LLVM 19.0.0git
Namespaces | Macros | Functions
MCAssembler.cpp File Reference
#include "llvm/MC/MCAssembler.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCCodeView.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCFixup.h"
#include "llvm/MC/MCFixupKindInfo.h"
#include "llvm/MC/MCFragment.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/Alignment.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/EndianStream.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
#include <tuple>
#include <utility>

Go to the source code of this file.

Namespaces

namespace  llvm
 This is an optimization pass for GlobalISel generic memory operations.
 
namespace  stats
 

Macros

#define DEBUG_TYPE   "assembler"
 

Functions

static uint64_t computeBundlePadding (unsigned BundleSize, const MCEncodedFragment *F, uint64_t FOffset, uint64_t FSize)
 
static bool getLabelOffset (const MCAssembler &Asm, const MCSymbol &S, bool ReportError, uint64_t &Val)
 
static bool getSymbolOffsetImpl (const MCAssembler &Asm, const MCSymbol &S, bool ReportError, uint64_t &Val)
 
static void writeFragment (raw_ostream &OS, const MCAssembler &Asm, const MCFragment &F)
 Write the fragment F to the output file.
 
static bool mayCrossBoundary (uint64_t StartAddr, uint64_t Size, Align BoundaryAlignment)
 Check if the branch crosses the boundary.
 
static bool isAgainstBoundary (uint64_t StartAddr, uint64_t Size, Align BoundaryAlignment)
 Check if the branch is against the boundary.
 
static bool needPadding (uint64_t StartAddr, uint64_t Size, Align BoundaryAlignment)
 Check if the branch needs padding.
 

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE   "assembler"

Definition at line 49 of file MCAssembler.cpp.

Function Documentation

◆ computeBundlePadding()

static uint64_t computeBundlePadding ( unsigned  BundleSize,
const MCEncodedFragment F,
uint64_t  FOffset,
uint64_t  FSize 
)
static

Definition at line 363 of file MCAssembler.cpp.

References F.

Referenced by llvm::MCAssembler::layoutBundle().

◆ getLabelOffset()

static bool getLabelOffset ( const MCAssembler Asm,
const MCSymbol S,
bool  ReportError,
uint64_t Val 
)
static

◆ getSymbolOffsetImpl()

static bool getSymbolOffsetImpl ( const MCAssembler Asm,
const MCSymbol S,
bool  ReportError,
uint64_t Val 
)
static

◆ isAgainstBoundary()

static bool isAgainstBoundary ( uint64_t  StartAddr,
uint64_t  Size,
Align  BoundaryAlignment 
)
static

Check if the branch is against the boundary.

Parameters
StartAddrstart address of the fused/unfused branch.
Sizesize of the fused/unfused branch.
BoundaryAlignmentalignment requirement of the branch.
Returns
true if the branch is against the boundary.

Definition at line 1150 of file MCAssembler.cpp.

References Size, and llvm::Align::value().

Referenced by needPadding().

◆ mayCrossBoundary()

static bool mayCrossBoundary ( uint64_t  StartAddr,
uint64_t  Size,
Align  BoundaryAlignment 
)
static

Check if the branch crosses the boundary.

Parameters
StartAddrstart address of the fused/unfused branch.
Sizesize of the fused/unfused branch.
BoundaryAlignmentalignment requirement of the branch.
Returns
true if the branch cross the boundary.

Definition at line 1137 of file MCAssembler.cpp.

References llvm::Log2(), and Size.

Referenced by needPadding().

◆ needPadding()

static bool needPadding ( uint64_t  StartAddr,
uint64_t  Size,
Align  BoundaryAlignment 
)
static

Check if the branch needs padding.

Parameters
StartAddrstart address of the fused/unfused branch.
Sizesize of the fused/unfused branch.
BoundaryAlignmentalignment requirement of the branch.
Returns
true if the branch needs padding.

Definition at line 1162 of file MCAssembler.cpp.

References isAgainstBoundary(), mayCrossBoundary(), and Size.

◆ writeFragment()

static void writeFragment ( raw_ostream OS,
const MCAssembler Asm,
const MCFragment F 
)
static