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Diffstat (limited to 'include/llvm/CodeGen/CommandFlags.h')
| -rw-r--r-- | include/llvm/CodeGen/CommandFlags.h | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/include/llvm/CodeGen/CommandFlags.h b/include/llvm/CodeGen/CommandFlags.h deleted file mode 100644 index 0d898827efc61..0000000000000 --- a/include/llvm/CodeGen/CommandFlags.h +++ /dev/null @@ -1,382 +0,0 @@ -//===-- CommandFlags.h - Command Line Flags Interface -----------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file contains codegen-specific flags that are shared between different -// command line tools. The tools "llc" and "opt" both use this file to prevent -// flag duplication. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CODEGEN_COMMANDFLAGS_H -#define LLVM_CODEGEN_COMMANDFLAGS_H - -#include "llvm/ADT/StringExtras.h" -#include "llvm/IR/Instructions.h" -#include "llvm/IR/Intrinsics.h" -#include "llvm/IR/Module.h" -#include "llvm/MC/MCTargetOptionsCommandFlags.h" -#include "llvm/MC/SubtargetFeature.h" -#include "llvm/Support/CodeGen.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/Support/Host.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Target/TargetOptions.h" -#include <string> -using namespace llvm; - -cl::opt<std::string> -MArch("march", cl::desc("Architecture to generate code for (see --version)")); - -cl::opt<std::string> -MCPU("mcpu", - cl::desc("Target a specific cpu type (-mcpu=help for details)"), - cl::value_desc("cpu-name"), - cl::init("")); - -cl::list<std::string> -MAttrs("mattr", - cl::CommaSeparated, - cl::desc("Target specific attributes (-mattr=help for details)"), - cl::value_desc("a1,+a2,-a3,...")); - -cl::opt<Reloc::Model> RelocModel( - "relocation-model", cl::desc("Choose relocation model"), - cl::values( - clEnumValN(Reloc::Static, "static", "Non-relocatable code"), - clEnumValN(Reloc::PIC_, "pic", - "Fully relocatable, position independent code"), - clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic", - "Relocatable external references, non-relocatable code"), - clEnumValN(Reloc::ROPI, "ropi", - "Code and read-only data relocatable, accessed PC-relative"), - clEnumValN(Reloc::RWPI, "rwpi", - "Read-write data relocatable, accessed relative to static base"), - clEnumValN(Reloc::ROPI_RWPI, "ropi-rwpi", - "Combination of ropi and rwpi"))); - -static inline Optional<Reloc::Model> getRelocModel() { - if (RelocModel.getNumOccurrences()) { - Reloc::Model R = RelocModel; - return R; - } - return None; -} - -cl::opt<ThreadModel::Model> -TMModel("thread-model", - cl::desc("Choose threading model"), - cl::init(ThreadModel::POSIX), - cl::values(clEnumValN(ThreadModel::POSIX, "posix", - "POSIX thread model"), - clEnumValN(ThreadModel::Single, "single", - "Single thread model"))); - -cl::opt<llvm::CodeModel::Model> -CMModel("code-model", - cl::desc("Choose code model"), - cl::init(CodeModel::Default), - cl::values(clEnumValN(CodeModel::Default, "default", - "Target default code model"), - clEnumValN(CodeModel::Small, "small", - "Small code model"), - clEnumValN(CodeModel::Kernel, "kernel", - "Kernel code model"), - clEnumValN(CodeModel::Medium, "medium", - "Medium code model"), - clEnumValN(CodeModel::Large, "large", - "Large code model"))); - -cl::opt<llvm::ExceptionHandling> -ExceptionModel("exception-model", - cl::desc("exception model"), - cl::init(ExceptionHandling::None), - cl::values(clEnumValN(ExceptionHandling::None, "default", - "default exception handling model"), - clEnumValN(ExceptionHandling::DwarfCFI, "dwarf", - "DWARF-like CFI based exception handling"), - clEnumValN(ExceptionHandling::SjLj, "sjlj", - "SjLj exception handling"), - clEnumValN(ExceptionHandling::ARM, "arm", - "ARM EHABI exceptions"), - clEnumValN(ExceptionHandling::WinEH, "wineh", - "Windows exception model"))); - -cl::opt<TargetMachine::CodeGenFileType> -FileType("filetype", cl::init(TargetMachine::CGFT_AssemblyFile), - cl::desc("Choose a file type (not all types are supported by all targets):"), - cl::values( - clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm", - "Emit an assembly ('.s') file"), - clEnumValN(TargetMachine::CGFT_ObjectFile, "obj", - "Emit a native object ('.o') file"), - clEnumValN(TargetMachine::CGFT_Null, "null", - "Emit nothing, for performance testing"))); - -cl::opt<bool> -DisableFPElim("disable-fp-elim", - cl::desc("Disable frame pointer elimination optimization"), - cl::init(false)); - -cl::opt<bool> -EnableUnsafeFPMath("enable-unsafe-fp-math", - cl::desc("Enable optimizations that may decrease FP precision"), - cl::init(false)); - -cl::opt<bool> -EnableNoInfsFPMath("enable-no-infs-fp-math", - cl::desc("Enable FP math optimizations that assume no +-Infs"), - cl::init(false)); - -cl::opt<bool> -EnableNoNaNsFPMath("enable-no-nans-fp-math", - cl::desc("Enable FP math optimizations that assume no NaNs"), - cl::init(false)); - -cl::opt<bool> -EnableNoSignedZerosFPMath("enable-no-signed-zeros-fp-math", - cl::desc("Enable FP math optimizations that assume " - "the sign of 0 is insignificant"), - cl::init(false)); - -cl::opt<bool> -EnableNoTrappingFPMath("enable-no-trapping-fp-math", - cl::desc("Enable setting the FP exceptions build " - "attribute not to use exceptions"), - cl::init(false)); - -cl::opt<llvm::FPDenormal::DenormalMode> -DenormalMode("denormal-fp-math", - cl::desc("Select which denormal numbers the code is permitted to require"), - cl::init(FPDenormal::IEEE), - cl::values( - clEnumValN(FPDenormal::IEEE, "ieee", - "IEEE 754 denormal numbers"), - clEnumValN(FPDenormal::PreserveSign, "preserve-sign", - "the sign of a flushed-to-zero number is preserved " - "in the sign of 0"), - clEnumValN(FPDenormal::PositiveZero, "positive-zero", - "denormals are flushed to positive zero"))); - -cl::opt<bool> -EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math", - cl::Hidden, - cl::desc("Force codegen to assume rounding mode can change dynamically"), - cl::init(false)); - -cl::opt<llvm::FloatABI::ABIType> -FloatABIForCalls("float-abi", - cl::desc("Choose float ABI type"), - cl::init(FloatABI::Default), - cl::values( - clEnumValN(FloatABI::Default, "default", - "Target default float ABI type"), - clEnumValN(FloatABI::Soft, "soft", - "Soft float ABI (implied by -soft-float)"), - clEnumValN(FloatABI::Hard, "hard", - "Hard float ABI (uses FP registers)"))); - -cl::opt<llvm::FPOpFusion::FPOpFusionMode> -FuseFPOps("fp-contract", - cl::desc("Enable aggressive formation of fused FP ops"), - cl::init(FPOpFusion::Standard), - cl::values( - clEnumValN(FPOpFusion::Fast, "fast", - "Fuse FP ops whenever profitable"), - clEnumValN(FPOpFusion::Standard, "on", - "Only fuse 'blessed' FP ops."), - clEnumValN(FPOpFusion::Strict, "off", - "Only fuse FP ops when the result won't be affected."))); - -cl::opt<bool> -DontPlaceZerosInBSS("nozero-initialized-in-bss", - cl::desc("Don't place zero-initialized symbols into bss section"), - cl::init(false)); - -cl::opt<bool> -EnableGuaranteedTailCallOpt("tailcallopt", - cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."), - cl::init(false)); - -cl::opt<bool> -DisableTailCalls("disable-tail-calls", - cl::desc("Never emit tail calls"), - cl::init(false)); - -cl::opt<bool> -StackSymbolOrdering("stack-symbol-ordering", - cl::desc("Order local stack symbols."), - cl::init(true)); - -cl::opt<unsigned> -OverrideStackAlignment("stack-alignment", - cl::desc("Override default stack alignment"), - cl::init(0)); - -cl::opt<bool> -StackRealign("stackrealign", - cl::desc("Force align the stack to the minimum alignment"), - cl::init(false)); - -cl::opt<std::string> -TrapFuncName("trap-func", cl::Hidden, - cl::desc("Emit a call to trap function rather than a trap instruction"), - cl::init("")); - -cl::opt<bool> -UseCtors("use-ctors", - cl::desc("Use .ctors instead of .init_array."), - cl::init(false)); - -cl::opt<bool> RelaxELFRelocations( - "relax-elf-relocations", - cl::desc("Emit GOTPCRELX/REX_GOTPCRELX instead of GOTPCREL on x86-64 ELF"), - cl::init(false)); - -cl::opt<bool> DataSections("data-sections", - cl::desc("Emit data into separate sections"), - cl::init(false)); - -cl::opt<bool> -FunctionSections("function-sections", - cl::desc("Emit functions into separate sections"), - cl::init(false)); - -cl::opt<bool> EmulatedTLS("emulated-tls", - cl::desc("Use emulated TLS model"), - cl::init(false)); - -cl::opt<bool> UniqueSectionNames("unique-section-names", - cl::desc("Give unique names to every section"), - cl::init(true)); - -cl::opt<llvm::EABI> EABIVersion( - "meabi", cl::desc("Set EABI type (default depends on triple):"), - cl::init(EABI::Default), - cl::values(clEnumValN(EABI::Default, "default", - "Triple default EABI version"), - clEnumValN(EABI::EABI4, "4", "EABI version 4"), - clEnumValN(EABI::EABI5, "5", "EABI version 5"), - clEnumValN(EABI::GNU, "gnu", "EABI GNU"))); - -cl::opt<DebuggerKind> -DebuggerTuningOpt("debugger-tune", - cl::desc("Tune debug info for a particular debugger"), - cl::init(DebuggerKind::Default), - cl::values( - clEnumValN(DebuggerKind::GDB, "gdb", "gdb"), - clEnumValN(DebuggerKind::LLDB, "lldb", "lldb"), - clEnumValN(DebuggerKind::SCE, "sce", - "SCE targets (e.g. PS4)"))); - -// Common utility function tightly tied to the options listed here. Initializes -// a TargetOptions object with CodeGen flags and returns it. -static inline TargetOptions InitTargetOptionsFromCodeGenFlags() { - TargetOptions Options; - Options.AllowFPOpFusion = FuseFPOps; - Options.UnsafeFPMath = EnableUnsafeFPMath; - Options.NoInfsFPMath = EnableNoInfsFPMath; - Options.NoNaNsFPMath = EnableNoNaNsFPMath; - Options.NoSignedZerosFPMath = EnableNoSignedZerosFPMath; - Options.NoTrappingFPMath = EnableNoTrappingFPMath; - Options.FPDenormalMode = DenormalMode; - Options.HonorSignDependentRoundingFPMathOption = - EnableHonorSignDependentRoundingFPMath; - if (FloatABIForCalls != FloatABI::Default) - Options.FloatABIType = FloatABIForCalls; - Options.NoZerosInBSS = DontPlaceZerosInBSS; - Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt; - Options.StackAlignmentOverride = OverrideStackAlignment; - Options.StackSymbolOrdering = StackSymbolOrdering; - Options.UseInitArray = !UseCtors; - Options.RelaxELFRelocations = RelaxELFRelocations; - Options.DataSections = DataSections; - Options.FunctionSections = FunctionSections; - Options.UniqueSectionNames = UniqueSectionNames; - Options.EmulatedTLS = EmulatedTLS; - Options.ExceptionModel = ExceptionModel; - - Options.MCOptions = InitMCTargetOptionsFromFlags(); - - Options.ThreadModel = TMModel; - Options.EABIVersion = EABIVersion; - Options.DebuggerTuning = DebuggerTuningOpt; - - return Options; -} - -static inline std::string getCPUStr() { - // If user asked for the 'native' CPU, autodetect here. If autodection fails, - // this will set the CPU to an empty string which tells the target to - // pick a basic default. - if (MCPU == "native") - return sys::getHostCPUName(); - - return MCPU; -} - -static inline std::string getFeaturesStr() { - SubtargetFeatures Features; - - // If user asked for the 'native' CPU, we need to autodetect features. - // This is necessary for x86 where the CPU might not support all the - // features the autodetected CPU name lists in the target. For example, - // not all Sandybridge processors support AVX. - if (MCPU == "native") { - StringMap<bool> HostFeatures; - if (sys::getHostCPUFeatures(HostFeatures)) - for (auto &F : HostFeatures) - Features.AddFeature(F.first(), F.second); - } - - for (unsigned i = 0; i != MAttrs.size(); ++i) - Features.AddFeature(MAttrs[i]); - - return Features.getString(); -} - -/// \brief Set function attributes of functions in Module M based on CPU, -/// Features, and command line flags. -static inline void setFunctionAttributes(StringRef CPU, StringRef Features, - Module &M) { - for (auto &F : M) { - auto &Ctx = F.getContext(); - AttributeList Attrs = F.getAttributes(); - AttrBuilder NewAttrs; - - if (!CPU.empty()) - NewAttrs.addAttribute("target-cpu", CPU); - if (!Features.empty()) - NewAttrs.addAttribute("target-features", Features); - if (DisableFPElim.getNumOccurrences() > 0) - NewAttrs.addAttribute("no-frame-pointer-elim", - DisableFPElim ? "true" : "false"); - if (DisableTailCalls.getNumOccurrences() > 0) - NewAttrs.addAttribute("disable-tail-calls", - toStringRef(DisableTailCalls)); - if (StackRealign) - NewAttrs.addAttribute("stackrealign"); - - if (TrapFuncName.getNumOccurrences() > 0) - for (auto &B : F) - for (auto &I : B) - if (auto *Call = dyn_cast<CallInst>(&I)) - if (const auto *F = Call->getCalledFunction()) - if (F->getIntrinsicID() == Intrinsic::debugtrap || - F->getIntrinsicID() == Intrinsic::trap) - Call->addAttribute( - llvm::AttributeList::FunctionIndex, - Attribute::get(Ctx, "trap-func-name", TrapFuncName)); - - // Let NewAttrs override Attrs. - F.setAttributes( - Attrs.addAttributes(Ctx, AttributeList::FunctionIndex, NewAttrs)); - } -} - -#endif |