- Changed keep logic: all nodes can be keeped yet, thi is necessary to fix fehler152

[libfirm] / ir / ir / irmode.c

diff --git a/ir/ir/irmode.c b/ir/ir/irmode.c
index 0a41285..b59c13c 100644 (file)
--- a/ir/ir/irmode.c
+++ b/ir/ir/irmode.c
@@ -536,11 +536,11 @@ int smaller_mode(const ir_mode *sm, const ir_mode *lm) {
        case irms_int_number:
                switch (get_mode_sort(lm)) {
                case irms_int_number:
-                       if(get_mode_arithmetic(sm) != get_mode_arithmetic(lm))
+                       if (get_mode_arithmetic(sm) != get_mode_arithmetic(lm))
                                return 0;
 
                        /* only two complement implemented */
-                       assert(get_mode_arithmetic(sm)==irma_twos_complement);
+                       assert(get_mode_arithmetic(sm) == irma_twos_complement);
 
                        /* integers are convertable if
                         *   - both have the same sign and lm is the larger one
@@ -548,12 +548,12 @@ int smaller_mode(const ir_mode *sm, const ir_mode *lm) {
                         *     (one for the sign, one for the highest bit of sm)
                         *   - sm & lm are two_complement and lm has greater or equal number of bits
                         */
-                       if(mode_is_signed(sm)) {
-                               if(!mode_is_signed(lm))
+                       if (mode_is_signed(sm)) {
+                               if (!mode_is_signed(lm))
                                        return 0;
                                return sm_bits <= lm_bits;
                        } else {
-                               if(mode_is_signed(lm)) {
+                               if (mode_is_signed(lm)) {
                                        return sm_bits < lm_bits;
                                }
                                return sm_bits <= lm_bits;
@@ -843,7 +843,11 @@ void init_mode(void) {
 ir_mode *find_unsigned_mode(const ir_mode *mode) {
        ir_mode n = *mode;
 
-       assert(mode->sort == irms_int_number);
+       /* allowed for reference mode */
+       if (mode->sort == irms_reference)
+               n.sort = irms_int_number;
+
+       assert(n.sort == irms_int_number);
        n.sign = 0;
        return find_mode(&n);
 }