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Rename MachineFrameInfo variables to MFI, for consistency with 

the rest of CodeGen.

llvm-svn: 101146
This commit is contained in:
Dan Gohman 2010-04-13 16:56:45 +00:00
parent 6b1b1e4358
commit dcacef3188
1 changed files with 41 additions and 41 deletions
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82
llvm/lib/CodeGen/PrologEpilogInserter.cpp
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@ -131,10 +131,10 @@ void PEI::getAnalysisUsage(AnalysisUsage &AU) const {
/// pseudo instructions.
void PEI::calculateCallsInformation(MachineFunction &Fn) {
const TargetRegisterInfo *RegInfo = Fn.getTarget().getRegisterInfo();
MachineFrameInfo *FFI = Fn.getFrameInfo();
MachineFrameInfo *MFI = Fn.getFrameInfo();
unsigned MaxCallFrameSize = 0;
bool HasCalls = FFI->hasCalls();
bool HasCalls = MFI->hasCalls();
// Get the function call frame set-up and tear-down instruction opcode
int FrameSetupOpcode = RegInfo->getCallFrameSetupOpcode();
@ -162,8 +162,8 @@ void PEI::calculateCallsInformation(MachineFunction &Fn) {
HasCalls = true;
}
FFI->setHasCalls(HasCalls);
FFI->setMaxCallFrameSize(MaxCallFrameSize);
MFI->setHasCalls(HasCalls);
MFI->setMaxCallFrameSize(MaxCallFrameSize);
for (std::vector<MachineBasicBlock::iterator>::iterator
i = FrameSDOps.begin(), e = FrameSDOps.end(); i != e; ++i) {
@ -184,7 +184,7 @@ void PEI::calculateCallsInformation(MachineFunction &Fn) {
void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
const TargetRegisterInfo *RegInfo = Fn.getTarget().getRegisterInfo();
const TargetFrameInfo *TFI = Fn.getTarget().getFrameInfo();
MachineFrameInfo *FFI = Fn.getFrameInfo();
MachineFrameInfo *MFI = Fn.getFrameInfo();
// Get the callee saved register list...
const unsigned *CSRegs = RegInfo->getCalleeSavedRegs(&Fn);
@ -255,19 +255,19 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
// the TargetRegisterClass if the stack alignment is smaller. Use the
// min.
Align = std::min(Align, StackAlign);
FrameIdx = FFI->CreateStackObject(RC->getSize(), Align, true);
FrameIdx = MFI->CreateStackObject(RC->getSize(), Align, true);
if ((unsigned)FrameIdx < MinCSFrameIndex) MinCSFrameIndex = FrameIdx;
if ((unsigned)FrameIdx > MaxCSFrameIndex) MaxCSFrameIndex = FrameIdx;
} else {
// Spill it to the stack where we must.
FrameIdx = FFI->CreateFixedObject(RC->getSize(), FixedSlot->Offset,
FrameIdx = MFI->CreateFixedObject(RC->getSize(), FixedSlot->Offset,
true, false);
}
I->setFrameIdx(FrameIdx);
}
FFI->setCalleeSavedInfo(CSI);
MFI->setCalleeSavedInfo(CSI);
}
/// insertCSRSpillsAndRestores - Insert spill and restore code for
@ -275,10 +275,10 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
///
void PEI::insertCSRSpillsAndRestores(MachineFunction &Fn) {
// Get callee saved register information.
MachineFrameInfo *FFI = Fn.getFrameInfo();
const std::vector<CalleeSavedInfo> &CSI = FFI->getCalleeSavedInfo();
MachineFrameInfo *MFI = Fn.getFrameInfo();
const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
FFI->setCalleeSavedInfoValid(true);
MFI->setCalleeSavedInfoValid(true);
// Early exit if no callee saved registers are modified!
if (CSI.empty())
@ -436,14 +436,14 @@ void PEI::insertCSRSpillsAndRestores(MachineFunction &Fn) {
/// AdjustStackOffset - Helper function used to adjust the stack frame offset.
static inline void
AdjustStackOffset(MachineFrameInfo *FFI, int FrameIdx,
AdjustStackOffset(MachineFrameInfo *MFI, int FrameIdx,
bool StackGrowsDown, int64_t &Offset,
unsigned &MaxAlign) {
// If the stack grows down, add the object size to find the lowest address.
if (StackGrowsDown)
Offset += FFI->getObjectSize(FrameIdx);
Offset += MFI->getObjectSize(FrameIdx);
unsigned Align = FFI->getObjectAlignment(FrameIdx);
unsigned Align = MFI->getObjectAlignment(FrameIdx);
// If the alignment of this object is greater than that of the stack, then
// increase the stack alignment to match.
@ -453,10 +453,10 @@ AdjustStackOffset(MachineFrameInfo *FFI, int FrameIdx,
Offset = (Offset + Align - 1) / Align * Align;
if (StackGrowsDown) {
FFI->setObjectOffset(FrameIdx, -Offset); // Set the computed offset
MFI->setObjectOffset(FrameIdx, -Offset); // Set the computed offset
} else {
FFI->setObjectOffset(FrameIdx, Offset);
Offset += FFI->getObjectSize(FrameIdx);
MFI->setObjectOffset(FrameIdx, Offset);
Offset += MFI->getObjectSize(FrameIdx);
}
}
@ -470,7 +470,7 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
TFI.getStackGrowthDirection() == TargetFrameInfo::StackGrowsDown;
// Loop over all of the stack objects, assigning sequential addresses...
MachineFrameInfo *FFI = Fn.getFrameInfo();
MachineFrameInfo *MFI = Fn.getFrameInfo();
// Start at the beginning of the local area.
// The Offset is the distance from the stack top in the direction
@ -487,17 +487,17 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
// We currently don't support filling in holes in between fixed sized
// objects, so we adjust 'Offset' to point to the end of last fixed sized
// preallocated object.
for (int i = FFI->getObjectIndexBegin(); i != 0; ++i) {
for (int i = MFI->getObjectIndexBegin(); i != 0; ++i) {
int64_t FixedOff;
if (StackGrowsDown) {
// The maximum distance from the stack pointer is at lower address of
// the object -- which is given by offset. For down growing stack
// the offset is negative, so we negate the offset to get the distance.
FixedOff = -FFI->getObjectOffset(i);
FixedOff = -MFI->getObjectOffset(i);
} else {
// The maximum distance from the start pointer is at the upper
// address of the object.
FixedOff = FFI->getObjectOffset(i) + FFI->getObjectSize(i);
FixedOff = MFI->getObjectOffset(i) + MFI->getObjectSize(i);
}
if (FixedOff > Offset) Offset = FixedOff;
}
@ -508,27 +508,27 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
for (unsigned i = MinCSFrameIndex; i <= MaxCSFrameIndex; ++i) {
// If stack grows down, we need to add size of find the lowest
// address of the object.
Offset += FFI->getObjectSize(i);
Offset += MFI->getObjectSize(i);
unsigned Align = FFI->getObjectAlignment(i);
unsigned Align = MFI->getObjectAlignment(i);
// Adjust to alignment boundary
Offset = (Offset+Align-1)/Align*Align;
FFI->setObjectOffset(i, -Offset); // Set the computed offset
MFI->setObjectOffset(i, -Offset); // Set the computed offset
}
} else {
int MaxCSFI = MaxCSFrameIndex, MinCSFI = MinCSFrameIndex;
for (int i = MaxCSFI; i >= MinCSFI ; --i) {
unsigned Align = FFI->getObjectAlignment(i);
unsigned Align = MFI->getObjectAlignment(i);
// Adjust to alignment boundary
Offset = (Offset+Align-1)/Align*Align;
FFI->setObjectOffset(i, Offset);
Offset += FFI->getObjectSize(i);
MFI->setObjectOffset(i, Offset);
Offset += MFI->getObjectSize(i);
}
}
unsigned MaxAlign = FFI->getMaxAlignment();
unsigned MaxAlign = MFI->getMaxAlignment();
// Make sure the special register scavenging spill slot is closest to the
// frame pointer if a frame pointer is required.
@ -536,28 +536,28 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
if (RS && RegInfo->hasFP(Fn) && !RegInfo->needsStackRealignment(Fn)) {
int SFI = RS->getScavengingFrameIndex();
if (SFI >= 0)
AdjustStackOffset(FFI, SFI, StackGrowsDown, Offset, MaxAlign);
AdjustStackOffset(MFI, SFI, StackGrowsDown, Offset, MaxAlign);
}
// Make sure that the stack protector comes before the local variables on the
// stack.
if (FFI->getStackProtectorIndex() >= 0)
AdjustStackOffset(FFI, FFI->getStackProtectorIndex(), StackGrowsDown,
if (MFI->getStackProtectorIndex() >= 0)
AdjustStackOffset(MFI, MFI->getStackProtectorIndex(), StackGrowsDown,
Offset, MaxAlign);
// Then assign frame offsets to stack objects that are not used to spill
// callee saved registers.
for (unsigned i = 0, e = FFI->getObjectIndexEnd(); i != e; ++i) {
for (unsigned i = 0, e = MFI->getObjectIndexEnd(); i != e; ++i) {
if (i >= MinCSFrameIndex && i <= MaxCSFrameIndex)
continue;
if (RS && (int)i == RS->getScavengingFrameIndex())
continue;
if (FFI->isDeadObjectIndex(i))
if (MFI->isDeadObjectIndex(i))
continue;
if (FFI->getStackProtectorIndex() == (int)i)
if (MFI->getStackProtectorIndex() == (int)i)
continue;
AdjustStackOffset(FFI, i, StackGrowsDown, Offset, MaxAlign);
AdjustStackOffset(MFI, i, StackGrowsDown, Offset, MaxAlign);
}
// Make sure the special register scavenging spill slot is closest to the
@ -565,15 +565,15 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
if (RS && (!RegInfo->hasFP(Fn) || RegInfo->needsStackRealignment(Fn))) {
int SFI = RS->getScavengingFrameIndex();
if (SFI >= 0)
AdjustStackOffset(FFI, SFI, StackGrowsDown, Offset, MaxAlign);
AdjustStackOffset(MFI, SFI, StackGrowsDown, Offset, MaxAlign);
}
if (!RegInfo->targetHandlesStackFrameRounding()) {
// If we have reserved argument space for call sites in the function
// immediately on entry to the current function, count it as part of the
// overall stack size.
if (FFI->hasCalls() && RegInfo->hasReservedCallFrame(Fn))
Offset += FFI->getMaxCallFrameSize();
if (MFI->hasCalls() && RegInfo->hasReservedCallFrame(Fn))
Offset += MFI->getMaxCallFrameSize();
// Round up the size to a multiple of the alignment. If the function has
// any calls or alloca's, align to the target's StackAlignment value to
@ -581,8 +581,8 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
// otherwise, for leaf functions, align to the TransientStackAlignment
// value.
unsigned StackAlign;
if (FFI->hasCalls() || FFI->hasVarSizedObjects() ||
(RegInfo->needsStackRealignment(Fn) && FFI->getObjectIndexEnd() != 0))
if (MFI->hasCalls() || MFI->hasVarSizedObjects() ||
(RegInfo->needsStackRealignment(Fn) && MFI->getObjectIndexEnd() != 0))
StackAlign = TFI.getStackAlignment();
else
StackAlign = TFI.getTransientStackAlignment();
@ -594,7 +594,7 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
}
// Update frame info to pretend that this is part of the stack...
FFI->setStackSize(Offset - LocalAreaOffset);
MFI->setStackSize(Offset - LocalAreaOffset);
}