* Prune #includes

* Remove MachineCodeFor(Method|VMInstr) code to their own .cpp files


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1649 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-02-03 07:46:01 +00:00
parent fb3b1ec982
commit 3801f6d383

View File

@ -12,20 +12,11 @@
// 7/2/01 - Vikram Adve - Created
//**************************************************************************/
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/Target/MachineFrameInfo.h"
#include "llvm/Target/MachineRegInfo.h"
#include "llvm/Target/MachineCacheInfo.h"
#include "llvm/Method.h"
#include "llvm/iOther.h"
#include "llvm/Instruction.h"
#include "llvm/Value.h"
#include <iostream>
using std::cerr;
AnnotationID MachineCodeForMethod::AID(
AnnotationManager::getID("MachineCodeForMethodAnnotation"));
//************************ Class Implementations **************************/
@ -188,252 +179,3 @@ std::ostream &operator<<(std::ostream &os, const MachineOperand &mop)
return os;
}
// Align data larger than one L1 cache line on L1 cache line boundaries.
// Align all smaller data on the next higher 2^x boundary (4, 8, ...).
//
// THIS FUNCTION HAS BEEN COPIED FROM EMITASSEMBLY.CPP AND
// SHOULD BE USED DIRECTLY THERE
//
inline unsigned int
SizeToAlignment(unsigned int size, const TargetMachine& target)
{
unsigned short cacheLineSize = target.getCacheInfo().getCacheLineSize(1);
if (size > (unsigned) cacheLineSize / 2)
return cacheLineSize;
else
for (unsigned sz=1; /*no condition*/; sz *= 2)
if (sz >= size)
return sz;
}
static unsigned int
ComputeMaxOptionalArgsSize(const TargetMachine& target, const Method* method)
{
const MachineFrameInfo& frameInfo = target.getFrameInfo();
unsigned int maxSize = 0;
for (Method::const_inst_iterator I=method->inst_begin(),E=method->inst_end();
I != E; ++I)
if ((*I)->getOpcode() == Instruction::Call)
{
CallInst* callInst = cast<CallInst>(*I);
unsigned int numOperands = callInst->getNumOperands() - 1;
int numExtra = (int) numOperands - frameInfo.getNumFixedOutgoingArgs();
if (numExtra <= 0)
continue;
unsigned int sizeForThisCall;
if (frameInfo.argsOnStackHaveFixedSize())
{
int argSize = frameInfo.getSizeOfEachArgOnStack();
sizeForThisCall = numExtra * (unsigned) argSize;
}
else
{
assert(0 && "UNTESTED CODE: Size per stack argument is not fixed on this architecture: use actual arg sizes to compute MaxOptionalArgsSize");
sizeForThisCall = 0;
for (unsigned i=0; i < numOperands; ++i)
sizeForThisCall += target.findOptimalStorageSize(callInst->
getOperand(i)->getType());
}
if (maxSize < sizeForThisCall)
maxSize = sizeForThisCall;
}
return maxSize;
}
/*ctor*/
MachineCodeForMethod::MachineCodeForMethod(const Method* _M,
const TargetMachine& target)
: Annotation(AID),
method(_M), compiledAsLeaf(false), staticStackSize(0),
automaticVarsSize(0), regSpillsSize(0),
currentOptionalArgsSize(0), maxOptionalArgsSize(0),
currentTmpValuesSize(0)
{
maxOptionalArgsSize = ComputeMaxOptionalArgsSize(target, method);
staticStackSize = maxOptionalArgsSize +
target.getFrameInfo().getMinStackFrameSize();
}
int
MachineCodeForMethod::allocateLocalVar(const TargetMachine& target,
const Value* val,
unsigned int size)
{
// Check if we've allocated a stack slot for this value already
//
int offset = getOffset(val);
if (offset == INVALID_FRAME_OFFSET)
{
bool growUp;
int firstOffset =target.getFrameInfo().getFirstAutomaticVarOffset(*this,
growUp);
unsigned char align;
if (size == 0)
{
size = target.findOptimalStorageSize(val->getType());
// align = target.DataLayout.getTypeAlignment(val->getType());
}
align = SizeToAlignment(size, target);
offset = getAutomaticVarsSize();
if (! growUp)
offset += size;
if (unsigned int mod = offset % align)
{
offset += align - mod;
size += align - mod;
}
offset = growUp? firstOffset + offset
: firstOffset - offset;
offsets[val] = offset;
incrementAutomaticVarsSize(size);
}
return offset;
}
int
MachineCodeForMethod::allocateSpilledValue(const TargetMachine& target,
const Type* type)
{
unsigned int size = target.findOptimalStorageSize(type);
unsigned char align = target.DataLayout.getTypeAlignment(type);
bool growUp;
int firstOffset = target.getFrameInfo().getRegSpillAreaOffset(*this, growUp);
int offset = getRegSpillsSize();
if (! growUp)
offset += size;
if (unsigned int mod = offset % align)
{
offset += align - mod;
size += align - mod;
}
offset = growUp? firstOffset + offset
: firstOffset - offset;
incrementRegSpillsSize(size);
return offset;
}
int
MachineCodeForMethod::allocateOptionalArg(const TargetMachine& target,
const Type* type)
{
const MachineFrameInfo& frameInfo = target.getFrameInfo();
int size = MAXINT;
if (frameInfo.argsOnStackHaveFixedSize())
size = frameInfo.getSizeOfEachArgOnStack();
else
{
size = target.findOptimalStorageSize(type);
assert(0 && "UNTESTED CODE: Size per stack argument is not fixed on this architecture: use actual argument sizes for computing optional arg offsets");
}
unsigned char align = target.DataLayout.getTypeAlignment(type);
bool growUp;
int firstOffset = frameInfo.getFirstOptionalOutgoingArgOffset(*this, growUp);
int offset = getCurrentOptionalArgsSize();
if (! growUp)
offset += size;
if (unsigned int mod = offset % align)
{
offset += align - mod;
size += align - mod;
}
offset = growUp? firstOffset + offset
: firstOffset - offset;
incrementCurrentOptionalArgsSize(size);
return offset;
}
void
MachineCodeForMethod::resetOptionalArgs(const TargetMachine& target)
{
currentOptionalArgsSize = 0;
}
int
MachineCodeForMethod::pushTempValue(const TargetMachine& target,
unsigned int size)
{
// Compute a power-of-2 alignment according to the possible sizes,
// but not greater than the alignment of the largest type we support
// (currently a double word -- see class TargetData).
unsigned char align = 1;
for (; align < size && align < target.DataLayout.getDoubleAlignment();
align = 2*align)
;
bool growUp;
int firstTmpOffset = target.getFrameInfo().getTmpAreaOffset(*this, growUp);
int offset = currentTmpValuesSize;
if (! growUp)
offset += size;
if (unsigned int mod = offset % align)
{
offset += align - mod;
size += align - mod;
}
offset = growUp ? firstTmpOffset + offset : firstTmpOffset - offset;
currentTmpValuesSize += size;
return offset;
}
void
MachineCodeForMethod::popAllTempValues(const TargetMachine& target)
{
currentTmpValuesSize = 0;
}
int
MachineCodeForMethod::getOffset(const Value* val) const
{
std::hash_map<const Value*, int>::const_iterator pair = offsets.find(val);
return (pair == offsets.end())? INVALID_FRAME_OFFSET : pair->second;
}
void
MachineCodeForMethod::dump() const
{
cerr << "\n" << method->getReturnType()
<< " \"" << method->getName() << "\"\n";
for (Method::const_iterator BI = method->begin(); BI != method->end(); ++BI)
{
BasicBlock* bb = *BI;
cerr << "\n"
<< (bb->hasName()? bb->getName() : "Label")
<< " (" << bb << ")" << ":\n";
MachineCodeForBasicBlock& mvec = bb->getMachineInstrVec();
for (unsigned i=0; i < mvec.size(); i++)
cerr << "\t" << *mvec[i];
}
cerr << "\nEnd method \"" << method->getName() << "\"\n\n";
}