MachineFunction: Return reference for getFrameInfo(); NFC
getFrameInfo() never returns nullptr so we should use a reference
instead of a pointer.
llvm-svn: 277017
diff --git a/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp b/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
index ccaed49..691a9af 100644
--- a/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
@@ -67,7 +67,7 @@
RegScavenger *RS) const {
TargetFrameLowering::determineCalleeSaves(MF, SavedRegs, RS);
- MachineFrameInfo *MFFrame = MF.getFrameInfo();
+ MachineFrameInfo &MFFrame = MF.getFrameInfo();
const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
bool HasFP = hasFP(MF);
SystemZMachineFunctionInfo *MFI = MF.getInfo<SystemZMachineFunctionInfo>();
@@ -94,7 +94,7 @@
// If the function calls other functions, record that the return
// address register will be clobbered.
- if (MFFrame->hasCalls())
+ if (MFFrame.hasCalls())
SavedRegs.set(SystemZ::R14D);
// If we are saving GPRs other than the stack pointer, we might as well
@@ -276,16 +276,16 @@
void SystemZFrameLowering::
processFunctionBeforeFrameFinalized(MachineFunction &MF,
RegScavenger *RS) const {
- MachineFrameInfo *MFFrame = MF.getFrameInfo();
- uint64_t MaxReach = (MFFrame->estimateStackSize(MF) +
+ MachineFrameInfo &MFFrame = MF.getFrameInfo();
+ uint64_t MaxReach = (MFFrame.estimateStackSize(MF) +
SystemZMC::CallFrameSize * 2);
if (!isUInt<12>(MaxReach)) {
// We may need register scavenging slots if some parts of the frame
// are outside the reach of an unsigned 12-bit displacement.
// Create 2 for the case where both addresses in an MVC are
// out of range.
- RS->addScavengingFrameIndex(MFFrame->CreateStackObject(8, 8, false));
- RS->addScavengingFrameIndex(MFFrame->CreateStackObject(8, 8, false));
+ RS->addScavengingFrameIndex(MFFrame.CreateStackObject(8, 8, false));
+ RS->addScavengingFrameIndex(MFFrame.CreateStackObject(8, 8, false));
}
}
@@ -321,14 +321,14 @@
void SystemZFrameLowering::emitPrologue(MachineFunction &MF,
MachineBasicBlock &MBB) const {
assert(&MF.front() == &MBB && "Shrink-wrapping not yet supported");
- MachineFrameInfo *MFFrame = MF.getFrameInfo();
+ MachineFrameInfo &MFFrame = MF.getFrameInfo();
auto *ZII =
static_cast<const SystemZInstrInfo *>(MF.getSubtarget().getInstrInfo());
SystemZMachineFunctionInfo *ZFI = MF.getInfo<SystemZMachineFunctionInfo>();
MachineBasicBlock::iterator MBBI = MBB.begin();
MachineModuleInfo &MMI = MF.getMMI();
const MCRegisterInfo *MRI = MMI.getContext().getRegisterInfo();
- const std::vector<CalleeSavedInfo> &CSI = MFFrame->getCalleeSavedInfo();
+ const std::vector<CalleeSavedInfo> &CSI = MFFrame.getCalleeSavedInfo();
bool HasFP = hasFP(MF);
// Debug location must be unknown since the first debug location is used
@@ -478,14 +478,14 @@
bool SystemZFrameLowering::hasFP(const MachineFunction &MF) const {
return (MF.getTarget().Options.DisableFramePointerElim(MF) ||
- MF.getFrameInfo()->hasVarSizedObjects() ||
+ MF.getFrameInfo().hasVarSizedObjects() ||
MF.getInfo<SystemZMachineFunctionInfo>()->getManipulatesSP());
}
int SystemZFrameLowering::getFrameIndexReference(const MachineFunction &MF,
int FI,
unsigned &FrameReg) const {
- const MachineFrameInfo *MFFrame = MF.getFrameInfo();
+ const MachineFrameInfo &MFFrame = MF.getFrameInfo();
const TargetRegisterInfo *RI = MF.getSubtarget().getRegisterInfo();
// Fill in FrameReg output argument.
@@ -494,8 +494,8 @@
// Start with the offset of FI from the top of the caller-allocated frame
// (i.e. the top of the 160 bytes allocated by the caller). This initial
// offset is therefore negative.
- int64_t Offset = (MFFrame->getObjectOffset(FI) +
- MFFrame->getOffsetAdjustment());
+ int64_t Offset = (MFFrame.getObjectOffset(FI) +
+ MFFrame.getOffsetAdjustment());
// Make the offset relative to the incoming stack pointer.
Offset -= getOffsetOfLocalArea();
@@ -508,15 +508,15 @@
uint64_t SystemZFrameLowering::
getAllocatedStackSize(const MachineFunction &MF) const {
- const MachineFrameInfo *MFFrame = MF.getFrameInfo();
+ const MachineFrameInfo &MFFrame = MF.getFrameInfo();
// Start with the size of the local variables and spill slots.
- uint64_t StackSize = MFFrame->getStackSize();
+ uint64_t StackSize = MFFrame.getStackSize();
// We need to allocate the ABI-defined 160-byte base area whenever
// we allocate stack space for our own use and whenever we call another
// function.
- if (StackSize || MFFrame->hasVarSizedObjects() || MFFrame->hasCalls())
+ if (StackSize || MFFrame.hasVarSizedObjects() || MFFrame.hasCalls())
StackSize += SystemZMC::CallFrameSize;
return StackSize;