sdcc/support/regression/tests/gcc-torture-execute-20080522-1.c

   1 /*
   2    20080522-1.c from the execute part of the gcc torture tests.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 /* This testcase is to make sure we have i in referenced vars and that we
  12    properly compute aliasing for the loads and stores.  */
  13
  14 static int i;
  15 static int *p = &i;
  16
  17 int
  18 foo(int *q)
  19 {
  20   *p = 1;
  21   *q = 2;
  22   return *p;
  23 }
  24
  25 int
  26 bar(int *q)
  27 {
  28   *q = 2;
  29   *p = 1;
  30   return *q;
  31 }
  32
  33 void
  34 testTortureExecute (void)
  35 {
  36   int j = 0;
  37
  38   if (foo(&i) != 2)
  39     ASSERT (0);
  40   if (bar(&i) != 1)
  41     ASSERT (0);
  42   if (foo(&j) != 1)
  43     ASSERT (0);
  44   if (j != 2)
  45     ASSERT (0);
  46   if (bar(&j) != 2)
  47     ASSERT (0);
  48   if (j != 2)
  49     ASSERT (0);
  50
  51   return;
  52 }
  53