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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/************************************************************************/
/* Overall emitter control (including startup and shutdown) */
/************************************************************************/
static void emitInit();
static void emitDone();
void emitBegCG(Compiler* comp, COMP_HANDLE cmpHandle);
void emitEndCG();
void emitBegFN(bool hasFramePtr
#if defined(DEBUG)
,
bool checkAlign
#endif
#ifdef LEGACY_BACKEND
,
unsigned lclSize
#endif // LEGACY_BACKEND
,
unsigned maxTmpSize);
void emitEndFN();
void emitComputeCodeSizes();
unsigned emitEndCodeGen(Compiler* comp,
bool contTrkPtrLcls,
bool fullyInt,
bool fullPtrMap,
bool returnsGCr,
unsigned xcptnsCount,
unsigned* prologSize,
unsigned* epilogSize,
void** codeAddr,
void** coldCodeAddr,
void** consAddr);
/************************************************************************/
/* Method prolog and epilog */
/************************************************************************/
unsigned emitGetEpilogCnt();
template <typename Callback>
bool emitGenNoGCLst(Callback& cb);
void emitBegProlog();
unsigned emitGetPrologOffsetEstimate();
void emitMarkPrologEnd();
void emitEndProlog();
void emitCreatePlaceholderIG(insGroupPlaceholderType igType,
BasicBlock* igBB,
VARSET_VALARG_TP GCvars,
regMaskTP gcrefRegs,
regMaskTP byrefRegs,
bool last);
void emitGeneratePrologEpilog();
void emitStartPrologEpilogGeneration();
void emitFinishPrologEpilogGeneration();
/************************************************************************/
/* Record a code position and later convert it to offset */
/************************************************************************/
void* emitCurBlock();
unsigned emitCurOffset();
UNATIVE_OFFSET emitCodeOffset(void* blockPtr, unsigned codeOffs);
#ifdef DEBUG
const char* emitOffsetToLabel(unsigned offs);
#endif // DEBUG
/************************************************************************/
/* Output target-independent instructions */
/************************************************************************/
void emitIns_J(instruction ins, BasicBlock* dst, int instrCount = 0);
/************************************************************************/
/* Emit initialized data sections */
/************************************************************************/
UNATIVE_OFFSET emitDataGenBeg(UNATIVE_OFFSET size, bool dblAlign, bool codeLtab);
UNATIVE_OFFSET emitBBTableDataGenBeg(unsigned numEntries, bool relativeAddr);
void emitDataGenData(unsigned offs, const void* data, size_t size);
void emitDataGenData(unsigned offs, BasicBlock* label);
void emitDataGenEnd();
UNATIVE_OFFSET emitDataConst(const void* cnsAddr, unsigned cnsSize, bool dblAlign);
UNATIVE_OFFSET emitDataSize();
/************************************************************************/
/* Instruction information */
/************************************************************************/
#ifdef _TARGET_XARCH_
static bool instrIs3opImul(instruction ins);
static bool instrIsExtendedReg3opImul(instruction ins);
static bool instrHasImplicitRegPairDest(instruction ins);
static void check3opImulValues();
static regNumber inst3opImulReg(instruction ins);
static instruction inst3opImulForReg(regNumber reg);
#endif
/************************************************************************/
/* Emit PDB offset translation information */
/************************************************************************/
#ifdef TRANSLATE_PDB
static void SetILBaseOfCode(BYTE* pTextBase);
static void SetILMethodBase(BYTE* pMethodEntry);
static void SetILMethodStart(BYTE* pMethodCode);
static void SetImgBaseOfCode(BYTE* pTextBase);
void SetIDBaseToProlog();
void SetIDBaseToOffset(int methodOffset);
static void DisablePDBTranslation();
static bool IsPDBEnabled();
static void InitTranslationMaps(int ilCodeSize);
static void DeleteTranslationMaps();
static void InitTranslator(PDBRewriter* pPDB, int* rgSecMap, IMAGE_SECTION_HEADER** rgpHeader, int numSections);
#endif
/************************************************************************/
/* Interface for generating unwind information */
/************************************************************************/
#ifdef _TARGET_ARMARCH_
bool emitIsFuncEnd(emitLocation* emitLoc, emitLocation* emitLocNextFragment = NULL);
void emitSplit(emitLocation* startLoc,
emitLocation* endLoc,
UNATIVE_OFFSET maxSplitSize,
void* context,
emitSplitCallbackType callbackFunc);
void emitUnwindNopPadding(emitLocation* locFrom, Compiler* comp);
#endif // _TARGET_ARMARCH_
#if defined(_TARGET_ARM_)
unsigned emitGetInstructionSize(emitLocation* emitLoc);
#endif // defined(_TARGET_ARM_)
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