sdcc/support/regression/tests/bug-2995.c

   1 /** bug-2995.c
   2     Getting the address of an object in a named address space was
   3     considered a read access of that space resulting in inefficiencies
   4     (i.e. unnecessary calls to the function for switching address spaces).
   5 */
   6
   7 #include <testfwk.h>
   8 #include <stdbool.h>
   9
  10 bool a_accessed, b_accessed;
  11
  12 void set_a(void)
  13 {
  14   a_accessed = true;
  15 }
  16
  17 void set_b(void)
  18 {
  19   b_accessed = true;
  20 }
  21
  22 #if !defined(PORT_HOST) && !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) && !defined(__SDCC_mcs51) // For pdk14, pdk15 and mcs51: Need to pass segment ordering to linker somehow, to place space_a somewhere in RAM.
  23 __addressmod set_a space_a;
  24 __addressmod set_b space_b;
  25
  26 space_a int i;
  27 space_a int *space_b j;
  28 #endif
  29
  30 void testSpace(void)
  31 {
  32 #if !defined(PORT_HOST) && !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) && !defined(__SDCC_mcs51)
  33   j = &i;
  34   ASSERT (!a_accessed);
  35   ASSERT (b_accessed);
  36 #endif
  37 }
  38