//===- MBlazeRegisterInfo.cpp - MBlaze Register Information -== -*- C++ -*-===//
-//DJ
+//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "mblaze-reg-info"
+#define DEBUG_TYPE "mblaze-frame-info"
#include "MBlaze.h"
#include "MBlazeSubtarget.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineLocation.h"
-#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetInstrInfo.h"
/// MBlaze::R0, return the number that it corresponds to (e.g. 0).
unsigned MBlazeRegisterInfo::getRegisterNumbering(unsigned RegEnum) {
switch (RegEnum) {
- case MBlaze::R0 : return 0;
- case MBlaze::R1 : return 1;
- case MBlaze::R2 : return 2;
- case MBlaze::R3 : return 3;
- case MBlaze::R4 : return 4;
- case MBlaze::R5 : return 5;
- case MBlaze::R6 : return 6;
- case MBlaze::R7 : return 7;
- case MBlaze::R8 : return 8;
- case MBlaze::R9 : return 9;
- case MBlaze::R10 : return 10;
- case MBlaze::R11 : return 11;
- case MBlaze::R12 : return 12;
- case MBlaze::R13 : return 13;
- case MBlaze::R14 : return 14;
- case MBlaze::R15 : return 15;
- case MBlaze::R16 : return 16;
- case MBlaze::R17 : return 17;
- case MBlaze::R18 : return 18;
- case MBlaze::R19 : return 19;
- case MBlaze::R20 : return 20;
- case MBlaze::R21 : return 21;
- case MBlaze::R22 : return 22;
- case MBlaze::R23 : return 23;
- case MBlaze::R24 : return 24;
- case MBlaze::R25 : return 25;
- case MBlaze::R26 : return 26;
- case MBlaze::R27 : return 27;
- case MBlaze::R28 : return 28;
- case MBlaze::R29 : return 29;
- case MBlaze::R30 : return 30;
- case MBlaze::R31 : return 31;
+ case MBlaze::R0 : return 0;
+ case MBlaze::R1 : return 1;
+ case MBlaze::R2 : return 2;
+ case MBlaze::R3 : return 3;
+ case MBlaze::R4 : return 4;
+ case MBlaze::R5 : return 5;
+ case MBlaze::R6 : return 6;
+ case MBlaze::R7 : return 7;
+ case MBlaze::R8 : return 8;
+ case MBlaze::R9 : return 9;
+ case MBlaze::R10 : return 10;
+ case MBlaze::R11 : return 11;
+ case MBlaze::R12 : return 12;
+ case MBlaze::R13 : return 13;
+ case MBlaze::R14 : return 14;
+ case MBlaze::R15 : return 15;
+ case MBlaze::R16 : return 16;
+ case MBlaze::R17 : return 17;
+ case MBlaze::R18 : return 18;
+ case MBlaze::R19 : return 19;
+ case MBlaze::R20 : return 20;
+ case MBlaze::R21 : return 21;
+ case MBlaze::R22 : return 22;
+ case MBlaze::R23 : return 23;
+ case MBlaze::R24 : return 24;
+ case MBlaze::R25 : return 25;
+ case MBlaze::R26 : return 26;
+ case MBlaze::R27 : return 27;
+ case MBlaze::R28 : return 28;
+ case MBlaze::R29 : return 29;
+ case MBlaze::R30 : return 30;
+ case MBlaze::R31 : return 31;
+ case MBlaze::RPC : return 0x0000;
+ case MBlaze::RMSR : return 0x0001;
+ case MBlaze::REAR : return 0x0003;
+ case MBlaze::RESR : return 0x0005;
+ case MBlaze::RFSR : return 0x0007;
+ case MBlaze::RBTR : return 0x000B;
+ case MBlaze::REDR : return 0x000D;
+ case MBlaze::RPID : return 0x1000;
+ case MBlaze::RZPR : return 0x1001;
+ case MBlaze::RTLBX : return 0x1002;
+ case MBlaze::RTLBLO : return 0x1003;
+ case MBlaze::RTLBHI : return 0x1004;
+ case MBlaze::RPVR0 : return 0x2000;
+ case MBlaze::RPVR1 : return 0x2001;
+ case MBlaze::RPVR2 : return 0x2002;
+ case MBlaze::RPVR3 : return 0x2003;
+ case MBlaze::RPVR4 : return 0x2004;
+ case MBlaze::RPVR5 : return 0x2005;
+ case MBlaze::RPVR6 : return 0x2006;
+ case MBlaze::RPVR7 : return 0x2007;
+ case MBlaze::RPVR8 : return 0x2008;
+ case MBlaze::RPVR9 : return 0x2009;
+ case MBlaze::RPVR10 : return 0x200A;
+ case MBlaze::RPVR11 : return 0x200B;
default: llvm_unreachable("Unknown register number!");
}
return 0; // Not reached
return 0; // Not reached
}
+unsigned MBlazeRegisterInfo::getSpecialRegisterFromNumbering(unsigned Reg) {
+ switch (Reg) {
+ case 0x0000 : return MBlaze::RPC;
+ case 0x0001 : return MBlaze::RMSR;
+ case 0x0003 : return MBlaze::REAR;
+ case 0x0005 : return MBlaze::RESR;
+ case 0x0007 : return MBlaze::RFSR;
+ case 0x000B : return MBlaze::RBTR;
+ case 0x000D : return MBlaze::REDR;
+ case 0x1000 : return MBlaze::RPID;
+ case 0x1001 : return MBlaze::RZPR;
+ case 0x1002 : return MBlaze::RTLBX;
+ case 0x1003 : return MBlaze::RTLBLO;
+ case 0x1004 : return MBlaze::RTLBHI;
+ case 0x2000 : return MBlaze::RPVR0;
+ case 0x2001 : return MBlaze::RPVR1;
+ case 0x2002 : return MBlaze::RPVR2;
+ case 0x2003 : return MBlaze::RPVR3;
+ case 0x2004 : return MBlaze::RPVR4;
+ case 0x2005 : return MBlaze::RPVR5;
+ case 0x2006 : return MBlaze::RPVR6;
+ case 0x2007 : return MBlaze::RPVR7;
+ case 0x2008 : return MBlaze::RPVR8;
+ case 0x2009 : return MBlaze::RPVR9;
+ case 0x200A : return MBlaze::RPVR10;
+ case 0x200B : return MBlaze::RPVR11;
+ default: llvm_unreachable("Unknown register number!");
+ }
+ return 0; // Not reached
+}
+
+bool MBlazeRegisterInfo::isRegister(unsigned Reg) {
+ return Reg <= 31;
+}
+
+bool MBlazeRegisterInfo::isSpecialRegister(unsigned Reg) {
+ switch (Reg) {
+ case 0x0000 : case 0x0001 : case 0x0003 : case 0x0005 :
+ case 0x0007 : case 0x000B : case 0x000D : case 0x1000 :
+ case 0x1001 : case 0x1002 : case 0x1003 : case 0x1004 :
+ case 0x2000 : case 0x2001 : case 0x2002 : case 0x2003 :
+ case 0x2004 : case 0x2005 : case 0x2006 : case 0x2007 :
+ case 0x2008 : case 0x2009 : case 0x200A : case 0x200B :
+ return true;
+
+ default:
+ return false;
+ }
+ return false; // Not reached
+}
+
unsigned MBlazeRegisterInfo::getPICCallReg() {
return MBlaze::R20;
}
void MBlazeRegisterInfo::
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
- const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+ const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
if (!TFI->hasReservedCallFrame(MF)) {
// If we have a frame pointer, turn the adjcallstackup instruction into a
// We need to keep the stack aligned properly. To do this, we round the
// amount of space needed for the outgoing arguments up to the next
// alignment boundary.
- unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment();
+ unsigned Align = TFI->getStackAlignment();
Amount = (Amount+Align-1)/Align*Align;
MachineInstr *New;
if (Old->getOpcode() == MBlaze::ADJCALLSTACKDOWN) {
- New = BuildMI(MF, Old->getDebugLoc(), TII.get(MBlaze::ADDI), MBlaze::R1)
+ New = BuildMI(MF,Old->getDebugLoc(),TII.get(MBlaze::ADDIK),MBlaze::R1)
.addReg(MBlaze::R1).addImm(-Amount);
} else {
assert(Old->getOpcode() == MBlaze::ADJCALLSTACKUP);
- New = BuildMI(MF, Old->getDebugLoc(), TII.get(MBlaze::ADDI), MBlaze::R1)
+ New = BuildMI(MF,Old->getDebugLoc(),TII.get(MBlaze::ADDIK),MBlaze::R1)
.addReg(MBlaze::R1).addImm(Amount);
}
MachineInstr &MI = *II;
MachineFunction &MF = *MI.getParent()->getParent();
MachineFrameInfo *MFI = MF.getFrameInfo();
- MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
unsigned i = 0;
while (!MI.getOperand(i).isFI()) {
unsigned oi = i == 2 ? 1 : 2;
- DEBUG(errs() << "\nFunction : " << MF.getFunction()->getName() << "\n";
- errs() << "<--------->\n" << MI);
+ DEBUG(dbgs() << "\nFunction : " << MF.getFunction()->getName() << "\n";
+ dbgs() << "<--------->\n" << MI);
int FrameIndex = MI.getOperand(i).getIndex();
- int stackSize = MF.getFrameInfo()->getStackSize();
- int spOffset = MF.getFrameInfo()->getObjectOffset(FrameIndex);
+ int stackSize = MFI->getStackSize();
+ int spOffset = MFI->getObjectOffset(FrameIndex);
- DEBUG(errs() << "FrameIndex : " << FrameIndex << "\n"
+ DEBUG(MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
+ dbgs() << "FrameIndex : " << FrameIndex << "\n"
<< "spOffset : " << spOffset << "\n"
- << "stackSize : " << stackSize << "\n");
+ << "stackSize : " << stackSize << "\n"
+ << "isFixed : " << MFI->isFixedObjectIndex(FrameIndex) << "\n"
+ << "isLiveIn : " << MBlazeFI->isLiveIn(FrameIndex) << "\n"
+ << "isSpill : " << MFI->isSpillSlotObjectIndex(FrameIndex)
+ << "\n" );
// as explained on LowerFormalArguments, detect negative offsets
// and adjust SPOffsets considering the final stack size.
int Offset = (spOffset < 0) ? (stackSize - spOffset) : spOffset;
Offset += MI.getOperand(oi).getImm();
- if (!MFI->isFixedObjectIndex(FrameIndex) && !MBlazeFI->isLiveIn(FrameIndex) && spOffset >= 0)
- Offset -= MBlazeFI->getStackAdjust();
- DEBUG(errs() << "Offset : " << Offset << "\n" << "<--------->\n");
+ DEBUG(dbgs() << "Offset : " << Offset << "\n" << "<--------->\n");
MI.getOperand(oi).ChangeToImmediate(Offset);
MI.getOperand(i).ChangeToRegister(getFrameRegister(MF), false);
}
unsigned MBlazeRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
- const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+ const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
return TFI->hasFP(MF) ? MBlaze::R19 : MBlaze::R1;
}
projects / oota-llvm.git / blobdiff