1 //===-- MachineFrameInfo.cpp ---------------------------------------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
22 #include "llvm/Config/llvm-config.h"
59   int Index = (int)Objects.size() - NumFixedObjects - 1;  in CreateStackObject()
69   int Index = (int)Objects.size() - NumFixedObjects - 1;  in CreateSpillStackObject()
80   return (int)Objects.size()-NumFixedObjects-1;  in CreateVariableSizedObject()
86   // The alignment of the frame index can be determined from its offset from  in CreateFixedObject()
87   // the incoming frame position.  If the frame object is at offset 32 and  in CreateFixedObject()
88   // the stack is guaranteed to be 16-byte aligned, then we know that the  in CreateFixedObject()
89   // object is 16-byte aligned. Note that unlike the non-fixed case, if the  in CreateFixedObject()
99   return -++NumFixedObjects;  in CreateFixedObject()
112   return -++NumFixedObjects;  in CreateFixedSpillStackObject()
117   BitVector BV(TRI->getNumRegs());  in getPristineRegs()
131     for (MCPhysReg S : TRI->subregs_inclusive(I.getReg()))  in getPristineRegs()
141   int64_t Offset = 0;  in estimateStackSize()  local
143   // This code is very, very similar to PEI::calculateFrameObjectOffsets().  in estimateStackSize()
144   // It really should be refactored to share code. Until then, changes  in estimateStackSize()
151     int64_t FixedOff = -getObjectOffset(i);  in estimateStackSize()
152     if (FixedOff > Offset) Offset = FixedOff;  in estimateStackSize()
158     Offset += getObjectSize(i);  in estimateStackSize()
161     Offset = alignTo(Offset, Alignment);  in estimateStackSize()
166   if (adjustsStack() && TFI->hasReservedCallFrame(MF))  in estimateStackSize()
167     Offset += getMaxCallFrameSize();  in estimateStackSize()
176       (RegInfo->hasStackRealignment(MF) && getObjectIndexEnd() != 0))  in estimateStackSize()
177     StackAlign = TFI->getStackAlign();  in estimateStackSize()
179     StackAlign = TFI->getTransientStackAlign();  in estimateStackSize()
184   return alignTo(Offset, StackAlign);  in estimateStackSize()
203           FrameSDOps->push_back(&MI);  in computeMaxCallFrameSize()
209 void MachineFrameInfo::print(const MachineFunction &MF, raw_ostream &OS) const{  in print()
213   int ValOffset = (FI ? FI->getOffsetOfLocalArea() : 0);  in print()
215   OS << "Frame Objects:\n";  in print()
219     OS << "  fi#" << (int)(i-NumFixedObjects) << ": ";  in print()
222       OS << "id=" << static_cast<unsigned>(SO.StackID) << ' ';  in print()
225       OS << "dead\n";  in print()
229       OS << "variable sized";  in print()
231       OS << "size=" << SO.Size;  in print()
232     OS << ", align=" << SO.Alignment.value();  in print()
235       OS << ", fixed";  in print()
236     if (i < NumFixedObjects || SO.SPOffset != -1) {  in print()
237       int64_t Off = SO.SPOffset - ValOffset;  in print()
238       OS << ", at location [SP";  in print()
240         OS << "+" << Off;  in print()
242         OS << Off;  in print()
243       OS << "]";  in print()
245     OS << "\n";  in print()