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Minor cleanups
Make sure to have a pass name llvm-svn: 4268
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//===- StackSlots.cpp - Specialize LLVM code for target machine ---------===//
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//
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// This pass adds 2 empty slots at the top of function stack.
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// These two slots are later used during code reoptimization
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// for spilling the resgiter values when rewriting branches.
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// This pass adds 2 empty slots at the top of function stack. These two slots
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// are later used during code reoptimization for spilling the register values
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// when rewriting branches.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/StackSlots.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/MachineInstrInfo.h"
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#include "llvm/Constants.h"
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#include "llvm/Constant.h"
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#include "llvm/Function.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Pass.h"
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#include "llvm/CodeGen/MachineCodeForMethod.h"
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using std::map;
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using std::cerr;
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class StackSlots : public FunctionPass{
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private:
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const TargetMachine ⌖
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class StackSlots : public FunctionPass {
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const TargetMachine &Target;
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public:
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StackSlots (const TargetMachine &T): target(T) {}
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StackSlots (const TargetMachine &T) : Target(T) {}
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const char *getPassName() const {
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return "Stack Slot Insertion for profiling code";
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}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesCFG();
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}
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bool runOnFunction(Function &F) {
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Value *v = ConstantSInt::get(Type::IntTy,0);
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const Type *PtrInt = PointerType::get(Type::IntTy);
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unsigned Size = Target.DataLayout.getTypeSize(PtrInt);
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MachineCodeForMethod &mcInfo = MachineCodeForMethod::get(&F);
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mcInfo.allocateLocalVar
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(target, v, 2*target.DataLayout.getTypeSize(PointerType::get(Type::IntTy)));
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Value *V = Constant::getNullValue(Type::IntTy);
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mcInfo.allocateLocalVar(Target, V, 2*Size);
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return true;
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}
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};
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Pass* createStackSlotsPass(TargetMachine &T){
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return new StackSlots(T);
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Pass *createStackSlotsPass(const TargetMachine &Target) {
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return new StackSlots(Target);
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}
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