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rocm-systems/hipamd/src/Cuda2Hip.cpp
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/*
Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
/**
* @file Cuda2Hip.cpp
*
* This file is compiled and linked into clang based hipify tool.
*/
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Lex/Lexer.h"
#include "clang/Tooling/CommonOptionsParser.h"
#include "clang/Tooling/Refactoring.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/Debug.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
#include "clang/Rewrite/Core/Rewriter.h"
#include "clang/Lex/MacroInfo.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Lex/PPCallbacks.h"
#include <fstream>
#include <cstdio>
using namespace clang;
using namespace clang::ast_matchers;
using namespace clang::tooling;
using namespace llvm;
#define DEBUG_TYPE "cuda2hip"
namespace {
struct hipName {
hipName() {
// defines
cuda2hipRename["__CUDACC__"] = "__HIPCC__";
// includes
cuda2hipRename["cuda_runtime.h"] = "hip_runtime.h";
cuda2hipRename["cuda_runtime_api.h"] = "hip_runtime_api.h";
// Error codes and return types:
cuda2hipRename["cudaError_t"] = "hipError_t";
cuda2hipRename["cudaError"] = "hipError";
cuda2hipRename["cudaSuccess"] = "hipSuccess";
cuda2hipRename["cudaErrorUnknown"] = "hipErrorUnknown";
cuda2hipRename["cudaErrorMemoryAllocation"] = "hipErrorMemoryAllocation";
cuda2hipRename["cudaErrorMemoryFree"] = "hipErrorMemoryFree";
cuda2hipRename["cudaErrorUnknownSymbol"] = "hipErrorUnknownSymbol";
cuda2hipRename["cudaErrorOutOfResources"] = "hipErrorOutOfResources";
cuda2hipRename["cudaErrorInvalidValue"] = "hipErrorInvalidValue";
cuda2hipRename["cudaErrorInvalidResourceHandle"] = "hipErrorInvalidResourceHandle";
cuda2hipRename["cudaErrorInvalidDevice"] = "hipErrorInvalidDevice";
cuda2hipRename["cudaErrorNoDevice"] = "hipErrorNoDevice";
cuda2hipRename["cudaErrorNotReady"] = "hipErrorNotReady";
cuda2hipRename["cudaErrorUnknown"] = "hipErrorUnknown";
// error APIs:
cuda2hipRename["cudaGetLastError"] = "hipGetLastError";
cuda2hipRename["cudaPeekAtLastError"] = "hipPeekAtLastError";
cuda2hipRename["cudaGetErrorName"] = "hipGetErrorName";
cuda2hipRename["cudaGetErrorString"] = "hipGetErrorString";
// Memcpy
cuda2hipRename["cudaMemcpy"] = "hipMemcpy";
cuda2hipRename["cudaMemcpyHostToHost"] = "hipMemcpyHostToHost";
cuda2hipRename["cudaMemcpyHostToDevice"] = "hipMemcpyHostToDevice";
cuda2hipRename["cudaMemcpyDeviceToHost"] = "hipMemcpyDeviceToHost";
cuda2hipRename["cudaMemcpyDeviceToDevice"] = "hipMemcpyDeviceToDevice";
cuda2hipRename["cudaMemcpyDefault"] = "hipMemcpyDefault";
cuda2hipRename["cudaMemcpyToSymbol"] = "hipMemcpyToSymbol";
cuda2hipRename["cudaMemset"] = "hipMemset";
cuda2hipRename["cudaMemsetAsync"] = "hipMemsetAsync";
cuda2hipRename["cudaMemcpyAsync"] = "hipMemcpyAsync";
cuda2hipRename["cudaMemGetInfo"] = "hipMemGetInfo";
cuda2hipRename["cudaMemcpyKind"] = "hipMemcpyKind";
// Memory management :
cuda2hipRename["cudaMalloc"] = "hipMalloc";
cuda2hipRename["cudaMallocHost"] = "hipMallocHost";
cuda2hipRename["cudaFree"] = "hipFree";
cuda2hipRename["cudaFreeHost"] = "hipFreeHost";
// Coordinate Indexing and Dimensions:
cuda2hipRename["threadIdx.x"] = "hipThreadIdx_x";
cuda2hipRename["threadIdx.y"] = "hipThreadIdx_y";
cuda2hipRename["threadIdx.z"] = "hipThreadIdx_z";
cuda2hipRename["blockIdx.x"] = "hipBlockIdx_x";
cuda2hipRename["blockIdx.y"] = "hipBlockIdx_y";
cuda2hipRename["blockIdx.z"] = "hipBlockIdx_z";
cuda2hipRename["blockDim.x"] = "hipBlockDim_x";
cuda2hipRename["blockDim.y"] = "hipBlockDim_y";
cuda2hipRename["blockDim.z"] = "hipBlockDim_z";
cuda2hipRename["gridDim.x"] = "hipGridDim_x";
cuda2hipRename["gridDim.y"] = "hipGridDim_y";
cuda2hipRename["gridDim.z"] = "hipGridDim_z";
cuda2hipRename["blockIdx.x"] = "hipBlockIdx_x";
cuda2hipRename["blockIdx.y"] = "hipBlockIdx_y";
cuda2hipRename["blockIdx.z"] = "hipBlockIdx_z";
cuda2hipRename["blockDim.x"] = "hipBlockDim_x";
cuda2hipRename["blockDim.y"] = "hipBlockDim_y";
cuda2hipRename["blockDim.z"] = "hipBlockDim_z";
cuda2hipRename["gridDim.x"] = "hipGridDim_x";
cuda2hipRename["gridDim.y"] = "hipGridDim_y";
cuda2hipRename["gridDim.z"] = "hipGridDim_z";
cuda2hipRename["warpSize"] = "hipWarpSize";
// Events
cuda2hipRename["cudaEvent_t"] = "hipEvent_t";
cuda2hipRename["cudaEventCreate"] = "hipEventCreate";
cuda2hipRename["cudaEventCreateWithFlags"] = "hipEventCreateWithFlags";
cuda2hipRename["cudaEventDestroy"] = "hipEventDestroy";
cuda2hipRename["cudaEventRecord"] = "hipEventRecord";
cuda2hipRename["cudaEventElapsedTime"] = "hipEventElapsedTime";
cuda2hipRename["cudaEventSynchronize"] = "hipEventSynchronize";
// Streams
cuda2hipRename["cudaStream_t"] = "hipStream_t";
cuda2hipRename["cudaStreamCreate"] = "hipStreamCreate";
cuda2hipRename["cudaStreamCreateWithFlags"] = "hipStreamCreateWithFlags";
cuda2hipRename["cudaStreamDestroy"] = "hipStreamDestroy";
cuda2hipRename["cudaStreamWaitEvent"] = "hipStreamWaitEven";
cuda2hipRename["cudaStreamSynchronize"] = "hipStreamSynchronize";
cuda2hipRename["cudaStreamDefault"] = "hipStreamDefault";
cuda2hipRename["cudaStreamNonBlocking"] = "hipStreamNonBlocking";
// Other synchronization
cuda2hipRename["cudaDeviceSynchronize"] = "hipDeviceSynchronize";
cuda2hipRename["cudaThreadSynchronize"] = "hipDeviceSynchronize"; // translate deprecated cudaThreadSynchronize
cuda2hipRename["cudaDeviceReset"] = "hipDeviceReset";
cuda2hipRename["cudaThreadExit"] = "hipDeviceReset"; // translate deprecated cudaThreadExit
cuda2hipRename["cudaSetDevice"] = "hipSetDevice";
cuda2hipRename["cudaGetDevice"] = "hipGetDevice";
// Device
cuda2hipRename["cudaDeviceProp"] = "hipDeviceProp_t";
cuda2hipRename["cudaGetDeviceProperties"] = "hipDeviceGetProperties";
// Cache config
cuda2hipRename["cudaDeviceSetCacheConfig"] = "hipDeviceSetCacheConfig";
cuda2hipRename["cudaThreadSetCacheConfig"] = "hipDeviceSetCacheConfig"; // translate deprecated
cuda2hipRename["cudaDeviceGetCacheConfig"] = "hipDeviceGetCacheConfig";
cuda2hipRename["cudaThreadGetCacheConfig"] = "hipDeviceGetCacheConfig"; // translate deprecated
cuda2hipRename["cudaFuncCache"] = "hipFuncCache";
cuda2hipRename["cudaFuncCachePreferNone"] = "hipFuncCachePreferNone";
cuda2hipRename["cudaFuncCachePreferShared"] = "hipFuncCachePreferShared";
cuda2hipRename["cudaFuncCachePreferL1"] = "hipFuncCachePreferL1";
cuda2hipRename["cudaFuncCachePreferEqual"] = "hipFuncCachePreferEqual";
// function
cuda2hipRename["cudaFuncSetCacheConfig"] = "hipFuncSetCacheConfig";
cuda2hipRename["cudaDriverGetVersion"] = "hipDriverGetVersion";
// Peer2Peer
cuda2hipRename["cudaDeviceCanAccessPeer"] = "hipDeviceCanAccessPeer";
cuda2hipRename["cudaDeviceDisablePeerAccess"] = "hipDeviceDisablePeerAccess";
cuda2hipRename["cudaDeviceEnablePeerAccess"] = "hipDeviceEnablePeerAccess";
cuda2hipRename["cudaMemcpyPeerAsync"] = "hipMemcpyPeerAsync";
cuda2hipRename["cudaMemcpyPeer"] = "hipMemcpyPeer";
// Shared mem:
cuda2hipRename["cudaDeviceSetSharedMemConfig"] = "hipDeviceSetSharedMemConfig";
cuda2hipRename["cudaThreadSetSharedMemConfig"] = "hipDeviceSetSharedMemConfig"; // translate deprecated
cuda2hipRename["cudaDeviceGetSharedMemConfig"] = "hipDeviceGetSharedMemConfig";
cuda2hipRename["cudaThreadGetSharedMemConfig"] = "hipDeviceGetSharedMemConfig"; // translate deprecated
cuda2hipRename["cudaSharedMemConfig"] = "hipSharedMemConfig";
cuda2hipRename["cudaSharedMemBankSizeDefault"] = "hipSharedMemBankSizeDefault";
cuda2hipRename["cudaSharedMemBankSizeFourByte"] = "hipSharedMemBankSizeFourByte";
cuda2hipRename["cudaSharedMemBankSizeEightByte"] = "hipSharedMemBankSizeEightByte";
cuda2hipRename["cudaGetDeviceCount"] = "hipGetDeviceCount";
// Profiler
//cuda2hipRename["cudaProfilerInitialize"] = "hipProfilerInitialize"; // see if these are called anywhere.
cuda2hipRename["cudaProfilerStart"] = "hipProfilerStart";
cuda2hipRename["cudaProfilerStop"] = "hipProfilerStop";
cuda2hipRename["cudaChannelFormatDesc"] = "hipChannelFormatDesc";
cuda2hipRename["cudaFilterModePoint"] = "hipFilterModePoint";
cuda2hipRename["cudaReadModeElementType"] = "hipReadModeElementType";
cuda2hipRename["cudaCreateChannelDesc"] = "hipCreateChannelDesc";
cuda2hipRename["cudaBindTexture"] = "hipBindTexture";
cuda2hipRename["cudaUnbindTexture"] = "hipUnbindTexture";
}
DenseMap<StringRef, StringRef> cuda2hipRename;
};
struct HipifyPPCallbacks : public PPCallbacks, public SourceFileCallbacks {
HipifyPPCallbacks(Replacements * R)
: SeenEnd(false), _sm(nullptr), Replace(R)
{
}
virtual bool handleBeginSource(CompilerInstance &CI, StringRef Filename) override
{
Preprocessor &PP = CI.getPreprocessor();
SourceManager & SM = CI.getSourceManager();
setSourceManager(&SM);
PP.addPPCallbacks(std::unique_ptr<HipifyPPCallbacks>(this));
PP.Retain();
return true;
}
virtual void InclusionDirective(
SourceLocation hash_loc,
const Token &include_token,
StringRef file_name,
bool is_angled,
CharSourceRange filename_range,
const FileEntry *file,
StringRef search_path,
StringRef relative_path,
const clang::Module *imported) override
{
if (_sm->isWrittenInMainFile(hash_loc)) {
if (is_angled) {
if (N.cuda2hipRename.count(file_name)) {
std::string repName = N.cuda2hipRename[file_name];
llvm::errs() << "\nInclude file found: " << file_name << "\n";
llvm::errs() << "\nSourceLocation:"; filename_range.getBegin().dump(*_sm);
llvm::errs() << "\nWill be replaced with " << repName << "\n";
SourceLocation sl = filename_range.getBegin();
SourceLocation sle = filename_range.getEnd();
const char* B = _sm->getCharacterData(sl);
const char* E = _sm->getCharacterData(sle);
repName = "<" + repName + ">";
Replacement Rep(*_sm, sl, E - B, repName);
Replace->insert(Rep);
}
}
}
}
virtual void MacroDefined(const Token &MacroNameTok,
const MacroDirective *MD) override
{
if (_sm->isWrittenInMainFile(MD->getLocation()) &&
MD->getKind() == MacroDirective::MD_Define)
{
for (auto T : MD->getMacroInfo()->tokens())
{
if (T.isAnyIdentifier()) {
StringRef name = T.getIdentifierInfo()->getName();
if (N.cuda2hipRename.count(name)) {
StringRef repName = N.cuda2hipRename[name];
llvm::errs() << "\nIdentifier " << name
<< " found in definition of macro " << MacroNameTok.getIdentifierInfo()->getName() << "\n";
llvm::errs() << "\nwill be replaced with: " << repName << "\n";
SourceLocation sl = T.getLocation();
llvm::errs() << "\nSourceLocation: ";sl.dump(*_sm);
llvm::errs() << "\n";
Replacement Rep(*_sm, sl, name.size(), repName);
Replace->insert(Rep);
}
}
}
}
}
void EndOfMainFile() override
{
}
bool SeenEnd;
void setSourceManager(SourceManager * sm) { _sm = sm; }
private:
SourceManager * _sm;
Replacements * Replace;
struct hipName N;
};
class Cuda2HipCallback : public MatchFinder::MatchCallback {
public:
Cuda2HipCallback(Replacements *Replace) : Replace(Replace) {}
void run(const MatchFinder::MatchResult &Result) override {
SourceManager * SM = Result.SourceManager;
if (const CallExpr * call = Result.Nodes.getNodeAs<clang::CallExpr>("cudaCall"))
{
const FunctionDecl * funcDcl = call->getDirectCallee();
std::string name = funcDcl->getDeclName().getAsString();
if (N.cuda2hipRename.count(name)) {
std::string repName = N.cuda2hipRename[name];
SourceLocation sl = call->getLocStart();
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.length(), repName);
Replace->insert(Rep);
}
}
if (const CUDAKernelCallExpr * launchKernel = Result.Nodes.getNodeAs<clang::CUDAKernelCallExpr>("cudaLaunchKernel"))
{
LangOptions DefaultLangOptions;
StringRef initialParamList;
SmallString<40> XStr;
raw_svector_ostream OS(XStr);
OS << "hipLaunchParm lp";
const FunctionDecl * kernelDecl = launchKernel->getDirectCallee();
SourceLocation l1 = kernelDecl->getNameInfo().getLocStart();
l1.dump(*SM);llvm::outs() << "\n";
SourceLocation kernelArgListStart = clang::Lexer::findLocationAfterToken(l1, clang::tok::l_paren, *SM, DefaultLangOptions, true);
kernelArgListStart.dump(*SM);llvm::outs() << "\n";
size_t replacementLength = 0;
if (kernelDecl->getNumParams() > 0) {
//const ParmVarDecl * pvdFirst = kernelDecl->getParamDecl(0);
const ParmVarDecl * pvdLast = kernelDecl->getParamDecl(kernelDecl->getNumParams()-1);
//kernelArgListStart = SourceLocation(pvdFirst->getLocStart());
SourceLocation kernelArgListEnd = SourceLocation(pvdLast->getLocEnd());
SourceLocation stop = clang::Lexer::getLocForEndOfToken(kernelArgListEnd, 0, *SM, DefaultLangOptions);
replacementLength = SM->getCharacterData(stop) - SM->getCharacterData(kernelArgListStart);
initialParamList = StringRef(SM->getCharacterData(kernelArgListStart), replacementLength);
OS << ", " << initialParamList;
}
llvm::outs() << "initial paramlist: " << initialParamList << "\n";
llvm::outs() << "new paramlist: " << OS.str() << "\n";
Replacement Rep0(*(Result.SourceManager), kernelArgListStart, replacementLength, OS.str());
Replace->insert(Rep0);
XStr.clear();
OS << "hipLaunchKernel(HIP_KERNEL_NAME(" << kernelDecl->getName() << "), ";
const CallExpr * config = launchKernel->getConfig();
llvm::outs() << "\nKernel config arguments:\n";
for (unsigned argno = 0; argno < config->getNumArgs(); argno++)
{
const Expr * arg = config->getArg(argno);
if (!isa<CXXDefaultArgExpr>(arg)) {
const ParmVarDecl * pvd = config->getDirectCallee()->getParamDecl(argno);
SourceLocation sl(arg->getLocStart());
SourceLocation el(arg->getLocEnd());
SourceLocation stop = clang::Lexer::getLocForEndOfToken(el, 0, *SM, DefaultLangOptions);
StringRef outs(SM->getCharacterData(sl), SM->getCharacterData(stop) - SM->getCharacterData(sl));
llvm::outs() << "args[ " << argno << "]" << outs << " <" << pvd->getType().getAsString() << ">\n";
if (pvd->getType().getAsString().compare("dim3") == 0)
OS << " dim3(" << outs << "),";
else
OS << " " << outs << ",";
} else
OS << " 0,";
}
for (unsigned argno = 0; argno < launchKernel->getNumArgs(); argno++)
{
const Expr * arg = launchKernel->getArg(argno);
SourceLocation sl(arg->getLocStart());
SourceLocation el(arg->getLocEnd());
SourceLocation stop = clang::Lexer::getLocForEndOfToken(el, 0, *SM, DefaultLangOptions);
std::string outs(SM->getCharacterData(sl), SM->getCharacterData(stop) - SM->getCharacterData(sl));
llvm::outs() << outs.c_str() << "\n";
OS << " " << outs << ",";
}
XStr.pop_back();
OS << ")";
size_t length = SM->getCharacterData(clang::Lexer::getLocForEndOfToken(launchKernel->getLocEnd(), 0, *SM, DefaultLangOptions)) -
SM->getCharacterData(launchKernel->getLocStart());
Replacement Rep(*SM, launchKernel->getLocStart(), length, OS.str());
Replace->insert(Rep);
}
if (const MemberExpr * threadIdx = Result.Nodes.getNodeAs<clang::MemberExpr>("cudaBuiltin"))
{
if (const OpaqueValueExpr * refBase = dyn_cast<OpaqueValueExpr>(threadIdx->getBase())) {
if (const DeclRefExpr * declRef = dyn_cast<DeclRefExpr>(refBase->getSourceExpr())) {
std::string name = declRef->getDecl()->getNameAsString();
std::string memberName = threadIdx->getMemberDecl()->getNameAsString();
size_t pos = memberName.find_first_not_of("__fetch_builtin_");
memberName = memberName.substr(pos, memberName.length() - pos);
name += "." + memberName;
std::string repName = N.cuda2hipRename[name];
SourceLocation sl = threadIdx->getLocStart();
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.length(), repName);
Replace->insert(Rep);
}
}
}
if (const DeclRefExpr * cudaEnumConstantRef = Result.Nodes.getNodeAs<clang::DeclRefExpr>("cudaEnumConstantRef"))
{
std::string name = cudaEnumConstantRef->getDecl()->getNameAsString();
std::string repName = N.cuda2hipRename[name];
SourceLocation sl = cudaEnumConstantRef->getLocStart();
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.length(), repName);
Replace->insert(Rep);
}
if (const VarDecl * cudaEnumConstantDecl = Result.Nodes.getNodeAs<clang::VarDecl>("cudaEnumConstantDecl"))
{
std::string name = cudaEnumConstantDecl->getType()->getAsTagDecl()->getNameAsString();
std::string repName = N.cuda2hipRename[name];
SourceLocation sl = cudaEnumConstantDecl->getLocStart();
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.length(), repName);
Replace->insert(Rep);
}
if (const VarDecl * cudaStructVar = Result.Nodes.getNodeAs<clang::VarDecl>("cudaStructVar"))
{
std::string name =
cudaStructVar->getType()->getAsStructureType()->getDecl()->getNameAsString();
std::string repName = N.cuda2hipRename[name];
SourceLocation sl = cudaStructVar->getLocStart();
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.length(), repName);
Replace->insert(Rep);
}
if (const ParmVarDecl * cudaParamDecl = Result.Nodes.getNodeAs<clang::ParmVarDecl>("cudaParamDecl"))
{
QualType QT = cudaParamDecl->getOriginalType();
std::string name = QT.getAsString();
std::string repName = N.cuda2hipRename[name];
SourceLocation sl = cudaParamDecl->getLocStart();
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.length(), repName);
Replace->insert(Rep);
}
if (const StringLiteral * stringLiteral = Result.Nodes.getNodeAs<clang::StringLiteral>("stringLiteral"))
{
StringRef s = stringLiteral->getString();
size_t begin = 0;
while ((begin = s.find("cuda", begin)) != StringRef::npos) {
const size_t end = s.find_first_of(" ", begin + 4);
StringRef name = s.slice(begin, end);
llvm::outs() << "\nToken: <" << name << "> found in string literal " << s << "\n";
StringRef repName = N.cuda2hipRename[name];
if (!repName.empty()) {
llvm::outs() << "\nWill be replaced with: <" << repName << "\n";
SourceLocation sl = stringLiteral->getLocationOfByte(begin, *SM,
Result.Context->getLangOpts(), Result.Context->getTargetInfo());
Replacement Rep(*SM, SM->isMacroArgExpansion(sl) ?
SM->getImmediateSpellingLoc(sl) : sl, name.size(), repName);
Replace->insert(Rep);
}
if (end == StringRef::npos) break;
begin = end + 1;
}
}
}
private:
Replacements *Replace;
struct hipName N;
};
} // end anonymous namespace
// Set up the command line options
static cl::OptionCategory ToolTemplateCategory("CUDA to HIP source translator options");
static cl::extrahelp MoreHelp( "<source0> specify the path of source file\n\n" );
static cl::opt<std::string>
OutputFilename("o", cl::desc("Output filename"), cl::value_desc("filename"), cl::cat(ToolTemplateCategory));
int main(int argc, const char **argv) {
llvm::sys::PrintStackTraceOnErrorSignal();
int Result;
CommonOptionsParser OptionsParser(argc, argv, ToolTemplateCategory, llvm::cl::Required);
std::string dst = OutputFilename;
std::vector<std::string> fileSources = OptionsParser.getSourcePathList();
if (dst.empty()) {
dst = fileSources[0];
size_t pos = dst.find(".cu");
if (pos != std::string::npos) {
dst = dst.substr(0, pos) + ".hip.cu";
} else {
llvm::errs() << "Input .cu file was not specified.\n";
return 1;
}
} else {
dst += ".cu";
}
std::ifstream source(fileSources[0], std::ios::binary);
std::ofstream dest(dst, std::ios::binary);
dest << source.rdbuf();
source.close();
dest.close();
RefactoringTool Tool(OptionsParser.getCompilations(), dst);
ast_matchers::MatchFinder Finder;
Cuda2HipCallback Callback(&Tool.getReplacements());
HipifyPPCallbacks PPCallbacks(&Tool.getReplacements());
Finder.addMatcher(callExpr(isExpansionInMainFile(), callee(functionDecl(matchesName("cuda.*")))).bind("cudaCall"), &Callback);
Finder.addMatcher(cudaKernelCallExpr().bind("cudaLaunchKernel"), &Callback);
Finder.addMatcher(memberExpr(isExpansionInMainFile(), hasObjectExpression(hasType(cxxRecordDecl(matchesName("__cuda_builtin_"))))).bind("cudaBuiltin"), &Callback);
Finder.addMatcher(declRefExpr(isExpansionInMainFile(), to(enumConstantDecl(matchesName("cuda.*")))).bind("cudaEnumConstantRef"), &Callback);
Finder.addMatcher(varDecl(isExpansionInMainFile(), hasType(enumDecl(matchesName("cuda.*")))).bind("cudaEnumConstantDecl"), &Callback);
Finder.addMatcher(varDecl(isExpansionInMainFile(), hasType(cxxRecordDecl(matchesName("cuda.*")))).bind("cudaStructVar"), &Callback);
Finder.addMatcher(parmVarDecl(isExpansionInMainFile(), hasType(namedDecl(matchesName("cuda.*")))).bind("cudaParamDecl"), &Callback);
Finder.addMatcher(stringLiteral().bind("stringLiteral"), &Callback);
auto action = newFrontendActionFactory(&Finder, &PPCallbacks);
std::vector<const char *> compilationStages;
compilationStages.push_back("--cuda-host-only");
compilationStages.push_back("--cuda-device-only");
for (auto Stage : compilationStages)
{
Tool.appendArgumentsAdjuster(combineAdjusters(
getInsertArgumentAdjuster(Stage, ArgumentInsertPosition::BEGIN),
getClangSyntaxOnlyAdjuster()));
Result = Tool.run(action.get());
Tool.clearArgumentsAdjusters();
}
LangOptions DefaultLangOptions;
IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
DiagnosticsEngine Diagnostics(
IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()),
&*DiagOpts, &DiagnosticPrinter, false);
SourceManager Sources(Diagnostics, Tool.getFiles());
llvm::outs() << "Replacements collected by the tool:\n";
for (auto &r : Tool.getReplacements()) {
llvm::outs() << r.toString() << "\n";
}
Rewriter Rewrite(Sources, DefaultLangOptions);
if (!Tool.applyAllReplacements(Rewrite)) {
llvm::errs() << "Skipped some replacements.\n";
}
Result = Rewrite.overwriteChangedFiles();
{
size_t pos = dst.find(".cu");
if (pos != std::string::npos)
{
rename(dst.c_str(), dst.substr(0, pos).c_str());
}
}
return Result;
}
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