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Revert accidental commit.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160598 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2012-07-21 02:20:33 +00:00
parent b7dd9fc678
commit fef904d0e8
8 changed files with 48 additions and 291 deletions
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6
lib/Target/Mips/Mips16InstrFormats.td
View File

@ -529,16 +529,14 @@ class FEXT_RRI16<bits<5> _op, dag outs, dag ins, string asmstr,
list<dag> pattern, InstrItinClass itin>:
MipsInst16_EXTEND<outs, ins, asmstr, pattern, itin, FrmEXT_RRI16>
{
bits<5> op;
bits<16> imm16;
bits<3> rx;
bits<3> ry;
let op=_op;
let Inst{26-21} = imm16{10-5};
let Inst{20-16} = imm16{15-11};
let Inst{15-11} = op;
let Inst{15-11} = _op;
let Inst{10-8} = rx;
let Inst{7-5} = ry;
let Inst{4-0} = imm16{4-0};

239
lib/Target/Mips/Mips16InstrInfo.td
View File

@ -11,209 +11,35 @@
//
//===----------------------------------------------------------------------===//
def uimm5 : Operand<i8> {
let DecoderMethod= "DecodeSimm16";
}
//
// RRR-type instruction format
//
class FRRR16_ins<bits<2> _f, string asmstr, InstrItinClass itin> :
FRRR16<_f, (outs CPU16Regs:$rz), (ins CPU16Regs:$rx, CPU16Regs:$ry),
!strconcat(asmstr, "\t$rz, $rx, $ry"), [], itin>;
//
// I8_MOV32R instruction format (used only by MOV32R instruction)
//
class FI8_MOV32R16_ins<string asmstr, InstrItinClass itin>:
FI8_MOV32R16<(outs CPURegs:$r32), (ins CPU16Regs:$rz),
!strconcat(asmstr, "\t$r32, $rz"), [], itin>;
//
// EXT-RI instruction format
//
class FEXT_RI16_ins_base<bits<5> _op, string asmstr, string asmstr2,
InstrItinClass itin>:
FEXT_RI16<_op, (outs CPU16Regs:$rx), (ins simm16:$imm),
!strconcat(asmstr, asmstr2), [], itin>;
class FEXT_RI16_ins<bits<5> _op, string asmstr,
InstrItinClass itin>:
FEXT_RI16_ins_base<_op, asmstr, "\t$rx, $imm", itin>;
class FEXT_RI16_PC_ins<bits<5> _op, string asmstr, InstrItinClass itin>:
FEXT_RI16_ins_base<_op, asmstr, "\t$rx, $$pc, $imm", itin>;
//
// RR-type instruction format
//
let rx=0 in
class FRR16_JALRC_RA_only_ins<bits<1> nd_, bits<1> l_,
string asmstr, InstrItinClass itin>:
FRR16_JALRC<nd_, l_, 1, (outs), (ins), !strconcat(asmstr, "\t $$ra"),
[], itin> ;
//
// EXT-RRI instruction format
//
class FEXT_RRI16_mem_ins<bits<5> op, string asmstr, Operand MemOpnd,
InstrItinClass itin>:
FEXT_RRI16<op, (outs CPU16Regs:$ry), (ins MemOpnd:$addr),
!strconcat(asmstr, "\t$ry, $addr"), [], itin>;
//
// EXT-SHIFT instruction format
//
class FEXT_SHIFT16_ins<bits<2> _f, string asmstr, InstrItinClass itin>:
FEXT_SHIFT16<_f, (outs CPU16Regs:$rx), (ins CPU16Regs:$ry, uimm5:$sa),
!strconcat(asmstr, "\t$rx, $ry, $sa"), [], itin>;
//
// Address operand
def mem16 : Operand<i32> {
let PrintMethod = "printMemOperand";
let MIOperandInfo = (ops CPU16Regs, simm16);
let EncoderMethod = "getMemEncoding";
}
//
// Format: ADDIU rx, pc, immediate MIPS16e
// Purpose: Add Immediate Unsigned Word (3-Operand, PC-Relative, Extended)
// To add a constant to the program counter.
//
class AddiuRxPcImmX16_base : FEXT_RI16_PC_ins<0b00001, "addiu", IIAlu>;
def AddiuRxPcImmX16 : AddiuRxPcImmX16_base;
//
// Format: ADDU rz, rx, ry MIPS16e
// Purpose: Add Unsigned Word (3-Operand)
// To add 32-bit integers.
//
class AdduRxRyRz16_base: FRRR16_ins<01, "addu", IIAlu>;
def AdduRxRyRz16: AdduRxRyRz16_base;
//
// Format: JR ra MIPS16e
// Purpose: Jump Register Through Register ra
// To execute a branch to the instruction address in the return
// address register.
//
def JrRa16: FRR16_JALRC_RA_only_ins<0, 0, "jr", IIAlu>;
//
// Format: LI rx, immediate MIPS16e
// Purpose: Load Immediate (Extended)
// To load a constant into a GPR.
//
def LiRxImmX16: FEXT_RI16_ins<0b01101, "li", IIAlu>;
//
// Format: LW ry, offset(rx) MIPS16e
// Purpose: Load Word (Extended)
// To load a word from memory as a signed value.
//
class LwRxRyOffMemX16_base: FEXT_RRI16_mem_ins<0b10011, "lw", mem16, IIAlu>;
def LwRxRyOffMemX16: LwRxRyOffMemX16_base;
//
// Format: MOVE r32, rz MIPS16e
// Purpose: Move
// To move the contents of a GPR to a GPR.
//
def Mov32R16: FI8_MOV32R16_ins<"move", IIAlu>;
//
// Format: RESTORE {ra,}{s0/s1/s0-1,}{framesize}
// (All args are optional) MIPS16e
// Purpose: Restore Registers and Deallocate Stack Frame
// To deallocate a stack frame before exit from a subroutine,
// restoring return address and static registers, and adjusting
// stack
//
// fixed form for restoring RA and the frame
// for direct object emitter, encoding needs to be adjusted for the
// frame size
//
let ra=1, s=0,s0=0,s1=0 in
def RestoreRaF16:
FI8_SVRS16<0b1, (outs), (ins uimm16:$frame_size),
"restore \t$$ra, $frame_size", [], IILoad >;
//
// Format: SAVE {ra,}{s0/s1/s0-1,}{framesize} (All arguments are optional)
// MIPS16e
// Purpose: Save Registers and Set Up Stack Frame
// To set up a stack frame on entry to a subroutine,
// saving return address and static registers, and adjusting stack
//
let ra=1, s=1,s0=0,s1=0 in
def SaveRaF16:
FI8_SVRS16<0b1, (outs), (ins uimm16:$frame_size),
"save \t$$ra, $frame_size", [], IILoad >;
//
// Format: SLL rx, ry, sa MIPS16e
// Purpose: Shift Word Left Logical (Extended)
// To execute a left-shift of a word by a fixed number of bits—0 to 31 bits.
//
def SllX16: FEXT_SHIFT16_ins<0b00, "sll", IIAlu>;
//
// Format: SW ry, offset(rx) MIPS16e
// Purpose: Store Word (Extended)
// To store a word to memory.
//
class SwRxRyOffMemX16_base: FEXT_RRI16_mem_ins<0b11011, "sw", mem16, IIAlu>;
def SwRxRyOffMemX16: SwRxRyOffMemX16_base;
class Mips16Pat<dag pattern, dag result> : Pat<pattern, result> {
let Predicates = [InMips16Mode];
}
class ArithLogicR16Defs<SDNode OpNode, bit isComm = 0> {
dag OutOperandList = (outs CPU16Regs:$rz);
dag InOperandList = (ins CPU16Regs:$rx, CPU16Regs:$ry);
list<dag> Pattern = [(set CPU16Regs:$rz,
(OpNode CPU16Regs:$rx, CPU16Regs:$ry))];
// Mips16 pseudos
let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1,
hasExtraSrcRegAllocReq = 1 in
def RetRA16 : MipsPseudo16<(outs), (ins), "", [(MipsRet)]>;
def LI16E : FEXT_RI16<0b01101, (outs CPU16Regs:$rx),
(ins uimm16:$amt),
!strconcat("li", "\t$rx, $amt"),
[(set CPU16Regs:$rx, immZExt16:$amt )],IILoad>;
let isReturn=1, isTerminator=1, hasDelaySlot=1, isCodeGenOnly=1,
isBarrier=1, hasCtrlDep=1, rx=0 in
def RET16 : FRR16_JALRC
<0,0,0, (outs), (ins CPURAReg:$target), "jr\t$target", [], IIBranch>;
// As stack alignment is always done with addiu, we need a 16-bit immediate
let Defs = [SP], Uses = [SP] in {
def ADJCALLSTACKDOWN16 : MipsPseudo16<(outs), (ins uimm16:$amt),
"!ADJCALLSTACKDOWN $amt",
[(callseq_start timm:$amt)]>;
def ADJCALLSTACKUP16 : MipsPseudo16<(outs), (ins uimm16:$amt1, uimm16:$amt2),
"!ADJCALLSTACKUP $amt1",
[(callseq_end timm:$amt1, timm:$amt2)]>;
}
multiclass ArithLogicR16_base {
def _add: AdduRxRyRz16_base, ArithLogicR16Defs<add, 1>;
}
defm ArithLogicR16_patt : ArithLogicR16_base;
class LoadM16Defs<PatFrag OpNode, Operand _MemOpnd, bit Pseudo=0> {
bit isPseudo = Pseudo;
Operand MemOpnd = _MemOpnd;
dag OutOperandList = (outs CPU16Regs:$ry);
dag InOperandList = (ins MemOpnd:$addr);
list<dag> Pattern = [(set CPU16Regs:$ry, (OpNode addr:$addr))];
}
multiclass LoadM16_base {
def _LwRxRyOffMemX16: LwRxRyOffMemX16_base, LoadM16Defs<load_a, mem16>;
}
defm LoadM16: LoadM16_base;
class StoreM16Defs<PatFrag OpNode, Operand _MemOpnd, bit Pseudo=0> {
bit isPseudo = Pseudo;
Operand MemOpnd = _MemOpnd;
dag OutOperandList = (outs );
dag InOperandList = (ins CPU16Regs:$ry, MemOpnd:$addr);
list<dag> Pattern = [(OpNode CPU16Regs:$ry, addr:$addr)];
}
multiclass StoreM16_base {
def _SwRxRyOffMemX16: SwRxRyOffMemX16_base, StoreM16Defs<store_a, mem16>;
}
defm StoreM16: StoreM16_base;
// Jump and Link (Call)
let isCall=1, hasDelaySlot=1 in
@ -221,23 +47,6 @@ def JumpLinkReg16:
FRR16_JALRC<0, 0, 0, (outs), (ins CPU16Regs:$rs),
"jalr \t$rs", [(MipsJmpLink CPU16Regs:$rs)], IIBranch>;
// Mips16 pseudos
let isReturn=1, isTerminator=1, hasDelaySlot=1, isBarrier=1, hasCtrlDep=1,
hasExtraSrcRegAllocReq = 1 in
def RetRA16 : MipsPseudo16<(outs), (ins), "", [(MipsRet)]>;
// As stack alignment is always done with addiu, we need a 16-bit immediate
// This is basically deprecated code but needs to be there for things
// to work.
let Defs = [SP], Uses = [SP] in {
def ADJCALLSTACKDOWN16 : MipsPseudo16<(outs), (ins uimm16:$amt),
";",
[(callseq_start timm:$amt)]>;
def ADJCALLSTACKUP16 : MipsPseudo16<(outs), (ins uimm16:$amt1, uimm16:$amt2),
";",
[(callseq_end timm:$amt1, timm:$amt2)]>;
}
// Small immediates
def : Mips16Pat<(i32 immZExt16:$in), (LiRxImmX16 immZExt16:$in)>;
def : Mips16Pat<(MipsLo tglobaladdr:$in), (LiRxImmX16 tglobaladdr:$in)>;
def : Mips16Pat<(i32 immZExt16:$in), (LI16E immZExt16:$in)>;

21
lib/Target/Mips/MipsFrameLowering.cpp
View File

@ -114,7 +114,7 @@ void MipsFrameLowering::emitPrologue(MachineFunction &MF) const {
unsigned StackAlign = getStackAlignment();
uint64_t StackSize = RoundUpToAlignment(MFI->getStackSize(), StackAlign);
if (MipsFI->globalBaseRegSet())
if (MipsFI->globalBaseRegSet())
StackSize += MFI->getObjectOffset(MipsFI->getGlobalRegFI()) + StackAlign;
else
StackSize += RoundUpToAlignment(MipsFI->getMaxCallFrameSize(), StackAlign);
@ -130,13 +130,8 @@ void MipsFrameLowering::emitPrologue(MachineFunction &MF) const {
MachineLocation DstML, SrcML;
// Adjust stack.
if (isInt<16>(-StackSize)) {// addi sp, sp, (-stacksize)
if (STI.inMips16Mode())
BuildMI(MBB, MBBI, dl,
TII.get(Mips::SaveRaF16)).addImm(StackSize); // cleanup
else
BuildMI(MBB, MBBI, dl, TII.get(ADDiu), SP).addReg(SP).addImm(-StackSize);
}
if (isInt<16>(-StackSize)) // addi sp, sp, (-stacksize)
BuildMI(MBB, MBBI, dl, TII.get(ADDiu), SP).addReg(SP).addImm(-StackSize);
else { // Expand immediate that doesn't fit in 16-bit.
unsigned ATReg = STI.isABI_N64() ? Mips::AT_64 : Mips::AT;
@ -242,14 +237,8 @@ void MipsFrameLowering::emitEpilogue(MachineFunction &MF,
return;
// Adjust stack.
if (isInt<16>(StackSize)) { // addi sp, sp, (-stacksize)
if (STI.inMips16Mode())
// assumes stacksize multiple of 8
BuildMI(MBB, MBBI, dl,
TII.get(Mips::RestoreRaF16)).addImm(StackSize);
else
BuildMI(MBB, MBBI, dl, TII.get(ADDiu), SP).addReg(SP).addImm(StackSize);
}
if (isInt<16>(StackSize)) // addi sp, sp, (-stacksize)
BuildMI(MBB, MBBI, dl, TII.get(ADDiu), SP).addReg(SP).addImm(StackSize);
else { // Expand immediate that doesn't fit in 16-bit.
unsigned ATReg = STI.isABI_N64() ? Mips::AT_64 : Mips::AT;

34
lib/Target/Mips/MipsISelDAGToDAG.cpp
View File

@ -128,21 +128,18 @@ void MipsDAGToDAGISel::InitGlobalBaseReg(MachineFunction &MF) {
const MipsInstrInfo *MII = TM.getInstrInfo();
const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
DebugLoc DL = I != MBB.end() ? I->getDebugLoc() : DebugLoc();
unsigned V0, V1, V2, GlobalBaseReg = MipsFI->getGlobalBaseReg();
int FI = 0;
unsigned V0, V1, GlobalBaseReg = MipsFI->getGlobalBaseReg();
int FI = 0;
FI= MipsFI->initGlobalRegFI();
if (!Subtarget.inMips16Mode())
FI= MipsFI->initGlobalRegFI();
const TargetRegisterClass *RC = Subtarget.isABI_N64() ?
(const TargetRegisterClass*)&Mips::CPU64RegsRegClass :
(const TargetRegisterClass*)&Mips::CPURegsRegClass;
if (Subtarget.inMips16Mode())
RC=(const TargetRegisterClass*)&Mips::CPU16RegsRegClass;
V0 = RegInfo.createVirtualRegister(RC);
V1 = RegInfo.createVirtualRegister(RC);
V2 = RegInfo.createVirtualRegister(RC);
if (Subtarget.isABI_N64()) {
MF.getRegInfo().addLiveIn(Mips::T9_64);
@ -163,21 +160,6 @@ void MipsDAGToDAGISel::InitGlobalBaseReg(MachineFunction &MF) {
return;
}
if (Subtarget.inMips16Mode()) {
BuildMI(MBB, I, DL, TII.get(Mips::LiRxImmX16), V0)
.addExternalSymbol("_gp_disp", MipsII::MO_ABS_HI);
BuildMI(MBB, I, DL, TII.get(Mips::AddiuRxPcImmX16),
V1)
.addExternalSymbol("_gp_disp", MipsII::MO_ABS_LO);
BuildMI(MBB, I, DL, TII.get(Mips::SllX16),
V2 ).addReg(V0).addImm(16);
BuildMI(MBB, I, DL, TII.get(Mips::AdduRxRyRz16), GlobalBaseReg)
.addReg(V1).addReg(V2);
return;
}
if (MF.getTarget().getRelocationModel() == Reloc::Static) {
// Set global register to __gnu_local_gp.
//
@ -187,6 +169,8 @@ void MipsDAGToDAGISel::InitGlobalBaseReg(MachineFunction &MF) {
.addExternalSymbol("__gnu_local_gp", MipsII::MO_ABS_HI);
BuildMI(MBB, I, DL, TII.get(Mips::ADDiu), GlobalBaseReg).addReg(V0)
.addExternalSymbol("__gnu_local_gp", MipsII::MO_ABS_LO);
MII->storeRegToStackSlot(MBB, I, GlobalBaseReg, false, FI, RC,
TargetRegInfo);
return;
}
@ -210,10 +194,8 @@ void MipsDAGToDAGISel::InitGlobalBaseReg(MachineFunction &MF) {
assert(Subtarget.isABI_O32());
//if (Subtarget.inMips16Mode())
// return; // no need to load GP. It can be calculated anywhere
if (Subtarget.inMips16Mode())
return; // no need to load GP. It can be calculated anywhere
// For O32 ABI, the following instruction sequence is emitted to initialize

5
lib/Target/Mips/MipsISelLowering.cpp
View File

@ -2645,7 +2645,6 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
SmallVector<ISD::InputArg, 32> &Ins = CLI.Ins;
SDValue InChain = CLI.Chain;
SDValue Callee = CLI.Callee;
SDValue CalleeSave = CLI.Callee;
bool &isTailCall = CLI.IsTailCall;
CallingConv::ID CallConv = CLI.CallConv;
bool isVarArg = CLI.IsVarArg;
@ -2902,7 +2901,7 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
SmallVector<SDValue, 8> Ops;
Ops.push_back(Chain);
Ops.push_back(Subtarget->inMips16Mode()? CalleeSave: Callee);
Ops.push_back(Callee);
// Add argument registers to the end of the list so that they are
// known live into the call.
@ -2910,8 +2909,6 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
Ops.push_back(DAG.getRegister(RegsToPass[i].first,
RegsToPass[i].second.getValueType()));
if (Subtarget->inMips16Mode())
Ops.push_back(Callee);
// Add a register mask operand representing the call-preserved registers.
const TargetRegisterInfo *TRI = getTargetMachine().getRegisterInfo();
const uint32_t *Mask = TRI->getCallPreservedMask(CallConv);

18
lib/Target/Mips/MipsInstrInfo.cpp
View File

@ -30,7 +30,6 @@ using namespace llvm;
MipsInstrInfo::MipsInstrInfo(MipsTargetMachine &tm)
: MipsGenInstrInfo(Mips::ADJCALLSTACKDOWN, Mips::ADJCALLSTACKUP),
TM(tm), IsN64(TM.getSubtarget<MipsSubtarget>().isABI_N64()),
InMips16Mode(TM.getSubtarget<MipsSubtarget>().inMips16Mode()),
RI(*TM.getSubtargetImpl(), *this),
UncondBrOpc(TM.getRelocationModel() == Reloc::PIC_ ? Mips::B : Mips::J) {}
@ -108,13 +107,8 @@ copyPhysReg(MachineBasicBlock &MBB,
unsigned Opc = 0, ZeroReg = 0;
if (Mips::CPURegsRegClass.contains(DestReg)) { // Copy to CPU Reg.
if (Mips::CPURegsRegClass.contains(SrcReg)) {
if (InMips16Mode)
Opc=Mips::Mov32R16;
else {
Opc = Mips::ADDu, ZeroReg = Mips::ZERO;
}
}
if (Mips::CPURegsRegClass.contains(SrcReg))
Opc = Mips::ADDu, ZeroReg = Mips::ZERO;
else if (Mips::CCRRegClass.contains(SrcReg))
Opc = Mips::CFC1;
else if (Mips::FGR32RegClass.contains(SrcReg))
@ -246,12 +240,6 @@ void MipsInstrInfo::ExpandRetRA(MachineBasicBlock &MBB,
.addReg(Mips::RA);
}
void MipsInstrInfo::ExpandRetRA16(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned Opc) const {
BuildMI(MBB, I, I->getDebugLoc(), TM.getInstrInfo()->get(Opc));
}
void MipsInstrInfo::ExpandExtractElementF64(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
const TargetInstrInfo *TII = TM.getInstrInfo();
@ -295,7 +283,7 @@ bool MipsInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
ExpandRetRA(MBB, MI, Mips::RET);
break;
case Mips::RetRA16:
ExpandRetRA16(MBB, MI, Mips::JrRa16);
ExpandRetRA(MBB, MI, Mips::RET16);
break;
case Mips::BuildPairF64:
ExpandBuildPairF64(MBB, MI);

5
lib/Target/Mips/MipsInstrInfo.h
View File

@ -27,7 +27,7 @@ namespace llvm {
class MipsInstrInfo : public MipsGenInstrInfo {
MipsTargetMachine &TM;
bool IsN64; bool InMips16Mode;
bool IsN64;
const MipsRegisterInfo RI;
unsigned UncondBrOpc;
public:
@ -65,9 +65,6 @@ public:
private:
void ExpandRetRA(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned Opc) const;
void ExpandRetRA16(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned Opc) const;
void BuildCondBr(MachineBasicBlock &MBB, MachineBasicBlock *TBB, DebugLoc DL,
const SmallVectorImpl<MachineOperand>& Cond) const;
void ExpandExtractElementF64(MachineBasicBlock &MBB,

11
lib/Target/Mips/MipsMachineFunction.cpp
View File

@ -33,13 +33,10 @@ unsigned MipsFunctionInfo::getGlobalBaseReg() {
const MipsSubtarget &ST = MF.getTarget().getSubtarget<MipsSubtarget>();
const TargetRegisterClass *RC;
if (ST.inMips16Mode())
RC=(const TargetRegisterClass*)&Mips::CPU16RegsRegClass;
else
RC = ST.isABI_N64() ?
(const TargetRegisterClass*)&Mips::CPU64RegsRegClass :
(const TargetRegisterClass*)&Mips::CPURegsRegClass;
const TargetRegisterClass *RC = ST.isABI_N64() ?
(const TargetRegisterClass*)&Mips::CPU64RegsRegClass :
(const TargetRegisterClass*)&Mips::CPURegsRegClass;
return GlobalBaseReg = MF.getRegInfo().createVirtualRegister(RC);
}