sdcc/support/regression/tests/bug-2825.c

   1 /*
   2    bug-2825.c a bug in s08 code generation that overwrote a in left shifts of 32-bit values by literals in the range [3,7];
   3  */
   4
   5 #include <testfwk.h>
   6
   7 unsigned char c;
   8 unsigned long l;
   9
  10 void f(void)
  11 {
  12         unsigned char t = c + 1; // t allocated to a
  13
  14         l <<= 6; // Overwrites a.
  15
  16         if(t != 1)
  17                 f();
  18 }
  19
  20 void testBug(void)
  21 {
  22         c = 0;
  23         l = 1;
  24         f();
  25
  26         ASSERT(l == 1ul << 6);
  27 }
  28