diff options
Diffstat (limited to 'clang/lib/CodeGen/CGExprCXX.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGExprCXX.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGExprCXX.cpp b/clang/lib/CodeGen/CGExprCXX.cpp index 8b060ce2..1952282 100644 --- a/clang/lib/CodeGen/CGExprCXX.cpp +++ b/clang/lib/CodeGen/CGExprCXX.cpp @@ -1381,6 +1381,14 @@ llvm::Value *CodeGenFunction::EmitCXXNewExpr(const CXXNewExpr *E) { llvm::Type *elementTy = ConvertTypeForMem(allocType); Address result = Builder.CreateElementBitCast(allocation, elementTy); + // Passing pointer through invariant.group.barrier to avoid propagation of + // vptrs information which may be included in previous type. + if (CGM.getCodeGenOpts().StrictVTablePointers && + CGM.getCodeGenOpts().OptimizationLevel > 0 && + allocator->isReservedGlobalPlacementOperator()) + result = Address(Builder.CreateInvariantGroupBarrier(result.getPointer()), + result.getAlignment()); + EmitNewInitializer(*this, E, allocType, elementTy, result, numElements, allocSizeWithoutCookie); if (E->isArray()) { |