119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman//===-- MCJIT.cpp - MC-based Just-in-Time Compiler ------------------------===// 219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman// 319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman// The LLVM Compiler Infrastructure 419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman// 519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman// This file is distributed under the University of Illinois Open Source 619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman// License. See LICENSE.TXT for details. 719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman// 819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman//===----------------------------------------------------------------------===// 919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 1019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "MCJIT.h" 1119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "MCJITMemoryManager.h" 1219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/DerivedTypes.h" 1319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/Function.h" 1419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/ExecutionEngine/GenericValue.h" 1519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/ExecutionEngine/MCJIT.h" 1619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/ExecutionEngine/JITMemoryManager.h" 1719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/MC/MCAsmInfo.h" 1819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/Support/ErrorHandling.h" 1919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/Support/DynamicLibrary.h" 2019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/Support/MemoryBuffer.h" 2119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman#include "llvm/Target/TargetData.h" 2219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 2319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanusing namespace llvm; 2419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 2519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumannamespace { 2619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 2719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanstatic struct RegisterJIT { 2819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RegisterJIT() { MCJIT::Register(); } 2919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} JITRegistrator; 3019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 3119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 3219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 3319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanextern "C" void LLVMLinkInMCJIT() { 3419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 3519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 3619bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanExecutionEngine *MCJIT::createJIT(Module *M, 3719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman std::string *ErrorStr, 3819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman JITMemoryManager *JMM, 3919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman CodeGenOpt::Level OptLevel, 4019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool GVsWithCode, 4119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman TargetMachine *TM) { 4219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Try to register the program as a source of symbols to resolve against. 4319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // 4419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // FIXME: Don't do this here. 4519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman sys::DynamicLibrary::LoadLibraryPermanently(0, NULL); 4619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 4719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // If the target supports JIT code generation, create the JIT. 4819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (TargetJITInfo *TJ = TM->getJITInfo()) 4919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return new MCJIT(M, TM, *TJ, new MCJITMemoryManager(JMM, M), OptLevel, 5019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman GVsWithCode); 5119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 5219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (ErrorStr) 5319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman *ErrorStr = "target does not support JIT code generation"; 5419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 0; 5519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 5619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 5719bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanMCJIT::MCJIT(Module *m, TargetMachine *tm, TargetJITInfo &tji, 5819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman RTDyldMemoryManager *MM, CodeGenOpt::Level OptLevel, 5919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool AllocateGVsWithCode) 6019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman : ExecutionEngine(m), TM(tm), MemMgr(MM), M(m), OS(Buffer), Dyld(MM) { 6119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 6219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman setTargetData(TM->getTargetData()); 6319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PM.add(new TargetData(*TM->getTargetData())); 6419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 6519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Turn the machine code intermediate representation into bytes in memory 6619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // that may be executed. 6719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (TM->addPassesToEmitMC(PM, Ctx, OS, CodeGenOpt::Default, false)) { 6819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman report_fatal_error("Target does not support MC emission!"); 6919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 7019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 7119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Initialize passes. 7219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // FIXME: When we support multiple modules, we'll want to move the code 7319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // gen and finalization out of the constructor here and do it more 7419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // on-demand as part of getPointerToFunction(). 7519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman PM.run(*M); 7619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Flush the output buffer so the SmallVector gets its data. 7719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman OS.flush(); 7819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 7919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Load the object into the dynamic linker. 8019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // FIXME: It would be nice to avoid making yet another copy. 8119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman MemoryBuffer *MB = MemoryBuffer::getMemBufferCopy(StringRef(Buffer.data(), 8219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Buffer.size())); 8319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (Dyld.loadObject(MB)) 8419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman report_fatal_error(Dyld.getErrorString()); 8519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Resolve any relocations. 8619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Dyld.resolveRelocations(); 8719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 8819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 8919bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanMCJIT::~MCJIT() { 9019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman delete MemMgr; 9119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 9219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 9319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanvoid *MCJIT::getPointerToBasicBlock(BasicBlock *BB) { 9419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman report_fatal_error("not yet implemented"); 9519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return 0; 9619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 9719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 9819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanvoid *MCJIT::getPointerToFunction(Function *F) { 9919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (F->isDeclaration() || F->hasAvailableExternallyLinkage()) { 10019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman bool AbortOnFailure = !F->hasExternalWeakLinkage(); 10119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman void *Addr = getPointerToNamedFunction(F->getName(), AbortOnFailure); 10219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman addGlobalMapping(F, Addr); 10319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return Addr; 10419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 10519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 10619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // FIXME: Should we be using the mangler for this? Probably. 10719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman StringRef BaseName = F->getName(); 10819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (BaseName[0] == '\1') 10919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return (void*)Dyld.getSymbolAddress(BaseName.substr(1)); 11019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return (void*)Dyld.getSymbolAddress((TM->getMCAsmInfo()->getGlobalPrefix() 11119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman + BaseName).str()); 11219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 11319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 11419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanvoid *MCJIT::recompileAndRelinkFunction(Function *F) { 11519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman report_fatal_error("not yet implemented"); 11619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 11719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 11819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Baumanvoid MCJIT::freeMachineCodeForFunction(Function *F) { 11919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman report_fatal_error("not yet implemented"); 12019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 12119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 12219bac1e08be200c31efd26f0f5fd144c9b3eefd3John BaumanGenericValue MCJIT::runFunction(Function *F, 12319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman const std::vector<GenericValue> &ArgValues) { 12419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(F && "Function *F was null at entry to run()"); 12519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 12619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman void *FPtr = getPointerToFunction(F); 12719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(FPtr && "Pointer to fn's code was null after getPointerToFunction"); 12819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FunctionType *FTy = F->getFunctionType(); 12919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman Type *RetTy = FTy->getReturnType(); 13019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 13119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert((FTy->getNumParams() == ArgValues.size() || 13219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (FTy->isVarArg() && FTy->getNumParams() <= ArgValues.size())) && 13319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "Wrong number of arguments passed into function!"); 13419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(FTy->getNumParams() == ArgValues.size() && 13519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman "This doesn't support passing arguments through varargs (yet)!"); 13619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 13719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Handle some common cases first. These cases correspond to common `main' 13819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // prototypes. 13919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (RetTy->isIntegerTy(32) || RetTy->isVoidTy()) { 14019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman switch (ArgValues.size()) { 14119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case 3: 14219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (FTy->getParamType(0)->isIntegerTy(32) && 14319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FTy->getParamType(1)->isPointerTy() && 14419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FTy->getParamType(2)->isPointerTy()) { 14519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int (*PF)(int, char **, const char **) = 14619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (int(*)(int, char **, const char **))(intptr_t)FPtr; 14719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 14819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Call the function. 14919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman GenericValue rv; 15019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(), 15119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (char **)GVTOP(ArgValues[1]), 15219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (const char **)GVTOP(ArgValues[2]))); 15319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 15419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 15519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman break; 15619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case 2: 15719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (FTy->getParamType(0)->isIntegerTy(32) && 15819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FTy->getParamType(1)->isPointerTy()) { 15919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int (*PF)(int, char **) = (int(*)(int, char **))(intptr_t)FPtr; 16019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 16119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Call the function. 16219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman GenericValue rv; 16319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue(), 16419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman (char **)GVTOP(ArgValues[1]))); 16519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 16619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 16719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman break; 16819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case 1: 16919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (FTy->getNumParams() == 1 && 17019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman FTy->getParamType(0)->isIntegerTy(32)) { 17119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman GenericValue rv; 17219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman int (*PF)(int) = (int(*)(int))(intptr_t)FPtr; 17319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(32, PF(ArgValues[0].IntVal.getZExtValue())); 17419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 17519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 17619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman break; 17719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 17819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 17919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 18019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman // Handle cases where no arguments are passed first. 18119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (ArgValues.empty()) { 18219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman GenericValue rv; 18319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman switch (RetTy->getTypeID()) { 18419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman default: llvm_unreachable("Unknown return type for function call!"); 18519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::IntegerTyID: { 18619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman unsigned BitWidth = cast<IntegerType>(RetTy)->getBitWidth(); 18719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman if (BitWidth == 1) 18819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(BitWidth, ((bool(*)())(intptr_t)FPtr)()); 18919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else if (BitWidth <= 8) 19019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(BitWidth, ((char(*)())(intptr_t)FPtr)()); 19119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else if (BitWidth <= 16) 19219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(BitWidth, ((short(*)())(intptr_t)FPtr)()); 19319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else if (BitWidth <= 32) 19419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(BitWidth, ((int(*)())(intptr_t)FPtr)()); 19519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else if (BitWidth <= 64) 19619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(BitWidth, ((int64_t(*)())(intptr_t)FPtr)()); 19719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman else 19819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman llvm_unreachable("Integer types > 64 bits not supported"); 19919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 20019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 20119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::VoidTyID: 20219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.IntVal = APInt(32, ((int(*)())(intptr_t)FPtr)()); 20319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 20419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::FloatTyID: 20519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.FloatVal = ((float(*)())(intptr_t)FPtr)(); 20619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 20719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::DoubleTyID: 20819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman rv.DoubleVal = ((double(*)())(intptr_t)FPtr)(); 20919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 21019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::X86_FP80TyID: 21119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::FP128TyID: 21219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::PPC_FP128TyID: 21319bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman llvm_unreachable("long double not supported yet"); 21419bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return rv; 21519bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman case Type::PointerTyID: 21619bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return PTOGV(((void*(*)())(intptr_t)FPtr)()); 21719bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 21819bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman } 21919bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman 22019bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman assert(0 && "Full-featured argument passing not supported yet!"); 22119bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman return GenericValue(); 22219bac1e08be200c31efd26f0f5fd144c9b3eefd3John Bauman} 223