diff options
| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-02-13 21:18:23 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-02-13 21:18:23 +0000 |
| commit | c764830bdb6de82baed068889096bd3e52d4cbda (patch) | |
| tree | 73a7173f5bd2dcbb43b3950276f7e8f429a39a17 /lib/CodeGen/CGClass.cpp | |
| parent | a03ab10f0e4d888139b3b694dd55d176982f72a4 (diff) | |
ubsan: Add checking for invalid downcasts. Per [expr.static.cast]p2 and p11,
base-to-derived casts have undefined behavior if the object is not actually an
instance of the derived type.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175078 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGClass.cpp')
| -rw-r--r-- | lib/CodeGen/CGClass.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/CGClass.cpp b/lib/CodeGen/CGClass.cpp index 4e4acc8f12..d8474691bd 100644 --- a/lib/CodeGen/CGClass.cpp +++ b/lib/CodeGen/CGClass.cpp @@ -232,7 +232,7 @@ CodeGenFunction::GetAddressOfDerivedClass(llvm::Value *Value, QualType DerivedTy = getContext().getCanonicalType(getContext().getTagDeclType(Derived)); llvm::Type *DerivedPtrTy = ConvertType(DerivedTy)->getPointerTo(); - + llvm::Value *NonVirtualOffset = CGM.GetNonVirtualBaseClassOffset(Derived, PathBegin, PathEnd); |