SIMemoryLegalizer.cpp File Reference

Memory legalizer - implements memory model. More...

#include "AMDGPU.h"
#include "AMDGPUMachineModuleInfo.h"
#include "GCNSubtarget.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "llvm/ADT/BitmaskEnum.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachinePassManager.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/MemoryModelRelaxationAnnotations.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Support/AMDGPUAddrSpace.h"
#include "llvm/Support/AtomicOrdering.h"
#include "llvm/TargetParser/TargetParser.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "si-memory-legalizer"
#define	PASS_NAME   "SI Memory Legalizer"

Functions
static bool	isNonVolatileMemoryAccess (const MachineInstr &MI)
static bool	canUseBUFFER_WBINVL1_VOL (const GCNSubtarget &ST)

Variables
static cl::opt< bool >	AmdgcnSkipCacheInvalidations ("amdgcn-skip-cache-invalidations", cl::init(false), cl::Hidden, cl::desc("Use this to skip inserting cache invalidating instructions."))

Detailed Description

Memory legalizer - implements memory model.

More information can be found here: http://llvm.org/docs/AMDGPUUsage.html#memory-model

Definition in file SIMemoryLegalizer.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "si-memory-legalizer"

Definition at line 35 of file SIMemoryLegalizer.cpp.

PASS_NAME

#define PASS_NAME   "SI Memory Legalizer"

Definition at line 36 of file SIMemoryLegalizer.cpp.

Function Documentation

canUseBUFFER_WBINVL1_VOL()

bool canUseBUFFER_WBINVL1_VOL ( const GCNSubtarget & ST )

static

Definition at line 1279 of file SIMemoryLegalizer.cpp.

References llvm::AMDGPUSubtarget::SOUTHERN_ISLANDS.

isNonVolatileMemoryAccess()

bool isNonVolatileMemoryAccess ( const MachineInstr & MI )

static

Returns

true if MI has one or more MMO, and all of them are fit for being marked as non-volatile. This means that either they are accessing the constant address space, are accessing a known invariant memory location, or that they are marked with the non-volatile metadata/MMO flag.

Definition at line 912 of file SIMemoryLegalizer.cpp.

References llvm::all_of(), and MI.

Variable Documentation

AmdgcnSkipCacheInvalidations

cl::opt< bool > AmdgcnSkipCacheInvalidations("amdgcn-skip-cache-invalidations", cl::init(false), cl::Hidden, cl::desc("Use this to skip inserting cache invalidating instructions.")) ( "amdgcn-skip-cache-invalidations" , cl::init(false) , cl::Hidden , cl::desc("Use this to skip inserting cache invalidating instructions.")  )

static