Compiler Crashed on Specific Macro

I tried the code snippets, that you have posted with the C51 V7.20. The macro is expanded like yours and the object file is generated correctly. There must be anything special that you do in your code.

#define min(a,b)       (((a) < (b)) ? (a) : (b))

void test (void) {
  int xfr_cnt;
  int to_xfer = 1;
  int secsize = 4;
  int boff    = 2;
  xfr_cnt = min(to_xfer, secsize-boff);
}

I tried the code snippets, that you have posted with the C51 V7.20. The macro is expanded like yours and the object file is generated correctly. There must be anything special that you do in your code.

#define min(a,b)       (((a) < (b)) ? (a) : (b))

void test (void) {
  int xfr_cnt;
  int to_xfer = 1;
  int secsize = 4;
  int boff    = 2;
  xfr_cnt = min(to_xfer, secsize-boff);
}