sdcc/support/regression/tests/bug-2752.c

   1 /*
   2    bug-2752.c
   3    A bug in inlining of reentrant functions into nonreentrant functions in the mcs51 backend.
   4  */
   5
   6 #include <testfwk.h>
   7
   8 #include <stdint.h>
   9
  10 inline uint8_t test(uintptr_t addr) __reentrant
  11 {
  12         return *(volatile uint8_t __xdata *)(addr);
  13 }
  14
  15 __xdata uint8_t dat1;
  16 uint8_t dat2;
  17
  18 void call(void) /* Unbalanced stack pointer in this function */
  19 {
  20         dat2 = test((uintptr_t)(&dat1));
  21 }
  22
  23 void testBug(void)
  24 {
  25         dat1 = 0x5a;
  26         call();
  27         ASSERT (dat2 == 0x5a);
  28 }
  29
  30 extern uint8_t test(uintptr_t addr) __reentrant;
  31