-//===-- CommandFlags.h - Register Coalescing Interface ----------*- C++ -*-===//
+//===-- CommandFlags.h - Command Line Flags Interface -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_CODEGEN_COMMAND_LINE_FLAGS_H
-#define LLVM_CODEGEN_COMMAND_LINE_FLAGS_H
+#ifndef LLVM_CODEGEN_COMMANDFLAGS_H
+#define LLVM_CODEGEN_COMMANDFLAGS_H
-#include "llvm/Support/CommandLine.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 "llvm/Target/TargetRecip.h"
#include <string>
using namespace llvm;
"Relocatable external references, non-relocatable code"),
clEnumValEnd));
+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"),
+ clEnumValEnd));
+
cl::opt<llvm::CodeModel::Model>
CMModel("code-model",
cl::desc("Choose code model"),
"Large code model"),
clEnumValEnd));
-cl::opt<bool>
-RelaxAll("mc-relax-all",
- cl::desc("When used with filetype=obj, "
- "relax all fixups in the emitted object file"));
-
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):"),
"Emit nothing, for performance testing"),
clEnumValEnd));
-cl::opt<bool> DisableDotLoc("disable-dot-loc", cl::Hidden,
- cl::desc("Do not use .loc entries"));
-
-cl::opt<bool> DisableCFI("disable-cfi", cl::Hidden,
- cl::desc("Do not use .cfi_* directives"));
-
-cl::opt<bool> EnableDwarfDirectory("enable-dwarf-directory", cl::Hidden,
- cl::desc("Use .file directives with an explicit directory."));
-
-cl::opt<bool>
-DisableRedZone("disable-red-zone",
- cl::desc("Do not emit code that uses the red zone."),
- cl::init(false));
-
cl::opt<bool>
EnableFPMAD("enable-fp-mad",
cl::desc("Enable less precise MAD instructions to be generated"),
cl::init(false));
cl::opt<bool>
-DisableFPElimNonLeaf("disable-non-leaf-fp-elim",
- cl::desc("Disable frame pointer elimination optimization for non-leaf funcs"),
- cl::init(false));
-
-cl::opt<bool>
EnableUnsafeFPMath("enable-unsafe-fp-math",
cl::desc("Enable optimizations that may decrease FP precision"),
cl::init(false));
cl::desc("Force codegen to assume rounding mode can change dynamically"),
cl::init(false));
-cl::opt<bool>
-GenerateSoftFloatCalls("soft-float",
- cl::desc("Generate software floating point library calls"),
- cl::init(false));
-
cl::opt<llvm::FloatABI::ABIType>
FloatABIForCalls("float-abi",
cl::desc("Choose float ABI type"),
cl::opt<llvm::FPOpFusion::FPOpFusionMode>
FuseFPOps("fp-contract",
- cl::desc("Enable aggresive formation of fused FP ops"),
+ cl::desc("Enable aggressive formation of fused FP ops"),
cl::init(FPOpFusion::Standard),
cl::values(
clEnumValN(FPOpFusion::Fast, "fast",
clEnumValN(FPOpFusion::Standard, "on",
"Only fuse 'blessed' FP ops."),
clEnumValN(FPOpFusion::Strict, "off",
- "Only fuse FP ops when the result won't be effected."),
+ "Only fuse FP ops when the result won't be affected."),
clEnumValEnd));
+cl::list<std::string>
+ReciprocalOps("recip",
+ cl::CommaSeparated,
+ cl::desc("Choose reciprocal operation types and parameters."),
+ cl::value_desc("all,none,default,divf,!vec-sqrtd,vec-divd:0,sqrt:9..."));
+
cl::opt<bool>
DontPlaceZerosInBSS("nozero-initialized-in-bss",
cl::desc("Don't place zero-initialized symbols into bss section"),
cl::init(0));
cl::opt<bool>
-EnableRealignStack("realign-stack",
- cl::desc("Realign stack if needed"),
- cl::init(true));
+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::init(false));
cl::opt<bool>
-SegmentedStacks("segmented-stacks",
- cl::desc("Use segmented stacks if possible."),
- cl::init(false));
-
-cl::opt<bool>
-UseInitArray("use-init-array",
- cl::desc("Use .init_array instead of .ctors."),
+UseCtors("use-ctors",
+ cl::desc("Use .ctors instead of .init_array."),
cl::init(false));
cl::opt<std::string> StopAfter("stop-after",
cl::value_desc("pass-name"),
cl::init(""));
-cl::opt<unsigned>
-SSPBufferSize("stack-protector-buffer-size", cl::init(8),
- cl::desc("Lower bound for a buffer to be considered for "
- "stack protection"));
+cl::opt<std::string>
+ RunPass("run-pass", cl::desc("Run compiler only for one specific pass"),
+ cl::value_desc("pass-name"), cl::init(""));
+
+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::JumpTable::JumpTableType>
+JTableType("jump-table-type",
+ cl::desc("Choose the type of Jump-Instruction Table for jumptable."),
+ cl::init(JumpTable::Single),
+ cl::values(
+ clEnumValN(JumpTable::Single, "single",
+ "Create a single table for all jumptable functions"),
+ clEnumValN(JumpTable::Arity, "arity",
+ "Create one table per number of parameters."),
+ clEnumValN(JumpTable::Simplified, "simplified",
+ "Create one table per simplified function type."),
+ clEnumValN(JumpTable::Full, "full",
+ "Create one table per unique function type."),
+ clEnumValEnd));
+
+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"), clEnumValEnd));
+
+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)"),
+ clEnumValEnd));
+
+// 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.LessPreciseFPMADOption = EnableFPMAD;
+ Options.AllowFPOpFusion = FuseFPOps;
+ Options.Reciprocals = TargetRecip(ReciprocalOps);
+ Options.UnsafeFPMath = EnableUnsafeFPMath;
+ Options.NoInfsFPMath = EnableNoInfsFPMath;
+ Options.NoNaNsFPMath = EnableNoNaNsFPMath;
+ Options.HonorSignDependentRoundingFPMathOption =
+ EnableHonorSignDependentRoundingFPMath;
+ if (FloatABIForCalls != FloatABI::Default)
+ Options.FloatABIType = FloatABIForCalls;
+ Options.NoZerosInBSS = DontPlaceZerosInBSS;
+ Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
+ Options.StackAlignmentOverride = OverrideStackAlignment;
+ Options.PositionIndependentExecutable = EnablePIE;
+ Options.UseInitArray = !UseCtors;
+ Options.DataSections = DataSections;
+ Options.FunctionSections = FunctionSections;
+ Options.UniqueSectionNames = UniqueSectionNames;
+ Options.EmulatedTLS = EmulatedTLS;
+
+ Options.MCOptions = InitMCTargetOptionsFromFlags();
+ Options.JTType = JTableType;
+
+ 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();
+ AttributeSet Attrs = F.getAttributes(), NewAttrs;
+
+ if (!CPU.empty())
+ NewAttrs = NewAttrs.addAttribute(Ctx, AttributeSet::FunctionIndex,
+ "target-cpu", CPU);
+
+ if (!Features.empty())
+ NewAttrs = NewAttrs.addAttribute(Ctx, AttributeSet::FunctionIndex,
+ "target-features", Features);
+
+ if (DisableFPElim.getNumOccurrences() > 0)
+ NewAttrs = NewAttrs.addAttribute(Ctx, AttributeSet::FunctionIndex,
+ "no-frame-pointer-elim",
+ DisableFPElim ? "true" : "false");
+
+ if (DisableTailCalls.getNumOccurrences() > 0)
+ NewAttrs = NewAttrs.addAttribute(Ctx, AttributeSet::FunctionIndex,
+ "disable-tail-calls",
+ toStringRef(DisableTailCalls));
+
+ if (StackRealign)
+ NewAttrs = NewAttrs.addAttribute(Ctx, AttributeSet::FunctionIndex,
+ "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::AttributeSet::FunctionIndex,
+ "trap-func-name", TrapFuncName);
+
+ // Let NewAttrs override Attrs.
+ NewAttrs = Attrs.addAttributes(Ctx, AttributeSet::FunctionIndex, NewAttrs);
+ F.setAttributes(NewAttrs);
+ }
+}
+
#endif
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