16   unsigned int d;
  17   unsigned char pad[28];
  18 };
  19
  20 struct tty_driver
  21 {
  22   unsigned char pad1[38];
  23   struct termios t;
  24 };
  25
  26 #if !(defined(__SDCC_mcs51) && defined(__SDCC_MODEL_SMALL)) && !defined(__SDCC_pdk14) // Lack of memory
  27 static struct termios zero_t;
  28 static struct tty_driver pty;
  29
  30 void ini (void)
  31 {
  32   pty.t = zero_t;
  33   pty.t.a = 1;
  34   pty.t.b = 2;
  35   pty.t.c = 3;
  36   pty.t.d = 4;
  37 }
  38 #endif
  39
  40 void
  41 testTortureExecute (void)
  42 {
  43 #if !(defined(__SDCC_mcs51) && defined(__SDCC_MODEL_SMALL)) && !defined(__SDCC_pdk14) // Lack of memory
  44   ini ();
  45   if (pty.t.a != 1
  46       || pty.t.b != 2
  47       || pty.t.c != 3
  48       || pty.t.d != 4)
  49     ASSERT (0);
  50 #endif
  51   return;
  52 }