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//===-- AMDILGlobalManager.h - TODO: Add brief description -------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
// ==-----------------------------------------------------------------------===//
//
// Class that handles parsing and storing global variables that are relevant to
// the compilation of the module.
//
// ==-----------------------------------------------------------------------===//
#ifndef _AMDILGLOBALMANAGER_H_
#define _AMDILGLOBALMANAGER_H_
#include "AMDIL.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/Module.h"
#include "llvm/Support/raw_ostream.h"
#include <set>
#include <string>
#define CB_BASE_OFFSET 2
namespace llvm {
class PointerType;
class AMDILKernelManager;
class AMDILSubtarget;
class TypeSymbolTable;
class Argument;
class GlobalValue;
class MachineFunction;
/// structure that holds information for a single local/region address array
typedef struct _arrayMemRec {
uint32_t vecSize; // size of each vector
uint32_t offset; // offset into the memory section
bool isHW; // flag to specify if HW is used or SW is used
bool isRegion; // flag to specify if GDS is used or not
} arraymem;
/// Structure that holds information for all local/region address
/// arrays in the kernel
typedef struct _localArgRec {
llvm::SmallVector<arraymem *, DEFAULT_VEC_SLOTS> local;
std::string name; // Kernel Name
} localArg;
/// structure that holds information about a constant address
/// space pointer that is a kernel argument
typedef struct _constPtrRec {
const Value *base;
uint32_t size;
uint32_t offset;
uint32_t cbNum; // value of 0 means that it does not use hw CB
bool isArray;
bool isArgument;
bool usesHardware;
std::string name;
} constPtr;
/// Structure that holds information for each kernel argument
typedef struct _kernelArgRec {
uint32_t reqGroupSize[3];
uint32_t reqRegionSize[3];
llvm::SmallVector<uint32_t, DEFAULT_VEC_SLOTS> argInfo;
bool mHasRWG;
bool mHasRWR;
} kernelArg;
/// Structure that holds information for each kernel
typedef struct _kernelRec {
mutable uint32_t curSize;
mutable uint32_t curRSize;
mutable uint32_t curHWSize;
mutable uint32_t curHWRSize;
uint32_t constSize;
kernelArg *sgv;
localArg *lvgv;
llvm::SmallVector<struct _constPtrRec, DEFAULT_VEC_SLOTS> constPtr;
uint32_t constSizes[HW_MAX_NUM_CB];
llvm::SmallSet<uint32_t, OPENCL_MAX_READ_IMAGES> readOnly;
llvm::SmallSet<uint32_t, OPENCL_MAX_WRITE_IMAGES> writeOnly;
llvm::SmallVector<std::pair<uint32_t, const Constant *>,
DEFAULT_VEC_SLOTS> CPOffsets;
} kernel;
class AMDILGlobalManager {
public:
AMDILGlobalManager(bool debugMode = false);
~AMDILGlobalManager();
/// Process the given module and parse out the global variable metadata passed
/// down from the frontend-compiler
void processModule(const Module &MF, const AMDILTargetMachine* mTM);
/// Returns whether the current name is the name of a kernel function or a
/// normal function
bool isKernel(const llvm::StringRef &name) const;
/// Returns true if the image ID corresponds to a read only image.
bool isReadOnlyImage(const llvm::StringRef &name, uint32_t iID) const;
/// Returns true if the image ID corresponds to a write only image.
bool isWriteOnlyImage(const llvm::StringRef &name, uint32_t iID) const;
/// Returns the number of write only images for the kernel.
uint32_t getNumWriteImages(const llvm::StringRef &name) const;
/// Gets the group size of the kernel for the given dimension.
uint32_t getLocal(const llvm::StringRef &name, uint32_t dim) const;
/// Gets the region size of the kernel for the given dimension.
uint32_t getRegion(const llvm::StringRef &name, uint32_t dim) const;
/// Get the Region memory size in 1d for the given function/kernel.
uint32_t getRegionSize(const llvm::StringRef &name) const;
/// Get the region memory size in 1d for the given function/kernel.
uint32_t getLocalSize(const llvm::StringRef &name) const;
// Get the max group size in one 1D for the given function/kernel.
uint32_t getMaxGroupSize(const llvm::StringRef &name) const;
// Get the max region size in one 1D for the given function/kernel.
uint32_t getMaxRegionSize(const llvm::StringRef &name) const;
/// Get the constant memory size in 1d for the given function/kernel.
uint32_t getConstSize(const llvm::StringRef &name) const;
/// Get the HW local size in 1d for the given function/kernel We need to
/// seperate SW local and HW local for the case where some local memory is
/// emulated in global and some is using the hardware features. The main
/// problem is that in OpenCL 1.0/1.1 cl_khr_byte_addressable_store allows
/// these actions to happen on all memory spaces, but the hardware can only
/// write byte address stores to UAV and LDS, not GDS or Stack.
uint32_t getHWLocalSize(const llvm::StringRef &name) const;
uint32_t getHWRegionSize(const llvm::StringRef &name) const;
/// Get the offset of the array for the kernel.
int32_t getArrayOffset(const llvm::StringRef &name) const;
/// Get the offset of the const memory for the kernel.
int32_t getConstOffset(const llvm::StringRef &name) const;
/// Get the boolean value if this particular constant uses HW or not.
bool getConstHWBit(const llvm::StringRef &name) const;
/// Get a reference to the kernel metadata information for the given function
/// name.
const kernel &getKernel(const llvm::StringRef &name) const;
/// Returns whether a reqd_workgroup_size attribute has been used or not.
bool hasRWG(const llvm::StringRef &name) const;
/// Returns whether a reqd_workregion_size attribute has been used or not.
bool hasRWR(const llvm::StringRef &name) const;
/// Dump the data section to the output stream for the given kernel.
void dumpDataSection(llvm::raw_ostream &O, AMDILKernelManager *km);
/// Iterate through the constants that are global to the compilation unit.
StringMap<constPtr>::iterator consts_begin();
StringMap<constPtr>::iterator consts_end();
/// Query if the kernel has a byte store.
bool byteStoreExists(llvm::StringRef S) const;
/// Query if the kernel and argument uses hardware constant memory.
bool usesHWConstant(const kernel &krnl, const llvm::StringRef &arg);
/// Query if the constant pointer is an argument.
bool isConstPtrArgument(const kernel &krnl, const llvm::StringRef &arg);
/// Query if the constant pointer is an array that is globally scoped.
bool isConstPtrArray(const kernel &krnl, const llvm::StringRef &arg);
/// Query the size of the constant pointer.
uint32_t getConstPtrSize(const kernel &krnl, const llvm::StringRef &arg);
/// Query the offset of the constant pointer.
uint32_t getConstPtrOff(const kernel &krnl, const llvm::StringRef &arg);
/// Query the constant buffer number for a constant pointer.
uint32_t getConstPtrCB(const kernel &krnl, const llvm::StringRef &arg);
/// Query the Value* that the constant pointer originates from.
const Value *getConstPtrValue(const kernel &krnl, const llvm::StringRef &arg);
/// Get the ID of the argument.
int32_t getArgID(const Argument *arg);
/// Get the unique function ID for the specific function name and create a new
/// unique ID if it is not found.
uint32_t getOrCreateFunctionID(const GlobalValue* func);
uint32_t getOrCreateFunctionID(const std::string& func);
/// Calculate the offsets of the constant pool for the given kernel and
/// machine function.
void calculateCPOffsets(const MachineFunction *MF, kernel &krnl);
/// Print the global manager to the output stream.
void print(llvm::raw_ostream& O);
/// Dump the global manager to the output stream - debug use.
void dump();
private:
/// Various functions that parse global value information and store them in
/// the global manager. This approach is used instead of dynamic parsing as it
/// might require more space, but should allow caching of data that gets
/// requested multiple times.
kernelArg parseSGV(const GlobalValue *GV);
localArg parseLVGV(const GlobalValue *GV);
void parseGlobalAnnotate(const GlobalValue *G);
void parseImageAnnotate(const GlobalValue *G);
void parseConstantPtrAnnotate(const GlobalValue *G);
void printConstantValue(const Constant *CAval,
llvm::raw_ostream& O,
bool asByte);
void parseKernelInformation(const Value *V);
void parseAutoArray(const GlobalValue *G, bool isRegion);
void parseConstantPtr(const GlobalValue *G);
void allocateGlobalCB();
void dumpDataToCB(llvm::raw_ostream &O, AMDILKernelManager *km, uint32_t id);
bool checkConstPtrsUseHW(Module::const_iterator *F);
llvm::StringMap<arraymem> mArrayMems;
llvm::StringMap<localArg> mLocalArgs;
llvm::StringMap<kernelArg> mKernelArgs;
llvm::StringMap<kernel> mKernels;
llvm::StringMap<constPtr> mConstMems;
llvm::StringMap<uint32_t> mFuncNames;
llvm::DenseMap<const GlobalValue*, uint32_t> mFuncPtrNames;
llvm::DenseMap<uint32_t, llvm::StringRef> mImageNameMap;
std::set<llvm::StringRef> mByteStore;
std::set<llvm::StringRef> mIgnoreStr;
llvm::DenseMap<const Argument *, int32_t> mArgIDMap;
const char *symTab;
const AMDILSubtarget *mSTM;
size_t mOffset;
uint32_t mReservedBuffs;
uint32_t mCurrentCPOffset;
bool mDebugMode;
};
} // namespace llvm
#endif // __AMDILGLOBALMANAGER_H_
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