shithub: scc

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Fix correct order of children in cc2

cc2 was building an incorrect tree because it was changing left
and right, generating the inverse tree.

--- a/cc2/cgen.c

+++ b/cc2/cgen.c

@@ -1,4 +1,5 @@

+#include <assert.h>

 #include <stdarg.h>

 #include <stdint.h>

 #include <stdlib.h>

@@ -117,9 +118,10 @@

 	switch (np->op) {

 	case OADD:

-		if (lp->op == CONST) {

-			off = rp->u.sym->u.v.off;

-			imm = lp->u.imm;

+		if (rp->op == CONST) {

+			/*  TODO: check that it is AUTO */

+			off = lp->u.sym->u.v.off;

+			imm = rp->u.imm;

 			emit(LDI, A, imm&0xFF);

 			emit(ADDX, A, IX, -(off+1));

 			emit(LD, L, A);

--- a/cc2/parser.c

+++ b/cc2/parser.c

@@ -210,8 +210,8 @@

 {

 	Node *np = newnode();

-	np->left = pop();

 	np->right = pop();

+	np->left = pop();

 	np->type = gettype(token+1);

 	np->op = token[0];

 	push(np);

-- 

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