fixed bug #514865

[fw/sdcc] / src / SDCCast.c

diff --git a/src/SDCCast.c b/src/SDCCast.c
index ff46ece9a0a5353603a08d744c21ba40bdcad498..ea0a777a498fc085e726dcb19d2f26c62581b92a 100644 (file)
--- a/src/SDCCast.c
+++ b/src/SDCCast.c
@@ -2655,6 +2655,15 @@ decorateType (ast * tree)
                                   tree->opval.val->type);
          return tree;
        }
+      /* a left shift must be done with at least 16bits */
+      if ((tree->opval.op==LEFT_OP) && (getSize(LTYPE(tree))<2)) {
+       // insert a cast
+       tree->left = 
+         decorateType (newNode (CAST,
+                                newAst_LINK(copyLinkChain(LTYPE(tree))),
+                                tree->left));
+       SPEC_NOUN(tree->left->left->ftype)=V_INT;
+      }
       /* if only the right side is a literal & we are
          shifting more than size of the left operand then zero */
       if (IS_LITERAL (RTYPE (tree)) &&