#ifndef LLVM_TRANSFORMS_UTILS_CLONING_H
#define LLVM_TRANSFORMS_UTILS_CLONING_H
-#include "llvm/ADT/ValueMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Twine.h"
-#include "llvm/Support/ValueHandle.h"
+#include "llvm/IR/ValueHandle.h"
+#include "llvm/IR/ValueMap.h"
#include "llvm/Transforms/Utils/ValueMapper.h"
namespace llvm {
class CallSite;
class Trace;
class CallGraph;
-class TargetData;
+class DataLayout;
class Loop;
class LoopInfo;
class AllocaInst;
+class AliasAnalysis;
+class AssumptionCacheTracker;
/// CloneModule - Return an exact copy of the specified module
///
/// ContainsCalls - This is set to true if the cloned code contains a normal
/// call instruction.
bool ContainsCalls;
-
+
/// ContainsDynamicAllocas - This is set to true if the cloned code contains
/// a 'dynamic' alloca. Dynamic allocas are allocas that are either not in
/// the entry block or they are in the entry block but are not a constant
/// size.
bool ContainsDynamicAllocas;
-
+
ClonedCodeInfo() : ContainsCalls(false), ContainsDynamicAllocas(false) {}
};
-
/// CloneBasicBlock - Return a copy of the specified basic block, but without
/// embedding the block into a particular function. The block returned is an
/// exact copy of the specified basic block, without any remapping having been
///
BasicBlock *CloneBasicBlock(const BasicBlock *BB,
ValueToValueMapTy &VMap,
- const Twine &NameSuffix = "", Function *F = 0,
- ClonedCodeInfo *CodeInfo = 0);
+ const Twine &NameSuffix = "", Function *F = nullptr,
+ ClonedCodeInfo *CodeInfo = nullptr);
/// CloneFunction - Return a copy of the specified function, but without
/// embedding the function into another module. Also, any references specified
/// information about the cloned code if non-null.
///
/// If ModuleLevelChanges is false, VMap contains no non-identity GlobalValue
-/// mappings.
+/// mappings, and debug info metadata will not be cloned.
///
Function *CloneFunction(const Function *F,
ValueToValueMapTy &VMap,
bool ModuleLevelChanges,
- ClonedCodeInfo *CodeInfo = 0);
-
-/// CloneFunction - Version of the function that doesn't need the VMap.
-///
-inline Function *CloneFunction(const Function *F, ClonedCodeInfo *CodeInfo = 0){
- ValueToValueMapTy VMap;
- return CloneFunction(F, VMap, CodeInfo);
-}
+ ClonedCodeInfo *CodeInfo = nullptr);
/// Clone OldFunc into NewFunc, transforming the old arguments into references
/// to VMap values. Note that if NewFunc already has basic blocks, the ones
ValueToValueMapTy &VMap,
bool ModuleLevelChanges,
SmallVectorImpl<ReturnInst*> &Returns,
- const char *NameSuffix = "",
- ClonedCodeInfo *CodeInfo = 0,
- ValueMapTypeRemapper *TypeMapper = 0);
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = nullptr,
+ ValueMapTypeRemapper *TypeMapper = nullptr,
+ ValueMaterializer *Materializer = nullptr);
+
+/// A helper class used with CloneAndPruneIntoFromInst to change the default
+/// behavior while instructions are being cloned.
+class CloningDirector {
+public:
+ /// This enumeration describes the way CloneAndPruneIntoFromInst should
+ /// proceed after the CloningDirector has examined an instruction.
+ enum CloningAction {
+ ///< Continue cloning the instruction (default behavior).
+ CloneInstruction,
+ ///< Skip this instruction but continue cloning the current basic block.
+ SkipInstruction,
+ ///< Skip this instruction and stop cloning the current basic block.
+ StopCloningBB
+ };
+
+ CloningDirector() {}
+ virtual ~CloningDirector() {}
+
+ /// Subclasses must override this function to customize cloning behavior.
+ virtual CloningAction handleInstruction(ValueToValueMapTy &VMap,
+ const Instruction *Inst,
+ BasicBlock *NewBB) = 0;
+};
+
+void CloneAndPruneIntoFromInst(Function *NewFunc, const Function *OldFunc,
+ const Instruction *StartingInst,
+ ValueToValueMapTy &VMap,
+ bool ModuleLevelChanges,
+ SmallVectorImpl<ReturnInst*> &Returns,
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = nullptr,
+ const DataLayout *DL = nullptr,
+ CloningDirector *Director = nullptr);
+
/// CloneAndPruneFunctionInto - This works exactly like CloneFunctionInto,
/// except that it does some simple constant prop and DCE on the fly. The
ValueToValueMapTy &VMap,
bool ModuleLevelChanges,
SmallVectorImpl<ReturnInst*> &Returns,
- const char *NameSuffix = "",
- ClonedCodeInfo *CodeInfo = 0,
- const TargetData *TD = 0,
- Instruction *TheCall = 0);
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = nullptr,
+ const DataLayout *DL = nullptr,
+ Instruction *TheCall = nullptr);
-
/// InlineFunctionInfo - This class captures the data input to the
-/// InlineFunction call, and records the auxiliary results produced by it.
+/// InlineFunction call, and records the auxiliary results produced by it.
class InlineFunctionInfo {
public:
- explicit InlineFunctionInfo(CallGraph *cg = 0, const TargetData *td = 0)
- : CG(cg), TD(td) {}
-
+ explicit InlineFunctionInfo(CallGraph *cg = nullptr,
+ const DataLayout *DL = nullptr,
+ AliasAnalysis *AA = nullptr,
+ AssumptionCacheTracker *ACT = nullptr)
+ : CG(cg), DL(DL), AA(AA), ACT(ACT) {}
+
/// CG - If non-null, InlineFunction will update the callgraph to reflect the
/// changes it makes.
CallGraph *CG;
- const TargetData *TD;
+ const DataLayout *DL;
+ AliasAnalysis *AA;
+ AssumptionCacheTracker *ACT;
/// StaticAllocas - InlineFunction fills this in with all static allocas that
/// get copied into the caller.
/// InlinedCalls - InlineFunction fills this in with callsites that were
/// inlined from the callee. This is only filled in if CG is non-null.
SmallVector<WeakVH, 8> InlinedCalls;
-
+
void reset() {
StaticAllocas.clear();
InlinedCalls.clear();
}
};
-
+
/// InlineFunction - This function inlines the called function into the basic
/// block of the caller. This returns false if it is not possible to inline
/// this call. The program is still in a well defined state if this occurs
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