sdcc/support/regression/tests/bug-3132.c

   1 /*
   2    bug-3132.c
   3    A bug in pdk code generation for jump on & if all bytes of the mask are 0xff or 0x00 and the highest byte is 0x00.
   4  */
   5
   6 #include <testfwk.h>
   7
   8 #include <stdint.h>
   9
  10 volatile uint8_t block = 0;
  11
  12 void f(void)
  13 {
  14
  15   for( uint16_t t=0; t<0x101; t++ )
  16   {
  17     if( 0 == (t&0xFF) ) // BUG: this compare is compiled to "if( 0 == t )"
  18       block++;
  19   }
  20 }
  21
  22 void
  23 testBug (void)
  24 {
  25   f();
  26   ASSERT (block == 2);
  27 }
  28