WebAssemblyDebugFixup.cpp File Reference

Several prior passes may "stackify" registers, here we ensure any references in such registers in debug_value instructions become stack relative also. More...

#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
#include "WebAssembly.h"
#include "WebAssemblyMachineFunctionInfo.h"
#include "WebAssemblySubtarget.h"
#include "WebAssemblyUtilities.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionAnalysisManager.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachinePassManager.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/IR/Analysis.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "wasm-debug-fixup"

Functions
	INITIALIZE_PASS (WebAssemblyDebugFixupLegacy, DEBUG_TYPE, "Ensures debug_value's that have been stackified become stack relative", false, false) FunctionPass *llvm
static void	setDanglingDebugValuesUndef (MachineBasicBlock &MBB, const TargetInstrInfo *TII)
static bool	debugFixup (MachineFunction &MF)

Detailed Description

Several prior passes may "stackify" registers, here we ensure any references in such registers in debug_value instructions become stack relative also.

This is done in a separate pass such that not all previous passes need to track stack depth when values get stackified.

Definition in file WebAssemblyDebugFixup.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "wasm-debug-fixup"

Definition at line 33 of file WebAssemblyDebugFixup.cpp.

Function Documentation

debugFixup()

bool debugFixup ( MachineFunction & MF )

static

Definition at line 80 of file WebAssemblyDebugFixup.cpp.

References assert(), llvm::BuildMI(), llvm::dbgs(), llvm::Depth, llvm::MachineFunction::getInfo(), llvm::MachineFunction::getName(), llvm::MachineFunction::getSubtarget(), llvm::WebAssemblyFunctionInfo::isVRegStackified(), LLVM_DEBUG, MBB, MI, llvm::printReg(), Reg, llvm::reverse(), setDanglingDebugValuesUndef(), llvm::WebAssembly::TI_OPERAND_STACK, and TII.

Referenced by llvm::WebAssemblyDebugFixupPass::run().

INITIALIZE_PASS()

INITIALIZE_PASS	(	WebAssemblyDebugFixupLegacy	,
		DEBUG_TYPE	,
		"Ensures debug_value's that have been stackified become stack relative"	,
		false	,
		false	)

Definition at line 53 of file WebAssemblyDebugFixup.cpp.

References llvm::createWebAssemblyDebugFixupLegacyPass(), and DEBUG_TYPE.

setDanglingDebugValuesUndef()

void setDanglingDebugValuesUndef ( MachineBasicBlock & MBB, const TargetInstrInfo * TII )

static

Definition at line 68 of file WebAssemblyDebugFixup.cpp.

References llvm::dbgs(), LLVM_DEBUG, llvm::make_early_inc_range(), MBB, MI, and TII.

Referenced by debugFixup().