X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FLLVMTargetMachine.cpp;h=2c77eabb0af001e3f0ff0c51ddaa65d5de72fd20;hb=875710a2fd6b3c4f814961582594bd5c1cdb493a;hp=10c896b89a01fd4b84e8ee67c180200f0edc55b1;hpb=bc65a8d518ebe0408deb15d9314fd2ff5cbd0686;p=oota-llvm.git diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp index 10c896b89a0..2c77eabb0af 100644 --- a/lib/CodeGen/LLVMTargetMachine.cpp +++ b/lib/CodeGen/LLVMTargetMachine.cpp @@ -12,12 +12,15 @@ //===----------------------------------------------------------------------===// #include "llvm/Target/TargetMachine.h" -#include "llvm/ADT/OwningPtr.h" + +#include "llvm/Analysis/Passes.h" #include "llvm/CodeGen/AsmPrinter.h" +#include "llvm/CodeGen/JumpInstrTables.h" #include "llvm/CodeGen/MachineFunctionAnalysis.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/Passes.h" -#include "llvm/IR/PrintModulePass.h" +#include "llvm/IR/IRPrintingPasses.h" +#include "llvm/IR/Verifier.h" #include "llvm/MC/MCAsmInfo.h" #include "llvm/MC/MCContext.h" #include "llvm/MC/MCInstrInfo.h" @@ -44,33 +47,24 @@ static cl::opt EnableFastISelOption("fast-isel", cl::Hidden, cl::desc("Enable the \"fast\" instruction selector")); -static cl::opt ShowMCEncoding("show-mc-encoding", cl::Hidden, - cl::desc("Show encoding in .s output")); -static cl::opt ShowMCInst("show-mc-inst", cl::Hidden, - cl::desc("Show instruction structure in .s output")); - -static cl::opt -AsmVerbose("asm-verbose", cl::desc("Add comments to directives."), - cl::init(cl::BOU_UNSET)); - -static bool getVerboseAsm() { - switch (AsmVerbose) { - case cl::BOU_UNSET: return TargetMachine::getAsmVerbosityDefault(); - case cl::BOU_TRUE: return true; - case cl::BOU_FALSE: return false; - } - llvm_unreachable("Invalid verbose asm state"); -} - void LLVMTargetMachine::initAsmInfo() { - AsmInfo = TheTarget.createMCAsmInfo(*getRegisterInfo(), TargetTriple); + MCAsmInfo *TmpAsmInfo = TheTarget.createMCAsmInfo( + *getSubtargetImpl()->getRegisterInfo(), getTargetTriple()); // TargetSelect.h moved to a different directory between LLVM 2.9 and 3.0, // and if the old one gets included then MCAsmInfo will be NULL and // we'll crash later. // Provide the user with a useful error message about what's wrong. - assert(AsmInfo && "MCAsmInfo not initialized. " + assert(TmpAsmInfo && "MCAsmInfo not initialized. " "Make sure you include the correct TargetSelect.h" "and that InitializeAllTargetMCs() is being invoked!"); + + if (Options.DisableIntegratedAS) + TmpAsmInfo->setUseIntegratedAssembler(false); + + if (Options.CompressDebugSections) + TmpAsmInfo->setCompressDebugSections(true); + + AsmInfo = TmpAsmInfo; } LLVMTargetMachine::LLVMTargetMachine(const Target &T, StringRef Triple, @@ -92,7 +86,12 @@ static MCContext *addPassesToGenerateCode(LLVMTargetMachine *TM, bool DisableVerify, AnalysisID StartAfter, AnalysisID StopAfter) { - // Targets may override createPassConfig to provide a target-specific sublass. + + // Add internal analysis passes from the target machine. + TM->addAnalysisPasses(PM); + + // Targets may override createPassConfig to provide a target-specific + // subclass. TargetPassConfig *PassConfig = TM->createPassConfig(PM); PassConfig->setStartStopPasses(StartAfter, StopAfter); @@ -111,9 +110,9 @@ static MCContext *addPassesToGenerateCode(LLVMTargetMachine *TM, // Install a MachineModuleInfo class, which is an immutable pass that holds // all the per-module stuff we're generating, including MCContext. - MachineModuleInfo *MMI = - new MachineModuleInfo(*TM->getMCAsmInfo(), *TM->getRegisterInfo(), - &TM->getTargetLowering()->getObjFileLowering()); + MachineModuleInfo *MMI = new MachineModuleInfo( + *TM->getMCAsmInfo(), *TM->getSubtargetImpl()->getRegisterInfo(), + &TM->getSubtargetImpl()->getTargetLowering()->getObjFileLowering()); PM.add(MMI); // Set up a MachineFunction for the rest of CodeGen to work on. @@ -127,7 +126,7 @@ static MCContext *addPassesToGenerateCode(LLVMTargetMachine *TM, // Ask the target for an isel. if (PassConfig->addInstSelector()) - return NULL; + return nullptr; PassConfig->addMachinePasses(); @@ -142,6 +141,11 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, bool DisableVerify, AnalysisID StartAfter, AnalysisID StopAfter) { + // Passes to handle jumptable function annotations. These can't be handled at + // JIT time, so we don't add them directly to addPassesToGenerateCode. + PM.add(createJumpInstrTableInfoPass()); + PM.add(createJumpInstrTablesPass(Options.JTType)); + // Add common CodeGen passes. MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify, StartAfter, StopAfter); @@ -154,18 +158,18 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, // machine-level pass), and whatever other information is needed to // deserialize the code and resume compilation. For now, just write the // LLVM IR. - PM.add(createPrintModulePass(&Out)); + PM.add(createPrintModulePass(Out)); return false; } - if (hasMCSaveTempLabels()) + if (Options.MCOptions.MCSaveTempLabels) Context->setAllowTemporaryLabels(false); - const MCAsmInfo &MAI = *getMCAsmInfo(); - const MCRegisterInfo &MRI = *getRegisterInfo(); - const MCInstrInfo &MII = *getInstrInfo(); const MCSubtargetInfo &STI = getSubtarget(); - OwningPtr AsmStreamer; + const MCAsmInfo &MAI = *getMCAsmInfo(); + const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo(); + const MCInstrInfo &MII = *getSubtargetImpl()->getInstrInfo(); + std::unique_ptr AsmStreamer; switch (FileType) { case CGFT_AssemblyFile: { @@ -174,20 +178,16 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, MII, MRI, STI); // Create a code emitter if asked to show the encoding. - MCCodeEmitter *MCE = 0; - if (ShowMCEncoding) + MCCodeEmitter *MCE = nullptr; + if (Options.MCOptions.ShowMCEncoding) MCE = getTarget().createMCCodeEmitter(MII, MRI, STI, *Context); MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(), TargetCPU); - MCStreamer *S = getTarget().createAsmStreamer(*Context, Out, - getVerboseAsm(), - hasMCUseLoc(), - hasMCUseCFI(), - hasMCUseDwarfDirectory(), - InstPrinter, - MCE, MAB, - ShowMCInst); + MCStreamer *S = getTarget().createAsmStreamer( + *Context, Out, Options.MCOptions.AsmVerbose, + Options.MCOptions.MCUseDwarfDirectory, InstPrinter, MCE, MAB, + Options.MCOptions.ShowMCInst); AsmStreamer.reset(S); break; } @@ -198,55 +198,34 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM, *Context); MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(), TargetCPU); - if (MCE == 0 || MAB == 0) + if (!MCE || !MAB) return true; - AsmStreamer.reset(getTarget().createMCObjectStreamer(getTargetTriple(), - *Context, *MAB, Out, - MCE, hasMCRelaxAll(), - hasMCNoExecStack())); - AsmStreamer.get()->setAutoInitSections(true); + AsmStreamer.reset(getTarget().createMCObjectStreamer( + getTargetTriple(), *Context, *MAB, Out, MCE, STI, + Options.MCOptions.MCRelaxAll, Options.MCOptions.MCNoExecStack)); break; } case CGFT_Null: // The Null output is intended for use for performance analysis and testing, // not real users. - AsmStreamer.reset(createNullStreamer(*Context)); + AsmStreamer.reset(getTarget().createNullStreamer(*Context)); break; } // Create the AsmPrinter, which takes ownership of AsmStreamer if successful. FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer); - if (Printer == 0) + if (!Printer) return true; // If successful, createAsmPrinter took ownership of AsmStreamer. - AsmStreamer.take(); + AsmStreamer.release(); PM.add(Printer); return false; } -/// addPassesToEmitMachineCode - Add passes to the specified pass manager to -/// get machine code emitted. This uses a JITCodeEmitter object to handle -/// actually outputting the machine code and resolving things like the address -/// of functions. This method should return true if machine code emission is -/// not supported. -/// -bool LLVMTargetMachine::addPassesToEmitMachineCode(PassManagerBase &PM, - JITCodeEmitter &JCE, - bool DisableVerify) { - // Add common CodeGen passes. - MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify, 0, 0); - if (!Context) - return true; - - addCodeEmitter(PM, JCE); - - return false; // success! -} - /// addPassesToEmitMC - Add passes to the specified pass manager to get /// machine code emitted with the MCJIT. This method returns true if machine /// code is not supported. It fills the MCContext Ctx pointer which can be @@ -257,38 +236,36 @@ bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM, raw_ostream &Out, bool DisableVerify) { // Add common CodeGen passes. - Ctx = addPassesToGenerateCode(this, PM, DisableVerify, 0, 0); + Ctx = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, nullptr); if (!Ctx) return true; - if (hasMCSaveTempLabels()) + if (Options.MCOptions.MCSaveTempLabels) Ctx->setAllowTemporaryLabels(false); // Create the code emitter for the target if it exists. If not, .o file // emission fails. - const MCRegisterInfo &MRI = *getRegisterInfo(); + const MCRegisterInfo &MRI = *getSubtargetImpl()->getRegisterInfo(); const MCSubtargetInfo &STI = getSubtarget(); - MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(*getInstrInfo(), MRI, - STI, *Ctx); + MCCodeEmitter *MCE = getTarget().createMCCodeEmitter( + *getSubtargetImpl()->getInstrInfo(), MRI, STI, *Ctx); MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(), TargetCPU); - if (MCE == 0 || MAB == 0) + if (!MCE || !MAB) return true; - OwningPtr AsmStreamer; - AsmStreamer.reset(getTarget().createMCObjectStreamer(getTargetTriple(), *Ctx, - *MAB, Out, MCE, - hasMCRelaxAll(), - hasMCNoExecStack())); - AsmStreamer.get()->InitSections(); + std::unique_ptr AsmStreamer; + AsmStreamer.reset(getTarget().createMCObjectStreamer( + getTargetTriple(), *Ctx, *MAB, Out, MCE, STI, + Options.MCOptions.MCRelaxAll, Options.MCOptions.MCNoExecStack)); // Create the AsmPrinter, which takes ownership of AsmStreamer if successful. FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer); - if (Printer == 0) + if (!Printer) return true; // If successful, createAsmPrinter took ownership of AsmStreamer. - AsmStreamer.take(); + AsmStreamer.release(); PM.add(Printer);