sdcc/support/regression/tests/gcc-torture-execute-pr47148.c

   1 /*
   2    pr47148.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 /* PR tree-optimization/47148 */
  12
  13 static inline unsigned
  14 bar (unsigned x, unsigned y)
  15 {
  16   if (y >= 32)
  17     return x;
  18   else
  19     return x >> y;
  20 }
  21
  22 static unsigned a = 1, b = 1;
  23
  24 static inline void
  25 foo (unsigned char x, unsigned y)
  26 {
  27   if (!y)
  28     return;
  29   unsigned c = (0x7000U / (x - 2)) ^ a;
  30   unsigned d = bar (a, a);
  31   b &= ((a - d) && (a - 1)) + c;
  32 }
  33
  34 void
  35 testTortureExecute (void)
  36 {
  37   foo (1, 1);
  38   foo (-1, 1);
  39   if (b && ((unsigned char) -1) == 255)
  40     ASSERT (0);
  41   return;
  42 }
  43