[Open64-devel] Compiler Error during WHIRL To C phase

[Jairo B. T. <jb...@ac...>]

Hi,

  I get the following error translating whirl IR to C using whirl2c:

fargas:~> cat test.c

 struct s
{
  int a;
  int b;
  int c;
  int d;
  int e;
};


struct s f (void)
{
  struct s ss;
  return ss;
}


fargas:~> sgicc -keep -fe test.c

fargas:~> w2c test.B            
/homeB/cap/wg/open64/nthgen/lib/whirl2c translates test.B into test.w2c.h and test.w2c.c, based on source test.c
### Compiler Error in file test.c during WHIRL To C phase:
### PUinfo_Get_ReturnPreg: more than 2 return registers

  I have found that the number of return registers is computed in common/com/ia64/targ_sim.cxx:Get_Return_Info but I don't know why the limitation of two return registers. With a smaller struct (2 int's for example) everything goes ok. Why this error? Some ideas?

Thanks,
Jairo