// Allow the target machine to make final modifications to the function
// before the frame layout is finalized.
- Fn.getTarget().getRegisterInfo()->processFunctionBeforeFrameFinalized(Fn);
+ TRI->processFunctionBeforeFrameFinalized(Fn);
// Calculate actual frame offsets for all of the abstract stack objects...
calculateFrameObjectOffsets(Fn);
// Loop over all of the stack objects, assigning sequential addresses...
MachineFrameInfo *FFI = Fn.getFrameInfo();
- unsigned MaxAlign = 0;
+ unsigned MaxAlign = FFI->getMaxAlignment();
// Start at the beginning of the local area.
// The Offset is the distance from the stack top in the direction
FFI->setObjectOffset(i, -Offset); // Set the computed offset
}
} else {
- for (unsigned i = MaxCSFrameIndex; i >= MinCSFrameIndex; --i) {
+ int MaxCSFI = MaxCSFrameIndex, MinCSFI = MinCSFrameIndex;
+ for (int i = MaxCSFI; i >= MinCSFI ; --i) {
unsigned Align = FFI->getObjectAlignment(i);
// If the alignment of this object is greater than that of the stack, then
// increase the stack alignment to match.
/// prolog and epilog code to the function.
///
void PEI::insertPrologEpilogCode(MachineFunction &Fn) {
+ const TargetRegisterInfo *TRI = Fn.getTarget().getRegisterInfo();
+
// Add prologue to the function...
- Fn.getTarget().getRegisterInfo()->emitPrologue(Fn);
+ TRI->emitPrologue(Fn);
// Add epilogue to restore the callee-save registers in each exiting block
for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
// If last instruction is a return instruction, add an epilogue
if (!I->empty() && I->back().getDesc().isReturn())
- Fn.getTarget().getRegisterInfo()->emitEpilogue(Fn, *I);
+ TRI->emitEpilogue(Fn, *I);
}
}
if (I->getOpcode() == TargetInstrInfo::DECLARE) {
// Ignore it.
++I;
- continue;
+ continue;
}
if (I->getOpcode() == FrameSetupOpcode ||
I->getOpcode() == FrameDestroyOpcode) {
// Remember how much SP has been adjusted to create the call
// frame.
- int Size = I->getOperand(0).getImm();
+ int Size = I->getOperand(0).getImm();
- if ((!StackGrowsDown && I->getOpcode() == FrameSetupOpcode) ||
- (StackGrowsDown && I->getOpcode() == FrameDestroyOpcode))
- Size = -Size;
+ if ((!StackGrowsDown && I->getOpcode() == FrameSetupOpcode) ||
+ (StackGrowsDown && I->getOpcode() == FrameDestroyOpcode))
+ Size = -Size;
- SPAdj += Size;
+ SPAdj += Size;
- MachineBasicBlock::iterator PrevI = prior(I);
- TRI.eliminateCallFramePseudoInstr(Fn, *BB, I);
+ MachineBasicBlock::iterator PrevI = prior(I);
+ TRI.eliminateCallFramePseudoInstr(Fn, *BB, I);
- // Visit the instructions created by eliminateCallFramePseudoInstr().
- I = next(PrevI);
- continue;
+ // Visit the instructions created by eliminateCallFramePseudoInstr().
+ I = next(PrevI);
+ continue;
}
bool DoIncr = true;
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i)
- if (MI->getOperand(i).isFrameIndex()) {
- // Some instructions (e.g. inline asm instructions) can have
- // multiple frame indices and/or cause eliminateFrameIndex
- // to insert more than one instruction. We need the register
- // scavenger to go through all of these instructions so that
- // it can update its register information. We keep the
- // iterator at the point before insertion so that we can
- // revisit them in full.
- bool AtBeginning = (I == BB->begin());
- if (!AtBeginning) --I;
-
- // If this instruction has a FrameIndex operand, we need to
- // use that target machine register info object to eliminate
- // it.
- TRI.eliminateFrameIndex(MI, SPAdj, RS);
-
- // Reset the iterator if we were at the beginning of the BB.
- if (AtBeginning) {
- I = BB->begin();
- DoIncr = false;
- }
-
- MI = 0;
- break;
- }
+ if (MI->getOperand(i).isFrameIndex()) {
+ // Some instructions (e.g. inline asm instructions) can have
+ // multiple frame indices and/or cause eliminateFrameIndex
+ // to insert more than one instruction. We need the register
+ // scavenger to go through all of these instructions so that
+ // it can update its register information. We keep the
+ // iterator at the point before insertion so that we can
+ // revisit them in full.
+ bool AtBeginning = (I == BB->begin());
+ if (!AtBeginning) --I;
+
+ // If this instruction has a FrameIndex operand, we need to
+ // use that target machine register info object to eliminate
+ // it.
+ TRI.eliminateFrameIndex(MI, SPAdj, RS);
+
+ // Reset the iterator if we were at the beginning of the BB.
+ if (AtBeginning) {
+ I = BB->begin();
+ DoIncr = false;
+ }
+
+ MI = 0;
+ break;
+ }
if (DoIncr) ++I;