-//===- SimpleStructMutation.cpp - Swap structure elements around -*- C++ -*--=//
+//===- SimpleStructMutation.cpp - Swap structure elements around ----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This pass does a simple transformation that swaps all of the elements of the
// struct types in the program around.
//
//===----------------------------------------------------------------------===//
-
-#include "llvm/Transforms/IPO/SimpleStructMutation.h"
-#include "llvm/Transforms/IPO/MutateStructTypes.h"
+#include "llvm/Transforms/IPO.h"
+#include "llvm/Transforms/MutateStructTypes.h"
#include "llvm/Analysis/FindUsedTypes.h"
#include "llvm/Analysis/FindUnsafePointerTypes.h"
-#include "../TransformInternals.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/DerivedTypes.h"
#include <algorithm>
-#include <iostream>
using std::vector;
using std::set;
using std::pair;
namespace {
- class SimpleStructMutation : public MutateStructTypes {
- public:
- enum Transform { SwapElements, SortElements } CurrentXForm;
-
- SimpleStructMutation(enum Transform XForm) : CurrentXForm(XForm) {}
-
- virtual bool run(Module *M) {
- setTransforms(getTransforms(M, CurrentXForm));
- bool Changed = MutateStructTypes::run(M);
- clearTransforms();
- return Changed;
- }
+ struct SimpleStructMutation : public MutateStructTypes {
+ enum Transform { SwapElements, SortElements };
+ virtual bool run(Module &M) = 0;
+
// getAnalysisUsage - This function needs the results of the
// FindUsedTypes and FindUnsafePointerTypes analysis passes...
//
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.addRequired(FindUsedTypes::ID);
- AU.addRequired(FindUnsafePointerTypes::ID);
+ AU.addRequired<TargetData>();
+ AU.addRequired<FindUsedTypes>();
+ AU.addRequired<FindUnsafePointerTypes>();
MutateStructTypes::getAnalysisUsage(AU);
}
- private:
- TransformsType getTransforms(Module *M, enum Transform);
+ protected:
+ TransformsType getTransforms(Module &M, enum Transform);
+ };
+
+ struct SwapStructElements : public SimpleStructMutation {
+ virtual bool run(Module &M) {
+ setTransforms(getTransforms(M, SwapElements));
+ bool Changed = MutateStructTypes::run(M);
+ clearTransforms();
+ return Changed;
+ }
+ };
+
+ struct SortStructElements : public SimpleStructMutation {
+ virtual bool run(Module &M) {
+ setTransforms(getTransforms(M, SortElements));
+ bool Changed = MutateStructTypes::run(M);
+ clearTransforms();
+ return Changed;
+ }
};
+
+ RegisterOpt<SwapStructElements> X("swapstructs",
+ "Swap structure types around");
+ RegisterOpt<SortStructElements> Y("sortstructs",
+ "Sort structure elements by size");
} // end anonymous namespace
+Pass *createSwapElementsPass() { return new SwapStructElements(); }
+Pass *createSortElementsPass() { return new SortStructElements(); }
// PruneTypes - Given a type Ty, make sure that neither it, or one of its
if (Vec[i].first == Field) return i;
}
-static inline void GetTransformation(const StructType *ST,
+static inline void GetTransformation(const TargetData &TD, const StructType *ST,
vector<int> &Transform,
- enum SimpleStructMutation::Transform XForm) {
+ enum SimpleStructMutation::Transform XForm) {
unsigned NumElements = ST->getElementTypes().size();
Transform.reserve(NumElements);
SimpleStructMutation::TransformsType
- SimpleStructMutation::getTransforms(Module *M, enum Transform XForm) {
+ SimpleStructMutation::getTransforms(Module &, enum Transform XForm) {
// We need to know which types to modify, and which types we CAN'T modify
// TODO: Do symbol tables as well
// Build up a set of structure types that we are going to modify, and
// information describing how to modify them.
std::map<const StructType*, vector<int> > Transforms;
+ TargetData &TD = getAnalysis<TargetData>();
for (set<const StructType*>::iterator I = TypesToModify.begin(),
E = TypesToModify.end(); I != E; ++I) {
const StructType *ST = *I;
vector<int> &Transform = Transforms[ST]; // Fill in the map directly
- GetTransformation(ST, Transform, XForm);
+ GetTransformation(TD, ST, Transform, XForm);
}
return Transforms;
}
-
-
-Pass *createSwapElementsPass() {
- return new SimpleStructMutation(SimpleStructMutation::SwapElements);
-}
-Pass *createSortElementsPass() {
- return new SimpleStructMutation(SimpleStructMutation::SortElements);
-}
-