* src/SDCCast.c (addCast): added promotion for bit variables
(decorateType): emit W_COMPLEMENT before the problem vanishes behind
- promotion casts
+ promotion casts + optimisation
+ (optimizeGetWord): fix warning 'i' might be used uninitialized
+ * src/mcs51/gen.c (genCpl): removed W_COMPLEMENT
+ * src/ds390/gen.c (genCpl): removed W_COMPLEMENT
2005-10-24 Bernhard Held <bernhard AT bernhardheld.de>
TETYPE (tree) = TTYPE (tree) = tree->opval.val->type;
return addCast (tree, resultType, TRUE);
}
- if (getSize (tree->left->etype) < INTSIZE)
- werror(W_COMPLEMENT);
- tree->left = addCast (tree->left, resultType, TRUE);
+
+ if (resultType == RESULT_TYPE_BIT &&
+ IS_UNSIGNED (tree->left->etype) &&
+ getSize (tree->left->etype) < INTSIZE)
+ {
+ /* promotion rules are responsible for this strange result:
+ bit -> int -> ~int -> bit
+ uchar -> int -> ~int -> bit
+ */
+ werror(W_COMPLEMENT);
+
+ /* optimize bit-result, even if we optimize a buggy source */
+ tree->type = EX_VALUE;
+ tree->opval.val = constVal ("1");
+ }
+ else
+ tree->left = addCast (tree->left, resultType, TRUE);
LRVAL (tree) = 1;
COPYTYPE (TTYPE (tree), TETYPE (tree), LTYPE (tree));
return tree;
ast *
optimizeGetWord (ast * tree, RESULT_TYPE resultType)
{
- unsigned int i;
+ unsigned int i = 0;
ast * expr;
ast * count = NULL;
bit -> int -> ~int -> bit
uchar -> int -> ~int -> bit
*/
- werror(W_COMPLEMENT);
emitcode ("setb", "%s", IC_RESULT (ic)->aop->aopu.aop_dir);
goto release;
}
bit -> int -> ~int -> bit
uchar -> int -> ~int -> bit
*/
- werror(W_COMPLEMENT);
emitcode ("setb", "%s", IC_RESULT (ic)->aop->aopu.aop_dir);
goto release;
}