[rustc.git] / src / llvm / include / llvm / CodeGen / CommandFlags.h

//===-- 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/MC/MCTargetOptionsCommandFlags.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/CommandLine.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::init(Reloc::Default),
           cl::values(
              clEnumValN(Reloc::Default, "default",
                      "Target default relocation model"),
              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"),
              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"),
        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"),
                   clEnumValEnd));

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"),
             clEnumValEnd));

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>
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>
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<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::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)"),
                     clEnumValEnd));

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 effected."),
              clEnumValEnd));

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<unsigned>
OverrideStackAlignment("stack-alignment",
                       cl::desc("Override default stack alignment"),
                       cl::init(0));

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>
EnablePIE("enable-pie",
          cl::desc("Assume the creation of a position independent executable."),
          cl::init(false));

cl::opt<bool>
UseCtors("use-ctors",
             cl::desc("Use .ctors instead of .init_array."),
             cl::init(false));

cl::opt<std::string> StopAfter("stop-after",
                            cl::desc("Stop compilation after a specific pass"),
                            cl::value_desc("pass-name"),
                                      cl::init(""));
cl::opt<std::string> StartAfter("start-after",
                          cl::desc("Resume compilation after a 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<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));

// 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.NoFramePointerElim = DisableFPElim;
  Options.AllowFPOpFusion = FuseFPOps;
  Options.UnsafeFPMath = EnableUnsafeFPMath;
  Options.NoInfsFPMath = EnableNoInfsFPMath;
  Options.NoNaNsFPMath = EnableNoNaNsFPMath;
  Options.HonorSignDependentRoundingFPMathOption =
      EnableHonorSignDependentRoundingFPMath;
  Options.UseSoftFloat = GenerateSoftFloatCalls;
  if (FloatABIForCalls != FloatABI::Default)
    Options.FloatABIType = FloatABIForCalls;
  Options.NoZerosInBSS = DontPlaceZerosInBSS;
  Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
  Options.DisableTailCalls = DisableTailCalls;
  Options.StackAlignmentOverride = OverrideStackAlignment;
  Options.TrapFuncName = TrapFuncName;
  Options.PositionIndependentExecutable = EnablePIE;
  Options.UseInitArray = !UseCtors;
  Options.DataSections = DataSections;
  Options.FunctionSections = FunctionSections;

  Options.MCOptions = InitMCTargetOptionsFromFlags();
  Options.JTType = JTableType;

  Options.ThreadModel = TMModel;

  return Options;
}

#endif
Commit	Line	Data
970d7e83 LB	1	//===-- CommandFlags.h - Command Line Flags Interface ------------ C++ --===//
	2	//
	3	// The LLVM Compiler Infrastructure
	4	//
	5	// This file is distributed under the University of Illinois Open Source
	6	// License. See LICENSE.TXT for details.
	7	//
	8	//===----------------------------------------------------------------------===//
	9	//
	10	// This file contains codegen-specific flags that are shared between different
	11	// command line tools. The tools "llc" and "opt" both use this file to prevent
	12	// flag duplication.
	13	//
	14	//===----------------------------------------------------------------------===//
	15
	16	#ifndef LLVM_CODEGEN_COMMANDFLAGS_H
	17	#define LLVM_CODEGEN_COMMANDFLAGS_H
	18
1a4d82fc	19	#include "llvm/MC/MCTargetOptionsCommandFlags.h"
970d7e83 LB	20	#include "llvm/Support/CodeGen.h"
	21	#include "llvm/Support/CommandLine.h"
	22	#include "llvm/Target/TargetMachine.h"
1a4d82fc	23	#include "llvm/Target/TargetOptions.h"
970d7e83 LB	24	#include <string>
	25	using namespace llvm;
	26
	27	cl::opt<std::string>
	28	MArch("march", cl::desc("Architecture to generate code for (see --version)"));
	29
	30	cl::opt<std::string>
	31	MCPU("mcpu",
	32	cl::desc("Target a specific cpu type (-mcpu=help for details)"),
	33	cl::value_desc("cpu-name"),
	34	cl::init(""));
	35
	36	cl::list<std::string>
	37	MAttrs("mattr",
	38	cl::CommaSeparated,
	39	cl::desc("Target specific attributes (-mattr=help for details)"),
	40	cl::value_desc("a1,+a2,-a3,..."));
	41
	42	cl::opt<Reloc::Model>
	43	RelocModel("relocation-model",
	44	cl::desc("Choose relocation model"),
	45	cl::init(Reloc::Default),
	46	cl::values(
	47	clEnumValN(Reloc::Default, "default",
	48	"Target default relocation model"),
	49	clEnumValN(Reloc::Static, "static",
	50	"Non-relocatable code"),
	51	clEnumValN(Reloc::PIC_, "pic",
	52	"Fully relocatable, position independent code"),
	53	clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
	54	"Relocatable external references, non-relocatable code"),
	55	clEnumValEnd));
	56
1a4d82fc JJ	57	cl::opt<ThreadModel::Model>
	58	TMModel("thread-model",
	59	cl::desc("Choose threading model"),
	60	cl::init(ThreadModel::POSIX),
	61	cl::values(clEnumValN(ThreadModel::POSIX, "posix",
	62	"POSIX thread model"),
	63	clEnumValN(ThreadModel::Single, "single",
	64	"Single thread model"),
	65	clEnumValEnd));
	66
970d7e83 LB	67	cl::opt<llvm::CodeModel::Model>
	68	CMModel("code-model",
	69	cl::desc("Choose code model"),
	70	cl::init(CodeModel::Default),
	71	cl::values(clEnumValN(CodeModel::Default, "default",
	72	"Target default code model"),
	73	clEnumValN(CodeModel::Small, "small",
	74	"Small code model"),
	75	clEnumValN(CodeModel::Kernel, "kernel",
	76	"Kernel code model"),
	77	clEnumValN(CodeModel::Medium, "medium",
	78	"Medium code model"),
	79	clEnumValN(CodeModel::Large, "large",
	80	"Large code model"),
	81	clEnumValEnd));
	82
970d7e83 LB	83	cl::opt<TargetMachine::CodeGenFileType>
	84	FileType("filetype", cl::init(TargetMachine::CGFT_AssemblyFile),
	85	cl::desc("Choose a file type (not all types are supported by all targets):"),
	86	cl::values(
	87	clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm",
	88	"Emit an assembly ('.s') file"),
	89	clEnumValN(TargetMachine::CGFT_ObjectFile, "obj",
	90	"Emit a native object ('.o') file"),
	91	clEnumValN(TargetMachine::CGFT_Null, "null",
	92	"Emit nothing, for performance testing"),
	93	clEnumValEnd));
	94
970d7e83 LB	95	cl::opt<bool>
	96	DisableRedZone("disable-red-zone",
	97	cl::desc("Do not emit code that uses the red zone."),
	98	cl::init(false));
	99
	100	cl::opt<bool>
	101	EnableFPMAD("enable-fp-mad",
	102	cl::desc("Enable less precise MAD instructions to be generated"),
	103	cl::init(false));
	104
	105	cl::opt<bool>
	106	DisableFPElim("disable-fp-elim",
	107	cl::desc("Disable frame pointer elimination optimization"),
	108	cl::init(false));
	109
970d7e83 LB	110	cl::opt<bool>
	111	EnableUnsafeFPMath("enable-unsafe-fp-math",
	112	cl::desc("Enable optimizations that may decrease FP precision"),
	113	cl::init(false));
	114
	115	cl::opt<bool>
	116	EnableNoInfsFPMath("enable-no-infs-fp-math",
	117	cl::desc("Enable FP math optimizations that assume no +-Infs"),
	118	cl::init(false));
	119
	120	cl::opt<bool>
	121	EnableNoNaNsFPMath("enable-no-nans-fp-math",
	122	cl::desc("Enable FP math optimizations that assume no NaNs"),
	123	cl::init(false));
	124
	125	cl::opt<bool>
	126	EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math",
	127	cl::Hidden,
	128	cl::desc("Force codegen to assume rounding mode can change dynamically"),
	129	cl::init(false));
	130
	131	cl::opt<bool>
	132	GenerateSoftFloatCalls("soft-float",
	133	cl::desc("Generate software floating point library calls"),
	134	cl::init(false));
	135
	136	cl::opt<llvm::FloatABI::ABIType>
	137	FloatABIForCalls("float-abi",
	138	cl::desc("Choose float ABI type"),
	139	cl::init(FloatABI::Default),
	140	cl::values(
	141	clEnumValN(FloatABI::Default, "default",
	142	"Target default float ABI type"),
	143	clEnumValN(FloatABI::Soft, "soft",
	144	"Soft float ABI (implied by -soft-float)"),
	145	clEnumValN(FloatABI::Hard, "hard",
	146	"Hard float ABI (uses FP registers)"),
	147	clEnumValEnd));
	148
	149	cl::opt<llvm::FPOpFusion::FPOpFusionMode>
	150	FuseFPOps("fp-contract",
1a4d82fc	151	cl::desc("Enable aggressive formation of fused FP ops"),
970d7e83 LB	152	cl::init(FPOpFusion::Standard),
	153	cl::values(
	154	clEnumValN(FPOpFusion::Fast, "fast",
	155	"Fuse FP ops whenever profitable"),
	156	clEnumValN(FPOpFusion::Standard, "on",
	157	"Only fuse 'blessed' FP ops."),
	158	clEnumValN(FPOpFusion::Strict, "off",
	159	"Only fuse FP ops when the result won't be effected."),
	160	clEnumValEnd));
	161
	162	cl::opt<bool>
	163	DontPlaceZerosInBSS("nozero-initialized-in-bss",
	164	cl::desc("Don't place zero-initialized symbols into bss section"),
	165	cl::init(false));
	166
	167	cl::opt<bool>
	168	EnableGuaranteedTailCallOpt("tailcallopt",
	169	cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."),
	170	cl::init(false));
	171
	172	cl::opt<bool>
	173	DisableTailCalls("disable-tail-calls",
	174	cl::desc("Never emit tail calls"),
	175	cl::init(false));
	176
	177	cl::opt<unsigned>
	178	OverrideStackAlignment("stack-alignment",
	179	cl::desc("Override default stack alignment"),
	180	cl::init(0));
	181
970d7e83 LB	182	cl::opt<std::string>
	183	TrapFuncName("trap-func", cl::Hidden,
	184	cl::desc("Emit a call to trap function rather than a trap instruction"),
	185	cl::init(""));
	186
	187	cl::opt<bool>
	188	EnablePIE("enable-pie",
	189	cl::desc("Assume the creation of a position independent executable."),
	190	cl::init(false));
	191
	192	cl::opt<bool>
1a4d82fc JJ	193	UseCtors("use-ctors",
1a4d82fc JJ	194	cl::desc("Use .ctors instead of .init_array."),
970d7e83 LB	195	cl::init(false));
	196
	197	cl::opt<std::string> StopAfter("stop-after",
	198	cl::desc("Stop compilation after a specific pass"),
	199	cl::value_desc("pass-name"),
	200	cl::init(""));
	201	cl::opt<std::string> StartAfter("start-after",
	202	cl::desc("Resume compilation after a specific pass"),
	203	cl::value_desc("pass-name"),
	204	cl::init(""));
	205
1a4d82fc JJ	206	cl::opt<bool> DataSections("data-sections",
	207	cl::desc("Emit data into separate sections"),
	208	cl::init(false));
	209
	210	cl::opt<bool>
	211	FunctionSections("function-sections",
	212	cl::desc("Emit functions into separate sections"),
	213	cl::init(false));
	214
	215	cl::opt<llvm::JumpTable::JumpTableType>
	216	JTableType("jump-table-type",
	217	cl::desc("Choose the type of Jump-Instruction Table for jumptable."),
	218	cl::init(JumpTable::Single),
	219	cl::values(
	220	clEnumValN(JumpTable::Single, "single",
	221	"Create a single table for all jumptable functions"),
	222	clEnumValN(JumpTable::Arity, "arity",
	223	"Create one table per number of parameters."),
	224	clEnumValN(JumpTable::Simplified, "simplified",
	225	"Create one table per simplified function type."),
	226	clEnumValN(JumpTable::Full, "full",
	227	"Create one table per unique function type."),
	228	clEnumValEnd));
	229
	230	// Common utility function tightly tied to the options listed here. Initializes
	231	// a TargetOptions object with CodeGen flags and returns it.
	232	static inline TargetOptions InitTargetOptionsFromCodeGenFlags() {
	233	TargetOptions Options;
	234	Options.LessPreciseFPMADOption = EnableFPMAD;
	235	Options.NoFramePointerElim = DisableFPElim;
	236	Options.AllowFPOpFusion = FuseFPOps;
	237	Options.UnsafeFPMath = EnableUnsafeFPMath;
	238	Options.NoInfsFPMath = EnableNoInfsFPMath;
	239	Options.NoNaNsFPMath = EnableNoNaNsFPMath;
	240	Options.HonorSignDependentRoundingFPMathOption =
	241	EnableHonorSignDependentRoundingFPMath;
	242	Options.UseSoftFloat = GenerateSoftFloatCalls;
	243	if (FloatABIForCalls != FloatABI::Default)
	244	Options.FloatABIType = FloatABIForCalls;
	245	Options.NoZerosInBSS = DontPlaceZerosInBSS;
	246	Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt;
	247	Options.DisableTailCalls = DisableTailCalls;
	248	Options.StackAlignmentOverride = OverrideStackAlignment;
	249	Options.TrapFuncName = TrapFuncName;
	250	Options.PositionIndependentExecutable = EnablePIE;
	251	Options.UseInitArray = !UseCtors;
	252	Options.DataSections = DataSections;
	253	Options.FunctionSections = FunctionSections;
	254
	255	Options.MCOptions = InitMCTargetOptionsFromFlags();
	256	Options.JTType = JTableType;
	257
	258	Options.ThreadModel = TMModel;
	259
	260	return Options;
	261	}
	262
970d7e83	263	#endif