diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/LLVMTargetMachine.cpp')
-rw-r--r-- | contrib/llvm/lib/CodeGen/LLVMTargetMachine.cpp | 113 |
1 files changed, 55 insertions, 58 deletions
diff --git a/contrib/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/contrib/llvm/lib/CodeGen/LLVMTargetMachine.cpp index ad2c553..df96b94 100644 --- a/contrib/llvm/lib/CodeGen/LLVMTargetMachine.cpp +++ b/contrib/llvm/lib/CodeGen/LLVMTargetMachine.cpp @@ -12,12 +12,15 @@ //===----------------------------------------------------------------------===// #include "llvm/Target/TargetMachine.h" -#include "llvm/ADT/OwningPtr.h" -#include "llvm/Assembly/PrintModulePass.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/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<cl::boolOrDefault> EnableFastISelOption("fast-isel", cl::Hidden, cl::desc("Enable the \"fast\" instruction selector")); -static cl::opt<bool> ShowMCEncoding("show-mc-encoding", cl::Hidden, - cl::desc("Show encoding in .s output")); -static cl::opt<bool> ShowMCInst("show-mc-inst", cl::Hidden, - cl::desc("Show instruction structure in .s output")); - -static cl::opt<cl::boolOrDefault> -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(*getRegisterInfo(), + TargetTriple); // 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); @@ -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<MCSubtargetInfo>(); - OwningPtr<MCStreamer> AsmStreamer; + std::unique_ptr<MCStreamer> 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; } @@ -198,30 +198,28 @@ 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); @@ -238,7 +236,8 @@ bool LLVMTargetMachine::addPassesToEmitMachineCode(PassManagerBase &PM, JITCodeEmitter &JCE, bool DisableVerify) { // Add common CodeGen passes. - MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify, 0, 0); + MCContext *Context = addPassesToGenerateCode(this, PM, DisableVerify, nullptr, + nullptr); if (!Context) return true; @@ -257,11 +256,11 @@ 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 @@ -272,23 +271,21 @@ bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM, STI, *Ctx); MCAsmBackend *MAB = getTarget().createMCAsmBackend(MRI, getTargetTriple(), TargetCPU); - if (MCE == 0 || MAB == 0) + if (!MCE || !MAB) return true; - OwningPtr<MCStreamer> AsmStreamer; - AsmStreamer.reset(getTarget().createMCObjectStreamer(getTargetTriple(), *Ctx, - *MAB, Out, MCE, - hasMCRelaxAll(), - hasMCNoExecStack())); - AsmStreamer.get()->InitSections(); + std::unique_ptr<MCStreamer> 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); |