#include "MipsAnalyzeImmediate.h"
#include "MipsMachineFunction.h"
#include "MipsSEInstrInfo.h"
+#include "MipsSubtarget.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
namespace {
typedef MachineBasicBlock::iterator Iter;
+static std::pair<unsigned, unsigned> getMFHiLoOpc(unsigned Src) {
+ if (Mips::ACC64RegClass.contains(Src))
+ return std::make_pair((unsigned)Mips::PseudoMFHI,
+ (unsigned)Mips::PseudoMFLO);
+
+ if (Mips::ACC64DSPRegClass.contains(Src))
+ return std::make_pair((unsigned)Mips::MFHI_DSP, (unsigned)Mips::MFLO_DSP);
+
+ if (Mips::ACC128RegClass.contains(Src))
+ return std::make_pair((unsigned)Mips::PseudoMFHI64,
+ (unsigned)Mips::PseudoMFLO64);
+
+ return std::make_pair(0, 0);
+}
+
/// Helper class to expand pseudos.
class ExpandPseudo {
public:
void expandLoadCCond(MachineBasicBlock &MBB, Iter I);
void expandStoreCCond(MachineBasicBlock &MBB, Iter I);
void expandLoadACC(MachineBasicBlock &MBB, Iter I, unsigned RegSize);
- void expandStoreACC(MachineBasicBlock &MBB, Iter I, unsigned RegSize);
+ void expandStoreACC(MachineBasicBlock &MBB, Iter I, unsigned MFHiOpc,
+ unsigned MFLoOpc, unsigned RegSize);
bool expandCopy(MachineBasicBlock &MBB, Iter I);
- bool expandCopyACC(MachineBasicBlock &MBB, Iter I, unsigned Dst,
- unsigned Src, unsigned RegSize);
+ bool expandCopyACC(MachineBasicBlock &MBB, Iter I, unsigned MFHiOpc,
+ unsigned MFLoOpc);
+ bool expandBuildPairF64(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I, bool FP64) const;
+ bool expandExtractElementF64(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I, bool FP64) const;
MachineFunction &MF;
MachineRegisterInfo &MRI;
bool ExpandPseudo::expandInstr(MachineBasicBlock &MBB, Iter I) {
switch(I->getOpcode()) {
case Mips::LOAD_CCOND_DSP:
- case Mips::LOAD_CCOND_DSP_P8:
expandLoadCCond(MBB, I);
break;
case Mips::STORE_CCOND_DSP:
- case Mips::STORE_CCOND_DSP_P8:
expandStoreCCond(MBB, I);
break;
case Mips::LOAD_ACC64:
- case Mips::LOAD_ACC64_P8:
case Mips::LOAD_ACC64DSP:
- case Mips::LOAD_ACC64DSP_P8:
expandLoadACC(MBB, I, 4);
break;
case Mips::LOAD_ACC128:
- case Mips::LOAD_ACC128_P8:
expandLoadACC(MBB, I, 8);
break;
case Mips::STORE_ACC64:
- case Mips::STORE_ACC64_P8:
+ expandStoreACC(MBB, I, Mips::PseudoMFHI, Mips::PseudoMFLO, 4);
+ break;
case Mips::STORE_ACC64DSP:
- case Mips::STORE_ACC64DSP_P8:
- expandStoreACC(MBB, I, 4);
+ expandStoreACC(MBB, I, Mips::MFHI_DSP, Mips::MFLO_DSP, 4);
break;
case Mips::STORE_ACC128:
- case Mips::STORE_ACC128_P8:
- expandStoreACC(MBB, I, 8);
+ expandStoreACC(MBB, I, Mips::PseudoMFHI64, Mips::PseudoMFLO64, 8);
break;
+ case Mips::BuildPairF64:
+ if (expandBuildPairF64(MBB, I, false))
+ MBB.erase(I);
+ return false;
+ case Mips::BuildPairF64_64:
+ if (expandBuildPairF64(MBB, I, true))
+ MBB.erase(I);
+ return false;
+ case Mips::ExtractElementF64:
+ if (expandExtractElementF64(MBB, I, false))
+ MBB.erase(I);
+ return false;
+ case Mips::ExtractElementF64_64:
+ if (expandExtractElementF64(MBB, I, true))
+ MBB.erase(I);
+ return false;
case TargetOpcode::COPY:
if (!expandCopy(MBB, I))
return false;
assert(I->getOperand(0).isReg() && I->getOperand(1).isFI());
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
const TargetRegisterClass *RC = RegInfo.intRegClass(4);
unsigned VR = MRI.createVirtualRegister(RC);
assert(I->getOperand(0).isReg() && I->getOperand(1).isFI());
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
const TargetRegisterClass *RC = RegInfo.intRegClass(4);
unsigned VR = MRI.createVirtualRegister(RC);
assert(I->getOperand(0).isReg() && I->getOperand(1).isFI());
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
const TargetRegisterClass *RC = RegInfo.intRegClass(RegSize);
unsigned VR0 = MRI.createVirtualRegister(RC);
}
void ExpandPseudo::expandStoreACC(MachineBasicBlock &MBB, Iter I,
+ unsigned MFHiOpc, unsigned MFLoOpc,
unsigned RegSize) {
- // copy $vr0, lo
+ // mflo $vr0, src
// store $vr0, FI
- // copy $vr1, hi
+ // mfhi $vr1, src
// store $vr1, FI + 4
assert(I->getOperand(0).isReg() && I->getOperand(1).isFI());
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
const TargetRegisterClass *RC = RegInfo.intRegClass(RegSize);
unsigned VR0 = MRI.createVirtualRegister(RC);
unsigned VR1 = MRI.createVirtualRegister(RC);
unsigned Src = I->getOperand(0).getReg(), FI = I->getOperand(1).getIndex();
unsigned SrcKill = getKillRegState(I->getOperand(0).isKill());
- unsigned Lo = RegInfo.getSubReg(Src, Mips::sub_lo);
- unsigned Hi = RegInfo.getSubReg(Src, Mips::sub_hi);
DebugLoc DL = I->getDebugLoc();
- BuildMI(MBB, I, DL, TII.get(TargetOpcode::COPY), VR0).addReg(Lo, SrcKill);
+ BuildMI(MBB, I, DL, TII.get(MFLoOpc), VR0).addReg(Src);
TII.storeRegToStack(MBB, I, VR0, true, FI, RC, &RegInfo, 0);
- BuildMI(MBB, I, DL, TII.get(TargetOpcode::COPY), VR1).addReg(Hi, SrcKill);
+ BuildMI(MBB, I, DL, TII.get(MFHiOpc), VR1).addReg(Src, SrcKill);
TII.storeRegToStack(MBB, I, VR1, true, FI, RC, &RegInfo, RegSize);
}
bool ExpandPseudo::expandCopy(MachineBasicBlock &MBB, Iter I) {
- unsigned Dst = I->getOperand(0).getReg(), Src = I->getOperand(1).getReg();
+ unsigned Src = I->getOperand(1).getReg();
+ std::pair<unsigned, unsigned> Opcodes = getMFHiLoOpc(Src);
- if (Mips::ACC64DSPRegClass.contains(Dst, Src))
- return expandCopyACC(MBB, I, Dst, Src, 4);
-
- if (Mips::ACC128RegClass.contains(Dst, Src))
- return expandCopyACC(MBB, I, Dst, Src, 8);
+ if (!Opcodes.first)
+ return false;
- return false;
+ return expandCopyACC(MBB, I, Opcodes.first, Opcodes.second);
}
-bool ExpandPseudo::expandCopyACC(MachineBasicBlock &MBB, Iter I, unsigned Dst,
- unsigned Src, unsigned RegSize) {
- // copy $vr0, src_lo
+bool ExpandPseudo::expandCopyACC(MachineBasicBlock &MBB, Iter I,
+ unsigned MFHiOpc, unsigned MFLoOpc) {
+ // mflo $vr0, src
// copy dst_lo, $vr0
- // copy $vr1, src_hi
+ // mfhi $vr1, src
// copy dst_hi, $vr1
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
- const TargetRegisterClass *RC = RegInfo.intRegClass(RegSize);
+ unsigned Dst = I->getOperand(0).getReg(), Src = I->getOperand(1).getReg();
+ unsigned VRegSize = RegInfo.getMinimalPhysRegClass(Dst)->getSize() / 2;
+ const TargetRegisterClass *RC = RegInfo.intRegClass(VRegSize);
unsigned VR0 = MRI.createVirtualRegister(RC);
unsigned VR1 = MRI.createVirtualRegister(RC);
unsigned SrcKill = getKillRegState(I->getOperand(1).isKill());
unsigned DstLo = RegInfo.getSubReg(Dst, Mips::sub_lo);
unsigned DstHi = RegInfo.getSubReg(Dst, Mips::sub_hi);
- unsigned SrcLo = RegInfo.getSubReg(Src, Mips::sub_lo);
- unsigned SrcHi = RegInfo.getSubReg(Src, Mips::sub_hi);
DebugLoc DL = I->getDebugLoc();
- BuildMI(MBB, I, DL, TII.get(TargetOpcode::COPY), VR0).addReg(SrcLo, SrcKill);
+ BuildMI(MBB, I, DL, TII.get(MFLoOpc), VR0).addReg(Src);
BuildMI(MBB, I, DL, TII.get(TargetOpcode::COPY), DstLo)
.addReg(VR0, RegState::Kill);
- BuildMI(MBB, I, DL, TII.get(TargetOpcode::COPY), VR1).addReg(SrcHi, SrcKill);
+ BuildMI(MBB, I, DL, TII.get(MFHiOpc), VR1).addReg(Src, SrcKill);
BuildMI(MBB, I, DL, TII.get(TargetOpcode::COPY), DstHi)
.addReg(VR1, RegState::Kill);
return true;
}
+/// This method expands the same instruction that MipsSEInstrInfo::
+/// expandBuildPairF64 does, for the case when ABI is fpxx and mthc1 is not
+/// available and the case where the ABI is FP64A. It is implemented here
+/// because frame indexes are eliminated before MipsSEInstrInfo::
+/// expandBuildPairF64 is called.
+bool ExpandPseudo::expandBuildPairF64(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ bool FP64) const {
+ // For fpxx and when mthc1 is not available, use:
+ // spill + reload via ldc1
+ //
+ // The case where dmtc1 is available doesn't need to be handled here
+ // because it never creates a BuildPairF64 node.
+ //
+ // The FP64A ABI (fp64 with nooddspreg) must also use a spill/reload sequence
+ // for odd-numbered double precision values (because the lower 32-bits is
+ // transferred with mtc1 which is redirected to the upper half of the even
+ // register). Unfortunately, we have to make this decision before register
+ // allocation so for now we use a spill/reload sequence for all
+ // double-precision values in regardless of being an odd/even register.
+
+ const TargetMachine &TM = MF.getTarget();
+ const MipsSubtarget &Subtarget = TM.getSubtarget<MipsSubtarget>();
+ if ((Subtarget.isABI_FPXX() && !Subtarget.hasMTHC1()) ||
+ (FP64 && !Subtarget.useOddSPReg())) {
+ const MipsSEInstrInfo &TII = *static_cast<const MipsSEInstrInfo *>(
+ TM.getSubtargetImpl()->getInstrInfo());
+ const MipsRegisterInfo &TRI = *static_cast<const MipsRegisterInfo *>(
+ TM.getSubtargetImpl()->getRegisterInfo());
+
+ unsigned DstReg = I->getOperand(0).getReg();
+ unsigned LoReg = I->getOperand(1).getReg();
+ unsigned HiReg = I->getOperand(2).getReg();
+
+ // It should be impossible to have FGR64 on MIPS-II or MIPS32r1 (which are
+ // the cases where mthc1 is not available). 64-bit architectures and
+ // MIPS32r2 or later can use FGR64 though.
+ assert(Subtarget.isGP64bit() || Subtarget.hasMTHC1() ||
+ !Subtarget.isFP64bit());
+
+ const TargetRegisterClass *RC = &Mips::GPR32RegClass;
+ const TargetRegisterClass *RC2 =
+ FP64 ? &Mips::FGR64RegClass : &Mips::AFGR64RegClass;
+
+ // We re-use the same spill slot each time so that the stack frame doesn't
+ // grow too much in functions with a large number of moves.
+ int FI = MF.getInfo<MipsFunctionInfo>()->getMoveF64ViaSpillFI(RC2);
+ TII.storeRegToStack(MBB, I, LoReg, I->getOperand(1).isKill(), FI, RC, &TRI,
+ 0);
+ TII.storeRegToStack(MBB, I, HiReg, I->getOperand(2).isKill(), FI, RC, &TRI,
+ 4);
+ TII.loadRegFromStack(MBB, I, DstReg, FI, RC2, &TRI, 0);
+ return true;
+ }
+
+ return false;
+}
+
+/// This method expands the same instruction that MipsSEInstrInfo::
+/// expandExtractElementF64 does, for the case when ABI is fpxx and mfhc1 is not
+/// available and the case where the ABI is FP64A. It is implemented here
+/// because frame indexes are eliminated before MipsSEInstrInfo::
+/// expandExtractElementF64 is called.
+bool ExpandPseudo::expandExtractElementF64(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I,
+ bool FP64) const {
+ // For fpxx and when mfhc1 is not available, use:
+ // spill + reload via ldc1
+ //
+ // The case where dmfc1 is available doesn't need to be handled here
+ // because it never creates a ExtractElementF64 node.
+ //
+ // The FP64A ABI (fp64 with nooddspreg) must also use a spill/reload sequence
+ // for odd-numbered double precision values (because the lower 32-bits is
+ // transferred with mfc1 which is redirected to the upper half of the even
+ // register). Unfortunately, we have to make this decision before register
+ // allocation so for now we use a spill/reload sequence for all
+ // double-precision values in regardless of being an odd/even register.
+
+ const TargetMachine &TM = MF.getTarget();
+ const MipsSubtarget &Subtarget = TM.getSubtarget<MipsSubtarget>();
+ if ((Subtarget.isABI_FPXX() && !Subtarget.hasMTHC1()) ||
+ (FP64 && !Subtarget.useOddSPReg())) {
+ const MipsSEInstrInfo &TII = *static_cast<const MipsSEInstrInfo *>(
+ TM.getSubtargetImpl()->getInstrInfo());
+ const MipsRegisterInfo &TRI = *static_cast<const MipsRegisterInfo *>(
+ TM.getSubtargetImpl()->getRegisterInfo());
+
+ unsigned DstReg = I->getOperand(0).getReg();
+ unsigned SrcReg = I->getOperand(1).getReg();
+ unsigned N = I->getOperand(2).getImm();
+
+ // It should be impossible to have FGR64 on MIPS-II or MIPS32r1 (which are
+ // the cases where mfhc1 is not available). 64-bit architectures and
+ // MIPS32r2 or later can use FGR64 though.
+ assert(Subtarget.isGP64bit() || Subtarget.hasMTHC1() ||
+ !Subtarget.isFP64bit());
+
+ const TargetRegisterClass *RC =
+ FP64 ? &Mips::FGR64RegClass : &Mips::AFGR64RegClass;
+ const TargetRegisterClass *RC2 = &Mips::GPR32RegClass;
+
+ // We re-use the same spill slot each time so that the stack frame doesn't
+ // grow too much in functions with a large number of moves.
+ int FI = MF.getInfo<MipsFunctionInfo>()->getMoveF64ViaSpillFI(RC);
+ TII.storeRegToStack(MBB, I, SrcReg, I->getOperand(1).isKill(), FI, RC, &TRI,
+ 0);
+ TII.loadRegFromStack(MBB, I, DstReg, FI, RC2, &TRI, N * 4);
+ return true;
+ }
+
+ return false;
+}
+
+MipsSEFrameLowering::MipsSEFrameLowering(const MipsSubtarget &STI)
+ : MipsFrameLowering(STI, STI.stackAlignment()) {}
+
unsigned MipsSEFrameLowering::ehDataReg(unsigned I) const {
static const unsigned EhDataReg[] = {
Mips::A0, Mips::A1, Mips::A2, Mips::A3
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
MachineBasicBlock::iterator MBBI = MBB.begin();
DebugLoc dl = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
TII.adjustStackPtr(SP, -StackSize, MBB, MBBI);
// emit ".cfi_def_cfa_offset StackSize"
- MCSymbol *AdjustSPLabel = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, dl,
- TII.get(TargetOpcode::PROLOG_LABEL)).addSym(AdjustSPLabel);
- MMI.addFrameInst(
- MCCFIInstruction::createDefCfaOffset(AdjustSPLabel, -StackSize));
+ unsigned CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createDefCfaOffset(nullptr, -StackSize));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
// Iterate over list of callee-saved registers and emit .cfi_offset
// directives.
- MCSymbol *CSLabel = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, dl,
- TII.get(TargetOpcode::PROLOG_LABEL)).addSym(CSLabel);
-
for (std::vector<CalleeSavedInfo>::const_iterator I = CSI.begin(),
E = CSI.end(); I != E; ++I) {
int64_t Offset = MFI->getObjectOffset(I->getFrameIdx());
// one for each of the paired single precision registers.
if (Mips::AFGR64RegClass.contains(Reg)) {
unsigned Reg0 =
- MRI->getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_fpeven), true);
+ MRI->getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_lo), true);
unsigned Reg1 =
- MRI->getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_fpodd), true);
+ MRI->getDwarfRegNum(RegInfo.getSubReg(Reg, Mips::sub_hi), true);
+
+ if (!STI.isLittle())
+ std::swap(Reg0, Reg1);
+
+ unsigned CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createOffset(nullptr, Reg0, Offset));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
+
+ CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createOffset(nullptr, Reg1, Offset + 4));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
+ } else if (Mips::FGR64RegClass.contains(Reg)) {
+ unsigned Reg0 = MRI->getDwarfRegNum(Reg, true);
+ unsigned Reg1 = MRI->getDwarfRegNum(Reg, true) + 1;
if (!STI.isLittle())
std::swap(Reg0, Reg1);
- MMI.addFrameInst(
- MCCFIInstruction::createOffset(CSLabel, Reg0, Offset));
- MMI.addFrameInst(
- MCCFIInstruction::createOffset(CSLabel, Reg1, Offset + 4));
+ unsigned CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createOffset(nullptr, Reg0, Offset));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
+
+ CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createOffset(nullptr, Reg1, Offset + 4));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
} else {
// Reg is either in GPR32 or FGR32.
- MMI.addFrameInst(MCCFIInstruction::createOffset(
- CSLabel, MRI->getDwarfRegNum(Reg, 1), Offset));
+ unsigned CFIIndex = MMI.addFrameInst(MCCFIInstruction::createOffset(
+ nullptr, MRI->getDwarfRegNum(Reg, 1), Offset));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
}
}
}
}
// Emit .cfi_offset directives for eh data registers.
- MCSymbol *CSLabel2 = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, dl,
- TII.get(TargetOpcode::PROLOG_LABEL)).addSym(CSLabel2);
for (int I = 0; I < 4; ++I) {
int64_t Offset = MFI->getObjectOffset(MipsFI->getEhDataRegFI(I));
unsigned Reg = MRI->getDwarfRegNum(ehDataReg(I), true);
- MMI.addFrameInst(MCCFIInstruction::createOffset(CSLabel2, Reg, Offset));
+ unsigned CFIIndex = MMI.addFrameInst(
+ MCCFIInstruction::createOffset(nullptr, Reg, Offset));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
}
}
// if framepointer enabled, set it to point to the stack pointer.
if (hasFP(MF)) {
// Insert instruction "move $fp, $sp" at this location.
- BuildMI(MBB, MBBI, dl, TII.get(ADDu), FP).addReg(SP).addReg(ZERO);
+ BuildMI(MBB, MBBI, dl, TII.get(ADDu), FP).addReg(SP).addReg(ZERO)
+ .setMIFlag(MachineInstr::FrameSetup);
// emit ".cfi_def_cfa_register $fp"
- MCSymbol *SetFPLabel = MMI.getContext().CreateTempSymbol();
- BuildMI(MBB, MBBI, dl,
- TII.get(TargetOpcode::PROLOG_LABEL)).addSym(SetFPLabel);
- MMI.addFrameInst(MCCFIInstruction::createDefCfaRegister(
- SetFPLabel, MRI->getDwarfRegNum(FP, true)));
+ unsigned CFIIndex = MMI.addFrameInst(MCCFIInstruction::createDefCfaRegister(
+ nullptr, MRI->getDwarfRegNum(FP, true)));
+ BuildMI(MBB, MBBI, dl, TII.get(TargetOpcode::CFI_INSTRUCTION))
+ .addCFIIndex(CFIIndex);
}
}
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
- const MipsRegisterInfo &RegInfo =
- *static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const MipsRegisterInfo &RegInfo = *static_cast<const MipsRegisterInfo *>(
+ MF.getSubtarget().getRegisterInfo());
DebugLoc dl = MBBI->getDebugLoc();
unsigned SP = STI.isABI_N64() ? Mips::SP_64 : Mips::SP;
const TargetRegisterInfo *TRI) const {
MachineFunction *MF = MBB.getParent();
MachineBasicBlock *EntryBlock = MF->begin();
- const TargetInstrInfo &TII = *MF->getTarget().getInstrInfo();
+ const TargetInstrInfo &TII = *MF->getSubtarget().getInstrInfo();
for (unsigned i = 0, e = CSI.size(); i != e; ++i) {
// Add the callee-saved register as live-in. Do not add if the register is
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
const MipsSEInstrInfo &TII =
- *static_cast<const MipsSEInstrInfo*>(MF.getTarget().getInstrInfo());
+ *static_cast<const MipsSEInstrInfo *>(MF.getSubtarget().getInstrInfo());
if (!hasReservedCallFrame(MF)) {
int64_t Amount = I->getOperand(0).getImm();
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