sdcc/support/regression/tests/bug-2376.c

   1 /*
   2    bug-2195.c
   3
   4    A peephole optimizer bug in calls to __z88dk_fastcall.
   5 */
   6
   7 #include <string.h>
   8 #include <testfwk.h>
   9
  10 char v[5];
  11
  12 void kputchar(unsigned char c) __z88dk_fastcall
  13 {
  14   static int i;
  15   v[i++] = c;
  16 }
  17
  18 void kputs(const char *p) __z88dk_fastcall
  19 {
  20   while(*p)
  21     kputchar(*p++); /* The bug resulted in the peephole optimizer optimizing out the parameter to this call */
  22 }
  23
  24 void testBug(void)
  25 {
  26   const char *s = "test";
  27   kputs(s);
  28   ASSERT(!strcmp(s, v));
  29 }
  30