Allow basic arithmetic operations for vectors

src/ir_print.cpp

@@ -1700,7 +1700,7 @@ void ir_print_instr(irFileBuffer *f, irModule *m, irValue *value) {
 	case irInstr_BinaryOp: {
 		irInstrBinaryOp *bo = &value->Instr.BinaryOp;
 		Type *type = base_type(ir_type(bo->left));
-		Type *elem_type = type;
+		Type *elem_type = base_array_type(type);
 
 		ir_fprintf(f, "%%%d = ", value->index);
 

src/types.cpp

@@ -974,11 +974,20 @@ bool is_type_poly_proc(Type *t) {
 	t = base_type(t);
 	return t->kind == Type_Proc && t->Proc.is_polymorphic;
 }
+bool is_type_simd_vector(Type *t) {
+	t = base_type(t);
+	return t->kind == Type_SimdVector;
+}
+
 Type *base_array_type(Type *t) {
 	if (is_type_array(t)) {
 		t = base_type(t);
 		return t->Array.elem;
 	}
+	if (is_type_simd_vector(t)) {
+		t = base_type(t);
+		return t->SimdVector.elem;
+	}
 	return t;
 }
 
@@ -987,10 +996,6 @@ bool is_type_generic(Type *t) {
 	return t->kind == Type_Generic;
 }
 
-bool is_type_simd_vector(Type *t) {
-	t = base_type(t);
-	return t->kind == Type_SimdVector;
-}
 
 
 Type *core_array_type(Type *t) {