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https://github.com/c64scene-ar/llvm-6502.git
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* A bunch of functionality and data was removed from MachineFunction and put
into a new MachineFunctionInfo class * Implement new FunctionFrameInfo class git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5193 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
e90fcb739a
commit
955fad1f99
@ -10,6 +10,8 @@
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#include "llvm/CodeGen/MachineInstr.h"
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#include "llvm/CodeGen/MachineCodeForInstruction.h"
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#include "llvm/CodeGen/SSARegMap.h"
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#include "llvm/CodeGen/MachineFunctionInfo.h"
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#include "llvm/CodeGen/FunctionFrameInfo.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/MachineFrameInfo.h"
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#include "llvm/Target/MachineCacheInfo.h"
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@ -39,7 +41,7 @@ namespace {
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}
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bool runOnFunction(Function &F) {
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MachineFunction::construct(&F, Target).CalculateArgSize();
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MachineFunction::construct(&F, Target).getInfo()->CalculateArgSize();
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return false;
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}
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};
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@ -95,25 +97,27 @@ Pass *createMachineFunctionPrinterPass() {
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//===---------------------------------------------------------------------===//
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MachineFunction::MachineFunction(const Function *F,
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const TargetMachine& target)
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: Annotation(MF_AID), Fn(F), Target(target) {
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const TargetMachine &TM)
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: Annotation(MF_AID), Fn(F), Target(TM) {
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SSARegMapping = new SSARegMap();
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// FIXME: move state into another class
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staticStackSize = automaticVarsSize = regSpillsSize = 0;
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maxOptionalArgsSize = maxOptionalNumArgs = currentTmpValuesSize = 0;
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maxTmpValuesSize = 0;
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compiledAsLeaf = spillsAreaFrozen = automaticVarsAreaFrozen = false;
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MFInfo = new MachineFunctionInfo(*this);
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FrameInfo = new FunctionFrameInfo();
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}
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MachineFunction::~MachineFunction() {
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delete SSARegMapping;
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delete MFInfo;
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delete FrameInfo;
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}
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void MachineFunction::dump() const { print(std::cerr); }
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void MachineFunction::print(std::ostream &OS) const {
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OS << "\n" << *(Value*)Fn->getReturnType() << " \"" << Fn->getName()<< "\"\n";
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OS << "\n" << *(Value*)Fn->getFunctionType() << " \"" << Fn->getName()
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<< "\"\n";
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// Print Frame Information
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getFrameInfo()->print(OS);
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for (const_iterator BB = begin(); BB != end(); ++BB) {
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BasicBlock *LBB = BB->getBasicBlock();
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@ -163,12 +167,48 @@ void MachineFunction::clearSSARegMap() {
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SSARegMapping = 0;
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}
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//===----------------------------------------------------------------------===//
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// FunctionFrameInfo implementation
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//===----------------------------------------------------------------------===//
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void FunctionFrameInfo::print(std::ostream &OS) const {
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for (unsigned i = 0, e = Objects.size(); i != e; ++i) {
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const StackObject &SO = Objects[i];
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OS << " <fi# " << (int)(i-NumFixedObjects) << "> is ";
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if (SO.Size == 0)
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OS << "variable sized";
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else
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OS << SO.Size << " byte" << (SO.Size != 1 ? "s" : " ");
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if (i < NumFixedObjects)
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OS << " fixed";
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if (i < NumFixedObjects || SO.SPOffset != -1) {
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OS << " at location [SP";
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if (SO.SPOffset > 0)
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OS << "+" << SO.SPOffset;
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else if (SO.SPOffset < 0)
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OS << SO.SPOffset;
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OS << "]";
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}
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OS << "\n";
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}
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if (HasVarSizedObjects)
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OS << " Stack frame contains variable sized objects\n";
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}
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void FunctionFrameInfo::dump() const { print(std::cerr); }
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//===----------------------------------------------------------------------===//
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// MachineFunctionInfo implementation
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//===----------------------------------------------------------------------===//
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static unsigned
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ComputeMaxOptionalArgsSize(const TargetMachine& target, const Function *F,
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unsigned &maxOptionalNumArgs)
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{
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const MachineFrameInfo& frameInfo = target.getFrameInfo();
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const TargetFrameInfo &frameInfo = target.getFrameInfo();
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unsigned maxSize = 0;
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@ -181,7 +221,7 @@ ComputeMaxOptionalArgsSize(const TargetMachine& target, const Function *F,
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if (numExtra <= 0)
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continue;
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unsigned int sizeForThisCall;
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unsigned sizeForThisCall;
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if (frameInfo.argsOnStackHaveFixedSize())
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{
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int argSize = frameInfo.getSizeOfEachArgOnStack();
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@ -194,7 +234,7 @@ ComputeMaxOptionalArgsSize(const TargetMachine& target, const Function *F,
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"compute MaxOptionalArgsSize");
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sizeForThisCall = 0;
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for (unsigned i = 0; i < numOperands; ++i)
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sizeForThisCall += target.DataLayout.getTypeSize(callInst->
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sizeForThisCall += target.getTargetData().getTypeSize(callInst->
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getOperand(i)->getType());
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}
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@ -217,52 +257,51 @@ ComputeMaxOptionalArgsSize(const TargetMachine& target, const Function *F,
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// but they are unrelated. This one does not align at more than a
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// double-word boundary whereas that one might.
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//
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inline unsigned int
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SizeToAlignment(unsigned int size, const TargetMachine& target)
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inline unsigned
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SizeToAlignment(unsigned size, const TargetMachine& target)
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{
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unsigned short cacheLineSize = target.getCacheInfo().getCacheLineSize(1);
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if (size > (unsigned) cacheLineSize / 2)
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return cacheLineSize;
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else
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for (unsigned sz=1; /*no condition*/; sz *= 2)
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if (sz >= size || sz >= target.DataLayout.getDoubleAlignment())
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if (sz >= size || sz >= target.getTargetData().getDoubleAlignment())
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return sz;
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}
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void MachineFunction::CalculateArgSize() {
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maxOptionalArgsSize = ComputeMaxOptionalArgsSize(Target, Fn,
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void MachineFunctionInfo::CalculateArgSize() {
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maxOptionalArgsSize = ComputeMaxOptionalArgsSize(MF.getTarget(),
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MF.getFunction(),
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maxOptionalNumArgs);
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staticStackSize = maxOptionalArgsSize
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+ Target.getFrameInfo().getMinStackFrameSize();
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+ MF.getTarget().getFrameInfo().getMinStackFrameSize();
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}
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int
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MachineFunction::computeOffsetforLocalVar(const TargetMachine& target,
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const Value* val,
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unsigned int& getPaddedSize,
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unsigned int sizeToUse)
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MachineFunctionInfo::computeOffsetforLocalVar(const Value* val,
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unsigned &getPaddedSize,
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unsigned sizeToUse)
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{
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if (sizeToUse == 0)
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sizeToUse = target.findOptimalStorageSize(val->getType());
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unsigned int align = SizeToAlignment(sizeToUse, target);
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sizeToUse = MF.getTarget().findOptimalStorageSize(val->getType());
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unsigned align = SizeToAlignment(sizeToUse, MF.getTarget());
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bool growUp;
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int firstOffset = target.getFrameInfo().getFirstAutomaticVarOffset(*this,
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growUp);
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int firstOffset = MF.getTarget().getFrameInfo().getFirstAutomaticVarOffset(MF,
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growUp);
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int offset = growUp? firstOffset + getAutomaticVarsSize()
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: firstOffset - (getAutomaticVarsSize() + sizeToUse);
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int aligned = target.getFrameInfo().adjustAlignment(offset, growUp, align);
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int aligned = MF.getTarget().getFrameInfo().adjustAlignment(offset, growUp, align);
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getPaddedSize = sizeToUse + abs(aligned - offset);
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return aligned;
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}
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int
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MachineFunction::allocateLocalVar(const TargetMachine& target,
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const Value* val,
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unsigned int sizeToUse)
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MachineFunctionInfo::allocateLocalVar(const Value* val,
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unsigned sizeToUse)
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{
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assert(! automaticVarsAreaFrozen &&
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"Size of auto vars area has been used to compute an offset so "
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@ -273,8 +312,8 @@ MachineFunction::allocateLocalVar(const TargetMachine& target,
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int offset = getOffset(val);
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if (offset == INVALID_FRAME_OFFSET)
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{
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unsigned int getPaddedSize;
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offset = computeOffsetforLocalVar(target, val, getPaddedSize, sizeToUse);
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unsigned getPaddedSize;
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offset = computeOffsetforLocalVar(val, getPaddedSize, sizeToUse);
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offsets[val] = offset;
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incrementAutomaticVarsSize(getPaddedSize);
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}
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@ -282,23 +321,22 @@ MachineFunction::allocateLocalVar(const TargetMachine& target,
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}
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int
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MachineFunction::allocateSpilledValue(const TargetMachine& target,
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const Type* type)
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MachineFunctionInfo::allocateSpilledValue(const Type* type)
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{
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assert(! spillsAreaFrozen &&
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"Size of reg spills area has been used to compute an offset so "
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"no more register spill slots should be allocated!");
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unsigned int size = target.DataLayout.getTypeSize(type);
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unsigned char align = target.DataLayout.getTypeAlignment(type);
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unsigned size = MF.getTarget().getTargetData().getTypeSize(type);
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unsigned char align = MF.getTarget().getTargetData().getTypeAlignment(type);
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bool growUp;
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int firstOffset = target.getFrameInfo().getRegSpillAreaOffset(*this, growUp);
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int firstOffset = MF.getTarget().getFrameInfo().getRegSpillAreaOffset(MF, growUp);
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int offset = growUp? firstOffset + getRegSpillsSize()
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: firstOffset - (getRegSpillsSize() + size);
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int aligned = target.getFrameInfo().adjustAlignment(offset, growUp, align);
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int aligned = MF.getTarget().getFrameInfo().adjustAlignment(offset, growUp, align);
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size += abs(aligned - offset); // include alignment padding in size
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incrementRegSpillsSize(size); // update size of reg. spills area
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@ -307,18 +345,18 @@ MachineFunction::allocateSpilledValue(const TargetMachine& target,
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}
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int
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MachineFunction::pushTempValue(const TargetMachine& target,
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unsigned int size)
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MachineFunctionInfo::pushTempValue(unsigned size)
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{
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unsigned int align = SizeToAlignment(size, target);
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unsigned align = SizeToAlignment(size, MF.getTarget());
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bool growUp;
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int firstOffset = target.getFrameInfo().getTmpAreaOffset(*this, growUp);
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int firstOffset = MF.getTarget().getFrameInfo().getTmpAreaOffset(MF, growUp);
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int offset = growUp? firstOffset + currentTmpValuesSize
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: firstOffset - (currentTmpValuesSize + size);
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int aligned = target.getFrameInfo().adjustAlignment(offset, growUp, align);
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int aligned = MF.getTarget().getFrameInfo().adjustAlignment(offset, growUp,
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align);
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size += abs(aligned - offset); // include alignment padding in size
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incrementTmpAreaSize(size); // update "current" size of tmp area
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@ -326,14 +364,12 @@ MachineFunction::pushTempValue(const TargetMachine& target,
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return aligned;
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}
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void
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MachineFunction::popAllTempValues(const TargetMachine& target)
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{
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void MachineFunctionInfo::popAllTempValues() {
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resetTmpAreaSize(); // clear tmp area to reuse
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}
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int
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MachineFunction::getOffset(const Value* val) const
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MachineFunctionInfo::getOffset(const Value* val) const
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{
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hash_map<const Value*, int>::const_iterator pair = offsets.find(val);
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return (pair == offsets.end()) ? INVALID_FRAME_OFFSET : pair->second;
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