SWIGEXPORT void JNICALL Java_org_jllvm_bindings_ScalarJNI_LLVMAddBasicAliasAnalysisPass(JNIEnv *jenv, jclass jcls, jlong jarg1) { LLVMPassManagerRef arg1 = (LLVMPassManagerRef) 0 ; (void)jenv; (void)jcls; arg1 = *(LLVMPassManagerRef *)&jarg1; LLVMAddBasicAliasAnalysisPass(arg1); }
void JITImpl::init() { if (initialized) return; LLVMLinkInJIT(); LLVMInitializeNativeTarget(); LLVMMemoryBufferRef memBuffer = LLVMExtraCreateMemoryBufferWithPtr(instructionBitcode, instructionBitcodeSize); char *outMessage; if (LLVMParseBitcode(memBuffer, &module, &outMessage)) { std::cerr << "Error loading bitcode: " << outMessage << '\n'; std::abort(); } // TODO experiment with opt level. if (LLVMCreateJITCompilerForModule(&executionEngine, module, 1, &outMessage)) { std::cerr << "Error creating JIT compiler: " << outMessage << '\n'; std::abort(); } builder = LLVMCreateBuilder(); LLVMValueRef callee = LLVMGetNamedFunction(module, "jitInstructionTemplate"); assert(callee && "jitInstructionTemplate() not found in module"); jitFunctionType = LLVMGetElementType(LLVMTypeOf(callee)); functions.init(module); FPM = LLVMCreateFunctionPassManagerForModule(module); LLVMAddTargetData(LLVMGetExecutionEngineTargetData(executionEngine), FPM); LLVMAddBasicAliasAnalysisPass(FPM); LLVMAddJumpThreadingPass(FPM); LLVMAddGVNPass(FPM); LLVMAddJumpThreadingPass(FPM); LLVMAddCFGSimplificationPass(FPM); LLVMAddDeadStoreEliminationPass(FPM); LLVMAddInstructionCombiningPass(FPM); LLVMInitializeFunctionPassManager(FPM); if (DEBUG_JIT) { LLVMExtraRegisterJitDisassembler(executionEngine, LLVMGetTarget(module)); } initialized = true; }
int main(int c, char **v) { LLVMContextRef *contexts; LLVMModuleRef *modules; char *error; const char *mode = "opt"; const char **filenames; unsigned numFiles; unsigned i; bool moreOptions; static int verboseFlag = 0; static int timingFlag = 0; static int disassembleFlag = 0; bool manyContexts = true; double beforeAll; if (c == 1) usage(); moreOptions = true; while (moreOptions) { static struct option longOptions[] = { {"verbose", no_argument, &verboseFlag, 1}, {"timing", no_argument, &timingFlag, 1}, {"disassemble", no_argument, &disassembleFlag, 1}, {"mode", required_argument, 0, 0}, {"contexts", required_argument, 0, 0}, {"help", no_argument, 0, 0} }; int optionIndex; int optionValue; optionValue = getopt_long(c, v, "", longOptions, &optionIndex); switch (optionValue) { case -1: moreOptions = false; break; case 0: { const char* thisOption = longOptions[optionIndex].name; if (!strcmp(thisOption, "help")) usage(); if (!strcmp(thisOption, "contexts")) { if (!strcasecmp(optarg, "one")) manyContexts = false; else if (!strcasecmp(optarg, "many")) manyContexts = true; else { fprintf(stderr, "Invalid argument for --contexts.\n"); exit(1); } break; } if (!strcmp(thisOption, "mode")) { mode = strdup(optarg); break; } break; } case '?': exit(0); break; default: printf("optionValue = %d\n", optionValue); abort(); break; } } LLVMLinkInMCJIT(); LLVMInitializeNativeTarget(); LLVMInitializeX86AsmPrinter(); LLVMInitializeX86Disassembler(); filenames = (const char **)(v + optind); numFiles = c - optind; contexts = malloc(sizeof(LLVMContextRef) * numFiles); modules = malloc(sizeof(LLVMModuleRef) * numFiles); if (manyContexts) { for (i = 0; i < numFiles; ++i) contexts[i] = LLVMContextCreate(); } else { LLVMContextRef context = LLVMContextCreate(); for (i = 0; i < numFiles; ++i) contexts[i] = context; } for (i = 0; i < numFiles; ++i) { LLVMMemoryBufferRef buffer; const char* filename = filenames[i]; if (LLVMCreateMemoryBufferWithContentsOfFile(filename, &buffer, &error)) { fprintf(stderr, "Error reading file %s: %s\n", filename, error); exit(1); } if (LLVMParseBitcodeInContext(contexts[i], buffer, modules + i, &error)) { fprintf(stderr, "Error parsing file %s: %s\n", filename, error); exit(1); } LLVMDisposeMemoryBuffer(buffer); if (verboseFlag) { printf("Module #%u (%s) after parsing:\n", i, filename); LLVMDumpModule(modules[i]); } } if (verboseFlag) printf("Generating code for modules...\n"); if (timingFlag) beforeAll = currentTime(); for (i = 0; i < numFiles; ++i) { LLVMModuleRef module; LLVMExecutionEngineRef engine; struct LLVMMCJITCompilerOptions options; LLVMValueRef value; LLVMPassManagerRef functionPasses = 0; LLVMPassManagerRef modulePasses = 0; double before; if (timingFlag) before = currentTime(); module = modules[i]; LLVMInitializeMCJITCompilerOptions(&options, sizeof(options)); options.OptLevel = 2; options.EnableFastISel = 0; options.MCJMM = LLVMCreateSimpleMCJITMemoryManager( 0, mmAllocateCodeSection, mmAllocateDataSection, mmApplyPermissions, mmDestroy); if (LLVMCreateMCJITCompilerForModule(&engine, module, &options, sizeof(options), &error)) { fprintf(stderr, "Error building MCJIT: %s\n", error); exit(1); } if (!strcasecmp(mode, "simple")) { modulePasses = LLVMCreatePassManager(); LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), modulePasses); LLVMAddConstantPropagationPass(modulePasses); LLVMAddInstructionCombiningPass(modulePasses); LLVMAddPromoteMemoryToRegisterPass(modulePasses); LLVMAddBasicAliasAnalysisPass(modulePasses); LLVMAddTypeBasedAliasAnalysisPass(modulePasses); LLVMAddGVNPass(modulePasses); LLVMAddCFGSimplificationPass(modulePasses); LLVMRunPassManager(modulePasses, module); } else if (!strcasecmp(mode, "opt")) { LLVMPassManagerBuilderRef passBuilder; passBuilder = LLVMPassManagerBuilderCreate(); LLVMPassManagerBuilderSetOptLevel(passBuilder, 2); LLVMPassManagerBuilderSetSizeLevel(passBuilder, 0); functionPasses = LLVMCreateFunctionPassManagerForModule(module); modulePasses = LLVMCreatePassManager(); LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), modulePasses); LLVMPassManagerBuilderPopulateFunctionPassManager(passBuilder, functionPasses); LLVMPassManagerBuilderPopulateModulePassManager(passBuilder, modulePasses); LLVMPassManagerBuilderDispose(passBuilder); LLVMInitializeFunctionPassManager(functionPasses); for (value = LLVMGetFirstFunction(module); value; value = LLVMGetNextFunction(value)) LLVMRunFunctionPassManager(functionPasses, value); LLVMFinalizeFunctionPassManager(functionPasses); LLVMRunPassManager(modulePasses, module); } else { fprintf(stderr, "Bad optimization mode: %s.\n", mode); fprintf(stderr, "Valid modes are: \"simple\" or \"opt\".\n"); exit(1); } if (verboseFlag) { printf("Module #%d (%s) after optimization:\n", i, filenames[i]); LLVMDumpModule(module); } for (value = LLVMGetFirstFunction(module); value; value = LLVMGetNextFunction(value)) { if (LLVMIsDeclaration(value)) continue; LLVMGetPointerToGlobal(engine, value); } if (functionPasses) LLVMDisposePassManager(functionPasses); if (modulePasses) LLVMDisposePassManager(modulePasses); LLVMDisposeExecutionEngine(engine); if (timingFlag) { double after = currentTime(); printf("Module #%d (%s) took %lf ms.\n", i, filenames[i], (after - before) * 1000); } } if (timingFlag) { double after = currentTime(); printf("Compilation took a total of %lf ms.\n", (after - beforeAll) * 1000); } if (disassembleFlag) { LLVMDisasmContextRef disassembler; struct MemorySection *section; disassembler = LLVMCreateDisasm("x86_64-apple-darwin", 0, 0, 0, symbolLookupCallback); if (!disassembler) { fprintf(stderr, "Error building disassembler.\n"); exit(1); } for (section = sectionHead; section; section = section->next) { printf("Disassembly for section %p:\n", section); char pcString[20]; char instructionString[1000]; uint8_t *pc; uint8_t *end; pc = section->start; end = pc + section->size; while (pc < end) { snprintf( pcString, sizeof(pcString), "0x%lx", (unsigned long)(uintptr_t)pc); size_t instructionSize = LLVMDisasmInstruction( disassembler, pc, end - pc, (uintptr_t)pc, instructionString, sizeof(instructionString)); if (!instructionSize) snprintf(instructionString, sizeof(instructionString), ".byte 0x%02x", *pc++); else pc += instructionSize; printf(" %16s: %s\n", pcString, instructionString); } } } return 0; }