X86WinEHUnwindV3.cpp File Reference

#include "MCTargetDesc/X86BaseInfo.h"
#include "X86.h"
#include "X86Subtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "x86-wineh-unwindv3"

Functions
	STATISTIC (FunctionsProcessed, "Number of functions processed by Unwind v3 pass")
	STATISTIC (SubFragmentSplits, "Number of sub-fragment splits inserted for Unwind v3")
static void	suppressWinCFI (MachineFunction &MF)
	After reporting a recoverable error for MF, erase all SEH pseudo- instructions and clear the WinCFI flag so the AsmPrinter doesn't try to emit (potentially malformed) unwind information.
	INITIALIZE_PASS (X86WinEHUnwindV3, "x86-wineh-unwindv3", "Capacity check and sub-fragment splitting for Win64 Unwind v3", false, false) FunctionPass *llvm

Variables
static constexpr unsigned	MaxV3PrologOps = 31
	V3 limits from the format specification.
static constexpr unsigned	MaxV3Epilogs = 7
static constexpr unsigned	MaxV3EpilogOps = 31

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "x86-wineh-unwindv3"

Definition at line 38 of file X86WinEHUnwindV3.cpp.

Function Documentation

INITIALIZE_PASS()

INITIALIZE_PASS	(	X86WinEHUnwindV3	,
		"x86-wineh-unwindv3"	,
		"Capacity check and sub-fragment splitting for Win64 Unwind v3"	,
		false	,
		false	)

Definition at line 117 of file X86WinEHUnwindV3.cpp.

References llvm::createX86WinEHUnwindV3Pass().

STATISTIC() [1/2]

STATISTIC	(	FunctionsProcessed	,
		"Number of functions processed by Unwind v3 pass"	)

STATISTIC() [2/2]

STATISTIC	(	SubFragmentSplits	,
		"Number of sub-fragment splits inserted for Unwind v3"	)

suppressWinCFI()

void suppressWinCFI ( MachineFunction & MF )

static

After reporting a recoverable error for MF, erase all SEH pseudo- instructions and clear the WinCFI flag so the AsmPrinter doesn't try to emit (potentially malformed) unwind information.

The LLVMContext diagnostic recorded by the caller will prevent the object file from actually being written.

Definition at line 55 of file X86WinEHUnwindV3.cpp.

References llvm::make_early_inc_range(), MBB, MI, and llvm::MachineFunction::setHasWinCFI().

Variable Documentation

MaxV3EpilogOps

unsigned MaxV3EpilogOps = 31

staticconstexpr

Definition at line 48 of file X86WinEHUnwindV3.cpp.

MaxV3Epilogs

unsigned MaxV3Epilogs = 7

staticconstexpr

Definition at line 47 of file X86WinEHUnwindV3.cpp.

MaxV3PrologOps

unsigned MaxV3PrologOps = 31

staticconstexpr

V3 limits from the format specification.

Definition at line 46 of file X86WinEHUnwindV3.cpp.