From ea266cad53e3d49771fa38103913d3ec7a166694 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Mon, 10 Jun 2013 20:45:12 +0000
Subject: Vendor import of clang tags/RELEASE_33/final r183502 (effectively,
3.3 release):
http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_33/final@183502
---
lib/CodeGen/CodeGenTBAA.h | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
(limited to 'lib/CodeGen/CodeGenTBAA.h')
diff --git a/lib/CodeGen/CodeGenTBAA.h b/lib/CodeGen/CodeGenTBAA.h
index 9ddc3aa..f0c9e06 100644
--- a/lib/CodeGen/CodeGenTBAA.h
+++ b/lib/CodeGen/CodeGenTBAA.h
@@ -61,6 +61,8 @@ class CodeGenTBAA {
llvm::DenseMap<const Type *, llvm::MDNode *> StructTypeMetadataCache;
/// This maps TBAAPathTags to a tag node.
llvm::DenseMap<TBAAPathTag, llvm::MDNode *> StructTagMetadataCache;
+ /// This maps a scalar type to a scalar tag node.
+ llvm::DenseMap<const llvm::MDNode *, llvm::MDNode *> ScalarTagMetadataCache;
/// StructMetadataCache - This maps clang::Types to llvm::MDNodes describing
/// them for struct assignments.
@@ -84,6 +86,11 @@ class CodeGenTBAA {
SmallVectorImpl<llvm::MDBuilder::TBAAStructField> &Fields,
bool MayAlias);
+ /// A wrapper function to create a scalar type. For struct-path aware TBAA,
+ /// the scalar type has the same format as the struct type: name, offset,
+ /// pointer to another node in the type DAG.
+ llvm::MDNode *createTBAAScalarType(StringRef Name, llvm::MDNode *Parent);
+
public:
CodeGenTBAA(ASTContext &Ctx, llvm::LLVMContext &VMContext,
const CodeGenOptions &CGO,
@@ -105,10 +112,13 @@ public:
/// Get the MDNode in the type DAG for given struct type QType.
llvm::MDNode *getTBAAStructTypeInfo(QualType QType);
- /// Get the tag MDNode for a given base type, the actual sclar access MDNode
+ /// Get the tag MDNode for a given base type, the actual scalar access MDNode
/// and offset into the base type.
llvm::MDNode *getTBAAStructTagInfo(QualType BaseQType,
llvm::MDNode *AccessNode, uint64_t Offset);
+
+ /// Get the sclar tag MDNode for a given scalar type.
+ llvm::MDNode *getTBAAScalarTagInfo(llvm::MDNode *AccessNode);
};
} // end namespace CodeGen
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