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mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 19:23:23 +01:00

Minor cleanups

Make sure to have a pass name

llvm-svn: 4268
This commit is contained in:
Chris Lattner 2002-10-23 01:12:01 +00:00
parent e68a9a15dd
commit b43b03614e

View File

@ -1,41 +1,44 @@
//===- StackSlots.cpp - Specialize LLVM code for target machine ---------===//
//
// This pass adds 2 empty slots at the top of function stack.
// These two slots are later used during code reoptimization
// for spilling the resgiter values when rewriting branches.
// This pass adds 2 empty slots at the top of function stack. These two slots
// are later used during code reoptimization for spilling the register values
// when rewriting branches.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/StackSlots.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/MachineInstrInfo.h"
#include "llvm/Constants.h"
#include "llvm/Constant.h"
#include "llvm/Function.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Pass.h"
#include "llvm/CodeGen/MachineCodeForMethod.h"
using std::map;
using std::cerr;
class StackSlots : public FunctionPass{
private:
const TargetMachine ⌖
class StackSlots : public FunctionPass {
const TargetMachine &Target;
public:
StackSlots (const TargetMachine &T): target(T) {}
StackSlots (const TargetMachine &T) : Target(T) {}
const char *getPassName() const {
return "Stack Slot Insertion for profiling code";
}
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesCFG();
}
bool runOnFunction(Function &F) {
Value *v = ConstantSInt::get(Type::IntTy,0);
const Type *PtrInt = PointerType::get(Type::IntTy);
unsigned Size = Target.DataLayout.getTypeSize(PtrInt);
MachineCodeForMethod &mcInfo = MachineCodeForMethod::get(&F);
mcInfo.allocateLocalVar
(target, v, 2*target.DataLayout.getTypeSize(PointerType::get(Type::IntTy)));
Value *V = Constant::getNullValue(Type::IntTy);
mcInfo.allocateLocalVar(Target, V, 2*Size);
return true;
}
};
Pass* createStackSlotsPass(TargetMachine &T){
return new StackSlots(T);
Pass *createStackSlotsPass(const TargetMachine &Target) {
return new StackSlots(Target);
}