X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMDBuilder.h;h=1867a639236e39bed5a24d0f66bb174dad4a52be;hb=79b319d35589ffe9c00a5e112a79ad20ea78c4d5;hp=add6f2e2f96d7c6afff7da2723958b75607adff5;hpb=0baa4809a8de135a6a7abe9cd78a86f208c99164;p=oota-llvm.git

diff --git a/include/llvm/MDBuilder.h b/include/llvm/MDBuilder.h
index add6f2e2f96..1867a639236 100644
--- a/include/llvm/MDBuilder.h
+++ b/include/llvm/MDBuilder.h
@@ -12,8 +12,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_SUPPORT_MDBUILDER_H
-#define LLVM_SUPPORT_MDBUILDER_H
+#ifndef LLVM_MDBUILDER_H
+#define LLVM_MDBUILDER_H
 
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
@@ -134,6 +134,27 @@ namespace llvm {
       }
     }
 
+    struct TBAAStructField {
+      uint64_t Offset;
+      uint64_t Size;
+      MDNode *TBAA;
+      TBAAStructField(uint64_t Offset, uint64_t Size, MDNode *TBAA) :
+        Offset(Offset), Size(Size), TBAA(TBAA) {}
+    };
+
+    /// \brief Return metadata for a tbaa.struct node with the given
+    /// struct field descriptions.
+    MDNode *createTBAAStructNode(ArrayRef<TBAAStructField> Fields) {
+      SmallVector<Value *, 4> Vals(Fields.size() * 3);
+      Type *Int64 = IntegerType::get(Context, 64);
+      for (unsigned i = 0, e = Fields.size(); i != e; ++i) {
+        Vals[i * 3 + 0] = ConstantInt::get(Int64, Fields[i].Offset);
+        Vals[i * 3 + 1] = ConstantInt::get(Int64, Fields[i].Size);
+        Vals[i * 3 + 2] = Fields[i].TBAA;
+      }
+      return MDNode::get(Context, Vals);
+    }
+
   };
 
 } // end namespace llvm