diff options
Diffstat (limited to 'include/llvm/IR/MDBuilder.h')
-rw-r--r-- | include/llvm/IR/MDBuilder.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/llvm/IR/MDBuilder.h b/include/llvm/IR/MDBuilder.h index 604051b..a1e3fb1 100644 --- a/include/llvm/IR/MDBuilder.h +++ b/include/llvm/IR/MDBuilder.h @@ -156,6 +156,29 @@ public: return MDNode::get(Context, Vals); } + /// \brief Return metadata for a TBAA struct node in the type DAG + /// with the given name, parents in the TBAA DAG. + MDNode *createTBAAStructTypeNode(StringRef Name, + ArrayRef<std::pair<uint64_t, MDNode*> > Fields) { + SmallVector<Value *, 4> Ops(Fields.size() * 2 + 1); + Type *Int64 = IntegerType::get(Context, 64); + Ops[0] = createString(Name); + for (unsigned i = 0, e = Fields.size(); i != e; ++i) { + Ops[i * 2 + 1] = ConstantInt::get(Int64, Fields[i].first); + Ops[i * 2 + 2] = Fields[i].second; + } + return MDNode::get(Context, Ops); + } + + /// \brief Return metadata for a TBAA tag node with the given + /// base type, access type and offset relative to the base type. + MDNode *createTBAAStructTagNode(MDNode *BaseType, MDNode *AccessType, + uint64_t Offset) { + Type *Int64 = IntegerType::get(Context, 64); + Value *Ops[3] = { BaseType, AccessType, ConstantInt::get(Int64, Offset) }; + return MDNode::get(Context, Ops); + } + }; } // end namespace llvm |