Decorating vptr load & stores with !invariant.group
Adding !invariant.group to vptr load/stores for devirtualization purposes.
For more goto:
http://lists.llvm.org/pipermail/cfe-dev/2015-July/044227.html
http://reviews.llvm.org/D12026
llvm-svn: 247725
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 754e3d1..e7ae20f 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -658,9 +658,13 @@
/// is the same as the type. For struct-path aware TBAA, the tag
/// is different from the type: base type, access type and offset.
/// When ConvertTypeToTag is true, we create a tag based on the scalar type.
- void DecorateInstruction(llvm::Instruction *Inst,
- llvm::MDNode *TBAAInfo,
- bool ConvertTypeToTag = true);
+ void DecorateInstructionWithTBAA(llvm::Instruction *Inst,
+ llvm::MDNode *TBAAInfo,
+ bool ConvertTypeToTag = true);
+
+ /// Adds !invariant.barrier !tag to instruction
+ void DecorateInstructionWithInvariantGroup(llvm::Instruction *I,
+ const CXXRecordDecl *RD);
/// Emit the given number of characters as a value of type size_t.
llvm::ConstantInt *getSize(CharUnits numChars);