diff options
Diffstat (limited to 'lib/CodeGen/CGExprCXX.cpp')
| -rw-r--r-- | lib/CodeGen/CGExprCXX.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/CGExprCXX.cpp b/lib/CodeGen/CGExprCXX.cpp index 94f9505342..2f3e4680a7 100644 --- a/lib/CodeGen/CGExprCXX.cpp +++ b/lib/CodeGen/CGExprCXX.cpp @@ -370,8 +370,9 @@ CodeGenFunction::EmitCXXConstructExpr(const CXXConstructExpr *E, // If we require zero initialization before (or instead of) calling the // constructor, as can be the case with a non-user-provided default - // constructor, emit the zero initialization now. - if (E->requiresZeroInitialization()) + // constructor, emit the zero initialization now, unless destination is + // already zeroed. + if (E->requiresZeroInitialization() && !Dest.isZeroed()) EmitNullInitialization(Dest.getAddr(), E->getType()); // If this is a call to a trivial default constructor, do nothing. |