Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/CodeGen/CommandFlags.def b/linux-x64/clang/include/llvm/CodeGen/CommandFlags.def
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+++ b/linux-x64/clang/include/llvm/CodeGen/CommandFlags.def
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+//===-- 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.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
+#include "llvm/IR/Module.h"
+#include "llvm/MC/MCTargetOptionsCommandFlags.def"
+#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;
+
+static cl::opt<std::string>
+ MArch("march",
+ cl::desc("Architecture to generate code for (see --version)"));
+
+static cl::opt<std::string>
+ MCPU("mcpu",
+ cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+ cl::value_desc("cpu-name"), cl::init(""));
+
+static cl::list<std::string>
+ MAttrs("mattr", cl::CommaSeparated,
+ cl::desc("Target specific attributes (-mattr=help for details)"),
+ cl::value_desc("a1,+a2,-a3,..."));
+
+static 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")));
+
+LLVM_ATTRIBUTE_UNUSED static Optional<Reloc::Model> getRelocModel() {
+ if (RelocModel.getNumOccurrences()) {
+ Reloc::Model R = RelocModel;
+ return R;
+ }
+ return None;
+}
+
+static 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")));
+
+static cl::opt<llvm::CodeModel::Model> CMModel(
+ "code-model", cl::desc("Choose code model"),
+ cl::values(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")));
+
+LLVM_ATTRIBUTE_UNUSED static Optional<CodeModel::Model> getCodeModel() {
+ if (CMModel.getNumOccurrences()) {
+ CodeModel::Model M = CMModel;
+ return M;
+ }
+ return None;
+}
+
+static 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"),
+ clEnumValN(ExceptionHandling::Wasm, "wasm",
+ "WebAssembly exception handling")));
+
+static 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")));
+
+static cl::opt<bool>
+ DisableFPElim("disable-fp-elim",
+ cl::desc("Disable frame pointer elimination optimization"),
+ cl::init(false));
+
+static cl::opt<bool> EnableUnsafeFPMath(
+ "enable-unsafe-fp-math",
+ cl::desc("Enable optimizations that may decrease FP precision"),
+ cl::init(false));
+
+static cl::opt<bool> EnableNoInfsFPMath(
+ "enable-no-infs-fp-math",
+ cl::desc("Enable FP math optimizations that assume no +-Infs"),
+ cl::init(false));
+
+static cl::opt<bool> EnableNoNaNsFPMath(
+ "enable-no-nans-fp-math",
+ cl::desc("Enable FP math optimizations that assume no NaNs"),
+ cl::init(false));
+
+static 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));
+
+static 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));
+
+static 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")));
+
+static 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));
+
+static 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)")));
+
+static 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.")));
+
+static cl::opt<bool> DontPlaceZerosInBSS(
+ "nozero-initialized-in-bss",
+ cl::desc("Don't place zero-initialized symbols into bss section"),
+ cl::init(false));
+
+static cl::opt<bool> EnableGuaranteedTailCallOpt(
+ "tailcallopt",
+ cl::desc(
+ "Turn fastcc calls into tail calls by (potentially) changing ABI."),
+ cl::init(false));
+
+static cl::opt<bool> DisableTailCalls("disable-tail-calls",
+ cl::desc("Never emit tail calls"),
+ cl::init(false));
+
+static cl::opt<bool> StackSymbolOrdering("stack-symbol-ordering",
+ cl::desc("Order local stack symbols."),
+ cl::init(true));
+
+static cl::opt<unsigned>
+ OverrideStackAlignment("stack-alignment",
+ cl::desc("Override default stack alignment"),
+ cl::init(0));
+
+static cl::opt<bool>
+ StackRealign("stackrealign",
+ cl::desc("Force align the stack to the minimum alignment"),
+ cl::init(false));
+
+static cl::opt<std::string> TrapFuncName(
+ "trap-func", cl::Hidden,
+ cl::desc("Emit a call to trap function rather than a trap instruction"),
+ cl::init(""));
+
+static cl::opt<bool> UseCtors("use-ctors",
+ cl::desc("Use .ctors instead of .init_array."),
+ cl::init(false));
+
+static cl::opt<bool> RelaxELFRelocations(
+ "relax-elf-relocations",
+ cl::desc("Emit GOTPCRELX/REX_GOTPCRELX instead of GOTPCREL on x86-64 ELF"),
+ cl::init(false));
+
+static cl::opt<bool> DataSections("data-sections",
+ cl::desc("Emit data into separate sections"),
+ cl::init(false));
+
+static cl::opt<bool>
+ FunctionSections("function-sections",
+ cl::desc("Emit functions into separate sections"),
+ cl::init(false));
+
+static cl::opt<bool> EmulatedTLS("emulated-tls",
+ cl::desc("Use emulated TLS model"),
+ cl::init(false));
+
+static cl::opt<bool>
+ UniqueSectionNames("unique-section-names",
+ cl::desc("Give unique names to every section"),
+ cl::init(true));
+
+static 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")));
+
+static 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)")));
+
+static cl::opt<bool> EnableStackSizeSection(
+ "stack-size-section",
+ cl::desc("Emit a section containing stack size metadata"), cl::init(false));
+
+// Common utility function tightly tied to the options listed here. Initializes
+// a TargetOptions object with CodeGen flags and returns it.
+static 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.ExplicitEmulatedTLS = EmulatedTLS.getNumOccurrences() > 0;
+ Options.ExceptionModel = ExceptionModel;
+ Options.EmitStackSizeSection = EnableStackSizeSection;
+
+ Options.MCOptions = InitMCTargetOptionsFromFlags();
+
+ Options.ThreadModel = TMModel;
+ Options.EABIVersion = EABIVersion;
+ Options.DebuggerTuning = DebuggerTuningOpt;
+
+ return Options;
+}
+
+LLVM_ATTRIBUTE_UNUSED static 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;
+}
+
+LLVM_ATTRIBUTE_UNUSED static 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();
+}
+
+LLVM_ATTRIBUTE_UNUSED static std::vector<std::string> getFeatureList() {
+ 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.getFeatures();
+}
+
+/// \brief Set function attributes of functions in Module M based on CPU,
+/// Features, and command line flags.
+LLVM_ATTRIBUTE_UNUSED static 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));
+ }
+}