sdcc/support/regression/tests/bug-2305.c

   1 /*
   2    bug-2305.c register packing optimized away the assignment even though code generation for left shift cannot deal with sfr result operand.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #if !defined(PORT_HOST) && !defined(__SDCC_hc08) && !defined(__SDCC_s08) && !defined(__SDCC_mos6502) && !defined(__SDCC_mos65c02) && !defined(__SDCC_sm83) && !defined(__SDCC_stm8) && !defined(__SDCC_tlcs90) && !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) && !defined(__SDCC_f8)
   8 __sfr __at 0xF4 fd_select;
   9
  10 static void foo(unsigned char x)
  11 {
  12         fd_select = 1 << x;
  13 }
  14
  15 static void bar(unsigned char x)
  16 {
  17         unsigned char a = 1 << x;
  18         fd_select = a;
  19 }
  20 #endif
  21
  22 void testBug(void)
  23 {
  24 }
  25