From 4133eabb45b6b78cebd17e43564071c8b93f8206 Mon Sep 17 00:00:00 2001 From: Kostya Serebryany Date: Tue, 11 Nov 2014 23:38:13 +0000 Subject: [clang/asan] Do not emit memcpy for trivial operator= when -fsanitize-address-field-padding >= 1 Summary: If we've added poisoned paddings to a type do not emit memcpy for operator=. Test Plan: regression tests. Reviewers: majnemer, rsmith Reviewed By: rsmith Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D6160 llvm-svn: 221739 --- clang/lib/CodeGen/CGExprCXX.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'clang/lib/CodeGen') diff --git a/clang/lib/CodeGen/CGExprCXX.cpp b/clang/lib/CodeGen/CGExprCXX.cpp index 3d1283f04b9..39c77eb8b6d 100644 --- a/clang/lib/CodeGen/CGExprCXX.cpp +++ b/clang/lib/CodeGen/CGExprCXX.cpp @@ -318,7 +318,7 @@ CodeGenFunction::EmitCXXOperatorMemberCallExpr(const CXXOperatorCallExpr *E, llvm::Value *This = LV.getAddress(); if ((MD->isCopyAssignmentOperator() || MD->isMoveAssignmentOperator()) && - MD->isTrivial()) { + MD->isTrivial() && !MD->getParent()->mayInsertExtraPadding()) { llvm::Value *Src = EmitLValue(E->getArg(1)).getAddress(); QualType Ty = E->getType(); EmitAggregateAssign(This, Src, Ty); -- cgit v1.2.3