Path: utzoo!telly!ddsw1!lll-winken!killer!mit-eddie!bloom-beacon!tut.cis.ohio-state.edu!MCC.COM!rfg
From: rfg@MCC.COM (Ron Guilmette)
Newsgroups: gnu.g++.bug
Subject: Bug in G++ 1.32.0 ... illegal m68k assembly code generated.
Message-ID: <8901110123.AA16339@riunite.aca.mcc.com>
Date: 11 Jan 89 01:23:40 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 55


The following short (34 line) example program, when compiled with G++ 1.32.0,
causes the sun3 assembler to issue a (valid) error message.

This does not occur if the same file is compiled using GCC 1.32.

The error is that a BFINS instruction is generated whose first operand
is a (68K) ADDRESS register rather than a DATA register.

links:
	md		== m68k.md
	aux-output.c	== output-m68k.c
	config-h	== xm-m68k.h
	tm.h		== ----------------------------------------------------
			   |  #define DOLLARS_IN_IDENTIFIERS 1
			   |  #define INTEGRATE_THRESHOLD(DECL) 300
			   |  #include "tm-sun3+.h"
			   ----------------------------------------------------


/* ------------------------------ cut here --------------------------------- */
struct Node {
    union {
	struct {
	    unsigned
	        mark: 1,
                print: 1,
	        type: 6,
	        val: 24;
	} p;
    } uu;
};
typedef struct Node NODE;

inline NODE* newnode(int type, int size)
{
    NODE *nnode;

    nnode = (NODE *) 0xff;
    return (nnode);
}
inline NODE *cons(NODE *x, NODE *y)
{
    NODE *val;

    val = newnode(3,7);
    return (val);
}
void xlbind(NODE *sym, NODE *val, NODE *env)
{
    register NODE *ptr;

    (((NODE*)((NODE*)env)->uu.p.val) = ptr) ;
    (((NODE*)((NODE*)ptr)->uu.p.val) = (cons(sym,val))) ;
}