From c91249485527f69cf0d7e7b6dda9d8e6eb46d4b0 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 21 Sep 2012 23:00:37 +0000 Subject: Add an MDBuilder utility for creating !tbaa.struct nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164425 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/MDBuilder.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/llvm/MDBuilder.h b/include/llvm/MDBuilder.h index 2aa48b0..1867a63 100644 --- a/include/llvm/MDBuilder.h +++ b/include/llvm/MDBuilder.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 Fields) { + SmallVector 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 -- cgit v1.1