/* Demonstrates the aliasing problem with the z80 port when loop   induction is turned on.  Run_Index and Int_2_Loc get joined into   the same spill location.   Stripped down version of dhry.c */#include <testfwk.h>#define NOENUM		1#define NOSTRUCTASSIGN	1#define REG#define Ident_2 1typedef int   Enumeration;typedef int     One_Fifty;typedef char    Capital_Letter;char            Ch_2_Glob;Enumeration Func_1 (Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val);voidtestDhry(void){    One_Fifty       Int_1_Loc;    REG   One_Fifty       Int_2_Loc;    One_Fifty       Int_3_Loc;    REG   Capital_Letter Ch_Index;    Enumeration     Enum_Loc;    REG   int             Run_Index;    REG   int             Number_Of_Runs;    /* Must be more than 13... */    Number_Of_Runs = 50;    /* Main test loop */    for (Run_Index = 1; Run_Index <= Number_Of_Runs; ++Run_Index) {	Int_1_Loc = 2;	Int_2_Loc = 3;	Enum_Loc = Ident_2;        /* Removing this section removes the problem. */	while (Int_1_Loc < Int_2_Loc)	    {		Int_3_Loc = 5 * Int_1_Loc - Int_2_Loc;		Int_1_Loc += 1;	    }        /* Removing this section removes the problem. */	for (Ch_Index = 'A'; Ch_Index <= Ch_2_Glob; ++Ch_Index)	    {		if (Enum_Loc == Func_1 (Ch_Index, 'C'))		    {			Int_2_Loc = Run_Index;		    }	    }        /* Removing any one of the following lines removes the problem. */	Int_2_Loc = Int_2_Loc * Int_1_Loc;	Int_1_Loc = Int_2_Loc / Int_3_Loc;	Int_2_Loc = 7 * (Int_2_Loc - Int_3_Loc) - Int_1_Loc;    }}Enumeration Func_1 (Capital_Letter Ch_1_Par_Val, Capital_Letter Ch_2_Par_Val){    UNUSED(Ch_1_Par_Val);    UNUSED(Ch_2_Par_Val);    return 0;}