shithub: scc

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Add symbol flag in Symbol

This flag help to detect when a node is a symbol.

--- a/cc1.h

+++ b/cc1.h

@@ -193,6 +193,7 @@

 	uint8_t typeop;

 	struct {

 		bool lvalue : 1;

+		bool symbol: 1;

 	} b;

 	union unode {

 		Symbol *sym;

--- a/code.c

+++ b/code.c

@@ -57,7 +57,7 @@

 	np->utype = UNQUAL(tp);

 	np->typeop = np->utype->op;

 	np->u = u;

-	np->b.lvalue = 0;

+	np->b.symbol = np->b.lvalue = 0;

 	return np;

 }

@@ -246,5 +246,9 @@

 Node *

 constcode(Symbol *sym)

 {

-	return node(emitconst, inttype, SYM(sym), 0);

+	Node *np;

+

+	np = node(emitconst, inttype, SYM(sym), 0);

+	np->b.symbol = 1;

+	return np;

 }

--- a/expr.c

+++ b/expr.c

@@ -355,7 +355,7 @@

 		if ((sym = yylval.sym) == NULL)

 			error("'%s' undeclared", yytext);

 		np = node(emitsym, sym->type, SYM(sym), 0);

-		np->b.lvalue = 1;

+		np->b.symbol = np->b.lvalue = 1;

 		next();

 		break;

 	case CONSTANT: