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Convert pcompare() to use new fields of type

--- a/cc1/expr.c

+++ b/cc1/expr.c

@@ -336,18 +336,21 @@

 static Node *

 pcompare(char op, Node *lp, Node *rp)

 {

-	switch (BTYPE(rp)) {

-	case INT:

-		if (cmpnode(rp, 0))

-			rp = convert(rp, pvoidtype, 1);

-		break;

-	case PTR:

-		if (lp->type != rp->type)

-			warn("comparision between different pointer types");

-		break;

-	default:

-		errorp("incompatibles type in comparision");

+	Node *np;

+	int err = 0;

+

+	if (rp->type->integer) {

+		if (!cmpnode(rp, 0))

+			err = 1;

+		rp = convert(rp, pvoidtype, 1);

+	} else if (rp->type->op == PTR) {

+		if (!eqtype(lp->type, rp->type))

+			err = 1;

+	} else {

+		err = 1;

 	}

+	if (err)

+		errorp("incompatibles type in comparision");

 	return simplify(op, inttype, lp, rp);

 }