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//===-- ARM.h - Top-level interface for ARM representation---- --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the entry points for global functions defined in the LLVM
// ARM back-end.
//
//===----------------------------------------------------------------------===//
#ifndef TARGET_ARM_H
#define TARGET_ARM_H
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
namespace llvm {
class ARMBaseTargetMachine;
class FunctionPass;
class JITCodeEmitter;
class formatted_raw_ostream;
// Enums corresponding to ARM condition codes
namespace ARMCC {
// The CondCodes constants map directly to the 4-bit encoding of the
// condition field for predicated instructions.
enum CondCodes { // Meaning (integer) Meaning (floating-point)
EQ, // Equal Equal
NE, // Not equal Not equal, or unordered
HS, // Carry set >, ==, or unordered
LO, // Carry clear Less than
MI, // Minus, negative Less than
PL, // Plus, positive or zero >, ==, or unordered
VS, // Overflow Unordered
VC, // No overflow Not unordered
HI, // Unsigned higher Greater than, or unordered
LS, // Unsigned lower or same Less than or equal
GE, // Greater than or equal Greater than or equal
LT, // Less than Less than, or unordered
GT, // Greater than Greater than
LE, // Less than or equal <, ==, or unordered
AL // Always (unconditional) Always (unconditional)
};
inline static CondCodes getOppositeCondition(CondCodes CC) {
switch (CC) {
default: llvm_unreachable("Unknown condition code");
case EQ: return NE;
case NE: return EQ;
case HS: return LO;
case LO: return HS;
case MI: return PL;
case PL: return MI;
case VS: return VC;
case VC: return VS;
case HI: return LS;
case LS: return HI;
case GE: return LT;
case LT: return GE;
case GT: return LE;
case LE: return GT;
}
}
} // namespace ARMCC
inline static const char *ARMCondCodeToString(ARMCC::CondCodes CC) {
switch (CC) {
default: llvm_unreachable("Unknown condition code");
case ARMCC::EQ: return "eq";
case ARMCC::NE: return "ne";
case ARMCC::HS: return "hs";
case ARMCC::LO: return "lo";
case ARMCC::MI: return "mi";
case ARMCC::PL: return "pl";
case ARMCC::VS: return "vs";
case ARMCC::VC: return "vc";
case ARMCC::HI: return "hi";
case ARMCC::LS: return "ls";
case ARMCC::GE: return "ge";
case ARMCC::LT: return "lt";
case ARMCC::GT: return "gt";
case ARMCC::LE: return "le";
case ARMCC::AL: return "al";
}
}
namespace ARM_MB {
// The Memory Barrier Option constants map directly to the 4-bit encoding of
// the option field for memory barrier operations.
enum MemBOpt {
ST = 14,
ISH = 11,
ISHST = 10,
NSH = 7,
NSHST = 6,
OSH = 3,
OSHST = 2
};
inline static const char *MemBOptToString(unsigned val) {
switch (val) {
default: llvm_unreachable("Unknown memory opetion");
case ST: return "st";
case ISH: return "ish";
case ISHST: return "ishst";
case NSH: return "nsh";
case NSHST: return "nshst";
case OSH: return "osh";
case OSHST: return "oshst";
}
}
} // namespace ARM_MB
FunctionPass *createARMISelDag(ARMBaseTargetMachine &TM,
CodeGenOpt::Level OptLevel);
FunctionPass *createARMJITCodeEmitterPass(ARMBaseTargetMachine &TM,
JITCodeEmitter &JCE);
FunctionPass *createARMLoadStoreOptimizationPass(bool PreAlloc = false);
FunctionPass *createARMExpandPseudoPass();
FunctionPass *createARMGlobalMergePass(const TargetLowering* tli);
FunctionPass *createARMConstantIslandPass();
FunctionPass *createNEONMoveFixPass();
FunctionPass *createThumb2ITBlockPass();
FunctionPass *createThumb2SizeReductionPass();
extern Target TheARMTarget, TheThumbTarget;
} // end namespace llvm;
// Defines symbolic names for ARM registers. This defines a mapping from
// register name to register number.
//
#include "ARMGenRegisterNames.inc"
// Defines symbolic names for the ARM instructions.
//
#include "ARMGenInstrNames.inc"
#endif
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