SafepointIRVerifier.cpp File Reference

#include "llvm/IR/SafepointIRVerifier.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/ADT/SetOperations.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Statepoint.h"
#include "llvm/IR/Value.h"
#include "llvm/InitializePasses.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

Go to the source code of this file.

Classes
struct	BasicBlockState
	State we compute and track per basic block. More...

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

Macros
#define	DEBUG_TYPE   "safepoint-ir-verifier"

Typedefs
using	AvailableValueSet = DenseSet< const Value * >
	The verifier algorithm is phrased in terms of availability.

Enumerations
enum	BaseType { NonConstant = 1 , ExclusivelyNull , ExclusivelySomeConstant }
	A given derived pointer can have multiple base pointers through phi/selects. More...

Functions
static void	Verify (const Function &F, const DominatorTree &DT, const CFGDeadness &CD)
	INITIALIZE_PASS_BEGIN (SafepointIRVerifier, "verify-safepoint-ir", "Safepoint IR Verifier", false, false) INITIALIZE_PASS_END(SafepointIRVerifier
verify safepoint Safepoint IR static false bool	isGCPointerType (Type *T)
static bool	containsGCPtrType (Type *Ty)
template<typename IteratorTy >
static void	PrintValueSet (raw_ostream &OS, IteratorTy Begin, IteratorTy End)
static enum BaseType	getBaseType (const Value *Val)
	Return the baseType for Val which states whether Val is exclusively derived from constant/null, or not exclusively derived from constant.
static bool	isNotExclusivelyConstantDerived (const Value *V)

Variables
static cl::opt< bool >	PrintOnly ("safepoint-ir-verifier-print-only", cl::init(false))
	This option is used for writing test cases.
verify safepoint	ir
verify safepoint Safepoint IR	Verifier
verify safepoint Safepoint IR	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "safepoint-ir-verifier"

Definition at line 51 of file SafepointIRVerifier.cpp.

Typedef Documentation

AvailableValueSet

using AvailableValueSet = DenseSet<const Value *>

The verifier algorithm is phrased in terms of availability.

The set of values "available" at a given point in the control flow graph is the set of correctly relocated value at that point, and is a subset of the set of definitions dominating that point.

Definition at line 290 of file SafepointIRVerifier.cpp.

Enumeration Type Documentation

BaseType

enum BaseType

A given derived pointer can have multiple base pointers through phi/selects.

This type indicates when the base pointer is exclusively constant (ExclusivelySomeConstant), and if that constant is proven to be exclusively null, we record that as ExclusivelyNull. In all other cases, the BaseType is NonConstant.

Enumerator
NonConstant
ExclusivelyNull
ExclusivelySomeConstant

Definition at line 314 of file SafepointIRVerifier.cpp.

Function Documentation

containsGCPtrType()

static bool containsGCPtrType ( Type *  Ty )

static

Definition at line 262 of file SafepointIRVerifier.cpp.

References llvm::any_of(), containsGCPtrType(), and isGCPointerType().

Referenced by containsGCPtrType(), and isUnhandledGCPointerType().

getBaseType()

static enum BaseType getBaseType ( const Value *  Val )

static

Return the baseType for Val which states whether Val is exclusively derived from constant/null, or not exclusively derived from constant.

Val is exclusively derived off a constant base when all operands of phi and selects are derived off a constant base.

Definition at line 326 of file SafepointIRVerifier.cpp.

References llvm::append_range(), llvm::SmallVectorBase< Size_T >::empty(), ExclusivelyNull, ExclusivelySomeConstant, GEP, llvm::Constant::getNullValue(), llvm::PHINode::incoming_values(), llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::insert(), NonConstant, llvm::SmallVectorImpl< T >::pop_back_val(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::DwarfUnit::getOrCreateTypeDIE(), and isNotExclusivelyConstantDerived().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	SafepointIRVerifier	,
		"verify-safepoint-ir"	,
		"Safepoint IR Verifier"	,
		false	,
		false
	)

isGCPointerType()

verify safepoint Safepoint IR static false bool isGCPointerType ( Type *  T )

static

Definition at line 253 of file SafepointIRVerifier.cpp.

Referenced by containsGCPtrType(), and isHandledGCPointerType().

isNotExclusivelyConstantDerived()

static bool isNotExclusivelyConstantDerived ( const Value *  V )

static

Definition at line 390 of file SafepointIRVerifier.cpp.

References getBaseType(), and NonConstant.

PrintValueSet()

template<typename IteratorTy >

static void PrintValueSet ( raw_ostream &  OS, IteratorTy  Begin, IteratorTy  End  )

static

Definition at line 276 of file SafepointIRVerifier.cpp.

References End, and OS.

Verify()

static void Verify ( const Function &  F, const DominatorTree &  DT, const CFGDeadness &  CD  )

static

Definition at line 890 of file SafepointIRVerifier.cpp.

References llvm::dbgs(), F, LLVM_DEBUG, PrintOnly, and Verifier.

Variable Documentation

false

verify safepoint Safepoint IR false

Definition at line 251 of file SafepointIRVerifier.cpp.

ir

verify safepoint ir

Definition at line 250 of file SafepointIRVerifier.cpp.

PrintOnly

cl::opt< bool > PrintOnly("safepoint-ir-verifier-print-only", cl::init(false)) ( "safepoint-ir-verifier-print-only"  , cl::init(false)    )

static

This option is used for writing test cases.

Instead of crashing the program when verification fails, report a message to the console (for FileCheck usage) and continue execution as if nothing happened.

Referenced by Verify().

Verifier

verify safepoint Safepoint IR Verifier

Definition at line 251 of file SafepointIRVerifier.cpp.

Referenced by llvm::AMDGPUTargetAsmStreamer::EmitHSAMetadata(), llvm::AMDGPUTargetELFStreamer::EmitHSAMetadata(), llvm::IRTranslator::runOnMachineFunction(), Verify(), llvm::verifyFunction(), and llvm::verifyModule().