HexagonISelLowering.cpp File Reference

#include "HexagonISelLowering.h"
#include "Hexagon.h"
#include "HexagonMachineFunctionInfo.h"
#include "HexagonRegisterInfo.h"
#include "HexagonSubtarget.h"
#include "HexagonTargetMachine.h"
#include "HexagonTargetObjectFile.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/TargetCallingConv.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsHexagon.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <limits>
#include <utility>
#include "HexagonGenCallingConv.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "hexagon-lowering"

Functions
static bool	CC_SkipOdd (unsigned &ValNo, MVT &ValVT, MVT &LocVT, CCValAssign::LocInfo &LocInfo, ISD::ArgFlagsTy &ArgFlags, CCState &State)
static SDValue	CreateCopyOfByValArgument (SDValue Src, SDValue Dst, SDValue Chain, ISD::ArgFlagsTy Flags, SelectionDAG &DAG, const SDLoc &dl)
	CreateCopyOfByValArgument - Make a copy of an aggregate at address specified by "Src" to address "Dst" of size "Size".
static bool	isBrevLdIntrinsic (const Value *Inst)
static Value *	getBrevLdObject (Value *V)
static Value *	returnEdge (const PHINode *PN, Value *IntrBaseVal)
static Value *	getUnderLyingObjectForBrevLdIntr (Value *V)

Variables
static cl::opt< bool >	EmitJumpTables ("hexagon-emit-jump-tables", cl::init(true), cl::Hidden, cl::desc("Control jump table emission on Hexagon target"))
static cl::opt< bool >	EnableHexSDNodeSched ("enable-hexagon-sdnode-sched", cl::Hidden, cl::desc("Enable Hexagon SDNode scheduling"))
static cl::opt< bool >	EnableFastMath ("ffast-math", cl::Hidden, cl::desc("Enable Fast Math processing"))
static cl::opt< int >	MinimumJumpTables ("minimum-jump-tables", cl::Hidden, cl::init(5), cl::desc("Set minimum jump tables"))
static cl::opt< int >	MaxStoresPerMemcpyCL ("max-store-memcpy", cl::Hidden, cl::init(6), cl::desc("Max #stores to inline memcpy"))
static cl::opt< int >	MaxStoresPerMemcpyOptSizeCL ("max-store-memcpy-Os", cl::Hidden, cl::init(4), cl::desc("Max #stores to inline memcpy"))
static cl::opt< int >	MaxStoresPerMemmoveCL ("max-store-memmove", cl::Hidden, cl::init(6), cl::desc("Max #stores to inline memmove"))
static cl::opt< int >	MaxStoresPerMemmoveOptSizeCL ("max-store-memmove-Os", cl::Hidden, cl::init(4), cl::desc("Max #stores to inline memmove"))
static cl::opt< int >	MaxStoresPerMemsetCL ("max-store-memset", cl::Hidden, cl::init(8), cl::desc("Max #stores to inline memset"))
static cl::opt< int >	MaxStoresPerMemsetOptSizeCL ("max-store-memset-Os", cl::Hidden, cl::init(4), cl::desc("Max #stores to inline memset"))
static cl::opt< bool >	AlignLoads ("hexagon-align-loads", cl::Hidden, cl::init(false), cl::desc("Rewrite unaligned loads as a pair of aligned loads"))
static cl::opt< bool >	DisableArgsMinAlignment ("hexagon-disable-args-min-alignment", cl::Hidden, cl::init(false), cl::desc("Disable minimum alignment of 1 for " "arguments passed by value on stack"))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "hexagon-lowering"

Definition at line 66 of file HexagonISelLowering.cpp.

Function Documentation

CC_SkipOdd()

static bool CC_SkipOdd ( unsigned &  ValNo, MVT &  ValVT, MVT &  LocVT, CCValAssign::LocInfo &  LocInfo, ISD::ArgFlagsTy &  ArgFlags, CCState &  State  )

static

Definition at line 137 of file HexagonISelLowering.cpp.

References llvm::CCState::AllocateReg(), and llvm::CCState::getFirstUnallocated().

CreateCopyOfByValArgument()

static SDValue CreateCopyOfByValArgument ( SDValue  Src, SDValue  Dst, SDValue  Chain, ISD::ArgFlagsTy  Flags, SelectionDAG &  DAG, const SDLoc &  dl  )

static

CreateCopyOfByValArgument - Make a copy of an aggregate at address specified by "Src" to address "Dst" of size "Size".

Alignment information is specified by the specific parameter attribute. The copy will be passed as a byval function parameter. Sometimes what we are copying is the end of a larger object, the part that does not fit in registers.

Definition at line 171 of file HexagonISelLowering.cpp.

References llvm::SelectionDAG::getConstant(), and llvm::SelectionDAG::getMemcpy().

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

getBrevLdObject()

static Value * getBrevLdObject ( Value *  V )

static

Definition at line 2029 of file HexagonISelLowering.cpp.

References llvm::Operator::getOpcode(), and isBrevLdIntrinsic().

Referenced by getUnderLyingObjectForBrevLdIntr(), and returnEdge().

getUnderLyingObjectForBrevLdIntr()

static Value * getUnderLyingObjectForBrevLdIntr ( Value *  V )

static

Definition at line 2071 of file HexagonISelLowering.cpp.

References getBrevLdObject(), and returnEdge().

Referenced by llvm::HexagonTargetLowering::getTgtMemIntrinsic().

isBrevLdIntrinsic()

static bool isBrevLdIntrinsic ( const Value *  Inst )

static

Definition at line 2016 of file HexagonISelLowering.cpp.

Referenced by getBrevLdObject().

returnEdge()

static Value * returnEdge ( const PHINode *  PN, Value *  IntrBaseVal  )

static

Definition at line 2041 of file HexagonISelLowering.cpp.

References assert(), getBrevLdObject(), llvm::PHINode::getIncomingBlock(), llvm::PHINode::getIncomingValue(), llvm::PHINode::getNumIncomingValues(), llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(), and Idx.

Referenced by getUnderLyingObjectForBrevLdIntr().

Variable Documentation

AlignLoads

cl::opt< bool > AlignLoads("hexagon-align-loads", cl::Hidden, cl::init(false), cl::desc("Rewrite unaligned loads as a pair of aligned loads")) ( "hexagon-align-loads"  , cl::Hidden  , cl::init(false)  , cl::desc("Rewrite unaligned loads as a pair of aligned loads")    )

static

Referenced by llvm::HexagonTargetLowering::LowerUnalignedLoad().

DisableArgsMinAlignment

cl::opt< bool > DisableArgsMinAlignment("hexagon-disable-args-min-alignment", cl::Hidden, cl::init(false), cl::desc("Disable minimum alignment of 1 for " "arguments passed by value on stack")) ( "hexagon-disable-args-min-alignment"  , cl::Hidden  , cl::init(false)  , cl::desc("Disable minimum alignment of 1 for " "arguments passed by value on stack")    )

static

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

EmitJumpTables

cl::opt< bool > EmitJumpTables("hexagon-emit-jump-tables", cl::init(true), cl::Hidden, cl::desc("Control jump table emission on Hexagon target")) ( "hexagon-emit-jump-tables"  , cl::init(true)  , cl::Hidden  , cl::desc("Control jump table emission on Hexagon target")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

EnableFastMath

cl::opt< bool > EnableFastMath("ffast-math", cl::Hidden, cl::desc("Enable Fast Math processing")) ( "ffast-math"  , cl::Hidden  , cl::desc("Enable Fast Math processing")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

EnableHexSDNodeSched

cl::opt< bool > EnableHexSDNodeSched("enable-hexagon-sdnode-sched", cl::Hidden, cl::desc("Enable Hexagon SDNode scheduling")) ( "enable-hexagon-sdnode-sched"  , cl::Hidden  , cl::desc("Enable Hexagon SDNode scheduling")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MaxStoresPerMemcpyCL

cl::opt< int > MaxStoresPerMemcpyCL("max-store-memcpy", cl::Hidden, cl::init(6), cl::desc("Max #stores to inline memcpy")) ( "max-store-memcpy"  , cl::Hidden  , cl::init(6)  , cl::desc("Max #stores to inline memcpy")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MaxStoresPerMemcpyOptSizeCL

cl::opt< int > MaxStoresPerMemcpyOptSizeCL("max-store-memcpy-Os", cl::Hidden, cl::init(4), cl::desc("Max #stores to inline memcpy")) ( "max-store-memcpy-Os"  , cl::Hidden  , cl::init(4)  , cl::desc("Max #stores to inline memcpy")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MaxStoresPerMemmoveCL

cl::opt< int > MaxStoresPerMemmoveCL("max-store-memmove", cl::Hidden, cl::init(6), cl::desc("Max #stores to inline memmove")) ( "max-store-memmove"  , cl::Hidden  , cl::init(6)  , cl::desc("Max #stores to inline memmove")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MaxStoresPerMemmoveOptSizeCL

cl::opt< int > MaxStoresPerMemmoveOptSizeCL("max-store-memmove-Os", cl::Hidden, cl::init(4), cl::desc("Max #stores to inline memmove")) ( "max-store-memmove-Os"  , cl::Hidden  , cl::init(4)  , cl::desc("Max #stores to inline memmove")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MaxStoresPerMemsetCL

cl::opt< int > MaxStoresPerMemsetCL("max-store-memset", cl::Hidden, cl::init(8), cl::desc("Max #stores to inline memset")) ( "max-store-memset"  , cl::Hidden  , cl::init(8)  , cl::desc("Max #stores to inline memset")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MaxStoresPerMemsetOptSizeCL

cl::opt< int > MaxStoresPerMemsetOptSizeCL("max-store-memset-Os", cl::Hidden, cl::init(4), cl::desc("Max #stores to inline memset")) ( "max-store-memset-Os"  , cl::Hidden  , cl::init(4)  , cl::desc("Max #stores to inline memset")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().

MinimumJumpTables

cl::opt< int > MinimumJumpTables("minimum-jump-tables", cl::Hidden, cl::init(5), cl::desc("Set minimum jump tables")) ( "minimum-jump-tables"  , cl::Hidden  , cl::init(5)  , cl::desc("Set minimum jump tables")    )

static

Referenced by llvm::HexagonTargetLowering::HexagonTargetLowering().