ARMISelDAGToDAG.cpp File Reference

#include "ARM.h"
#include "ARMBaseInstrInfo.h"
#include "ARMTargetMachine.h"
#include "MCTargetDesc/ARMAddressingModes.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetOptions.h"
#include "ARMGenDAGISel.inc"

Include dependency graph for ARMISelDAGToDAG.cpp:

Go to the source code of this file.

Defines
#define	DEBUG_TYPE   "arm-isel"
Enumerations
enum	AddrMode2Type
Functions
static bool	isInt32Immediate (SDNode *N, unsigned &Imm)
static bool	isInt32Immediate (SDValue N, unsigned &Imm)
static bool	isOpcWithIntImmediate (SDNode *N, unsigned Opc, unsigned &Imm)
static bool	isScaledConstantInRange (SDValue Node, int Scale, int RangeMin, int RangeMax, int &ScaledConstant)
	Check whether a particular node is a constant value representable as (N * Scale) where (N in [RangeMin, RangeMax).
static SDValue	getAL (SelectionDAG *CurDAG)
	getAL - Returns a ARMCC::AL immediate node.
static bool	isVLDfixed (unsigned Opc)
static bool	isVSTfixed (unsigned Opc)
static unsigned	getVLDSTRegisterUpdateOpcode (unsigned Opc)
Variables
static cl::opt< bool >	DisableShifterOp ("disable-shifter-op", cl::Hidden, cl::desc("Disable isel of shifter-op"), cl::init(false))
static cl::opt< bool >	CheckVMLxHazard ("check-vmlx-hazard", cl::Hidden, cl::desc("Check fp vmla / vmls hazard at isel time"), cl::init(true))

---

Define Documentation

#define DEBUG_TYPE   "arm-isel"

Definition at line 39 of file ARMISelDAGToDAG.cpp.

---

Enumeration Type Documentation

enum AddrMode2Type

Definition at line 57 of file ARMISelDAGToDAG.cpp.

---

Function Documentation

static SDValue getAL

(

SelectionDAG *

CurDAG

)

[inline, static]

getAL - Returns a ARMCC::AL immediate node.

Definition at line 1438 of file ARMISelDAGToDAG.cpp.

References llvm::ARMCC::AL, llvm::SelectionDAG::getTargetConstant(), and llvm::MVT::i32.

static unsigned getVLDSTRegisterUpdateOpcode

(

unsigned

Opc

)

[static]

Definition at line 1722 of file ARMISelDAGToDAG.cpp.

References isVLDfixed(), and isVSTfixed().

static bool isInt32Immediate	(	SDNode *	N,
		unsigned &	Imm
	)		[static]

isInt32Immediate - This method tests to see if the node is a 32-bit constant operand. If so Imm will receive the 32-bit value.

Definition at line 281 of file ARMISelDAGToDAG.cpp.

References llvm::ISD::Constant, llvm::SDNode::getOpcode(), llvm::SDNode::getValueType(), and llvm::MVT::i32.

Referenced by isInt32Immediate(), and isOpcWithIntImmediate().

static bool isInt32Immediate	(	SDValue	N,
		unsigned &	Imm
	)		[static]

Definition at line 291 of file ARMISelDAGToDAG.cpp.

References llvm::SDValue::getNode(), and isInt32Immediate().

static bool isOpcWithIntImmediate	(	SDNode *	N,
		unsigned	Opc,
		unsigned &	Imm
	)		[static]

Definition at line 298 of file ARMISelDAGToDAG.cpp.

References llvm::SDValue::getNode(), llvm::SDNode::getOpcode(), llvm::SDNode::getOperand(), and isInt32Immediate().

static bool isScaledConstantInRange	(	SDValue	Node,
		int	Scale,
		int	RangeMin,
		int	RangeMax,
		int &	ScaledConstant
	)		[static]

Check whether a particular node is a constant value representable as (N * Scale) where (N in [RangeMin, RangeMax).

Parameters:

ScaledConstant

[out] - On success, the pre-scaled constant value.

Definition at line 307 of file ARMISelDAGToDAG.cpp.

References llvm::CallingConv::C, llvm::dyn_cast(), llvm::ConstantSDNode::getZExtValue(), and Node.

static bool isVLDfixed

(

unsigned

Opc

)

[static]

Definition at line 1670 of file ARMISelDAGToDAG.cpp.

Referenced by getVLDSTRegisterUpdateOpcode().

static bool isVSTfixed

(

unsigned

Opc

)

[static]

Definition at line 1697 of file ARMISelDAGToDAG.cpp.

Referenced by getVLDSTRegisterUpdateOpcode().

---

Variable Documentation

cl::opt<bool> CheckVMLxHazard("check-vmlx-hazard", cl::Hidden, cl::desc("Check fp vmla / vmls hazard at isel time"), cl::init(true)) [static]

cl::opt<bool> DisableShifterOp("disable-shifter-op", cl::Hidden, cl::desc("Disable isel of shifter-op"), cl::init(false)) [static]