Fixed and simplified rot matcher

[libfirm] / ir / tv / tv.c

diff --git a/ir/tv/tv.c b/ir/tv/tv.c
index b665375..fde85a6 100644 (file)
--- a/ir/tv/tv.c
+++ b/ir/tv/tv.c
@@ -1458,9 +1458,9 @@ tarval *tarval_shrs(tarval *a, tarval *b) {
 }
 
 /*
- * bitwise rotation
+ * bitwise rotation to left
  */
-tarval *tarval_rot(tarval *a, tarval *b) {
+tarval *tarval_rotl(tarval *a, tarval *b) {
        char *temp_val = NULL;
 
        assert(a);
@@ -1480,7 +1480,7 @@ tarval *tarval_rot(tarval *a, tarval *b) {
        } else
                temp_val = (char*)b->value;
 
-       sc_rot(a->value, temp_val, get_mode_size_bits(a->mode), mode_is_signed(a->mode), NULL);
+       sc_rotl(a->value, temp_val, get_mode_size_bits(a->mode), mode_is_signed(a->mode), NULL);
        return get_tarval(sc_get_buffer(), sc_get_buffer_length(), a->mode);
 }
 
@@ -1564,7 +1564,11 @@ int tarval_snprintf(char *buf, size_t len, tarval *tv) {
        case irms_control_flow:
        case irms_memory:
        case irms_auxiliary:
-               return snprintf(buf, len, "<TV_OVERFLOW_BAD>");
+               if (tv == tarval_bad)
+                       return snprintf(buf, len, "<TV_BAD>");
+               if (tv == tarval_undefined)
+                       return snprintf(buf, len, "<TV_UNDEF>");
+               return snprintf(buf, len, "<TV_???>");
        }
 
        return 0;