sdcc/support/regression/tests/bug-3081.c

   1 /* bug-3081.c
   2    z80 backend inserted extra whitespace in call via __z88dk_fastcall function pointer
   3    for --reserve-regs-iy, confusing peephole optimizer
   4  */
   5
   6
   7 #include <testfwk.h>
   8
   9 #pragma disable_warning 283
  10
  11 #include <stdint.h>
  12
  13 #if defined(__SDCC_mcs51) || defined(__SDCC_pdk14) || defined(__SDCC_pdk15)
  14 #ifdef __z88dk_fastcall
  15 #undef __z88dk_fastcall
  16 #endif
  17 #define __z88dk_fastcall __reentrant
  18 #elif !(defined(__SDCC_z80) || defined(__SDCC_z180))
  19 #define __z88dk_fastcall
  20 #endif
  21
  22 short example(short x) __z88dk_fastcall
  23 {
  24     return x+1;
  25 }
  26
  27 short (*ifunc)(short arg) __z88dk_fastcall;
  28
  29 int m()
  30 {
  31     int i, sum;
  32     ifunc = example;
  33     sum = 0;
  34     for (i = 0; i < 42; ++i)
  35         sum += (ifunc)(i);
  36     return sum;
  37 }
  38
  39 void
  40 testBug(void)
  41 {
  42 }
  43