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Minor tweak plus a couple of FIXMEs. 

llvm-svn: 54119
This commit is contained in:
Eli Friedman 2008-07-27 05:46:18 +00:00
parent d7a9a46cb5
commit bd84059cdb
1 changed files with 7 additions and 2 deletions
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9
clang/lib/AST/ExprConstant.cpp
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@ -169,7 +169,7 @@ APValue PointerExprEvaluator::VisitCastExpr(const CastExpr* E) {
return APValue();
}
if (SubExpr->getType()->isArithmeticType()) {
if (SubExpr->getType()->isIntegralType()) {
llvm::APSInt Result(32);
if (EvaluateInteger(SubExpr, Result, Info)) {
Result.extOrTrunc((unsigned)Info.Ctx.getTypeSize(E->getType()));
@ -302,7 +302,12 @@ bool IntExprEvaluator::VisitBinaryOperator(const BinaryOperator *E) {
if ((E->getOpcode() == BinaryOperator::LAnd && Result == 0) ||
(E->getOpcode() == BinaryOperator::LOr && Result != 0))
Info.isEvaluated = false;
// FIXME: Handle pointer subtraction
// FIXME Maybe we want to succeed even where we can't evaluate the
// right side of LAnd/LOr?
// For example, see http://llvm.org/bugs/show_bug.cgi?id=2525
if (!EvaluateInteger(E->getRHS(), RHS, Info))
return false;
Info.isEvaluated = OldEval;