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-rw-r--r--lib/AST/Expr.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index efd0fd1..1b3202d 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -788,6 +788,8 @@ bool Expr::isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1,
switch (getStmtClass()) {
default:
+ if (getType()->isVoidType())
+ return false;
Loc = getExprLoc();
R1 = getSourceRange();
return true;
@@ -834,8 +836,8 @@ bool Expr::isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1,
if (IE->getValue() == 0)
return false;
- return (BO->getRHS()->isUnusedResultAWarning(Loc, R1, R2, Ctx) ||
- BO->getLHS()->isUnusedResultAWarning(Loc, R1, R2, Ctx));
+ return (BO->getLHS()->isUnusedResultAWarning(Loc, R1, R2, Ctx) ||
+ BO->getRHS()->isUnusedResultAWarning(Loc, R1, R2, Ctx));
}
if (BO->isAssignmentOp())
@@ -936,6 +938,8 @@ bool Expr::isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1,
if (const Expr *E = dyn_cast<Expr>(CS->body_back()))
return E->isUnusedResultAWarning(Loc, R1, R2, Ctx);
+ if (getType()->isVoidType())
+ return false;
Loc = cast<StmtExpr>(this)->getLParenLoc();
R1 = getSourceRange();
return true;
@@ -949,6 +953,8 @@ bool Expr::isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1,
R1 = cast<CStyleCastExpr>(this)->getSubExpr()->getSourceRange();
return true;
case CXXFunctionalCastExprClass: {
+ if (getType()->isVoidType())
+ return false;
const CastExpr *CE = cast<CastExpr>(this);
// If this is a cast to void or a constructor conversion, check the operand.
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