#include "PPCInstrBuilder.h"
#include "PPCMachineFunctionInfo.h"
#include "PPCSubtarget.h"
+#include "PPCTargetMachine.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
AlwaysBasePointer("ppc-always-use-base-pointer", cl::Hidden, cl::init(false),
cl::desc("Force the use of a base pointer in every function"));
-PPCRegisterInfo::PPCRegisterInfo(const PPCSubtarget &ST)
- : PPCGenRegisterInfo(ST.isPPC64() ? PPC::LR8 : PPC::LR,
- ST.isPPC64() ? 0 : 1,
- ST.isPPC64() ? 0 : 1),
- Subtarget(ST) {
+PPCRegisterInfo::PPCRegisterInfo(const PPCTargetMachine &TM)
+ : PPCGenRegisterInfo(TM.isPPC64() ? PPC::LR8 : PPC::LR,
+ TM.isPPC64() ? 0 : 1,
+ TM.isPPC64() ? 0 : 1),
+ TM(TM) {
ImmToIdxMap[PPC::LD] = PPC::LDX; ImmToIdxMap[PPC::STD] = PPC::STDX;
ImmToIdxMap[PPC::LBZ] = PPC::LBZX; ImmToIdxMap[PPC::STB] = PPC::STBX;
ImmToIdxMap[PPC::LHZ] = PPC::LHZX; ImmToIdxMap[PPC::LHA] = PPC::LHAX;
// Note that PPCInstrInfo::FoldImmediate also directly uses this Kind value
// when it checks for ZERO folding.
if (Kind == 1) {
- if (Subtarget.isPPC64())
+ if (TM.isPPC64())
return &PPC::G8RC_NOX0RegClass;
return &PPC::GPRC_NOR0RegClass;
}
- if (Subtarget.isPPC64())
+ if (TM.isPPC64())
return &PPC::G8RCRegClass;
return &PPC::GPRCRegClass;
}
const MCPhysReg*
PPCRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
+ const PPCSubtarget &Subtarget = MF->getSubtarget<PPCSubtarget>();
if (MF->getFunction()->getCallingConv() == CallingConv::AnyReg) {
if (Subtarget.hasVSX())
return CSR_64_AllRegs_VSX_SaveList;
}
if (Subtarget.isDarwinABI())
- return Subtarget.isPPC64() ? (Subtarget.hasAltivec() ?
- CSR_Darwin64_Altivec_SaveList :
- CSR_Darwin64_SaveList) :
- (Subtarget.hasAltivec() ?
- CSR_Darwin32_Altivec_SaveList :
- CSR_Darwin32_SaveList);
+ return TM.isPPC64()
+ ? (Subtarget.hasAltivec() ? CSR_Darwin64_Altivec_SaveList
+ : CSR_Darwin64_SaveList)
+ : (Subtarget.hasAltivec() ? CSR_Darwin32_Altivec_SaveList
+ : CSR_Darwin32_SaveList);
// On PPC64, we might need to save r2 (but only if it is not reserved).
bool SaveR2 = MF->getRegInfo().isAllocatable(PPC::X2);
- return Subtarget.isPPC64() ? (Subtarget.hasAltivec() ?
- (SaveR2 ? CSR_SVR464_R2_Altivec_SaveList :
- CSR_SVR464_Altivec_SaveList) :
- (SaveR2 ? CSR_SVR464_R2_SaveList :
- CSR_SVR464_SaveList)) :
- (Subtarget.hasAltivec() ?
- CSR_SVR432_Altivec_SaveList :
- CSR_SVR432_SaveList);
+ return TM.isPPC64()
+ ? (Subtarget.hasAltivec()
+ ? (SaveR2 ? CSR_SVR464_R2_Altivec_SaveList
+ : CSR_SVR464_Altivec_SaveList)
+ : (SaveR2 ? CSR_SVR464_R2_SaveList : CSR_SVR464_SaveList))
+ : (Subtarget.hasAltivec() ? CSR_SVR432_Altivec_SaveList
+ : CSR_SVR432_SaveList);
}
-const uint32_t*
-PPCRegisterInfo::getCallPreservedMask(CallingConv::ID CC) const {
+const uint32_t *
+PPCRegisterInfo::getCallPreservedMask(const MachineFunction &MF,
+ CallingConv::ID CC) const {
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
if (CC == CallingConv::AnyReg) {
if (Subtarget.hasVSX())
return CSR_64_AllRegs_VSX_RegMask;
}
if (Subtarget.isDarwinABI())
- return Subtarget.isPPC64() ? (Subtarget.hasAltivec() ?
- CSR_Darwin64_Altivec_RegMask :
- CSR_Darwin64_RegMask) :
- (Subtarget.hasAltivec() ?
- CSR_Darwin32_Altivec_RegMask :
- CSR_Darwin32_RegMask);
-
- return Subtarget.isPPC64() ? (Subtarget.hasAltivec() ?
- CSR_SVR464_Altivec_RegMask :
- CSR_SVR464_RegMask) :
- (Subtarget.hasAltivec() ?
- CSR_SVR432_Altivec_RegMask :
- CSR_SVR432_RegMask);
+ return TM.isPPC64() ? (Subtarget.hasAltivec() ? CSR_Darwin64_Altivec_RegMask
+ : CSR_Darwin64_RegMask)
+ : (Subtarget.hasAltivec() ? CSR_Darwin32_Altivec_RegMask
+ : CSR_Darwin32_RegMask);
+
+ return TM.isPPC64() ? (Subtarget.hasAltivec() ? CSR_SVR464_Altivec_RegMask
+ : CSR_SVR464_RegMask)
+ : (Subtarget.hasAltivec() ? CSR_SVR432_Altivec_RegMask
+ : CSR_SVR432_RegMask);
}
const uint32_t*
BitVector PPCRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
BitVector Reserved(getNumRegs());
- const PPCFrameLowering *PPCFI =
- static_cast<const PPCFrameLowering *>(Subtarget.getFrameLowering());
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
+ const PPCFrameLowering *TFI = getFrameLowering(MF);
// The ZERO register is not really a register, but the representation of r0
// when used in instructions that treat r0 as the constant 0.
}
// On PPC64, r13 is the thread pointer. Never allocate this register.
- if (Subtarget.isPPC64()) {
+ if (TM.isPPC64()) {
Reserved.set(PPC::R13);
Reserved.set(PPC::X1);
Reserved.set(PPC::X13);
- if (PPCFI->needsFP(MF))
+ if (TFI->needsFP(MF))
Reserved.set(PPC::X31);
if (hasBasePointer(MF))
}
}
- if (PPCFI->needsFP(MF))
+ if (TFI->needsFP(MF))
Reserved.set(PPC::R31);
if (hasBasePointer(MF)) {
- if (Subtarget.isSVR4ABI() && !Subtarget.isPPC64() &&
- MF.getTarget().getRelocationModel() == Reloc::PIC_)
+ if (Subtarget.isSVR4ABI() && !TM.isPPC64() &&
+ TM.getRelocationModel() == Reloc::PIC_)
Reserved.set(PPC::R29);
else
Reserved.set(PPC::R30);
}
- if (Subtarget.isSVR4ABI() && !Subtarget.isPPC64() &&
- MF.getTarget().getRelocationModel() == Reloc::PIC_)
+ if (Subtarget.isSVR4ABI() && !TM.isPPC64() &&
+ TM.getRelocationModel() == Reloc::PIC_)
Reserved.set(PPC::R30);
// Reserve Altivec registers when Altivec is unavailable.
unsigned PPCRegisterInfo::getRegPressureLimit(const TargetRegisterClass *RC,
MachineFunction &MF) const {
- const TargetFrameLowering *TFI = Subtarget.getFrameLowering();
+ const PPCFrameLowering *TFI = getFrameLowering(MF);
const unsigned DefaultSafety = 1;
switch (RC->getID()) {
return 32 - DefaultSafety;
case PPC::VSRCRegClassID:
case PPC::VSFRCRegClassID:
+ case PPC::VSSRCRegClassID:
return 64 - DefaultSafety;
case PPC::CRRCRegClassID:
return 8 - DefaultSafety;
const TargetRegisterClass *
PPCRegisterInfo::getLargestLegalSuperClass(const TargetRegisterClass *RC,
const MachineFunction &MF) const {
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
if (Subtarget.hasVSX()) {
// With VSX, we can inflate various sub-register classes to the full VSX
// register set.
return &PPC::VSFRCRegClass;
else if (RC == &PPC::VRRCRegClass)
return &PPC::VSRCRegClass;
+ else if (RC == &PPC::F4RCRegClass && Subtarget.hasP8Vector())
+ return &PPC::VSSRCRegClass;
}
return TargetRegisterInfo::getLargestLegalSuperClass(RC, MF);
MachineFunction &MF = *MBB.getParent();
// Get the frame info.
MachineFrameInfo *MFI = MF.getFrameInfo();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
// Get the instruction info.
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
// Determine whether 64-bit pointers are used.
- bool LP64 = Subtarget.isPPC64();
+ bool LP64 = TM.isPPC64();
DebugLoc dl = MI.getDebugLoc();
// Get the maximum call stack size.
unsigned FrameSize = MFI->getStackSize();
// Get stack alignments.
- unsigned TargetAlign = Subtarget.getFrameLowering()->getStackAlignment();
+ const PPCFrameLowering *TFI = getFrameLowering(MF);
+ unsigned TargetAlign = TFI->getStackAlignment();
unsigned MaxAlign = MFI->getMaxAlignment();
assert((maxCallFrameSize & (MaxAlign-1)) == 0 &&
"Maximum call-frame size not sufficiently aligned");
// Get the instruction's basic block.
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
DebugLoc dl = MI.getDebugLoc();
- bool LP64 = Subtarget.isPPC64();
+ bool LP64 = TM.isPPC64();
const TargetRegisterClass *G8RC = &PPC::G8RCRegClass;
const TargetRegisterClass *GPRC = &PPC::GPRCRegClass;
// Get the instruction's basic block.
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
DebugLoc dl = MI.getDebugLoc();
- bool LP64 = Subtarget.isPPC64();
+ bool LP64 = TM.isPPC64();
const TargetRegisterClass *G8RC = &PPC::G8RCRegClass;
const TargetRegisterClass *GPRC = &PPC::GPRCRegClass;
MBB.erase(II);
}
-static unsigned getCRFromCRBit(unsigned SrcReg) {
- unsigned Reg = 0;
- if (SrcReg == PPC::CR0LT || SrcReg == PPC::CR0GT ||
- SrcReg == PPC::CR0EQ || SrcReg == PPC::CR0UN)
- Reg = PPC::CR0;
- else if (SrcReg == PPC::CR1LT || SrcReg == PPC::CR1GT ||
- SrcReg == PPC::CR1EQ || SrcReg == PPC::CR1UN)
- Reg = PPC::CR1;
- else if (SrcReg == PPC::CR2LT || SrcReg == PPC::CR2GT ||
- SrcReg == PPC::CR2EQ || SrcReg == PPC::CR2UN)
- Reg = PPC::CR2;
- else if (SrcReg == PPC::CR3LT || SrcReg == PPC::CR3GT ||
- SrcReg == PPC::CR3EQ || SrcReg == PPC::CR3UN)
- Reg = PPC::CR3;
- else if (SrcReg == PPC::CR4LT || SrcReg == PPC::CR4GT ||
- SrcReg == PPC::CR4EQ || SrcReg == PPC::CR4UN)
- Reg = PPC::CR4;
- else if (SrcReg == PPC::CR5LT || SrcReg == PPC::CR5GT ||
- SrcReg == PPC::CR5EQ || SrcReg == PPC::CR5UN)
- Reg = PPC::CR5;
- else if (SrcReg == PPC::CR6LT || SrcReg == PPC::CR6GT ||
- SrcReg == PPC::CR6EQ || SrcReg == PPC::CR6UN)
- Reg = PPC::CR6;
- else if (SrcReg == PPC::CR7LT || SrcReg == PPC::CR7GT ||
- SrcReg == PPC::CR7EQ || SrcReg == PPC::CR7UN)
- Reg = PPC::CR7;
-
- assert(Reg != 0 && "Invalid CR bit register");
- return Reg;
-}
-
void PPCRegisterInfo::lowerCRBitSpilling(MachineBasicBlock::iterator II,
unsigned FrameIndex) const {
// Get the instruction.
// Get the instruction's basic block.
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
DebugLoc dl = MI.getDebugLoc();
- bool LP64 = Subtarget.isPPC64();
+ bool LP64 = TM.isPPC64();
const TargetRegisterClass *G8RC = &PPC::G8RCRegClass;
const TargetRegisterClass *GPRC = &PPC::GPRCRegClass;
// Get the instruction's basic block.
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
DebugLoc dl = MI.getDebugLoc();
- bool LP64 = Subtarget.isPPC64();
+ bool LP64 = TM.isPPC64();
const TargetRegisterClass *G8RC = &PPC::G8RCRegClass;
const TargetRegisterClass *GPRC = &PPC::GPRCRegClass;
// Get the instruction's basic block.
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
DebugLoc dl = MI.getDebugLoc();
// Get the instruction's basic block.
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
DebugLoc dl = MI.getDebugLoc();
bool
PPCRegisterInfo::hasReservedSpillSlot(const MachineFunction &MF,
unsigned Reg, int &FrameIdx) const {
-
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
// For the nonvolatile condition registers (CR2, CR3, CR4) in an SVR4
// ABI, return true to prevent allocating an additional frame slot.
// For 64-bit, the CR save area is at SP+8; the value of FrameIdx = 0
// is arbitrary and will be subsequently ignored. For 32-bit, we have
// previously created the stack slot if needed, so return its FrameIdx.
if (Subtarget.isSVR4ABI() && PPC::CR2 <= Reg && Reg <= PPC::CR4) {
- if (Subtarget.isPPC64())
+ if (TM.isPPC64())
FrameIdx = 0;
else {
const PPCFunctionInfo *FI = MF.getInfo<PPCFunctionInfo>();
MachineBasicBlock &MBB = *MI.getParent();
// Get the basic block's function.
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
// Get the instruction info.
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
// Get the frame info.
// The offset doesn't fit into a single register, scavenge one to build the
// offset in.
- bool is64Bit = Subtarget.isPPC64();
+ bool is64Bit = TM.isPPC64();
const TargetRegisterClass *G8RC = &PPC::G8RCRegClass;
const TargetRegisterClass *GPRC = &PPC::GPRCRegClass;
const TargetRegisterClass *RC = is64Bit ? G8RC : GPRC;
}
unsigned PPCRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
- const TargetFrameLowering *TFI = Subtarget.getFrameLowering();
+ const PPCFrameLowering *TFI = getFrameLowering(MF);
- if (!Subtarget.isPPC64())
+ if (!TM.isPPC64())
return TFI->hasFP(MF) ? PPC::R31 : PPC::R1;
else
return TFI->hasFP(MF) ? PPC::X31 : PPC::X1;
}
unsigned PPCRegisterInfo::getBaseRegister(const MachineFunction &MF) const {
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
if (!hasBasePointer(MF))
return getFrameRegister(MF);
- if (Subtarget.isPPC64())
+ if (TM.isPPC64())
return PPC::X30;
if (Subtarget.isSVR4ABI() &&
- MF.getTarget().getRelocationModel() == Reloc::PIC_)
+ TM.getRelocationModel() == Reloc::PIC_)
return PPC::R29;
return PPC::R30;
return needsStackRealignment(MF);
}
-bool PPCRegisterInfo::canRealignStack(const MachineFunction &MF) const {
- if (MF.getFunction()->hasFnAttribute("no-realign-stack"))
- return false;
-
- return true;
-}
-
-bool PPCRegisterInfo::needsStackRealignment(const MachineFunction &MF) const {
- const MachineFrameInfo *MFI = MF.getFrameInfo();
- const Function *F = MF.getFunction();
- unsigned StackAlign = Subtarget.getFrameLowering()->getStackAlignment();
- bool requiresRealignment = ((MFI->getMaxAlignment() > StackAlign) ||
- F->hasFnAttribute(Attribute::StackAlignment));
-
- return requiresRealignment && canRealignStack(MF);
-}
-
/// Returns true if the instruction's frame index
/// reference would be better served by a base register other than FP
/// or SP. Used by LocalStackFrameAllocation to determine which frame index
MachineBasicBlock &MBB = *MI->getParent();
MachineFunction &MF = *MBB.getParent();
-
- const PPCFrameLowering *PPCFI =
- static_cast<const PPCFrameLowering *>(Subtarget.getFrameLowering());
- unsigned StackEst =
- PPCFI->determineFrameLayout(MF, false, true);
+ const PPCFrameLowering *TFI = getFrameLowering(MF);
+ unsigned StackEst = TFI->determineFrameLayout(MF, false, true);
// If we likely don't need a stack frame, then we probably don't need a
// virtual base register either.
// The frame pointer will point to the end of the stack, so estimate the
// offset as the difference between the object offset and the FP location.
- return !isFrameOffsetLegal(MI, Offset);
+ return !isFrameOffsetLegal(MI, getBaseRegister(MF), Offset);
}
/// Insert defining instruction(s) for BaseReg to
materializeFrameBaseRegister(MachineBasicBlock *MBB,
unsigned BaseReg, int FrameIdx,
int64_t Offset) const {
- unsigned ADDriOpc = Subtarget.isPPC64() ? PPC::ADDI8 : PPC::ADDI;
+ unsigned ADDriOpc = TM.isPPC64() ? PPC::ADDI8 : PPC::ADDI;
MachineBasicBlock::iterator Ins = MBB->begin();
DebugLoc DL; // Defaults to "unknown"
DL = Ins->getDebugLoc();
const MachineFunction &MF = *MBB->getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
const MCInstrDesc &MCID = TII.get(ADDriOpc);
MachineRegisterInfo &MRI = MBB->getParent()->getRegInfo();
MachineBasicBlock &MBB = *MI.getParent();
MachineFunction &MF = *MBB.getParent();
+ const PPCSubtarget &Subtarget = MF.getSubtarget<PPCSubtarget>();
const TargetInstrInfo &TII = *Subtarget.getInstrInfo();
const MCInstrDesc &MCID = MI.getDesc();
MachineRegisterInfo &MRI = MF.getRegInfo();
}
bool PPCRegisterInfo::isFrameOffsetLegal(const MachineInstr *MI,
+ unsigned BaseReg,
int64_t Offset) const {
unsigned FIOperandNum = 0;
while (!MI->getOperand(FIOperandNum).isFI()) {
MI->getOpcode() == TargetOpcode::PATCHPOINT ||
(isInt<16>(Offset) && (!usesIXAddr(*MI) || (Offset & 3) == 0));
}
-
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