unsigned multipleAlternativeCount = Str.count('|') + 1;
unsigned multipleAlternativeIndex = 0;
ConstraintCodeVector *pCodes = &Codes;
-
+
// Initialize
- isMultipleAlternative = (multipleAlternativeCount > 1 ? true : false);
+ isMultipleAlternative = multipleAlternativeCount > 1;
if (isMultipleAlternative) {
multipleAlternatives.resize(multipleAlternativeCount);
pCodes = &multipleAlternatives[0].Codes;
if (*I == '~') {
Type = isClobber;
++I;
+
+ // '{' must immediately follow '~'.
+ if (I != E && *I != '{')
+ return true;
} else if (*I == '=') {
++I;
Type = isOutput;
}
-
+
if (*I == '*') {
isIndirect = true;
++I;
}
-
+
if (I == E) return true; // Just a prefix, like "==" or "~".
// Parse the modifiers.
// Note that operand #n has a matching input.
scInfo.MatchingInput = ConstraintsSoFar.size();
} else {
- if (ConstraintsSoFar[N].hasMatchingInput())
+ if (ConstraintsSoFar[N].hasMatchingInput() &&
+ (size_t)ConstraintsSoFar[N].MatchingInput !=
+ ConstraintsSoFar.size())
return true;
// Note that operand #n has a matching input.
ConstraintsSoFar[N].MatchingInput = ConstraintsSoFar.size();
I = ConstraintEnd;
if (I != E) {
++I;
- if (I == E) { Result.clear(); break; } // don't allow "xyz,"
+ if (I == E) {
+ Result.clear();
+ break;
+ } // don't allow "xyz,"
}
}
break;
default:
StructType *STy = dyn_cast<StructType>(Ty->getReturnType());
- if (STy == 0 || STy->getNumElements() != NumOutputs)
+ if (!STy || STy->getNumElements() != NumOutputs)
return false;
break;
}