LLVM API Documentation

 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
Macros | Functions
SystemZISelLowering.cpp File Reference
#include "SystemZISelLowering.h"
#include "SystemZCallingConv.h"
#include "SystemZConstantPoolValue.h"
#include "SystemZMachineFunctionInfo.h"
#include "SystemZTargetMachine.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
#include <cctype>
#include "SystemZGenCallingConv.inc"
Include dependency graph for SystemZISelLowering.cpp:

Go to the source code of this file.

Macros

#define DEBUG_TYPE   "systemz-lower"
 
#define CONV(X)
 
#define OPCODE(NAME)   case SystemZISD::NAME: return "SystemZISD::" #NAME
 

Functions

static bool is32Bit (EVT VT)
 
static MachineOperand earlyUseOperand (MachineOperand Op)
 
static std::pair< unsigned,
const TargetRegisterClass * > 		parseRegisterNumber (const std::string &Constraint, const TargetRegisterClass *RC, const unsigned *Map)
 
static SDValue convertLocVTToValVT (SelectionDAG &DAG, SDLoc DL, CCValAssign &VA, SDValue Chain, SDValue Value)
 
static SDValue convertValVTToLocVT (SelectionDAG &DAG, SDLoc DL, CCValAssign &VA, SDValue Value)
 
static bool canUseSiblingCall (CCState ArgCCInfo, SmallVectorImpl< CCValAssign > &ArgLocs)
 
static unsigned CCMaskForCondCode (ISD::CondCode CC)
 
static IPMConversion getIPMConversion (unsigned CCValid, unsigned CCMask)
 
static void adjustZeroCmp (SelectionDAG &DAG, bool &IsUnsigned, SDValue &CmpOp0, SDValue &CmpOp1, unsigned &CCMask)
 
static void adjustSubwordCmp (SelectionDAG &DAG, bool &IsUnsigned, SDValue &CmpOp0, SDValue &CmpOp1, unsigned &CCMask)
 
static bool isNaturalMemoryOperand (SDValue Op, unsigned ICmpType)
 
static bool shouldSwapCmpOperands (SDValue Op0, SDValue Op1, unsigned ICmpType)
 
static bool isSimpleShift (SDValue N, unsigned &ShiftVal)
 
static unsigned getTestUnderMaskCond (unsigned BitSize, unsigned CCMask, uint64_t Mask, uint64_t CmpVal, unsigned ICmpType)
 
static void adjustForTestUnderMask (SelectionDAG &DAG, unsigned &Opcode, SDValue &CmpOp0, SDValue &CmpOp1, unsigned &CCValid, unsigned &CCMask, unsigned &ICmpType)
 
static SDValue emitCmp (const SystemZTargetMachine &TM, SelectionDAG &DAG, SDLoc DL, SDValue CmpOp0, SDValue CmpOp1, ISD::CondCode Cond, unsigned &CCValid, unsigned &CCMask)
 
static void lowerMUL_LOHI32 (SelectionDAG &DAG, SDLoc DL, unsigned Extend, SDValue Op0, SDValue Op1, SDValue &Hi, SDValue &Lo)
 
static void lowerGR128Binary (SelectionDAG &DAG, SDLoc DL, EVT VT, unsigned Extend, unsigned Opcode, SDValue Op0, SDValue Op1, SDValue &Even, SDValue &Odd)
 
static MachineBasicBlock * emitBlockAfter (MachineBasicBlock *MBB)
 
static MachineBasicBlock * splitBlockAfter (MachineInstr *MI, MachineBasicBlock *MBB)
 
static MachineBasicBlock * splitBlockBefore (MachineInstr *MI, MachineBasicBlock *MBB)
 
static unsigned forceReg (MachineInstr *MI, MachineOperand &Base, const SystemZInstrInfo *TII)
 

Macro Definition Documentation

#define CONV (   X)
Value:
case ISD::SET##X: return SystemZ::CCMASK_CMP_##X; \
case ISD::SETO##X: return SystemZ::CCMASK_CMP_##X; \
case ISD::SETU##X: return SystemZ::CCMASK_CMP_UO | SystemZ::CCMASK_CMP_##X
SET
#define SET(n)
Definition: MD5.cpp:64
X
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang","erlang-compatible garbage collector")
llvm::SystemZ::CCMASK_CMP_UO
const unsigned CCMASK_CMP_UO
Definition: SystemZ.h:43

Referenced by CCMaskForCondCode().

#define DEBUG_TYPE   "systemz-lower"

Definition at line 14 of file SystemZISelLowering.cpp.

#define OPCODE (   NAME)    case SystemZISD::NAME: return "SystemZISD::" #NAME

Referenced by llvm::SystemZTargetLowering::getTargetNodeName().

Function Documentation

static void adjustForTestUnderMask ( SelectionDAG &  DAG,
unsigned &  Opcode,
SDValue &  CmpOp0,
SDValue &  CmpOp1,
unsigned &  CCValid,
unsigned &  CCMask,
unsigned &  ICmpType 
)
static

Definition at line 1348 of file SystemZISelLowering.cpp.

References llvm::ISD::AND, llvm::SystemZICMP::Any, llvm::SystemZ::CCMASK_TM, llvm::SystemZ::CCMASK_TM_MIXED_MSB_0, llvm::SystemZ::CCMASK_TM_MIXED_MSB_1, llvm::dyn_cast(), llvm::SelectionDAG::getConstant(), llvm::SDValue::getNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), llvm::EVT::getSizeInBits(), getTestUnderMaskCond(), llvm::SDValue::getValueType(), llvm::ConstantSDNode::getZExtValue(), isSimpleShift(), llvm::ISD::SHL, llvm::SystemZICMP::SignedOnly, llvm::ISD::SRL, llvm::SystemZISD::TM, and llvm::SystemZICMP::UnsignedOnly.

Referenced by emitCmp().

static void adjustSubwordCmp ( SelectionDAG &  DAG,
bool &  IsUnsigned,
SDValue &  CmpOp0,
SDValue &  CmpOp1,
unsigned &  CCMask 
)
static

Definition at line 1093 of file SystemZISelLowering.cpp.

References llvm::SystemZ::CCMASK_CMP_EQ, llvm::SystemZ::CCMASK_CMP_GE, llvm::SystemZ::CCMASK_CMP_GT, llvm::SystemZ::CCMASK_CMP_LT, llvm::SystemZ::CCMASK_CMP_NE, llvm::ISD::Constant, llvm::MemSDNode::getAlignment(), llvm::LoadSDNode::getBasePtr(), llvm::MemSDNode::getChain(), llvm::SelectionDAG::getConstant(), llvm::LoadSDNode::getExtensionType(), llvm::SelectionDAG::getExtLoad(), llvm::MemSDNode::getMemoryVT(), llvm::SDValue::getOpcode(), llvm::MemSDNode::getPointerInfo(), llvm::ConstantSDNode::getSExtValue(), llvm::EVT::getStoreSizeInBits(), llvm::SDValue::getValueType(), llvm::ConstantSDNode::getZExtValue(), llvm::SDValue::hasOneUse(), llvm::MVT::i32, llvm::MemSDNode::isNonTemporal(), llvm::MemSDNode::isVolatile(), llvm::SPII::Load, llvm::ISD::LOAD, llvm::ISD::SEXTLOAD, and llvm::ISD::ZEXTLOAD.

Referenced by emitCmp().

static void adjustZeroCmp ( SelectionDAG &  DAG,
bool &  IsUnsigned,
SDValue &  CmpOp0,
SDValue &  CmpOp1,
unsigned &  CCMask 
)
static

Definition at line 1071 of file SystemZISelLowering.cpp.

References llvm::SystemZ::CCMASK_CMP_EQ, llvm::SystemZ::CCMASK_CMP_GE, llvm::SystemZ::CCMASK_CMP_GT, llvm::SystemZ::CCMASK_CMP_LE, llvm::SystemZ::CCMASK_CMP_LT, llvm::dyn_cast(), llvm::SelectionDAG::getConstant(), llvm::SDValue::getNode(), llvm::ConstantSDNode::getSExtValue(), and llvm::SDValue::getValueType().

Referenced by emitCmp().

static bool canUseSiblingCall ( CCState  ArgCCInfo,
SmallVectorImpl< CCValAssign > &  ArgLocs 
)
static

Definition at line 753 of file SystemZISelLowering.cpp.

References llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocReg(), I, llvm::CCValAssign::Indirect, llvm::CCValAssign::isRegLoc(), and llvm::SmallVectorTemplateCommon< T >::size().

Referenced by llvm::SystemZTargetLowering::LowerCall().

static unsigned CCMaskForCondCode ( ISD::CondCode  CC)
static

Definition at line 978 of file SystemZISelLowering.cpp.

References llvm::SystemZ::CCMASK_CMP_O, llvm::SystemZ::CCMASK_CMP_UO, CONV, EQ, llvm::A64CC::GE, llvm::A64CC::GT, llvm::A64CC::LE, llvm_unreachable, llvm::A64CC::LT, llvm::A64CC::NE, llvm::ISD::SETO, and llvm::ISD::SETUO.

Referenced by emitCmp().

static SDValue convertLocVTToValVT ( SelectionDAG &  DAG,
SDLoc  DL,
CCValAssign &  VA,
SDValue  Chain,
SDValue  Value 
)
static

Definition at line 594 of file SystemZISelLowering.cpp.

References llvm::ISD::AssertSext, llvm::ISD::AssertZext, llvm::CCValAssign::Full, llvm::SelectionDAG::getLoad(), llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getValueType(), llvm::CCValAssign::getValVT(), llvm::CCValAssign::Indirect, llvm::CCValAssign::isExtInLoc(), llvm::CCValAssign::SExt, llvm::ISD::TRUNCATE, and llvm::CCValAssign::ZExt.

Referenced by llvm::SystemZTargetLowering::LowerCall(), and llvm::SystemZTargetLowering::LowerFormalArguments().

static SDValue convertValVTToLocVT ( SelectionDAG &  DAG,
SDLoc  DL,
CCValAssign &  VA,
SDValue  Value 
)
static

Definition at line 619 of file SystemZISelLowering.cpp.

References llvm::CCValAssign::AExt, llvm::ISD::ANY_EXTEND, llvm::CCValAssign::Full, llvm::CCValAssign::getLocInfo(), llvm::CCValAssign::getLocVT(), llvm::SelectionDAG::getNode(), llvm_unreachable, llvm::CCValAssign::SExt, llvm::ISD::SIGN_EXTEND, llvm::ISD::ZERO_EXTEND, and llvm::CCValAssign::ZExt.

Referenced by llvm::SystemZTargetLowering::LowerCall(), and llvm::SystemZTargetLowering::LowerReturn().

static MachineOperand earlyUseOperand ( MachineOperand  Op)
static

Definition at line 57 of file SystemZISelLowering.cpp.

References llvm::MachineOperand::isReg(), and llvm::MachineOperand::setIsKill().

static MachineBasicBlock* emitBlockAfter ( MachineBasicBlock *  MBB)
static

Definition at line 2236 of file SystemZISelLowering.cpp.

References llvm::MachineFunction::CreateMachineBasicBlock(), llvm::MachineBasicBlock::getBasicBlock(), llvm::MachineBasicBlock::getParent(), llvm::MachineFunction::insert(), and llvm::next().

Referenced by splitBlockAfter(), and splitBlockBefore().

static SDValue emitCmp ( const SystemZTargetMachine &  TM,
SelectionDAG &  DAG,
SDLoc  DL,
SDValue  CmpOp0,
SDValue  CmpOp1,
ISD::CondCode  Cond,
unsigned &  CCValid,
unsigned &  CCMask 
)
static

Definition at line 1410 of file SystemZISelLowering.cpp.

References adjustForTestUnderMask(), adjustSubwordCmp(), adjustZeroCmp(), llvm::SystemZICMP::Any, llvm::SystemZ::CCMASK_CMP_EQ, llvm::SystemZ::CCMASK_CMP_GT, llvm::SystemZ::CCMASK_CMP_LT, llvm::SystemZ::CCMASK_CMP_NE, llvm::SystemZ::CCMASK_CMP_UO, llvm::SystemZ::CCMASK_FCMP, llvm::SystemZ::CCMASK_ICMP, CCMaskForCondCode(), llvm::SystemZISD::FCMP, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::MVT::Glue, llvm::MVT::i32, llvm::SystemZISD::ICMP, llvm::EVT::isFloatingPoint(), shouldSwapCmpOperands(), llvm::SelectionDAG::SignBitIsZero(), llvm::SystemZICMP::SignedOnly, std::swap(), llvm::SystemZISD::TM, and llvm::SystemZICMP::UnsignedOnly.

static unsigned forceReg ( MachineInstr *  MI,
MachineOperand &  Base,
const SystemZInstrInfo *  TII 
)
static

Definition at line 2265 of file SystemZISelLowering.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::MachineInstr::getDebugLoc(), llvm::MachineInstr::getParent(), llvm::MachineBasicBlock::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::MachineOperand::isReg(), and MRI.

static IPMConversion getIPMConversion ( unsigned  CCValid,
unsigned  CCMask 
)
static

Definition at line 1004 of file SystemZISelLowering.cpp.

References llvm::SystemZ::CCMASK_0, llvm::SystemZ::CCMASK_1, llvm::SystemZ::CCMASK_2, llvm::SystemZ::CCMASK_3, llvm::SystemZ::IPM_CC, and llvm_unreachable.

static unsigned getTestUnderMaskCond ( unsigned  BitSize,
unsigned  CCMask,
uint64_t  Mask,
uint64_t  CmpVal,
unsigned  ICmpType 
)
static

Definition at line 1254 of file SystemZISelLowering.cpp.

References llvm::SystemZ::CCMASK_ANY, llvm::SystemZ::CCMASK_CMP_EQ, llvm::SystemZ::CCMASK_CMP_GE, llvm::SystemZ::CCMASK_CMP_GT, llvm::SystemZ::CCMASK_CMP_LE, llvm::SystemZ::CCMASK_CMP_LT, llvm::SystemZ::CCMASK_CMP_NE, llvm::SystemZ::CCMASK_TM_ALL_0, llvm::SystemZ::CCMASK_TM_ALL_1, llvm::SystemZ::CCMASK_TM_MIXED_MSB_0, llvm::SystemZ::CCMASK_TM_MIXED_MSB_1, llvm::SystemZ::CCMASK_TM_MSB_0, llvm::SystemZ::CCMASK_TM_MSB_1, llvm::SystemZ::CCMASK_TM_SOME_0, llvm::SystemZ::CCMASK_TM_SOME_1, llvm::countLeadingZeros(), llvm::countTrailingZeros(), llvm::SystemZ::isImmHH(), llvm::SystemZ::isImmHL(), llvm::SystemZ::isImmLH(), llvm::SystemZ::isImmLL(), and llvm::SystemZICMP::SignedOnly.

Referenced by adjustForTestUnderMask().

static bool is32Bit ( EVT  VT)
static

Definition at line 44 of file SystemZISelLowering.cpp.

References llvm::EVT::getSimpleVT(), llvm::MVT::i32, llvm::MVT::i64, llvm_unreachable, and llvm::MVT::SimpleTy.

Referenced by lowerGR128Binary().

static bool isNaturalMemoryOperand ( SDValue  Op,
unsigned  ICmpType 
)
static

Definition at line 1169 of file SystemZISelLowering.cpp.

References llvm::dyn_cast(), llvm::LoadSDNode::getExtensionType(), llvm::MemSDNode::getMemoryVT(), llvm::SDValue::getNode(), llvm::MVT::i8, llvm::SPII::Load, llvm::ISD::NON_EXTLOAD, llvm::ISD::SEXTLOAD, llvm::SystemZICMP::SignedOnly, llvm::SystemZICMP::UnsignedOnly, and llvm::ISD::ZEXTLOAD.

Referenced by shouldSwapCmpOperands().

static bool isSimpleShift ( SDValue  N,
unsigned &  ShiftVal 
)
static

Definition at line 1235 of file SystemZISelLowering.cpp.

References llvm::dyn_cast(), llvm::SDValue::getOperand(), llvm::EVT::getSizeInBits(), llvm::SDValue::getValueType(), and llvm::ConstantSDNode::getZExtValue().

Referenced by adjustForTestUnderMask().

static void lowerGR128Binary ( SelectionDAG &  DAG,
SDLoc  DL,
EVT  VT,
unsigned  Extend,
unsigned  Opcode,
SDValue  Op0,
SDValue  Op1,
SDValue &  Even,
SDValue &  Odd 
)
static

Definition at line 1477 of file SystemZISelLowering.cpp.

References llvm::SystemZ::even128(), llvm::SelectionDAG::getMachineNode(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getTargetExtractSubreg(), is32Bit(), llvm::SystemZ::odd128(), and llvm::MVT::Untyped.

static void lowerMUL_LOHI32 ( SelectionDAG &  DAG,
SDLoc  DL,
unsigned  Extend,
SDValue  Op0,
SDValue  Op1,
SDValue &  Hi,
SDValue &  Lo 
)
static

Definition at line 1461 of file SystemZISelLowering.cpp.

References llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::MVT::i32, llvm::MVT::i64, llvm::ISD::MUL, llvm::ISD::SRL, and llvm::ISD::TRUNCATE.

static std::pair<unsigned, const TargetRegisterClass *> parseRegisterNumber ( const std::string &  Constraint,
const TargetRegisterClass *  RC,
const unsigned *  Map 
)
static

Definition at line 455 of file SystemZISelLowering.cpp.

References llvm::LibFunc::atoi, and llvm::LibFunc::isdigit.

Referenced by llvm::SystemZTargetLowering::getRegForInlineAsmConstraint().

static bool shouldSwapCmpOperands ( SDValue  Op0,
SDValue  Op1,
unsigned  ICmpType 
)
static

Definition at line 1192 of file SystemZISelLowering.cpp.

References llvm::dyn_cast(), llvm::MVT::f128, llvm::ConstantSDNode::getSExtValue(), llvm::SDValue::getValueType(), llvm::ConstantSDNode::getZExtValue(), llvm::SDValue::hasOneUse(), llvm::isInt< 16 >(), isNaturalMemoryOperand(), llvm::isUInt< 16 >(), llvm::SystemZICMP::SignedOnly, and llvm::SystemZICMP::UnsignedOnly.

Referenced by emitCmp().

static MachineBasicBlock* splitBlockAfter ( MachineInstr *  MI,
MachineBasicBlock *  MBB 
)
static

Definition at line 2245 of file SystemZISelLowering.cpp.

References llvm::MachineBasicBlock::begin(), emitBlockAfter(), llvm::MachineBasicBlock::end(), llvm::next(), llvm::MachineBasicBlock::splice(), and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

static MachineBasicBlock* splitBlockBefore ( MachineInstr *  MI,
MachineBasicBlock *  MBB 
)
static

Definition at line 2256 of file SystemZISelLowering.cpp.

References llvm::MachineBasicBlock::begin(), emitBlockAfter(), llvm::MachineBasicBlock::end(), llvm::A64CC::MI, llvm::MachineBasicBlock::splice(), and llvm::MachineBasicBlock::transferSuccessorsAndUpdatePHIs().

Generated on Tue Mar 18 2014 10:39:48 for LLVM by Doxygen1.8.6
Copyright © 2003-2013 University of Illinois at Urbana-Champaign. All Rights Reserved.