mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 00:11:00 +00:00
5b3332cc27
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39978 91177308-0d34-0410-b5e6-96231b3b80d8
1593 lines
62 KiB
C++
1593 lines
62 KiB
C++
//===- X86RegisterInfo.cpp - X86 Register Information -----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the X86 implementation of the MRegisterInfo class. This
|
|
// file is responsible for the frame pointer elimination optimization on X86.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "X86.h"
|
|
#include "X86RegisterInfo.h"
|
|
#include "X86InstrBuilder.h"
|
|
#include "X86MachineFunctionInfo.h"
|
|
#include "X86Subtarget.h"
|
|
#include "X86TargetMachine.h"
|
|
#include "llvm/Constants.h"
|
|
#include "llvm/Function.h"
|
|
#include "llvm/Type.h"
|
|
#include "llvm/CodeGen/ValueTypes.h"
|
|
#include "llvm/CodeGen/MachineInstrBuilder.h"
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
#include "llvm/CodeGen/MachineFrameInfo.h"
|
|
#include "llvm/CodeGen/MachineLocation.h"
|
|
#include "llvm/Target/TargetAsmInfo.h"
|
|
#include "llvm/Target/TargetFrameInfo.h"
|
|
#include "llvm/Target/TargetInstrInfo.h"
|
|
#include "llvm/Target/TargetMachine.h"
|
|
#include "llvm/Target/TargetOptions.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/ADT/BitVector.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
cl::opt<bool>
|
|
NoFusing("disable-spill-fusing",
|
|
cl::desc("Disable fusing of spill code into instructions"));
|
|
cl::opt<bool>
|
|
PrintFailedFusing("print-failed-fuse-candidates",
|
|
cl::desc("Print instructions that the allocator wants to"
|
|
" fuse, but the X86 backend currently can't"),
|
|
cl::Hidden);
|
|
}
|
|
|
|
X86RegisterInfo::X86RegisterInfo(X86TargetMachine &tm,
|
|
const TargetInstrInfo &tii)
|
|
: X86GenRegisterInfo(X86::ADJCALLSTACKDOWN, X86::ADJCALLSTACKUP),
|
|
TM(tm), TII(tii) {
|
|
// Cache some information.
|
|
const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
|
|
Is64Bit = Subtarget->is64Bit();
|
|
if (Is64Bit) {
|
|
SlotSize = 8;
|
|
StackPtr = X86::RSP;
|
|
FramePtr = X86::RBP;
|
|
} else {
|
|
SlotSize = 4;
|
|
StackPtr = X86::ESP;
|
|
FramePtr = X86::EBP;
|
|
}
|
|
}
|
|
|
|
bool X86RegisterInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
const std::vector<CalleeSavedInfo> &CSI) const {
|
|
if (CSI.empty())
|
|
return false;
|
|
|
|
MachineFunction &MF = *MBB.getParent();
|
|
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
|
|
X86FI->setCalleeSavedFrameSize(CSI.size() * SlotSize);
|
|
unsigned Opc = Is64Bit ? X86::PUSH64r : X86::PUSH32r;
|
|
for (unsigned i = CSI.size(); i != 0; --i) {
|
|
unsigned Reg = CSI[i-1].getReg();
|
|
// Add the callee-saved register as live-in. It's killed at the spill.
|
|
MBB.addLiveIn(Reg);
|
|
BuildMI(MBB, MI, TII.get(Opc)).addReg(Reg);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool X86RegisterInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
const std::vector<CalleeSavedInfo> &CSI) const {
|
|
if (CSI.empty())
|
|
return false;
|
|
|
|
unsigned Opc = Is64Bit ? X86::POP64r : X86::POP32r;
|
|
for (unsigned i = 0, e = CSI.size(); i != e; ++i) {
|
|
unsigned Reg = CSI[i].getReg();
|
|
BuildMI(MBB, MI, TII.get(Opc), Reg);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void X86RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
unsigned SrcReg, int FrameIdx,
|
|
const TargetRegisterClass *RC) const {
|
|
unsigned Opc;
|
|
if (RC == &X86::GR64RegClass) {
|
|
Opc = X86::MOV64mr;
|
|
} else if (RC == &X86::GR32RegClass) {
|
|
Opc = X86::MOV32mr;
|
|
} else if (RC == &X86::GR16RegClass) {
|
|
Opc = X86::MOV16mr;
|
|
} else if (RC == &X86::GR8RegClass) {
|
|
Opc = X86::MOV8mr;
|
|
} else if (RC == &X86::GR32_RegClass) {
|
|
Opc = X86::MOV32_mr;
|
|
} else if (RC == &X86::GR16_RegClass) {
|
|
Opc = X86::MOV16_mr;
|
|
} else if (RC == &X86::RFP64RegClass || RC == &X86::RSTRegClass) {
|
|
Opc = X86::ST_Fp64m;
|
|
} else if (RC == &X86::RFP32RegClass) {
|
|
Opc = X86::ST_Fp32m;
|
|
} else if (RC == &X86::FR32RegClass) {
|
|
Opc = X86::MOVSSmr;
|
|
} else if (RC == &X86::FR64RegClass) {
|
|
Opc = X86::MOVSDmr;
|
|
} else if (RC == &X86::VR128RegClass) {
|
|
Opc = X86::MOVAPSmr;
|
|
} else if (RC == &X86::VR64RegClass) {
|
|
Opc = X86::MMX_MOVQ64mr;
|
|
} else {
|
|
assert(0 && "Unknown regclass");
|
|
abort();
|
|
}
|
|
addFrameReference(BuildMI(MBB, MI, TII.get(Opc)), FrameIdx)
|
|
.addReg(SrcReg, false, false, true);
|
|
}
|
|
|
|
void X86RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
unsigned DestReg, int FrameIdx,
|
|
const TargetRegisterClass *RC) const{
|
|
unsigned Opc;
|
|
if (RC == &X86::GR64RegClass) {
|
|
Opc = X86::MOV64rm;
|
|
} else if (RC == &X86::GR32RegClass) {
|
|
Opc = X86::MOV32rm;
|
|
} else if (RC == &X86::GR16RegClass) {
|
|
Opc = X86::MOV16rm;
|
|
} else if (RC == &X86::GR8RegClass) {
|
|
Opc = X86::MOV8rm;
|
|
} else if (RC == &X86::GR32_RegClass) {
|
|
Opc = X86::MOV32_rm;
|
|
} else if (RC == &X86::GR16_RegClass) {
|
|
Opc = X86::MOV16_rm;
|
|
} else if (RC == &X86::RFP64RegClass || RC == &X86::RSTRegClass) {
|
|
Opc = X86::LD_Fp64m;
|
|
} else if (RC == &X86::RFP32RegClass) {
|
|
Opc = X86::LD_Fp32m;
|
|
} else if (RC == &X86::FR32RegClass) {
|
|
Opc = X86::MOVSSrm;
|
|
} else if (RC == &X86::FR64RegClass) {
|
|
Opc = X86::MOVSDrm;
|
|
} else if (RC == &X86::VR128RegClass) {
|
|
Opc = X86::MOVAPSrm;
|
|
} else if (RC == &X86::VR64RegClass) {
|
|
Opc = X86::MMX_MOVQ64rm;
|
|
} else {
|
|
assert(0 && "Unknown regclass");
|
|
abort();
|
|
}
|
|
addFrameReference(BuildMI(MBB, MI, TII.get(Opc), DestReg), FrameIdx);
|
|
}
|
|
|
|
void X86RegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
unsigned DestReg, unsigned SrcReg,
|
|
const TargetRegisterClass *RC) const {
|
|
unsigned Opc;
|
|
if (RC == &X86::GR64RegClass) {
|
|
Opc = X86::MOV64rr;
|
|
} else if (RC == &X86::GR32RegClass) {
|
|
Opc = X86::MOV32rr;
|
|
} else if (RC == &X86::GR16RegClass) {
|
|
Opc = X86::MOV16rr;
|
|
} else if (RC == &X86::GR8RegClass) {
|
|
Opc = X86::MOV8rr;
|
|
} else if (RC == &X86::GR32_RegClass) {
|
|
Opc = X86::MOV32_rr;
|
|
} else if (RC == &X86::GR16_RegClass) {
|
|
Opc = X86::MOV16_rr;
|
|
} else if (RC == &X86::RFP32RegClass) {
|
|
Opc = X86::MOV_Fp3232;
|
|
} else if (RC == &X86::RFP64RegClass || RC == &X86::RSTRegClass) {
|
|
Opc = X86::MOV_Fp6464;
|
|
} else if (RC == &X86::FR32RegClass) {
|
|
Opc = X86::FsMOVAPSrr;
|
|
} else if (RC == &X86::FR64RegClass) {
|
|
Opc = X86::FsMOVAPDrr;
|
|
} else if (RC == &X86::VR128RegClass) {
|
|
Opc = X86::MOVAPSrr;
|
|
} else if (RC == &X86::VR64RegClass) {
|
|
Opc = X86::MMX_MOVQ64rr;
|
|
} else {
|
|
assert(0 && "Unknown regclass");
|
|
abort();
|
|
}
|
|
BuildMI(MBB, MI, TII.get(Opc), DestReg).addReg(SrcReg);
|
|
}
|
|
|
|
|
|
void X86RegisterInfo::reMaterialize(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator I,
|
|
unsigned DestReg,
|
|
const MachineInstr *Orig) const {
|
|
MachineInstr *MI = Orig->clone();
|
|
MI->getOperand(0).setReg(DestReg);
|
|
MBB.insert(I, MI);
|
|
}
|
|
|
|
static MachineInstr *FuseTwoAddrInst(unsigned Opcode, unsigned FrameIndex,
|
|
MachineInstr *MI,
|
|
const TargetInstrInfo &TII) {
|
|
unsigned NumOps = TII.getNumOperands(MI->getOpcode())-2;
|
|
// Create the base instruction with the memory operand as the first part.
|
|
MachineInstrBuilder MIB = addFrameReference(BuildMI(TII.get(Opcode)),
|
|
FrameIndex);
|
|
|
|
// Loop over the rest of the ri operands, converting them over.
|
|
for (unsigned i = 0; i != NumOps; ++i) {
|
|
MachineOperand &MO = MI->getOperand(i+2);
|
|
if (MO.isReg())
|
|
MIB = MIB.addReg(MO.getReg(), false, MO.isImplicit());
|
|
else if (MO.isImm())
|
|
MIB = MIB.addImm(MO.getImm());
|
|
else if (MO.isGlobalAddress())
|
|
MIB = MIB.addGlobalAddress(MO.getGlobal(), MO.getOffset());
|
|
else if (MO.isJumpTableIndex())
|
|
MIB = MIB.addJumpTableIndex(MO.getJumpTableIndex());
|
|
else if (MO.isExternalSymbol())
|
|
MIB = MIB.addExternalSymbol(MO.getSymbolName());
|
|
else
|
|
assert(0 && "Unknown operand type!");
|
|
}
|
|
return MIB;
|
|
}
|
|
|
|
static MachineInstr *FuseInst(unsigned Opcode, unsigned OpNo,
|
|
unsigned FrameIndex, MachineInstr *MI,
|
|
const TargetInstrInfo &TII) {
|
|
MachineInstrBuilder MIB = BuildMI(TII.get(Opcode));
|
|
|
|
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
|
|
MachineOperand &MO = MI->getOperand(i);
|
|
if (i == OpNo) {
|
|
assert(MO.isReg() && "Expected to fold into reg operand!");
|
|
MIB = addFrameReference(MIB, FrameIndex);
|
|
} else if (MO.isReg())
|
|
MIB = MIB.addReg(MO.getReg(), MO.isDef(), MO.isImplicit());
|
|
else if (MO.isImm())
|
|
MIB = MIB.addImm(MO.getImm());
|
|
else if (MO.isGlobalAddress())
|
|
MIB = MIB.addGlobalAddress(MO.getGlobal(), MO.getOffset());
|
|
else if (MO.isJumpTableIndex())
|
|
MIB = MIB.addJumpTableIndex(MO.getJumpTableIndex());
|
|
else if (MO.isExternalSymbol())
|
|
MIB = MIB.addExternalSymbol(MO.getSymbolName());
|
|
else
|
|
assert(0 && "Unknown operand for FuseInst!");
|
|
}
|
|
return MIB;
|
|
}
|
|
|
|
static MachineInstr *MakeM0Inst(const TargetInstrInfo &TII,
|
|
unsigned Opcode, unsigned FrameIndex,
|
|
MachineInstr *MI) {
|
|
return addFrameReference(BuildMI(TII.get(Opcode)), FrameIndex).addImm(0);
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Efficient Lookup Table Support
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
namespace {
|
|
/// TableEntry - Maps the 'from' opcode to a fused form of the 'to' opcode.
|
|
///
|
|
struct TableEntry {
|
|
unsigned from; // Original opcode.
|
|
unsigned to; // New opcode.
|
|
|
|
// less operators used by STL search.
|
|
bool operator<(const TableEntry &TE) const { return from < TE.from; }
|
|
friend bool operator<(const TableEntry &TE, unsigned V) {
|
|
return TE.from < V;
|
|
}
|
|
friend bool operator<(unsigned V, const TableEntry &TE) {
|
|
return V < TE.from;
|
|
}
|
|
};
|
|
}
|
|
|
|
/// TableIsSorted - Return true if the table is in 'from' opcode order.
|
|
///
|
|
static bool TableIsSorted(const TableEntry *Table, unsigned NumEntries) {
|
|
for (unsigned i = 1; i != NumEntries; ++i)
|
|
if (!(Table[i-1] < Table[i])) {
|
|
cerr << "Entries out of order " << Table[i-1].from
|
|
<< " " << Table[i].from << "\n";
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/// TableLookup - Return the table entry matching the specified opcode.
|
|
/// Otherwise return NULL.
|
|
static const TableEntry *TableLookup(const TableEntry *Table, unsigned N,
|
|
unsigned Opcode) {
|
|
const TableEntry *I = std::lower_bound(Table, Table+N, Opcode);
|
|
if (I != Table+N && I->from == Opcode)
|
|
return I;
|
|
return NULL;
|
|
}
|
|
|
|
#define ARRAY_SIZE(TABLE) \
|
|
(sizeof(TABLE)/sizeof(TABLE[0]))
|
|
|
|
#ifdef NDEBUG
|
|
#define ASSERT_SORTED(TABLE)
|
|
#else
|
|
#define ASSERT_SORTED(TABLE) \
|
|
{ static bool TABLE##Checked = false; \
|
|
if (!TABLE##Checked) { \
|
|
assert(TableIsSorted(TABLE, ARRAY_SIZE(TABLE)) && \
|
|
"All lookup tables must be sorted for efficient access!"); \
|
|
TABLE##Checked = true; \
|
|
} \
|
|
}
|
|
#endif
|
|
|
|
|
|
MachineInstr* X86RegisterInfo::foldMemoryOperand(MachineInstr *MI,
|
|
unsigned i,
|
|
int FrameIndex) const {
|
|
// Check switch flag
|
|
if (NoFusing) return NULL;
|
|
|
|
// Table (and size) to search
|
|
const TableEntry *OpcodeTablePtr = NULL;
|
|
unsigned OpcodeTableSize = 0;
|
|
bool isTwoAddrFold = false;
|
|
unsigned NumOps = TII.getNumOperands(MI->getOpcode());
|
|
bool isTwoAddr = NumOps > 1 &&
|
|
MI->getInstrDescriptor()->getOperandConstraint(1, TOI::TIED_TO) != -1;
|
|
|
|
MachineInstr *NewMI = NULL;
|
|
// Folding a memory location into the two-address part of a two-address
|
|
// instruction is different than folding it other places. It requires
|
|
// replacing the *two* registers with the memory location.
|
|
if (isTwoAddr && NumOps >= 2 && i < 2 &&
|
|
MI->getOperand(0).isReg() &&
|
|
MI->getOperand(1).isReg() &&
|
|
MI->getOperand(0).getReg() == MI->getOperand(1).getReg()) {
|
|
static const TableEntry OpcodeTable[] = {
|
|
{ X86::ADC32ri, X86::ADC32mi },
|
|
{ X86::ADC32ri8, X86::ADC32mi8 },
|
|
{ X86::ADC32rr, X86::ADC32mr },
|
|
{ X86::ADC64ri32, X86::ADC64mi32 },
|
|
{ X86::ADC64ri8, X86::ADC64mi8 },
|
|
{ X86::ADC64rr, X86::ADC64mr },
|
|
{ X86::ADD16ri, X86::ADD16mi },
|
|
{ X86::ADD16ri8, X86::ADD16mi8 },
|
|
{ X86::ADD16rr, X86::ADD16mr },
|
|
{ X86::ADD32ri, X86::ADD32mi },
|
|
{ X86::ADD32ri8, X86::ADD32mi8 },
|
|
{ X86::ADD32rr, X86::ADD32mr },
|
|
{ X86::ADD64ri32, X86::ADD64mi32 },
|
|
{ X86::ADD64ri8, X86::ADD64mi8 },
|
|
{ X86::ADD64rr, X86::ADD64mr },
|
|
{ X86::ADD8ri, X86::ADD8mi },
|
|
{ X86::ADD8rr, X86::ADD8mr },
|
|
{ X86::AND16ri, X86::AND16mi },
|
|
{ X86::AND16ri8, X86::AND16mi8 },
|
|
{ X86::AND16rr, X86::AND16mr },
|
|
{ X86::AND32ri, X86::AND32mi },
|
|
{ X86::AND32ri8, X86::AND32mi8 },
|
|
{ X86::AND32rr, X86::AND32mr },
|
|
{ X86::AND64ri32, X86::AND64mi32 },
|
|
{ X86::AND64ri8, X86::AND64mi8 },
|
|
{ X86::AND64rr, X86::AND64mr },
|
|
{ X86::AND8ri, X86::AND8mi },
|
|
{ X86::AND8rr, X86::AND8mr },
|
|
{ X86::DEC16r, X86::DEC16m },
|
|
{ X86::DEC32r, X86::DEC32m },
|
|
{ X86::DEC64_16r, X86::DEC16m },
|
|
{ X86::DEC64_32r, X86::DEC32m },
|
|
{ X86::DEC64r, X86::DEC64m },
|
|
{ X86::DEC8r, X86::DEC8m },
|
|
{ X86::INC16r, X86::INC16m },
|
|
{ X86::INC32r, X86::INC32m },
|
|
{ X86::INC64_16r, X86::INC16m },
|
|
{ X86::INC64_32r, X86::INC32m },
|
|
{ X86::INC64r, X86::INC64m },
|
|
{ X86::INC8r, X86::INC8m },
|
|
{ X86::NEG16r, X86::NEG16m },
|
|
{ X86::NEG32r, X86::NEG32m },
|
|
{ X86::NEG64r, X86::NEG64m },
|
|
{ X86::NEG8r, X86::NEG8m },
|
|
{ X86::NOT16r, X86::NOT16m },
|
|
{ X86::NOT32r, X86::NOT32m },
|
|
{ X86::NOT64r, X86::NOT64m },
|
|
{ X86::NOT8r, X86::NOT8m },
|
|
{ X86::OR16ri, X86::OR16mi },
|
|
{ X86::OR16ri8, X86::OR16mi8 },
|
|
{ X86::OR16rr, X86::OR16mr },
|
|
{ X86::OR32ri, X86::OR32mi },
|
|
{ X86::OR32ri8, X86::OR32mi8 },
|
|
{ X86::OR32rr, X86::OR32mr },
|
|
{ X86::OR64ri32, X86::OR64mi32 },
|
|
{ X86::OR64ri8, X86::OR64mi8 },
|
|
{ X86::OR64rr, X86::OR64mr },
|
|
{ X86::OR8ri, X86::OR8mi },
|
|
{ X86::OR8rr, X86::OR8mr },
|
|
{ X86::ROL16r1, X86::ROL16m1 },
|
|
{ X86::ROL16rCL, X86::ROL16mCL },
|
|
{ X86::ROL16ri, X86::ROL16mi },
|
|
{ X86::ROL32r1, X86::ROL32m1 },
|
|
{ X86::ROL32rCL, X86::ROL32mCL },
|
|
{ X86::ROL32ri, X86::ROL32mi },
|
|
{ X86::ROL64r1, X86::ROL64m1 },
|
|
{ X86::ROL64rCL, X86::ROL64mCL },
|
|
{ X86::ROL64ri, X86::ROL64mi },
|
|
{ X86::ROL8r1, X86::ROL8m1 },
|
|
{ X86::ROL8rCL, X86::ROL8mCL },
|
|
{ X86::ROL8ri, X86::ROL8mi },
|
|
{ X86::ROR16r1, X86::ROR16m1 },
|
|
{ X86::ROR16rCL, X86::ROR16mCL },
|
|
{ X86::ROR16ri, X86::ROR16mi },
|
|
{ X86::ROR32r1, X86::ROR32m1 },
|
|
{ X86::ROR32rCL, X86::ROR32mCL },
|
|
{ X86::ROR32ri, X86::ROR32mi },
|
|
{ X86::ROR64r1, X86::ROR64m1 },
|
|
{ X86::ROR64rCL, X86::ROR64mCL },
|
|
{ X86::ROR64ri, X86::ROR64mi },
|
|
{ X86::ROR8r1, X86::ROR8m1 },
|
|
{ X86::ROR8rCL, X86::ROR8mCL },
|
|
{ X86::ROR8ri, X86::ROR8mi },
|
|
{ X86::SAR16r1, X86::SAR16m1 },
|
|
{ X86::SAR16rCL, X86::SAR16mCL },
|
|
{ X86::SAR16ri, X86::SAR16mi },
|
|
{ X86::SAR32r1, X86::SAR32m1 },
|
|
{ X86::SAR32rCL, X86::SAR32mCL },
|
|
{ X86::SAR32ri, X86::SAR32mi },
|
|
{ X86::SAR64r1, X86::SAR64m1 },
|
|
{ X86::SAR64rCL, X86::SAR64mCL },
|
|
{ X86::SAR64ri, X86::SAR64mi },
|
|
{ X86::SAR8r1, X86::SAR8m1 },
|
|
{ X86::SAR8rCL, X86::SAR8mCL },
|
|
{ X86::SAR8ri, X86::SAR8mi },
|
|
{ X86::SBB32ri, X86::SBB32mi },
|
|
{ X86::SBB32ri8, X86::SBB32mi8 },
|
|
{ X86::SBB32rr, X86::SBB32mr },
|
|
{ X86::SBB64ri32, X86::SBB64mi32 },
|
|
{ X86::SBB64ri8, X86::SBB64mi8 },
|
|
{ X86::SBB64rr, X86::SBB64mr },
|
|
{ X86::SHL16r1, X86::SHL16m1 },
|
|
{ X86::SHL16rCL, X86::SHL16mCL },
|
|
{ X86::SHL16ri, X86::SHL16mi },
|
|
{ X86::SHL32r1, X86::SHL32m1 },
|
|
{ X86::SHL32rCL, X86::SHL32mCL },
|
|
{ X86::SHL32ri, X86::SHL32mi },
|
|
{ X86::SHL64r1, X86::SHL64m1 },
|
|
{ X86::SHL64rCL, X86::SHL64mCL },
|
|
{ X86::SHL64ri, X86::SHL64mi },
|
|
{ X86::SHL8r1, X86::SHL8m1 },
|
|
{ X86::SHL8rCL, X86::SHL8mCL },
|
|
{ X86::SHL8ri, X86::SHL8mi },
|
|
{ X86::SHLD16rrCL, X86::SHLD16mrCL },
|
|
{ X86::SHLD16rri8, X86::SHLD16mri8 },
|
|
{ X86::SHLD32rrCL, X86::SHLD32mrCL },
|
|
{ X86::SHLD32rri8, X86::SHLD32mri8 },
|
|
{ X86::SHLD64rrCL, X86::SHLD64mrCL },
|
|
{ X86::SHLD64rri8, X86::SHLD64mri8 },
|
|
{ X86::SHR16r1, X86::SHR16m1 },
|
|
{ X86::SHR16rCL, X86::SHR16mCL },
|
|
{ X86::SHR16ri, X86::SHR16mi },
|
|
{ X86::SHR32r1, X86::SHR32m1 },
|
|
{ X86::SHR32rCL, X86::SHR32mCL },
|
|
{ X86::SHR32ri, X86::SHR32mi },
|
|
{ X86::SHR64r1, X86::SHR64m1 },
|
|
{ X86::SHR64rCL, X86::SHR64mCL },
|
|
{ X86::SHR64ri, X86::SHR64mi },
|
|
{ X86::SHR8r1, X86::SHR8m1 },
|
|
{ X86::SHR8rCL, X86::SHR8mCL },
|
|
{ X86::SHR8ri, X86::SHR8mi },
|
|
{ X86::SHRD16rrCL, X86::SHRD16mrCL },
|
|
{ X86::SHRD16rri8, X86::SHRD16mri8 },
|
|
{ X86::SHRD32rrCL, X86::SHRD32mrCL },
|
|
{ X86::SHRD32rri8, X86::SHRD32mri8 },
|
|
{ X86::SHRD64rrCL, X86::SHRD64mrCL },
|
|
{ X86::SHRD64rri8, X86::SHRD64mri8 },
|
|
{ X86::SUB16ri, X86::SUB16mi },
|
|
{ X86::SUB16ri8, X86::SUB16mi8 },
|
|
{ X86::SUB16rr, X86::SUB16mr },
|
|
{ X86::SUB32ri, X86::SUB32mi },
|
|
{ X86::SUB32ri8, X86::SUB32mi8 },
|
|
{ X86::SUB32rr, X86::SUB32mr },
|
|
{ X86::SUB64ri32, X86::SUB64mi32 },
|
|
{ X86::SUB64ri8, X86::SUB64mi8 },
|
|
{ X86::SUB64rr, X86::SUB64mr },
|
|
{ X86::SUB8ri, X86::SUB8mi },
|
|
{ X86::SUB8rr, X86::SUB8mr },
|
|
{ X86::XOR16ri, X86::XOR16mi },
|
|
{ X86::XOR16ri8, X86::XOR16mi8 },
|
|
{ X86::XOR16rr, X86::XOR16mr },
|
|
{ X86::XOR32ri, X86::XOR32mi },
|
|
{ X86::XOR32ri8, X86::XOR32mi8 },
|
|
{ X86::XOR32rr, X86::XOR32mr },
|
|
{ X86::XOR64ri32, X86::XOR64mi32 },
|
|
{ X86::XOR64ri8, X86::XOR64mi8 },
|
|
{ X86::XOR64rr, X86::XOR64mr },
|
|
{ X86::XOR8ri, X86::XOR8mi },
|
|
{ X86::XOR8rr, X86::XOR8mr }
|
|
};
|
|
ASSERT_SORTED(OpcodeTable);
|
|
OpcodeTablePtr = OpcodeTable;
|
|
OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
|
|
isTwoAddrFold = true;
|
|
} else if (i == 0) { // If operand 0
|
|
if (MI->getOpcode() == X86::MOV16r0)
|
|
NewMI = MakeM0Inst(TII, X86::MOV16mi, FrameIndex, MI);
|
|
else if (MI->getOpcode() == X86::MOV32r0)
|
|
NewMI = MakeM0Inst(TII, X86::MOV32mi, FrameIndex, MI);
|
|
else if (MI->getOpcode() == X86::MOV64r0)
|
|
NewMI = MakeM0Inst(TII, X86::MOV64mi32, FrameIndex, MI);
|
|
else if (MI->getOpcode() == X86::MOV8r0)
|
|
NewMI = MakeM0Inst(TII, X86::MOV8mi, FrameIndex, MI);
|
|
if (NewMI) {
|
|
NewMI->copyKillDeadInfo(MI);
|
|
return NewMI;
|
|
}
|
|
|
|
static const TableEntry OpcodeTable[] = {
|
|
{ X86::CMP16ri, X86::CMP16mi },
|
|
{ X86::CMP16ri8, X86::CMP16mi8 },
|
|
{ X86::CMP32ri, X86::CMP32mi },
|
|
{ X86::CMP32ri8, X86::CMP32mi8 },
|
|
{ X86::CMP8ri, X86::CMP8mi },
|
|
{ X86::DIV16r, X86::DIV16m },
|
|
{ X86::DIV32r, X86::DIV32m },
|
|
{ X86::DIV64r, X86::DIV64m },
|
|
{ X86::DIV8r, X86::DIV8m },
|
|
{ X86::FsMOVAPDrr, X86::MOVSDmr },
|
|
{ X86::FsMOVAPSrr, X86::MOVSSmr },
|
|
{ X86::IDIV16r, X86::IDIV16m },
|
|
{ X86::IDIV32r, X86::IDIV32m },
|
|
{ X86::IDIV64r, X86::IDIV64m },
|
|
{ X86::IDIV8r, X86::IDIV8m },
|
|
{ X86::IMUL16r, X86::IMUL16m },
|
|
{ X86::IMUL32r, X86::IMUL32m },
|
|
{ X86::IMUL64r, X86::IMUL64m },
|
|
{ X86::IMUL8r, X86::IMUL8m },
|
|
{ X86::MOV16ri, X86::MOV16mi },
|
|
{ X86::MOV16rr, X86::MOV16mr },
|
|
{ X86::MOV32ri, X86::MOV32mi },
|
|
{ X86::MOV32rr, X86::MOV32mr },
|
|
{ X86::MOV64ri32, X86::MOV64mi32 },
|
|
{ X86::MOV64rr, X86::MOV64mr },
|
|
{ X86::MOV8ri, X86::MOV8mi },
|
|
{ X86::MOV8rr, X86::MOV8mr },
|
|
{ X86::MOVAPDrr, X86::MOVAPDmr },
|
|
{ X86::MOVAPSrr, X86::MOVAPSmr },
|
|
{ X86::MOVPDI2DIrr, X86::MOVPDI2DImr },
|
|
{ X86::MOVPQIto64rr,X86::MOVPQIto64mr },
|
|
{ X86::MOVPS2SSrr, X86::MOVPS2SSmr },
|
|
{ X86::MOVSDrr, X86::MOVSDmr },
|
|
{ X86::MOVSDto64rr, X86::MOVSDto64mr },
|
|
{ X86::MOVSS2DIrr, X86::MOVSS2DImr },
|
|
{ X86::MOVSSrr, X86::MOVSSmr },
|
|
{ X86::MOVUPDrr, X86::MOVUPDmr },
|
|
{ X86::MOVUPSrr, X86::MOVUPSmr },
|
|
{ X86::MUL16r, X86::MUL16m },
|
|
{ X86::MUL32r, X86::MUL32m },
|
|
{ X86::MUL64r, X86::MUL64m },
|
|
{ X86::MUL8r, X86::MUL8m },
|
|
{ X86::SETAEr, X86::SETAEm },
|
|
{ X86::SETAr, X86::SETAm },
|
|
{ X86::SETBEr, X86::SETBEm },
|
|
{ X86::SETBr, X86::SETBm },
|
|
{ X86::SETEr, X86::SETEm },
|
|
{ X86::SETGEr, X86::SETGEm },
|
|
{ X86::SETGr, X86::SETGm },
|
|
{ X86::SETLEr, X86::SETLEm },
|
|
{ X86::SETLr, X86::SETLm },
|
|
{ X86::SETNEr, X86::SETNEm },
|
|
{ X86::SETNPr, X86::SETNPm },
|
|
{ X86::SETNSr, X86::SETNSm },
|
|
{ X86::SETPr, X86::SETPm },
|
|
{ X86::SETSr, X86::SETSm },
|
|
{ X86::TEST16ri, X86::TEST16mi },
|
|
{ X86::TEST32ri, X86::TEST32mi },
|
|
{ X86::TEST64ri32, X86::TEST64mi32 },
|
|
{ X86::TEST8ri, X86::TEST8mi },
|
|
{ X86::XCHG16rr, X86::XCHG16mr },
|
|
{ X86::XCHG32rr, X86::XCHG32mr },
|
|
{ X86::XCHG64rr, X86::XCHG64mr },
|
|
{ X86::XCHG8rr, X86::XCHG8mr }
|
|
};
|
|
ASSERT_SORTED(OpcodeTable);
|
|
OpcodeTablePtr = OpcodeTable;
|
|
OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
|
|
} else if (i == 1) {
|
|
static const TableEntry OpcodeTable[] = {
|
|
{ X86::CMP16rr, X86::CMP16rm },
|
|
{ X86::CMP32rr, X86::CMP32rm },
|
|
{ X86::CMP64ri32, X86::CMP64mi32 },
|
|
{ X86::CMP64ri8, X86::CMP64mi8 },
|
|
{ X86::CMP64rr, X86::CMP64rm },
|
|
{ X86::CMP8rr, X86::CMP8rm },
|
|
{ X86::CMPPDrri, X86::CMPPDrmi },
|
|
{ X86::CMPPSrri, X86::CMPPSrmi },
|
|
{ X86::CMPSDrr, X86::CMPSDrm },
|
|
{ X86::CMPSSrr, X86::CMPSSrm },
|
|
{ X86::CVTSD2SSrr, X86::CVTSD2SSrm },
|
|
{ X86::CVTSI2SD64rr, X86::CVTSI2SD64rm },
|
|
{ X86::CVTSI2SDrr, X86::CVTSI2SDrm },
|
|
{ X86::CVTSI2SS64rr, X86::CVTSI2SS64rm },
|
|
{ X86::CVTSI2SSrr, X86::CVTSI2SSrm },
|
|
{ X86::CVTSS2SDrr, X86::CVTSS2SDrm },
|
|
{ X86::CVTTSD2SI64rr, X86::CVTTSD2SI64rm },
|
|
{ X86::CVTTSD2SIrr, X86::CVTTSD2SIrm },
|
|
{ X86::CVTTSS2SI64rr, X86::CVTTSS2SI64rm },
|
|
{ X86::CVTTSS2SIrr, X86::CVTTSS2SIrm },
|
|
{ X86::FsMOVAPDrr, X86::MOVSDrm },
|
|
{ X86::FsMOVAPSrr, X86::MOVSSrm },
|
|
{ X86::IMUL16rri, X86::IMUL16rmi },
|
|
{ X86::IMUL16rri8, X86::IMUL16rmi8 },
|
|
{ X86::IMUL32rri, X86::IMUL32rmi },
|
|
{ X86::IMUL32rri8, X86::IMUL32rmi8 },
|
|
{ X86::IMUL64rr, X86::IMUL64rm },
|
|
{ X86::IMUL64rri32, X86::IMUL64rmi32 },
|
|
{ X86::IMUL64rri8, X86::IMUL64rmi8 },
|
|
{ X86::Int_CMPSDrr, X86::Int_CMPSDrm },
|
|
{ X86::Int_CMPSSrr, X86::Int_CMPSSrm },
|
|
{ X86::Int_COMISDrr, X86::Int_COMISDrm },
|
|
{ X86::Int_COMISSrr, X86::Int_COMISSrm },
|
|
{ X86::Int_CVTDQ2PDrr, X86::Int_CVTDQ2PDrm },
|
|
{ X86::Int_CVTDQ2PSrr, X86::Int_CVTDQ2PSrm },
|
|
{ X86::Int_CVTPD2DQrr, X86::Int_CVTPD2DQrm },
|
|
{ X86::Int_CVTPD2PSrr, X86::Int_CVTPD2PSrm },
|
|
{ X86::Int_CVTPS2DQrr, X86::Int_CVTPS2DQrm },
|
|
{ X86::Int_CVTPS2PDrr, X86::Int_CVTPS2PDrm },
|
|
{ X86::Int_CVTSD2SI64rr,X86::Int_CVTSD2SI64rm },
|
|
{ X86::Int_CVTSD2SIrr, X86::Int_CVTSD2SIrm },
|
|
{ X86::Int_CVTSD2SSrr, X86::Int_CVTSD2SSrm },
|
|
{ X86::Int_CVTSI2SD64rr,X86::Int_CVTSI2SD64rm },
|
|
{ X86::Int_CVTSI2SDrr, X86::Int_CVTSI2SDrm },
|
|
{ X86::Int_CVTSI2SS64rr,X86::Int_CVTSI2SS64rm },
|
|
{ X86::Int_CVTSI2SSrr, X86::Int_CVTSI2SSrm },
|
|
{ X86::Int_CVTSS2SDrr, X86::Int_CVTSS2SDrm },
|
|
{ X86::Int_CVTSS2SI64rr,X86::Int_CVTSS2SI64rm },
|
|
{ X86::Int_CVTSS2SIrr, X86::Int_CVTSS2SIrm },
|
|
{ X86::Int_CVTTPD2DQrr, X86::Int_CVTTPD2DQrm },
|
|
{ X86::Int_CVTTPS2DQrr, X86::Int_CVTTPS2DQrm },
|
|
{ X86::Int_CVTTSD2SI64rr,X86::Int_CVTTSD2SI64rm },
|
|
{ X86::Int_CVTTSD2SIrr, X86::Int_CVTTSD2SIrm },
|
|
{ X86::Int_CVTTSS2SI64rr,X86::Int_CVTTSS2SI64rm },
|
|
{ X86::Int_CVTTSS2SIrr, X86::Int_CVTTSS2SIrm },
|
|
{ X86::Int_UCOMISDrr, X86::Int_UCOMISDrm },
|
|
{ X86::Int_UCOMISSrr, X86::Int_UCOMISSrm },
|
|
{ X86::MOV16rr, X86::MOV16rm },
|
|
{ X86::MOV32rr, X86::MOV32rm },
|
|
{ X86::MOV64rr, X86::MOV64rm },
|
|
{ X86::MOV64toPQIrr, X86::MOV64toPQIrm },
|
|
{ X86::MOV64toSDrr, X86::MOV64toSDrm },
|
|
{ X86::MOV8rr, X86::MOV8rm },
|
|
{ X86::MOVAPDrr, X86::MOVAPDrm },
|
|
{ X86::MOVAPSrr, X86::MOVAPSrm },
|
|
{ X86::MOVDDUPrr, X86::MOVDDUPrm },
|
|
{ X86::MOVDI2PDIrr, X86::MOVDI2PDIrm },
|
|
{ X86::MOVDI2SSrr, X86::MOVDI2SSrm },
|
|
{ X86::MOVSD2PDrr, X86::MOVSD2PDrm },
|
|
{ X86::MOVSDrr, X86::MOVSDrm },
|
|
{ X86::MOVSHDUPrr, X86::MOVSHDUPrm },
|
|
{ X86::MOVSLDUPrr, X86::MOVSLDUPrm },
|
|
{ X86::MOVSS2PSrr, X86::MOVSS2PSrm },
|
|
{ X86::MOVSSrr, X86::MOVSSrm },
|
|
{ X86::MOVSX16rr8, X86::MOVSX16rm8 },
|
|
{ X86::MOVSX32rr16, X86::MOVSX32rm16 },
|
|
{ X86::MOVSX32rr8, X86::MOVSX32rm8 },
|
|
{ X86::MOVSX64rr16, X86::MOVSX64rm16 },
|
|
{ X86::MOVSX64rr32, X86::MOVSX64rm32 },
|
|
{ X86::MOVSX64rr8, X86::MOVSX64rm8 },
|
|
{ X86::MOVUPDrr, X86::MOVUPDrm },
|
|
{ X86::MOVUPSrr, X86::MOVUPSrm },
|
|
{ X86::MOVZX16rr8, X86::MOVZX16rm8 },
|
|
{ X86::MOVZX32rr16, X86::MOVZX32rm16 },
|
|
{ X86::MOVZX32rr8, X86::MOVZX32rm8 },
|
|
{ X86::MOVZX64rr16, X86::MOVZX64rm16 },
|
|
{ X86::MOVZX64rr8, X86::MOVZX64rm8 },
|
|
{ X86::PSHUFDri, X86::PSHUFDmi },
|
|
{ X86::PSHUFHWri, X86::PSHUFHWmi },
|
|
{ X86::PSHUFLWri, X86::PSHUFLWmi },
|
|
{ X86::PsMOVZX64rr32, X86::PsMOVZX64rm32 },
|
|
{ X86::TEST16rr, X86::TEST16rm },
|
|
{ X86::TEST32rr, X86::TEST32rm },
|
|
{ X86::TEST64rr, X86::TEST64rm },
|
|
{ X86::TEST8rr, X86::TEST8rm },
|
|
// FIXME: TEST*rr EAX,EAX ---> CMP [mem], 0
|
|
{ X86::UCOMISDrr, X86::UCOMISDrm },
|
|
{ X86::UCOMISSrr, X86::UCOMISSrm },
|
|
{ X86::XCHG16rr, X86::XCHG16rm },
|
|
{ X86::XCHG32rr, X86::XCHG32rm },
|
|
{ X86::XCHG64rr, X86::XCHG64rm },
|
|
{ X86::XCHG8rr, X86::XCHG8rm }
|
|
};
|
|
ASSERT_SORTED(OpcodeTable);
|
|
OpcodeTablePtr = OpcodeTable;
|
|
OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
|
|
} else if (i == 2) {
|
|
static const TableEntry OpcodeTable[] = {
|
|
{ X86::ADC32rr, X86::ADC32rm },
|
|
{ X86::ADC64rr, X86::ADC64rm },
|
|
{ X86::ADD16rr, X86::ADD16rm },
|
|
{ X86::ADD32rr, X86::ADD32rm },
|
|
{ X86::ADD64rr, X86::ADD64rm },
|
|
{ X86::ADD8rr, X86::ADD8rm },
|
|
{ X86::ADDPDrr, X86::ADDPDrm },
|
|
{ X86::ADDPSrr, X86::ADDPSrm },
|
|
{ X86::ADDSDrr, X86::ADDSDrm },
|
|
{ X86::ADDSSrr, X86::ADDSSrm },
|
|
{ X86::ADDSUBPDrr, X86::ADDSUBPDrm },
|
|
{ X86::ADDSUBPSrr, X86::ADDSUBPSrm },
|
|
{ X86::AND16rr, X86::AND16rm },
|
|
{ X86::AND32rr, X86::AND32rm },
|
|
{ X86::AND64rr, X86::AND64rm },
|
|
{ X86::AND8rr, X86::AND8rm },
|
|
{ X86::ANDNPDrr, X86::ANDNPDrm },
|
|
{ X86::ANDNPSrr, X86::ANDNPSrm },
|
|
{ X86::ANDPDrr, X86::ANDPDrm },
|
|
{ X86::ANDPSrr, X86::ANDPSrm },
|
|
{ X86::CMOVA16rr, X86::CMOVA16rm },
|
|
{ X86::CMOVA32rr, X86::CMOVA32rm },
|
|
{ X86::CMOVA64rr, X86::CMOVA64rm },
|
|
{ X86::CMOVAE16rr, X86::CMOVAE16rm },
|
|
{ X86::CMOVAE32rr, X86::CMOVAE32rm },
|
|
{ X86::CMOVAE64rr, X86::CMOVAE64rm },
|
|
{ X86::CMOVB16rr, X86::CMOVB16rm },
|
|
{ X86::CMOVB32rr, X86::CMOVB32rm },
|
|
{ X86::CMOVB64rr, X86::CMOVB64rm },
|
|
{ X86::CMOVBE16rr, X86::CMOVBE16rm },
|
|
{ X86::CMOVBE32rr, X86::CMOVBE32rm },
|
|
{ X86::CMOVBE64rr, X86::CMOVBE64rm },
|
|
{ X86::CMOVE16rr, X86::CMOVE16rm },
|
|
{ X86::CMOVE32rr, X86::CMOVE32rm },
|
|
{ X86::CMOVE64rr, X86::CMOVE64rm },
|
|
{ X86::CMOVG16rr, X86::CMOVG16rm },
|
|
{ X86::CMOVG32rr, X86::CMOVG32rm },
|
|
{ X86::CMOVG64rr, X86::CMOVG64rm },
|
|
{ X86::CMOVGE16rr, X86::CMOVGE16rm },
|
|
{ X86::CMOVGE32rr, X86::CMOVGE32rm },
|
|
{ X86::CMOVGE64rr, X86::CMOVGE64rm },
|
|
{ X86::CMOVL16rr, X86::CMOVL16rm },
|
|
{ X86::CMOVL32rr, X86::CMOVL32rm },
|
|
{ X86::CMOVL64rr, X86::CMOVL64rm },
|
|
{ X86::CMOVLE16rr, X86::CMOVLE16rm },
|
|
{ X86::CMOVLE32rr, X86::CMOVLE32rm },
|
|
{ X86::CMOVLE64rr, X86::CMOVLE64rm },
|
|
{ X86::CMOVNE16rr, X86::CMOVNE16rm },
|
|
{ X86::CMOVNE32rr, X86::CMOVNE32rm },
|
|
{ X86::CMOVNE64rr, X86::CMOVNE64rm },
|
|
{ X86::CMOVNP16rr, X86::CMOVNP16rm },
|
|
{ X86::CMOVNP32rr, X86::CMOVNP32rm },
|
|
{ X86::CMOVNP64rr, X86::CMOVNP64rm },
|
|
{ X86::CMOVNS16rr, X86::CMOVNS16rm },
|
|
{ X86::CMOVNS32rr, X86::CMOVNS32rm },
|
|
{ X86::CMOVNS64rr, X86::CMOVNS64rm },
|
|
{ X86::CMOVP16rr, X86::CMOVP16rm },
|
|
{ X86::CMOVP32rr, X86::CMOVP32rm },
|
|
{ X86::CMOVP64rr, X86::CMOVP64rm },
|
|
{ X86::CMOVS16rr, X86::CMOVS16rm },
|
|
{ X86::CMOVS32rr, X86::CMOVS32rm },
|
|
{ X86::CMOVS64rr, X86::CMOVS64rm },
|
|
{ X86::DIVPDrr, X86::DIVPDrm },
|
|
{ X86::DIVPSrr, X86::DIVPSrm },
|
|
{ X86::DIVSDrr, X86::DIVSDrm },
|
|
{ X86::DIVSSrr, X86::DIVSSrm },
|
|
{ X86::HADDPDrr, X86::HADDPDrm },
|
|
{ X86::HADDPSrr, X86::HADDPSrm },
|
|
{ X86::HSUBPDrr, X86::HSUBPDrm },
|
|
{ X86::HSUBPSrr, X86::HSUBPSrm },
|
|
{ X86::IMUL16rr, X86::IMUL16rm },
|
|
{ X86::IMUL32rr, X86::IMUL32rm },
|
|
{ X86::MAXPDrr, X86::MAXPDrm },
|
|
{ X86::MAXPDrr_Int, X86::MAXPDrm_Int },
|
|
{ X86::MAXPSrr, X86::MAXPSrm },
|
|
{ X86::MAXPSrr_Int, X86::MAXPSrm_Int },
|
|
{ X86::MAXSDrr, X86::MAXSDrm },
|
|
{ X86::MAXSDrr_Int, X86::MAXSDrm_Int },
|
|
{ X86::MAXSSrr, X86::MAXSSrm },
|
|
{ X86::MAXSSrr_Int, X86::MAXSSrm_Int },
|
|
{ X86::MINPDrr, X86::MINPDrm },
|
|
{ X86::MINPDrr_Int, X86::MINPDrm_Int },
|
|
{ X86::MINPSrr, X86::MINPSrm },
|
|
{ X86::MINPSrr_Int, X86::MINPSrm_Int },
|
|
{ X86::MINSDrr, X86::MINSDrm },
|
|
{ X86::MINSDrr_Int, X86::MINSDrm_Int },
|
|
{ X86::MINSSrr, X86::MINSSrm },
|
|
{ X86::MINSSrr_Int, X86::MINSSrm_Int },
|
|
{ X86::MULPDrr, X86::MULPDrm },
|
|
{ X86::MULPSrr, X86::MULPSrm },
|
|
{ X86::MULSDrr, X86::MULSDrm },
|
|
{ X86::MULSSrr, X86::MULSSrm },
|
|
{ X86::OR16rr, X86::OR16rm },
|
|
{ X86::OR32rr, X86::OR32rm },
|
|
{ X86::OR64rr, X86::OR64rm },
|
|
{ X86::OR8rr, X86::OR8rm },
|
|
{ X86::ORPDrr, X86::ORPDrm },
|
|
{ X86::ORPSrr, X86::ORPSrm },
|
|
{ X86::PACKSSDWrr, X86::PACKSSDWrm },
|
|
{ X86::PACKSSWBrr, X86::PACKSSWBrm },
|
|
{ X86::PACKUSWBrr, X86::PACKUSWBrm },
|
|
{ X86::PADDBrr, X86::PADDBrm },
|
|
{ X86::PADDDrr, X86::PADDDrm },
|
|
{ X86::PADDQrr, X86::PADDQrm },
|
|
{ X86::PADDSBrr, X86::PADDSBrm },
|
|
{ X86::PADDSWrr, X86::PADDSWrm },
|
|
{ X86::PADDWrr, X86::PADDWrm },
|
|
{ X86::PANDNrr, X86::PANDNrm },
|
|
{ X86::PANDrr, X86::PANDrm },
|
|
{ X86::PAVGBrr, X86::PAVGBrm },
|
|
{ X86::PAVGWrr, X86::PAVGWrm },
|
|
{ X86::PCMPEQBrr, X86::PCMPEQBrm },
|
|
{ X86::PCMPEQDrr, X86::PCMPEQDrm },
|
|
{ X86::PCMPEQWrr, X86::PCMPEQWrm },
|
|
{ X86::PCMPGTBrr, X86::PCMPGTBrm },
|
|
{ X86::PCMPGTDrr, X86::PCMPGTDrm },
|
|
{ X86::PCMPGTWrr, X86::PCMPGTWrm },
|
|
{ X86::PINSRWrri, X86::PINSRWrmi },
|
|
{ X86::PMADDWDrr, X86::PMADDWDrm },
|
|
{ X86::PMAXSWrr, X86::PMAXSWrm },
|
|
{ X86::PMAXUBrr, X86::PMAXUBrm },
|
|
{ X86::PMINSWrr, X86::PMINSWrm },
|
|
{ X86::PMINUBrr, X86::PMINUBrm },
|
|
{ X86::PMULHUWrr, X86::PMULHUWrm },
|
|
{ X86::PMULHWrr, X86::PMULHWrm },
|
|
{ X86::PMULLWrr, X86::PMULLWrm },
|
|
{ X86::PMULUDQrr, X86::PMULUDQrm },
|
|
{ X86::PORrr, X86::PORrm },
|
|
{ X86::PSADBWrr, X86::PSADBWrm },
|
|
{ X86::PSLLDrr, X86::PSLLDrm },
|
|
{ X86::PSLLQrr, X86::PSLLQrm },
|
|
{ X86::PSLLWrr, X86::PSLLWrm },
|
|
{ X86::PSRADrr, X86::PSRADrm },
|
|
{ X86::PSRAWrr, X86::PSRAWrm },
|
|
{ X86::PSRLDrr, X86::PSRLDrm },
|
|
{ X86::PSRLQrr, X86::PSRLQrm },
|
|
{ X86::PSRLWrr, X86::PSRLWrm },
|
|
{ X86::PSUBBrr, X86::PSUBBrm },
|
|
{ X86::PSUBDrr, X86::PSUBDrm },
|
|
{ X86::PSUBSBrr, X86::PSUBSBrm },
|
|
{ X86::PSUBSWrr, X86::PSUBSWrm },
|
|
{ X86::PSUBWrr, X86::PSUBWrm },
|
|
{ X86::PUNPCKHBWrr, X86::PUNPCKHBWrm },
|
|
{ X86::PUNPCKHDQrr, X86::PUNPCKHDQrm },
|
|
{ X86::PUNPCKHQDQrr, X86::PUNPCKHQDQrm },
|
|
{ X86::PUNPCKHWDrr, X86::PUNPCKHWDrm },
|
|
{ X86::PUNPCKLBWrr, X86::PUNPCKLBWrm },
|
|
{ X86::PUNPCKLDQrr, X86::PUNPCKLDQrm },
|
|
{ X86::PUNPCKLQDQrr, X86::PUNPCKLQDQrm },
|
|
{ X86::PUNPCKLWDrr, X86::PUNPCKLWDrm },
|
|
{ X86::PXORrr, X86::PXORrm },
|
|
{ X86::RCPPSr, X86::RCPPSm },
|
|
{ X86::RCPPSr_Int, X86::RCPPSm_Int },
|
|
{ X86::RSQRTPSr, X86::RSQRTPSm },
|
|
{ X86::RSQRTPSr_Int, X86::RSQRTPSm_Int },
|
|
{ X86::RSQRTSSr, X86::RSQRTSSm },
|
|
{ X86::RSQRTSSr_Int, X86::RSQRTSSm_Int },
|
|
{ X86::SBB32rr, X86::SBB32rm },
|
|
{ X86::SBB64rr, X86::SBB64rm },
|
|
{ X86::SHUFPDrri, X86::SHUFPDrmi },
|
|
{ X86::SHUFPSrri, X86::SHUFPSrmi },
|
|
{ X86::SQRTPDr, X86::SQRTPDm },
|
|
{ X86::SQRTPDr_Int, X86::SQRTPDm_Int },
|
|
{ X86::SQRTPSr, X86::SQRTPSm },
|
|
{ X86::SQRTPSr_Int, X86::SQRTPSm_Int },
|
|
{ X86::SQRTSDr, X86::SQRTSDm },
|
|
{ X86::SQRTSDr_Int, X86::SQRTSDm_Int },
|
|
{ X86::SQRTSSr, X86::SQRTSSm },
|
|
{ X86::SQRTSSr_Int, X86::SQRTSSm_Int },
|
|
{ X86::SUB16rr, X86::SUB16rm },
|
|
{ X86::SUB32rr, X86::SUB32rm },
|
|
{ X86::SUB64rr, X86::SUB64rm },
|
|
{ X86::SUB8rr, X86::SUB8rm },
|
|
{ X86::SUBPDrr, X86::SUBPDrm },
|
|
{ X86::SUBPSrr, X86::SUBPSrm },
|
|
{ X86::SUBSDrr, X86::SUBSDrm },
|
|
{ X86::SUBSSrr, X86::SUBSSrm },
|
|
// FIXME: TEST*rr -> swapped operand of TEST*mr.
|
|
{ X86::UNPCKHPDrr, X86::UNPCKHPDrm },
|
|
{ X86::UNPCKHPSrr, X86::UNPCKHPSrm },
|
|
{ X86::UNPCKLPDrr, X86::UNPCKLPDrm },
|
|
{ X86::UNPCKLPSrr, X86::UNPCKLPSrm },
|
|
{ X86::XOR16rr, X86::XOR16rm },
|
|
{ X86::XOR32rr, X86::XOR32rm },
|
|
{ X86::XOR64rr, X86::XOR64rm },
|
|
{ X86::XOR8rr, X86::XOR8rm },
|
|
{ X86::XORPDrr, X86::XORPDrm },
|
|
{ X86::XORPSrr, X86::XORPSrm }
|
|
};
|
|
ASSERT_SORTED(OpcodeTable);
|
|
OpcodeTablePtr = OpcodeTable;
|
|
OpcodeTableSize = ARRAY_SIZE(OpcodeTable);
|
|
}
|
|
|
|
// If table selected...
|
|
if (OpcodeTablePtr) {
|
|
// Find the Opcode to fuse
|
|
unsigned fromOpcode = MI->getOpcode();
|
|
// Lookup fromOpcode in table
|
|
if (const TableEntry *Entry = TableLookup(OpcodeTablePtr, OpcodeTableSize,
|
|
fromOpcode)) {
|
|
if (isTwoAddrFold)
|
|
NewMI = FuseTwoAddrInst(Entry->to, FrameIndex, MI, TII);
|
|
else
|
|
NewMI = FuseInst(Entry->to, i, FrameIndex, MI, TII);
|
|
NewMI->copyKillDeadInfo(MI);
|
|
return NewMI;
|
|
}
|
|
}
|
|
|
|
// No fusion
|
|
if (PrintFailedFusing)
|
|
cerr << "We failed to fuse ("
|
|
<< ((i == 1) ? "r" : "s") << "): " << *MI;
|
|
return NULL;
|
|
}
|
|
|
|
|
|
const unsigned *X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF)
|
|
const {
|
|
static const unsigned CalleeSavedRegs32Bit[] = {
|
|
X86::ESI, X86::EDI, X86::EBX, X86::EBP, 0
|
|
};
|
|
|
|
static const unsigned CalleeSavedRegs32EHRet[] = {
|
|
X86::EAX, X86::EDX, X86::ESI, X86::EDI, X86::EBX, X86::EBP, 0
|
|
};
|
|
|
|
static const unsigned CalleeSavedRegs64Bit[] = {
|
|
X86::RBX, X86::R12, X86::R13, X86::R14, X86::R15, X86::RBP, 0
|
|
};
|
|
|
|
if (Is64Bit)
|
|
return CalleeSavedRegs64Bit;
|
|
else {
|
|
if (MF) {
|
|
MachineFrameInfo *MFI = MF->getFrameInfo();
|
|
MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
|
|
if (MMI && MMI->callsEHReturn())
|
|
return CalleeSavedRegs32EHRet;
|
|
}
|
|
return CalleeSavedRegs32Bit;
|
|
}
|
|
}
|
|
|
|
const TargetRegisterClass* const*
|
|
X86RegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
|
|
static const TargetRegisterClass * const CalleeSavedRegClasses32Bit[] = {
|
|
&X86::GR32RegClass, &X86::GR32RegClass,
|
|
&X86::GR32RegClass, &X86::GR32RegClass, 0
|
|
};
|
|
static const TargetRegisterClass * const CalleeSavedRegClasses32EHRet[] = {
|
|
&X86::GR32RegClass, &X86::GR32RegClass,
|
|
&X86::GR32RegClass, &X86::GR32RegClass,
|
|
&X86::GR32RegClass, &X86::GR32RegClass, 0
|
|
};
|
|
static const TargetRegisterClass * const CalleeSavedRegClasses64Bit[] = {
|
|
&X86::GR64RegClass, &X86::GR64RegClass,
|
|
&X86::GR64RegClass, &X86::GR64RegClass,
|
|
&X86::GR64RegClass, &X86::GR64RegClass, 0
|
|
};
|
|
|
|
if (Is64Bit)
|
|
return CalleeSavedRegClasses64Bit;
|
|
else {
|
|
if (MF) {
|
|
MachineFrameInfo *MFI = MF->getFrameInfo();
|
|
MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
|
|
if (MMI && MMI->callsEHReturn())
|
|
return CalleeSavedRegClasses32EHRet;
|
|
}
|
|
return CalleeSavedRegClasses32Bit;
|
|
}
|
|
|
|
}
|
|
|
|
BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
|
|
BitVector Reserved(getNumRegs());
|
|
Reserved.set(X86::RSP);
|
|
Reserved.set(X86::ESP);
|
|
Reserved.set(X86::SP);
|
|
Reserved.set(X86::SPL);
|
|
if (hasFP(MF)) {
|
|
Reserved.set(X86::RBP);
|
|
Reserved.set(X86::EBP);
|
|
Reserved.set(X86::BP);
|
|
Reserved.set(X86::BPL);
|
|
}
|
|
return Reserved;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Stack Frame Processing methods
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// hasFP - Return true if the specified function should have a dedicated frame
|
|
// pointer register. This is true if the function has variable sized allocas or
|
|
// if frame pointer elimination is disabled.
|
|
//
|
|
bool X86RegisterInfo::hasFP(const MachineFunction &MF) const {
|
|
MachineFrameInfo *MFI = MF.getFrameInfo();
|
|
MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
|
|
|
|
return (NoFramePointerElim ||
|
|
MF.getFrameInfo()->hasVarSizedObjects() ||
|
|
MF.getInfo<X86MachineFunctionInfo>()->getForceFramePointer() ||
|
|
(MMI && MMI->callsUnwindInit()));
|
|
}
|
|
|
|
void X86RegisterInfo::
|
|
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator I) const {
|
|
if (hasFP(MF)) {
|
|
// If we have a frame pointer, turn the adjcallstackup instruction into a
|
|
// 'sub ESP, <amt>' and the adjcallstackdown instruction into 'add ESP,
|
|
// <amt>'
|
|
MachineInstr *Old = I;
|
|
uint64_t Amount = Old->getOperand(0).getImm();
|
|
if (Amount != 0) {
|
|
// 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();
|
|
Amount = (Amount+Align-1)/Align*Align;
|
|
|
|
MachineInstr *New = 0;
|
|
if (Old->getOpcode() == X86::ADJCALLSTACKDOWN) {
|
|
New=BuildMI(TII.get(Is64Bit ? X86::SUB64ri32 : X86::SUB32ri), StackPtr)
|
|
.addReg(StackPtr).addImm(Amount);
|
|
} else {
|
|
assert(Old->getOpcode() == X86::ADJCALLSTACKUP);
|
|
// factor out the amount the callee already popped.
|
|
uint64_t CalleeAmt = Old->getOperand(1).getImm();
|
|
Amount -= CalleeAmt;
|
|
if (Amount) {
|
|
unsigned Opc = (Amount < 128) ?
|
|
(Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
|
|
(Is64Bit ? X86::ADD64ri32 : X86::ADD32ri);
|
|
New = BuildMI(TII.get(Opc), StackPtr)
|
|
.addReg(StackPtr).addImm(Amount);
|
|
}
|
|
}
|
|
|
|
// Replace the pseudo instruction with a new instruction...
|
|
if (New) MBB.insert(I, New);
|
|
}
|
|
} else if (I->getOpcode() == X86::ADJCALLSTACKUP) {
|
|
// If we are performing frame pointer elimination and if the callee pops
|
|
// something off the stack pointer, add it back. We do this until we have
|
|
// more advanced stack pointer tracking ability.
|
|
if (uint64_t CalleeAmt = I->getOperand(1).getImm()) {
|
|
unsigned Opc = (CalleeAmt < 128) ?
|
|
(Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
|
|
(Is64Bit ? X86::SUB64ri32 : X86::SUB32ri);
|
|
MachineInstr *New =
|
|
BuildMI(TII.get(Opc), StackPtr).addReg(StackPtr).addImm(CalleeAmt);
|
|
MBB.insert(I, New);
|
|
}
|
|
}
|
|
|
|
MBB.erase(I);
|
|
}
|
|
|
|
void X86RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
|
|
int SPAdj, RegScavenger *RS) const{
|
|
assert(SPAdj == 0 && "Unexpected");
|
|
|
|
unsigned i = 0;
|
|
MachineInstr &MI = *II;
|
|
MachineFunction &MF = *MI.getParent()->getParent();
|
|
while (!MI.getOperand(i).isFrameIndex()) {
|
|
++i;
|
|
assert(i < MI.getNumOperands() && "Instr doesn't have FrameIndex operand!");
|
|
}
|
|
|
|
int FrameIndex = MI.getOperand(i).getFrameIndex();
|
|
// This must be part of a four operand memory reference. Replace the
|
|
// FrameIndex with base register with EBP. Add an offset to the offset.
|
|
MI.getOperand(i).ChangeToRegister(hasFP(MF) ? FramePtr : StackPtr, false);
|
|
|
|
// Now add the frame object offset to the offset from EBP.
|
|
int64_t Offset = MF.getFrameInfo()->getObjectOffset(FrameIndex) +
|
|
MI.getOperand(i+3).getImm()+SlotSize;
|
|
|
|
if (!hasFP(MF))
|
|
Offset += MF.getFrameInfo()->getStackSize();
|
|
else
|
|
Offset += SlotSize; // Skip the saved EBP
|
|
|
|
MI.getOperand(i+3).ChangeToImmediate(Offset);
|
|
}
|
|
|
|
void
|
|
X86RegisterInfo::processFunctionBeforeFrameFinalized(MachineFunction &MF) const{
|
|
if (hasFP(MF)) {
|
|
// Create a frame entry for the EBP register that must be saved.
|
|
int FrameIdx = MF.getFrameInfo()->CreateFixedObject(SlotSize,
|
|
(int)SlotSize * -2);
|
|
assert(FrameIdx == MF.getFrameInfo()->getObjectIndexBegin() &&
|
|
"Slot for EBP register must be last in order to be found!");
|
|
}
|
|
}
|
|
|
|
/// emitSPUpdate - Emit a series of instructions to increment / decrement the
|
|
/// stack pointer by a constant value.
|
|
static
|
|
void emitSPUpdate(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI,
|
|
unsigned StackPtr, int64_t NumBytes, bool Is64Bit,
|
|
const TargetInstrInfo &TII) {
|
|
bool isSub = NumBytes < 0;
|
|
uint64_t Offset = isSub ? -NumBytes : NumBytes;
|
|
unsigned Opc = isSub
|
|
? ((Offset < 128) ?
|
|
(Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
|
|
(Is64Bit ? X86::SUB64ri32 : X86::SUB32ri))
|
|
: ((Offset < 128) ?
|
|
(Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
|
|
(Is64Bit ? X86::ADD64ri32 : X86::ADD32ri));
|
|
uint64_t Chunk = (1LL << 31) - 1;
|
|
|
|
while (Offset) {
|
|
uint64_t ThisVal = (Offset > Chunk) ? Chunk : Offset;
|
|
BuildMI(MBB, MBBI, TII.get(Opc), StackPtr).addReg(StackPtr).addImm(ThisVal);
|
|
Offset -= ThisVal;
|
|
}
|
|
}
|
|
|
|
void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
|
|
MachineBasicBlock &MBB = MF.front(); // Prolog goes in entry BB
|
|
MachineFrameInfo *MFI = MF.getFrameInfo();
|
|
unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment();
|
|
const Function* Fn = MF.getFunction();
|
|
const X86Subtarget* Subtarget = &MF.getTarget().getSubtarget<X86Subtarget>();
|
|
MachineModuleInfo *MMI = MFI->getMachineModuleInfo();
|
|
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
|
|
MachineBasicBlock::iterator MBBI = MBB.begin();
|
|
|
|
// Prepare for frame info.
|
|
unsigned FrameLabelId = 0, StartLabelId = 0;
|
|
|
|
// Get the number of bytes to allocate from the FrameInfo
|
|
uint64_t StackSize = MFI->getStackSize();
|
|
uint64_t NumBytes = StackSize - X86FI->getCalleeSavedFrameSize();
|
|
|
|
if (MMI && MMI->needsFrameInfo()) {
|
|
// Mark function start
|
|
StartLabelId = MMI->NextLabelID();
|
|
BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(StartLabelId);
|
|
}
|
|
|
|
if (hasFP(MF)) {
|
|
// Get the offset of the stack slot for the EBP register... which is
|
|
// guaranteed to be the last slot by processFunctionBeforeFrameFinalized.
|
|
// Update the frame offset adjustment.
|
|
MFI->setOffsetAdjustment(SlotSize-NumBytes);
|
|
|
|
// Save EBP into the appropriate stack slot...
|
|
BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::PUSH64r : X86::PUSH32r))
|
|
.addReg(FramePtr);
|
|
NumBytes -= SlotSize;
|
|
|
|
if (MMI && MMI->needsFrameInfo()) {
|
|
// Mark effective beginning of when frame pointer becomes valid.
|
|
FrameLabelId = MMI->NextLabelID();
|
|
BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(FrameLabelId);
|
|
}
|
|
|
|
// Update EBP with the new base value...
|
|
BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr), FramePtr)
|
|
.addReg(StackPtr);
|
|
}
|
|
|
|
unsigned ReadyLabelId = 0;
|
|
if (MMI && MMI->needsFrameInfo()) {
|
|
// Mark effective beginning of when frame pointer is ready.
|
|
ReadyLabelId = MMI->NextLabelID();
|
|
BuildMI(MBB, MBBI, TII.get(X86::LABEL)).addImm(ReadyLabelId);
|
|
}
|
|
|
|
// Skip the callee-saved push instructions.
|
|
while (MBBI != MBB.end() &&
|
|
(MBBI->getOpcode() == X86::PUSH32r ||
|
|
MBBI->getOpcode() == X86::PUSH64r))
|
|
++MBBI;
|
|
|
|
if (NumBytes) { // adjust stack pointer: ESP -= numbytes
|
|
if (NumBytes >= 4096 && Subtarget->isTargetCygMing()) {
|
|
// Check, whether EAX is livein for this function
|
|
bool isEAXAlive = false;
|
|
for (MachineFunction::livein_iterator II = MF.livein_begin(),
|
|
EE = MF.livein_end(); (II != EE) && !isEAXAlive; ++II) {
|
|
unsigned Reg = II->first;
|
|
isEAXAlive = (Reg == X86::EAX || Reg == X86::AX ||
|
|
Reg == X86::AH || Reg == X86::AL);
|
|
}
|
|
|
|
// Function prologue calls _alloca to probe the stack when allocating
|
|
// more than 4k bytes in one go. Touching the stack at 4K increments is
|
|
// necessary to ensure that the guard pages used by the OS virtual memory
|
|
// manager are allocated in correct sequence.
|
|
if (!isEAXAlive) {
|
|
BuildMI(MBB, MBBI, TII.get(X86::MOV32ri), X86::EAX).addImm(NumBytes);
|
|
BuildMI(MBB, MBBI, TII.get(X86::CALLpcrel32))
|
|
.addExternalSymbol("_alloca");
|
|
} else {
|
|
// Save EAX
|
|
BuildMI(MBB, MBBI, TII.get(X86::PUSH32r), X86::EAX);
|
|
// Allocate NumBytes-4 bytes on stack. We'll also use 4 already
|
|
// allocated bytes for EAX.
|
|
BuildMI(MBB, MBBI, TII.get(X86::MOV32ri), X86::EAX).addImm(NumBytes-4);
|
|
BuildMI(MBB, MBBI, TII.get(X86::CALLpcrel32))
|
|
.addExternalSymbol("_alloca");
|
|
// Restore EAX
|
|
MachineInstr *MI = addRegOffset(BuildMI(TII.get(X86::MOV32rm),X86::EAX),
|
|
StackPtr, NumBytes-4);
|
|
MBB.insert(MBBI, MI);
|
|
}
|
|
} else {
|
|
emitSPUpdate(MBB, MBBI, StackPtr, -(int64_t)NumBytes, Is64Bit, TII);
|
|
}
|
|
}
|
|
|
|
if (MMI && MMI->needsFrameInfo()) {
|
|
std::vector<MachineMove> &Moves = MMI->getFrameMoves();
|
|
const TargetAsmInfo *TAI = MF.getTarget().getTargetAsmInfo();
|
|
|
|
// Calculate amount of bytes used for return address storing
|
|
int stackGrowth =
|
|
(MF.getTarget().getFrameInfo()->getStackGrowthDirection() ==
|
|
TargetFrameInfo::StackGrowsUp ?
|
|
TAI->getAddressSize() : -TAI->getAddressSize());
|
|
|
|
if (StackSize) {
|
|
// Show update of SP.
|
|
if (hasFP(MF)) {
|
|
// Adjust SP
|
|
MachineLocation SPDst(MachineLocation::VirtualFP);
|
|
MachineLocation SPSrc(MachineLocation::VirtualFP, 2*stackGrowth);
|
|
Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
|
|
} else {
|
|
MachineLocation SPDst(MachineLocation::VirtualFP);
|
|
MachineLocation SPSrc(MachineLocation::VirtualFP, -StackSize+stackGrowth);
|
|
Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
|
|
}
|
|
} else {
|
|
//FIXME: Verify & implement for FP
|
|
MachineLocation SPDst(StackPtr);
|
|
MachineLocation SPSrc(StackPtr, stackGrowth);
|
|
Moves.push_back(MachineMove(FrameLabelId, SPDst, SPSrc));
|
|
}
|
|
|
|
// Add callee saved registers to move list.
|
|
const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
|
|
for (unsigned I = 0, E = CSI.size(); I != E; ++I) {
|
|
int64_t Offset = MFI->getObjectOffset(CSI[I].getFrameIdx());
|
|
unsigned Reg = CSI[I].getReg();
|
|
MachineLocation CSDst(MachineLocation::VirtualFP, Offset);
|
|
MachineLocation CSSrc(Reg);
|
|
Moves.push_back(MachineMove(FrameLabelId, CSDst, CSSrc));
|
|
}
|
|
|
|
if (hasFP(MF)) {
|
|
// Save FP
|
|
MachineLocation FPDst(MachineLocation::VirtualFP, 2*stackGrowth);
|
|
MachineLocation FPSrc(FramePtr);
|
|
Moves.push_back(MachineMove(ReadyLabelId, FPDst, FPSrc));
|
|
}
|
|
|
|
MachineLocation FPDst(hasFP(MF) ? FramePtr : StackPtr);
|
|
MachineLocation FPSrc(MachineLocation::VirtualFP);
|
|
Moves.push_back(MachineMove(ReadyLabelId, FPDst, FPSrc));
|
|
}
|
|
|
|
// If it's main() on Cygwin\Mingw32 we should align stack as well
|
|
if (Fn->hasExternalLinkage() && Fn->getName() == "main" &&
|
|
Subtarget->isTargetCygMing()) {
|
|
BuildMI(MBB, MBBI, TII.get(X86::AND32ri), X86::ESP)
|
|
.addReg(X86::ESP).addImm(-Align);
|
|
|
|
// Probe the stack
|
|
BuildMI(MBB, MBBI, TII.get(X86::MOV32ri), X86::EAX).addImm(Align);
|
|
BuildMI(MBB, MBBI, TII.get(X86::CALLpcrel32)).addExternalSymbol("_alloca");
|
|
}
|
|
}
|
|
|
|
void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
|
|
MachineBasicBlock &MBB) const {
|
|
const MachineFrameInfo *MFI = MF.getFrameInfo();
|
|
X86MachineFunctionInfo *X86FI = MF.getInfo<X86MachineFunctionInfo>();
|
|
MachineBasicBlock::iterator MBBI = prior(MBB.end());
|
|
unsigned RetOpcode = MBBI->getOpcode();
|
|
|
|
switch (RetOpcode) {
|
|
case X86::RET:
|
|
case X86::RETI:
|
|
case X86::EH_RETURN:
|
|
case X86::TAILJMPd:
|
|
case X86::TAILJMPr:
|
|
case X86::TAILJMPm: break; // These are ok
|
|
default:
|
|
assert(0 && "Can only insert epilog into returning blocks");
|
|
}
|
|
|
|
// Get the number of bytes to allocate from the FrameInfo
|
|
uint64_t StackSize = MFI->getStackSize();
|
|
unsigned CSSize = X86FI->getCalleeSavedFrameSize();
|
|
uint64_t NumBytes = StackSize - CSSize;
|
|
|
|
if (hasFP(MF)) {
|
|
// pop EBP.
|
|
BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::POP64r : X86::POP32r), FramePtr);
|
|
NumBytes -= SlotSize;
|
|
}
|
|
|
|
// Skip the callee-saved pop instructions.
|
|
while (MBBI != MBB.begin()) {
|
|
MachineBasicBlock::iterator PI = prior(MBBI);
|
|
if (PI->getOpcode() != X86::POP32r && PI->getOpcode() != X86::POP64r)
|
|
break;
|
|
--MBBI;
|
|
}
|
|
|
|
// If dynamic alloca is used, then reset esp to point to the last
|
|
// callee-saved slot before popping them off!
|
|
if (MFI->hasVarSizedObjects()) {
|
|
unsigned Opc = Is64Bit ? X86::LEA64r : X86::LEA32r;
|
|
MachineInstr *MI = addRegOffset(BuildMI(TII.get(Opc), StackPtr),
|
|
FramePtr, -CSSize);
|
|
MBB.insert(MBBI, MI);
|
|
NumBytes = 0;
|
|
}
|
|
|
|
if (NumBytes) { // adjust stack pointer back: ESP += numbytes
|
|
// If there is an ADD32ri or SUB32ri of ESP immediately before this
|
|
// instruction, merge the two instructions.
|
|
if (MBBI != MBB.begin()) {
|
|
MachineBasicBlock::iterator PI = prior(MBBI);
|
|
unsigned Opc = PI->getOpcode();
|
|
if ((Opc == X86::ADD64ri32 || Opc == X86::ADD64ri8 ||
|
|
Opc == X86::ADD32ri || Opc == X86::ADD32ri8) &&
|
|
PI->getOperand(0).getReg() == StackPtr) {
|
|
NumBytes += PI->getOperand(2).getImm();
|
|
MBB.erase(PI);
|
|
} else if ((Opc == X86::SUB64ri32 || Opc == X86::SUB64ri8 ||
|
|
Opc == X86::SUB32ri || Opc == X86::SUB32ri8) &&
|
|
PI->getOperand(0).getReg() == StackPtr) {
|
|
NumBytes -= PI->getOperand(2).getImm();
|
|
MBB.erase(PI);
|
|
}
|
|
}
|
|
|
|
if (NumBytes)
|
|
emitSPUpdate(MBB, MBBI, StackPtr, NumBytes, Is64Bit, TII);
|
|
}
|
|
|
|
// We're returning from function via eh_return.
|
|
if (RetOpcode == X86::EH_RETURN) {
|
|
MBBI = prior(MBB.end());
|
|
MachineOperand &DestAddr = MBBI->getOperand(0);
|
|
assert(DestAddr.isReg() && "Offset should be in register!");
|
|
BuildMI(MBB, MBBI, TII.get(Is64Bit ? X86::MOV64rr : X86::MOV32rr),StackPtr).
|
|
addReg(DestAddr.getReg());
|
|
}
|
|
}
|
|
|
|
unsigned X86RegisterInfo::getRARegister() const {
|
|
if (Is64Bit)
|
|
return X86::RIP; // Should have dwarf #16
|
|
else
|
|
return X86::EIP; // Should have dwarf #8
|
|
}
|
|
|
|
unsigned X86RegisterInfo::getFrameRegister(MachineFunction &MF) const {
|
|
return hasFP(MF) ? FramePtr : StackPtr;
|
|
}
|
|
|
|
void X86RegisterInfo::getInitialFrameState(std::vector<MachineMove> &Moves)
|
|
const {
|
|
// Calculate amount of bytes used for return address storing
|
|
int stackGrowth = (Is64Bit ? -8 : -4);
|
|
|
|
// Initial state of the frame pointer is esp+4.
|
|
MachineLocation Dst(MachineLocation::VirtualFP);
|
|
MachineLocation Src(StackPtr, stackGrowth);
|
|
Moves.push_back(MachineMove(0, Dst, Src));
|
|
|
|
// Add return address to move list
|
|
MachineLocation CSDst(StackPtr, stackGrowth);
|
|
MachineLocation CSSrc(getRARegister());
|
|
Moves.push_back(MachineMove(0, CSDst, CSSrc));
|
|
}
|
|
|
|
unsigned X86RegisterInfo::getEHExceptionRegister() const {
|
|
assert(0 && "What is the exception register");
|
|
return 0;
|
|
}
|
|
|
|
unsigned X86RegisterInfo::getEHHandlerRegister() const {
|
|
assert(0 && "What is the exception handler register");
|
|
return 0;
|
|
}
|
|
|
|
namespace llvm {
|
|
unsigned getX86SubSuperRegister(unsigned Reg, MVT::ValueType VT, bool High) {
|
|
switch (VT) {
|
|
default: return Reg;
|
|
case MVT::i8:
|
|
if (High) {
|
|
switch (Reg) {
|
|
default: return 0;
|
|
case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX:
|
|
return X86::AH;
|
|
case X86::DH: case X86::DL: case X86::DX: case X86::EDX: case X86::RDX:
|
|
return X86::DH;
|
|
case X86::CH: case X86::CL: case X86::CX: case X86::ECX: case X86::RCX:
|
|
return X86::CH;
|
|
case X86::BH: case X86::BL: case X86::BX: case X86::EBX: case X86::RBX:
|
|
return X86::BH;
|
|
}
|
|
} else {
|
|
switch (Reg) {
|
|
default: return 0;
|
|
case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX:
|
|
return X86::AL;
|
|
case X86::DH: case X86::DL: case X86::DX: case X86::EDX: case X86::RDX:
|
|
return X86::DL;
|
|
case X86::CH: case X86::CL: case X86::CX: case X86::ECX: case X86::RCX:
|
|
return X86::CL;
|
|
case X86::BH: case X86::BL: case X86::BX: case X86::EBX: case X86::RBX:
|
|
return X86::BL;
|
|
case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI:
|
|
return X86::SIL;
|
|
case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI:
|
|
return X86::DIL;
|
|
case X86::BPL: case X86::BP: case X86::EBP: case X86::RBP:
|
|
return X86::BPL;
|
|
case X86::SPL: case X86::SP: case X86::ESP: case X86::RSP:
|
|
return X86::SPL;
|
|
case X86::R8B: case X86::R8W: case X86::R8D: case X86::R8:
|
|
return X86::R8B;
|
|
case X86::R9B: case X86::R9W: case X86::R9D: case X86::R9:
|
|
return X86::R9B;
|
|
case X86::R10B: case X86::R10W: case X86::R10D: case X86::R10:
|
|
return X86::R10B;
|
|
case X86::R11B: case X86::R11W: case X86::R11D: case X86::R11:
|
|
return X86::R11B;
|
|
case X86::R12B: case X86::R12W: case X86::R12D: case X86::R12:
|
|
return X86::R12B;
|
|
case X86::R13B: case X86::R13W: case X86::R13D: case X86::R13:
|
|
return X86::R13B;
|
|
case X86::R14B: case X86::R14W: case X86::R14D: case X86::R14:
|
|
return X86::R14B;
|
|
case X86::R15B: case X86::R15W: case X86::R15D: case X86::R15:
|
|
return X86::R15B;
|
|
}
|
|
}
|
|
case MVT::i16:
|
|
switch (Reg) {
|
|
default: return Reg;
|
|
case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX:
|
|
return X86::AX;
|
|
case X86::DH: case X86::DL: case X86::DX: case X86::EDX: case X86::RDX:
|
|
return X86::DX;
|
|
case X86::CH: case X86::CL: case X86::CX: case X86::ECX: case X86::RCX:
|
|
return X86::CX;
|
|
case X86::BH: case X86::BL: case X86::BX: case X86::EBX: case X86::RBX:
|
|
return X86::BX;
|
|
case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI:
|
|
return X86::SI;
|
|
case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI:
|
|
return X86::DI;
|
|
case X86::BPL: case X86::BP: case X86::EBP: case X86::RBP:
|
|
return X86::BP;
|
|
case X86::SPL: case X86::SP: case X86::ESP: case X86::RSP:
|
|
return X86::SP;
|
|
case X86::R8B: case X86::R8W: case X86::R8D: case X86::R8:
|
|
return X86::R8W;
|
|
case X86::R9B: case X86::R9W: case X86::R9D: case X86::R9:
|
|
return X86::R9W;
|
|
case X86::R10B: case X86::R10W: case X86::R10D: case X86::R10:
|
|
return X86::R10W;
|
|
case X86::R11B: case X86::R11W: case X86::R11D: case X86::R11:
|
|
return X86::R11W;
|
|
case X86::R12B: case X86::R12W: case X86::R12D: case X86::R12:
|
|
return X86::R12W;
|
|
case X86::R13B: case X86::R13W: case X86::R13D: case X86::R13:
|
|
return X86::R13W;
|
|
case X86::R14B: case X86::R14W: case X86::R14D: case X86::R14:
|
|
return X86::R14W;
|
|
case X86::R15B: case X86::R15W: case X86::R15D: case X86::R15:
|
|
return X86::R15W;
|
|
}
|
|
case MVT::i32:
|
|
switch (Reg) {
|
|
default: return Reg;
|
|
case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX:
|
|
return X86::EAX;
|
|
case X86::DH: case X86::DL: case X86::DX: case X86::EDX: case X86::RDX:
|
|
return X86::EDX;
|
|
case X86::CH: case X86::CL: case X86::CX: case X86::ECX: case X86::RCX:
|
|
return X86::ECX;
|
|
case X86::BH: case X86::BL: case X86::BX: case X86::EBX: case X86::RBX:
|
|
return X86::EBX;
|
|
case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI:
|
|
return X86::ESI;
|
|
case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI:
|
|
return X86::EDI;
|
|
case X86::BPL: case X86::BP: case X86::EBP: case X86::RBP:
|
|
return X86::EBP;
|
|
case X86::SPL: case X86::SP: case X86::ESP: case X86::RSP:
|
|
return X86::ESP;
|
|
case X86::R8B: case X86::R8W: case X86::R8D: case X86::R8:
|
|
return X86::R8D;
|
|
case X86::R9B: case X86::R9W: case X86::R9D: case X86::R9:
|
|
return X86::R9D;
|
|
case X86::R10B: case X86::R10W: case X86::R10D: case X86::R10:
|
|
return X86::R10D;
|
|
case X86::R11B: case X86::R11W: case X86::R11D: case X86::R11:
|
|
return X86::R11D;
|
|
case X86::R12B: case X86::R12W: case X86::R12D: case X86::R12:
|
|
return X86::R12D;
|
|
case X86::R13B: case X86::R13W: case X86::R13D: case X86::R13:
|
|
return X86::R13D;
|
|
case X86::R14B: case X86::R14W: case X86::R14D: case X86::R14:
|
|
return X86::R14D;
|
|
case X86::R15B: case X86::R15W: case X86::R15D: case X86::R15:
|
|
return X86::R15D;
|
|
}
|
|
case MVT::i64:
|
|
switch (Reg) {
|
|
default: return Reg;
|
|
case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX:
|
|
return X86::RAX;
|
|
case X86::DH: case X86::DL: case X86::DX: case X86::EDX: case X86::RDX:
|
|
return X86::RDX;
|
|
case X86::CH: case X86::CL: case X86::CX: case X86::ECX: case X86::RCX:
|
|
return X86::RCX;
|
|
case X86::BH: case X86::BL: case X86::BX: case X86::EBX: case X86::RBX:
|
|
return X86::RBX;
|
|
case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI:
|
|
return X86::RSI;
|
|
case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI:
|
|
return X86::RDI;
|
|
case X86::BPL: case X86::BP: case X86::EBP: case X86::RBP:
|
|
return X86::RBP;
|
|
case X86::SPL: case X86::SP: case X86::ESP: case X86::RSP:
|
|
return X86::RSP;
|
|
case X86::R8B: case X86::R8W: case X86::R8D: case X86::R8:
|
|
return X86::R8;
|
|
case X86::R9B: case X86::R9W: case X86::R9D: case X86::R9:
|
|
return X86::R9;
|
|
case X86::R10B: case X86::R10W: case X86::R10D: case X86::R10:
|
|
return X86::R10;
|
|
case X86::R11B: case X86::R11W: case X86::R11D: case X86::R11:
|
|
return X86::R11;
|
|
case X86::R12B: case X86::R12W: case X86::R12D: case X86::R12:
|
|
return X86::R12;
|
|
case X86::R13B: case X86::R13W: case X86::R13D: case X86::R13:
|
|
return X86::R13;
|
|
case X86::R14B: case X86::R14W: case X86::R14D: case X86::R14:
|
|
return X86::R14;
|
|
case X86::R15B: case X86::R15W: case X86::R15D: case X86::R15:
|
|
return X86::R15;
|
|
}
|
|
}
|
|
|
|
return Reg;
|
|
}
|
|
}
|
|
|
|
#include "X86GenRegisterInfo.inc"
|
|
|