1 //===- TypeMetadataUtils.h - Utilities related to type metadata --*- C++ -*-==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains functions that make it easier to manipulate type metadata
11 // for devirtualization.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_ANALYSIS_TYPEMETADATAUTILS_H
16 #define LLVM_ANALYSIS_TYPEMETADATAUTILS_H
18 #include "llvm/ADT/SmallVector.h"
19 #include "llvm/IR/CallSite.h"
23 /// A call site that could be devirtualized.
24 struct DevirtCallSite {
25 /// The offset from the address point to the virtual function.
27 /// The call site itself.
31 /// Given a call to the intrinsic @llvm.type.test, find all devirtualizable
32 /// call sites based on the call and return them in DevirtCalls.
33 void findDevirtualizableCallsForTypeTest(
34 SmallVectorImpl<DevirtCallSite> &DevirtCalls,
35 SmallVectorImpl<CallInst *> &Assumes, CallInst *CI);
37 /// Given a call to the intrinsic @llvm.type.checked.load, find all
38 /// devirtualizable call sites based on the call and return them in DevirtCalls.
39 void findDevirtualizableCallsForTypeCheckedLoad(
40 SmallVectorImpl<DevirtCallSite> &DevirtCalls,
41 SmallVectorImpl<Instruction *> &LoadedPtrs,
42 SmallVectorImpl<Instruction *> &Preds, bool &HasNonCallUses, CallInst *CI);