scc

commit 9b1eafb87ca51b32030a2a53bed3f2170bf2f936
parent 7a2a1f936d8ca77484fa4ddb3b1244ecd350a8b5
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 13 Aug 2015 16:14:55 +0200

Fix type comparision

Field n.elem cannot be used until we know that it is a field used
in the type, so we have to check first the op of the type.
This problem was generating errors in pointer type comparision.

Diffstat:
M
cc1/types.c
 | 
6
++++--

1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/cc1/types.c b/cc1/types.c
@@ -337,15 +337,17 @@ eqtype(Type *tp1, Type *tp2)
 		return 0;
 	if (tp1 == tp2)
 		return 1;
-	if (tp1->op != tp2->op || tp1->n.elem != tp2->n.elem)
-		return 0;
 	switch (tp1->op) {
 	case ARY:
+		if (tp1->op != tp2->op || tp1->n.elem != tp2->n.elem)
+			return 0;
 	case PTR:
 		return eqtype(tp1->type, tp2->type);
 	case UNION:
 	case STRUCT:
 	case FTN:
+		if (tp1->op != tp2->op || tp1->n.elem != tp2->n.elem)
+			return 0;
 		p1 = tp1->pars, p2 = tp2->pars;
 		for (n = tp1->n.elem; n > 0; --n) {
 			if (!eqtype(*p1++, *p2++))