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-rw-r--r--lib/Sema/SemaExpr.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 82771298e0..8448ed8079 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -9231,7 +9231,9 @@ void Sema::DiagnoseEqualityWithExtraParens(ParenExpr *parenE) {
Expr *E = parenE->IgnoreParens();
if (BinaryOperator *opE = dyn_cast<BinaryOperator>(E))
- if (opE->getOpcode() == BO_EQ) {
+ if (opE->getOpcode() == BO_EQ &&
+ opE->getLHS()->IgnoreParenImpCasts()->isModifiableLvalue(Context)
+ == Expr::MLV_Valid) {
SourceLocation Loc = opE->getOperatorLoc();
Diag(Loc, diag::warn_equality_with_extra_parens) << E->getSourceRange();