scc

commit d6ff7f1f2ae3daa13b2d910ff41b6bc4d982d087
parent f8e816da535fa77a818bf85ac8ce0ab879ef1e84
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Fri,  8 Aug 2014 15:12:41 +0200

Add stub of addresability of OADD and OSUB

This is only a stub, and it is not clear what I have to do, but
it is first step.

Diffstat:
M
cc2/cc2.h
 | 
2
++
M
cc2/cgen.c
 | 
8
++++++++

2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/cc2/cc2.h b/cc2/cc2.h
@@ -43,6 +43,8 @@ enum nerrors {
 #define STATIC 'S'
 #define CONST '#'
 #define LABEL 'L'
+#define OADD  '+'
+#define OSUB  '-'
 
 extern void error(unsigned nerror, ...);
 extern void genaddable(Node *list[]);
diff --git a/cc2/cgen.c b/cc2/cgen.c
@@ -15,11 +15,15 @@
 static void
 xaddable(Node *np)
 {
+	Node *lp, *rp;
+
 	if (!np)
 		return;
 
 	np->complex = 0;
 	np->addable = 0;
+	lp = np->left;
+	rp = np->right;
 	switch (np->op) {
 	case AUTO:
 		np->addable = 11;
@@ -33,6 +37,10 @@ xaddable(Node *np)
 	case CONST:
 		np->addable = 20;
 		break;
+	case OADD:
+	case OSUB:
+		xaddable(lp);
+		xaddable(rp);
 	}
 }