only get mode if needed

[r18595]

diff --git a/ast2firm.c b/ast2firm.c
index e081b1d..d6198f7 100644 (file)
--- a/ast2firm.c
+++ b/ast2firm.c
@@ -1084,7 +1084,6 @@ static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
 {
        dbg_info *dbgi = get_dbg_info(&expression->expression.source_position);
        type_t   *type = skip_typeref(expression->expression.datatype);
-       ir_mode  *mode = get_ir_mode(type);
 
        if(expression->expression.type == EXPR_UNARY_TAKE_ADDRESS)
                return expression_to_addr(expression->value);
@@ -1093,13 +1092,18 @@ static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
        ir_node            *value_node = expression_to_firm(value);
 
        switch(expression->expression.type) {
-       case EXPR_UNARY_NEGATE:
+       case EXPR_UNARY_NEGATE: {
+               ir_mode *mode = get_ir_mode(type);
                return new_d_Minus(dbgi, value_node, mode);
+       }
        case EXPR_UNARY_PLUS:
                return value_node;
-       case EXPR_UNARY_BITWISE_NEGATE:
+       case EXPR_UNARY_BITWISE_NEGATE: {
+               ir_mode *mode = get_ir_mode(type);
                return new_d_Not(dbgi, value_node, mode);
+       }
        case EXPR_UNARY_NOT: {
+               ir_mode *mode = get_ir_mode(type);
                if(get_irn_mode(value_node) != mode_b) {
                        value_node = create_conv(dbgi, value_node, mode_b);
                }
@@ -1122,12 +1126,15 @@ static ir_node *unary_expression_to_firm(const unary_expression_t *expression)
        case EXPR_UNARY_PREFIX_DECREMENT:
                return create_incdec(expression);
        case EXPR_UNARY_CAST: {
-               ir_node *node = create_conv(dbgi, value_node, get_ir_mode(type));
+               ir_mode *mode = get_ir_mode(type);
+               ir_node *node = create_conv(dbgi, value_node, mode);
                node = do_strict_conv(dbgi, node);
                return node;
        }
-       case EXPR_UNARY_CAST_IMPLICIT:
-               return create_conv(dbgi, value_node, get_ir_mode(type));
+       case EXPR_UNARY_CAST_IMPLICIT: {
+               ir_mode *mode = get_ir_mode(type);
+               return create_conv(dbgi, value_node, mode);
+       }
 
        default:
                break;