diff options
author | Ivan A. Kosarev <ikosarev@accesssoftek.com> | 2017-12-18 16:49:39 +0000 |
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committer | Ivan A. Kosarev <ikosarev@accesssoftek.com> | 2017-12-18 16:49:39 +0000 |
commit | d6be2143517ce73716e991b7d4ebe1ec431900d9 (patch) | |
tree | d50213fc278325ce41030de23eba071c9f3413d8 /lib/IR | |
parent | f829832e3e2c0c08fa3954b42bc992e727040dc1 (diff) |
[IR] Add MDBuilder helpers for the new TBAA metadata format
The new helpers are supposed to be used in clang to generate TBAA
information in the new format proposed in this thread:
http://lists.llvm.org/pipermail/llvm-dev/2017-November/118748.html
Differential Revision: https://reviews.llvm.org/D39956
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320993 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/IR')
-rw-r--r-- | lib/IR/MDBuilder.cpp | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/lib/IR/MDBuilder.cpp b/lib/IR/MDBuilder.cpp index d8e64db7c5d..6d77a8f2d60 100644 --- a/lib/IR/MDBuilder.cpp +++ b/lib/IR/MDBuilder.cpp @@ -157,7 +157,7 @@ MDNode *MDBuilder::createTBAAStructNode(ArrayRef<TBAAStructField> Fields) { for (unsigned i = 0, e = Fields.size(); i != e; ++i) { Vals[i * 3 + 0] = createConstant(ConstantInt::get(Int64, Fields[i].Offset)); Vals[i * 3 + 1] = createConstant(ConstantInt::get(Int64, Fields[i].Size)); - Vals[i * 3 + 2] = Fields[i].TBAA; + Vals[i * 3 + 2] = Fields[i].Type; } return MDNode::get(Context, Vals); } @@ -198,6 +198,36 @@ MDNode *MDBuilder::createTBAAStructTagNode(MDNode *BaseType, MDNode *AccessType, return MDNode::get(Context, {BaseType, AccessType, createConstant(Off)}); } +MDNode *MDBuilder::createTBAATypeNode(MDNode *Parent, uint64_t Size, + Metadata *Id, + ArrayRef<TBAAStructField> Fields) { + SmallVector<Metadata *, 4> Ops(3 + Fields.size() * 3); + Type *Int64 = Type::getInt64Ty(Context); + Ops[0] = Parent; + Ops[1] = createConstant(ConstantInt::get(Int64, Size)); + Ops[2] = Id; + for (unsigned I = 0, E = Fields.size(); I != E; ++I) { + Ops[I * 3 + 3] = Fields[I].Type; + Ops[I * 3 + 4] = createConstant(ConstantInt::get(Int64, Fields[I].Offset)); + Ops[I * 3 + 5] = createConstant(ConstantInt::get(Int64, Fields[I].Size)); + } + return MDNode::get(Context, Ops); +} + +MDNode *MDBuilder::createTBAAAccessTag(MDNode *BaseType, MDNode *AccessType, + uint64_t Offset, uint64_t Size, + bool IsImmutable) { + IntegerType *Int64 = Type::getInt64Ty(Context); + auto *OffsetNode = createConstant(ConstantInt::get(Int64, Offset)); + auto *SizeNode = createConstant(ConstantInt::get(Int64, Size)); + if (IsImmutable) { + auto *ImmutabilityFlagNode = createConstant(ConstantInt::get(Int64, 1)); + return MDNode::get(Context, {BaseType, AccessType, OffsetNode, SizeNode, + ImmutabilityFlagNode}); + } + return MDNode::get(Context, {BaseType, AccessType, OffsetNode, SizeNode}); +} + MDNode *MDBuilder::createIrrLoopHeaderWeight(uint64_t Weight) { SmallVector<Metadata *, 2> Vals(2); Vals[0] = createString("loop_header_weight"); |