mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
24fcc0af13
SUMMARY: 1. added a new option -xcoff-traceback-table to control whether generate traceback table for function. 2. implement the functionality of emit traceback table of a function. Reviewers: hubert.reinterpretcast, Jason Liu Differential Revision: https://reviews.llvm.org/D92398
723 lines
28 KiB
C++
723 lines
28 KiB
C++
//===-- CommandFlags.cpp - Command Line Flags Interface ---------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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/CodeGen/CommandFlags.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/MC/SubtargetFeature.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/Host.h"
|
|
|
|
using namespace llvm;
|
|
|
|
#define CGOPT(TY, NAME) \
|
|
static cl::opt<TY> *NAME##View; \
|
|
TY codegen::get##NAME() { \
|
|
assert(NAME##View && "RegisterCodeGenFlags not created."); \
|
|
return *NAME##View; \
|
|
}
|
|
|
|
#define CGLIST(TY, NAME) \
|
|
static cl::list<TY> *NAME##View; \
|
|
std::vector<TY> codegen::get##NAME() { \
|
|
assert(NAME##View && "RegisterCodeGenFlags not created."); \
|
|
return *NAME##View; \
|
|
}
|
|
|
|
#define CGOPT_EXP(TY, NAME) \
|
|
CGOPT(TY, NAME) \
|
|
Optional<TY> codegen::getExplicit##NAME() { \
|
|
if (NAME##View->getNumOccurrences()) { \
|
|
TY res = *NAME##View; \
|
|
return res; \
|
|
} \
|
|
return None; \
|
|
}
|
|
|
|
CGOPT(std::string, MArch)
|
|
CGOPT(std::string, MCPU)
|
|
CGLIST(std::string, MAttrs)
|
|
CGOPT_EXP(Reloc::Model, RelocModel)
|
|
CGOPT(ThreadModel::Model, ThreadModel)
|
|
CGOPT_EXP(CodeModel::Model, CodeModel)
|
|
CGOPT(ExceptionHandling, ExceptionModel)
|
|
CGOPT_EXP(CodeGenFileType, FileType)
|
|
CGOPT(FramePointer::FP, FramePointerUsage)
|
|
CGOPT(bool, EnableUnsafeFPMath)
|
|
CGOPT(bool, EnableNoInfsFPMath)
|
|
CGOPT(bool, EnableNoNaNsFPMath)
|
|
CGOPT(bool, EnableNoSignedZerosFPMath)
|
|
CGOPT(bool, EnableNoTrappingFPMath)
|
|
CGOPT(bool, EnableAIXExtendedAltivecABI)
|
|
CGOPT(DenormalMode::DenormalModeKind, DenormalFPMath)
|
|
CGOPT(DenormalMode::DenormalModeKind, DenormalFP32Math)
|
|
CGOPT(bool, EnableHonorSignDependentRoundingFPMath)
|
|
CGOPT(FloatABI::ABIType, FloatABIForCalls)
|
|
CGOPT(FPOpFusion::FPOpFusionMode, FuseFPOps)
|
|
CGOPT(bool, DontPlaceZerosInBSS)
|
|
CGOPT(bool, EnableGuaranteedTailCallOpt)
|
|
CGOPT(bool, DisableTailCalls)
|
|
CGOPT(bool, StackSymbolOrdering)
|
|
CGOPT(unsigned, OverrideStackAlignment)
|
|
CGOPT(bool, StackRealign)
|
|
CGOPT(std::string, TrapFuncName)
|
|
CGOPT(bool, UseCtors)
|
|
CGOPT(bool, RelaxELFRelocations)
|
|
CGOPT_EXP(bool, DataSections)
|
|
CGOPT_EXP(bool, FunctionSections)
|
|
CGOPT(bool, IgnoreXCOFFVisibility)
|
|
CGOPT(bool, XCOFFTracebackTable)
|
|
CGOPT(std::string, BBSections)
|
|
CGOPT(std::string, StackProtectorGuard)
|
|
CGOPT(unsigned, StackProtectorGuardOffset)
|
|
CGOPT(std::string, StackProtectorGuardReg)
|
|
CGOPT(unsigned, TLSSize)
|
|
CGOPT(bool, EmulatedTLS)
|
|
CGOPT(bool, UniqueSectionNames)
|
|
CGOPT(bool, UniqueBasicBlockSectionNames)
|
|
CGOPT(EABI, EABIVersion)
|
|
CGOPT(DebuggerKind, DebuggerTuningOpt)
|
|
CGOPT(bool, EnableStackSizeSection)
|
|
CGOPT(bool, EnableAddrsig)
|
|
CGOPT(bool, EmitCallSiteInfo)
|
|
CGOPT(bool, EnableMachineFunctionSplitter)
|
|
CGOPT(bool, EnableDebugEntryValues)
|
|
CGOPT(bool, PseudoProbeForProfiling)
|
|
CGOPT(bool, ValueTrackingVariableLocations)
|
|
CGOPT(bool, ForceDwarfFrameSection)
|
|
CGOPT(bool, XRayOmitFunctionIndex)
|
|
|
|
codegen::RegisterCodeGenFlags::RegisterCodeGenFlags() {
|
|
#define CGBINDOPT(NAME) \
|
|
do { \
|
|
NAME##View = std::addressof(NAME); \
|
|
} while (0)
|
|
|
|
static cl::opt<std::string> MArch(
|
|
"march", cl::desc("Architecture to generate code for (see --version)"));
|
|
CGBINDOPT(MArch);
|
|
|
|
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(""));
|
|
CGBINDOPT(MCPU);
|
|
|
|
static cl::list<std::string> MAttrs(
|
|
"mattr", cl::CommaSeparated,
|
|
cl::desc("Target specific attributes (-mattr=help for details)"),
|
|
cl::value_desc("a1,+a2,-a3,..."));
|
|
CGBINDOPT(MAttrs);
|
|
|
|
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")));
|
|
CGBINDOPT(RelocModel);
|
|
|
|
static cl::opt<ThreadModel::Model> ThreadModel(
|
|
"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")));
|
|
CGBINDOPT(ThreadModel);
|
|
|
|
static cl::opt<CodeModel::Model> CodeModel(
|
|
"code-model", cl::desc("Choose code model"),
|
|
cl::values(clEnumValN(CodeModel::Tiny, "tiny", "Tiny 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")));
|
|
CGBINDOPT(CodeModel);
|
|
|
|
static cl::opt<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")));
|
|
CGBINDOPT(ExceptionModel);
|
|
|
|
static cl::opt<CodeGenFileType> FileType(
|
|
"filetype", cl::init(CGFT_AssemblyFile),
|
|
cl::desc(
|
|
"Choose a file type (not all types are supported by all targets):"),
|
|
cl::values(
|
|
clEnumValN(CGFT_AssemblyFile, "asm", "Emit an assembly ('.s') file"),
|
|
clEnumValN(CGFT_ObjectFile, "obj",
|
|
"Emit a native object ('.o') file"),
|
|
clEnumValN(CGFT_Null, "null",
|
|
"Emit nothing, for performance testing")));
|
|
CGBINDOPT(FileType);
|
|
|
|
static cl::opt<FramePointer::FP> FramePointerUsage(
|
|
"frame-pointer",
|
|
cl::desc("Specify frame pointer elimination optimization"),
|
|
cl::init(FramePointer::None),
|
|
cl::values(
|
|
clEnumValN(FramePointer::All, "all",
|
|
"Disable frame pointer elimination"),
|
|
clEnumValN(FramePointer::NonLeaf, "non-leaf",
|
|
"Disable frame pointer elimination for non-leaf frame"),
|
|
clEnumValN(FramePointer::None, "none",
|
|
"Enable frame pointer elimination")));
|
|
CGBINDOPT(FramePointerUsage);
|
|
|
|
static cl::opt<bool> EnableUnsafeFPMath(
|
|
"enable-unsafe-fp-math",
|
|
cl::desc("Enable optimizations that may decrease FP precision"),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableUnsafeFPMath);
|
|
|
|
static cl::opt<bool> EnableNoInfsFPMath(
|
|
"enable-no-infs-fp-math",
|
|
cl::desc("Enable FP math optimizations that assume no +-Infs"),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableNoInfsFPMath);
|
|
|
|
static cl::opt<bool> EnableNoNaNsFPMath(
|
|
"enable-no-nans-fp-math",
|
|
cl::desc("Enable FP math optimizations that assume no NaNs"),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableNoNaNsFPMath);
|
|
|
|
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));
|
|
CGBINDOPT(EnableNoSignedZerosFPMath);
|
|
|
|
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));
|
|
CGBINDOPT(EnableNoTrappingFPMath);
|
|
|
|
static const auto DenormFlagEnumOptions =
|
|
cl::values(clEnumValN(DenormalMode::IEEE, "ieee",
|
|
"IEEE 754 denormal numbers"),
|
|
clEnumValN(DenormalMode::PreserveSign, "preserve-sign",
|
|
"the sign of a flushed-to-zero number is preserved "
|
|
"in the sign of 0"),
|
|
clEnumValN(DenormalMode::PositiveZero, "positive-zero",
|
|
"denormals are flushed to positive zero"));
|
|
|
|
// FIXME: Doesn't have way to specify separate input and output modes.
|
|
static cl::opt<DenormalMode::DenormalModeKind> DenormalFPMath(
|
|
"denormal-fp-math",
|
|
cl::desc("Select which denormal numbers the code is permitted to require"),
|
|
cl::init(DenormalMode::IEEE),
|
|
DenormFlagEnumOptions);
|
|
CGBINDOPT(DenormalFPMath);
|
|
|
|
static cl::opt<DenormalMode::DenormalModeKind> DenormalFP32Math(
|
|
"denormal-fp-math-f32",
|
|
cl::desc("Select which denormal numbers the code is permitted to require for float"),
|
|
cl::init(DenormalMode::Invalid),
|
|
DenormFlagEnumOptions);
|
|
CGBINDOPT(DenormalFP32Math);
|
|
|
|
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));
|
|
CGBINDOPT(EnableHonorSignDependentRoundingFPMath);
|
|
|
|
static cl::opt<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)")));
|
|
CGBINDOPT(FloatABIForCalls);
|
|
|
|
static cl::opt<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.")));
|
|
CGBINDOPT(FuseFPOps);
|
|
|
|
static cl::opt<bool> DontPlaceZerosInBSS(
|
|
"nozero-initialized-in-bss",
|
|
cl::desc("Don't place zero-initialized symbols into bss section"),
|
|
cl::init(false));
|
|
CGBINDOPT(DontPlaceZerosInBSS);
|
|
|
|
static cl::opt<bool> EnableAIXExtendedAltivecABI(
|
|
"vec-extabi", cl::desc("Enable the AIX Extended Altivec ABI."),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableAIXExtendedAltivecABI);
|
|
|
|
static cl::opt<bool> EnableGuaranteedTailCallOpt(
|
|
"tailcallopt",
|
|
cl::desc(
|
|
"Turn fastcc calls into tail calls by (potentially) changing ABI."),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableGuaranteedTailCallOpt);
|
|
|
|
static cl::opt<bool> DisableTailCalls(
|
|
"disable-tail-calls", cl::desc("Never emit tail calls"), cl::init(false));
|
|
CGBINDOPT(DisableTailCalls);
|
|
|
|
static cl::opt<bool> StackSymbolOrdering(
|
|
"stack-symbol-ordering", cl::desc("Order local stack symbols."),
|
|
cl::init(true));
|
|
CGBINDOPT(StackSymbolOrdering);
|
|
|
|
static cl::opt<unsigned> OverrideStackAlignment(
|
|
"stack-alignment", cl::desc("Override default stack alignment"),
|
|
cl::init(0));
|
|
CGBINDOPT(OverrideStackAlignment);
|
|
|
|
static cl::opt<bool> StackRealign(
|
|
"stackrealign",
|
|
cl::desc("Force align the stack to the minimum alignment"),
|
|
cl::init(false));
|
|
CGBINDOPT(StackRealign);
|
|
|
|
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(""));
|
|
CGBINDOPT(TrapFuncName);
|
|
|
|
static cl::opt<bool> UseCtors("use-ctors",
|
|
cl::desc("Use .ctors instead of .init_array."),
|
|
cl::init(false));
|
|
CGBINDOPT(UseCtors);
|
|
|
|
static cl::opt<bool> RelaxELFRelocations(
|
|
"relax-elf-relocations",
|
|
cl::desc(
|
|
"Emit GOTPCRELX/REX_GOTPCRELX instead of GOTPCREL on x86-64 ELF"),
|
|
cl::init(false));
|
|
CGBINDOPT(RelaxELFRelocations);
|
|
|
|
static cl::opt<bool> DataSections(
|
|
"data-sections", cl::desc("Emit data into separate sections"),
|
|
cl::init(false));
|
|
CGBINDOPT(DataSections);
|
|
|
|
static cl::opt<bool> FunctionSections(
|
|
"function-sections", cl::desc("Emit functions into separate sections"),
|
|
cl::init(false));
|
|
CGBINDOPT(FunctionSections);
|
|
|
|
static cl::opt<bool> IgnoreXCOFFVisibility(
|
|
"ignore-xcoff-visibility",
|
|
cl::desc("Not emit the visibility attribute for asm in AIX OS or give "
|
|
"all symbols 'unspecified' visibility in XCOFF object file"),
|
|
cl::init(false));
|
|
CGBINDOPT(IgnoreXCOFFVisibility);
|
|
|
|
static cl::opt<bool> XCOFFTracebackTable(
|
|
"xcoff-traceback-table", cl::desc("Emit the XCOFF traceback table"),
|
|
cl::init(true));
|
|
CGBINDOPT(XCOFFTracebackTable);
|
|
|
|
static cl::opt<std::string> BBSections(
|
|
"basic-block-sections",
|
|
cl::desc("Emit basic blocks into separate sections"),
|
|
cl::value_desc("all | <function list (file)> | labels | none"),
|
|
cl::init("none"));
|
|
CGBINDOPT(BBSections);
|
|
|
|
static cl::opt<std::string> StackProtectorGuard(
|
|
"stack-protector-guard", cl::desc("Stack protector guard mode"),
|
|
cl::init("none"));
|
|
CGBINDOPT(StackProtectorGuard);
|
|
|
|
static cl::opt<std::string> StackProtectorGuardReg(
|
|
"stack-protector-guard-reg", cl::desc("Stack protector guard register"),
|
|
cl::init("none"));
|
|
CGBINDOPT(StackProtectorGuardReg);
|
|
|
|
static cl::opt<unsigned> StackProtectorGuardOffset(
|
|
"stack-protector-guard-offset", cl::desc("Stack protector guard offset"),
|
|
cl::init((unsigned)-1));
|
|
CGBINDOPT(StackProtectorGuardOffset);
|
|
|
|
static cl::opt<unsigned> TLSSize(
|
|
"tls-size", cl::desc("Bit size of immediate TLS offsets"), cl::init(0));
|
|
CGBINDOPT(TLSSize);
|
|
|
|
static cl::opt<bool> EmulatedTLS(
|
|
"emulated-tls", cl::desc("Use emulated TLS model"), cl::init(false));
|
|
CGBINDOPT(EmulatedTLS);
|
|
|
|
static cl::opt<bool> UniqueSectionNames(
|
|
"unique-section-names", cl::desc("Give unique names to every section"),
|
|
cl::init(true));
|
|
CGBINDOPT(UniqueSectionNames);
|
|
|
|
static cl::opt<bool> UniqueBasicBlockSectionNames(
|
|
"unique-basic-block-section-names",
|
|
cl::desc("Give unique names to every basic block section"),
|
|
cl::init(false));
|
|
CGBINDOPT(UniqueBasicBlockSectionNames);
|
|
|
|
static cl::opt<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")));
|
|
CGBINDOPT(EABIVersion);
|
|
|
|
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)")));
|
|
CGBINDOPT(DebuggerTuningOpt);
|
|
|
|
static cl::opt<bool> EnableStackSizeSection(
|
|
"stack-size-section",
|
|
cl::desc("Emit a section containing stack size metadata"),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableStackSizeSection);
|
|
|
|
static cl::opt<bool> EnableAddrsig(
|
|
"addrsig", cl::desc("Emit an address-significance table"),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableAddrsig);
|
|
|
|
static cl::opt<bool> EmitCallSiteInfo(
|
|
"emit-call-site-info",
|
|
cl::desc(
|
|
"Emit call site debug information, if debug information is enabled."),
|
|
cl::init(false));
|
|
CGBINDOPT(EmitCallSiteInfo);
|
|
|
|
static cl::opt<bool> EnableDebugEntryValues(
|
|
"debug-entry-values",
|
|
cl::desc("Enable debug info for the debug entry values."),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableDebugEntryValues);
|
|
|
|
static cl::opt<bool> PseudoProbeForProfiling(
|
|
"pseudo-probe-for-profiling", cl::desc("Emit pseudo probes for AutoFDO"),
|
|
cl::init(false));
|
|
CGBINDOPT(PseudoProbeForProfiling);
|
|
|
|
static cl::opt<bool> ValueTrackingVariableLocations(
|
|
"experimental-debug-variable-locations",
|
|
cl::desc("Use experimental new value-tracking variable locations"),
|
|
cl::init(false));
|
|
CGBINDOPT(ValueTrackingVariableLocations);
|
|
|
|
static cl::opt<bool> EnableMachineFunctionSplitter(
|
|
"split-machine-functions",
|
|
cl::desc("Split out cold basic blocks from machine functions based on "
|
|
"profile information"),
|
|
cl::init(false));
|
|
CGBINDOPT(EnableMachineFunctionSplitter);
|
|
|
|
static cl::opt<bool> ForceDwarfFrameSection(
|
|
"force-dwarf-frame-section",
|
|
cl::desc("Always emit a debug frame section."), cl::init(false));
|
|
CGBINDOPT(ForceDwarfFrameSection);
|
|
|
|
static cl::opt<bool> XRayOmitFunctionIndex(
|
|
"no-xray-index", cl::desc("Don't emit xray_fn_idx section"),
|
|
cl::init(false));
|
|
CGBINDOPT(XRayOmitFunctionIndex);
|
|
|
|
#undef CGBINDOPT
|
|
|
|
mc::RegisterMCTargetOptionsFlags();
|
|
}
|
|
|
|
llvm::BasicBlockSection
|
|
codegen::getBBSectionsMode(llvm::TargetOptions &Options) {
|
|
if (getBBSections() == "all")
|
|
return BasicBlockSection::All;
|
|
else if (getBBSections() == "labels")
|
|
return BasicBlockSection::Labels;
|
|
else if (getBBSections() == "none")
|
|
return BasicBlockSection::None;
|
|
else {
|
|
ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr =
|
|
MemoryBuffer::getFile(getBBSections());
|
|
if (!MBOrErr) {
|
|
errs() << "Error loading basic block sections function list file: "
|
|
<< MBOrErr.getError().message() << "\n";
|
|
} else {
|
|
Options.BBSectionsFuncListBuf = std::move(*MBOrErr);
|
|
}
|
|
return BasicBlockSection::List;
|
|
}
|
|
}
|
|
|
|
llvm::StackProtectorGuards
|
|
codegen::getStackProtectorGuardMode(llvm::TargetOptions &Options) {
|
|
if (getStackProtectorGuard() == "tls")
|
|
return StackProtectorGuards::TLS;
|
|
if (getStackProtectorGuard() == "global")
|
|
return StackProtectorGuards::Global;
|
|
if (getStackProtectorGuard() != "none") {
|
|
ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr =
|
|
MemoryBuffer::getFile(getStackProtectorGuard());
|
|
if (!MBOrErr)
|
|
errs() << "error illegal stack protector guard mode: "
|
|
<< MBOrErr.getError().message() << "\n";
|
|
else
|
|
Options.BBSectionsFuncListBuf = std::move(*MBOrErr);
|
|
}
|
|
return StackProtectorGuards::None;
|
|
}
|
|
|
|
// Common utility function tightly tied to the options listed here. Initializes
|
|
// a TargetOptions object with CodeGen flags and returns it.
|
|
TargetOptions
|
|
codegen::InitTargetOptionsFromCodeGenFlags(const Triple &TheTriple) {
|
|
TargetOptions Options;
|
|
Options.AllowFPOpFusion = getFuseFPOps();
|
|
Options.UnsafeFPMath = getEnableUnsafeFPMath();
|
|
Options.NoInfsFPMath = getEnableNoInfsFPMath();
|
|
Options.NoNaNsFPMath = getEnableNoNaNsFPMath();
|
|
Options.NoSignedZerosFPMath = getEnableNoSignedZerosFPMath();
|
|
Options.NoTrappingFPMath = getEnableNoTrappingFPMath();
|
|
|
|
DenormalMode::DenormalModeKind DenormKind = getDenormalFPMath();
|
|
|
|
// FIXME: Should have separate input and output flags
|
|
Options.setFPDenormalMode(DenormalMode(DenormKind, DenormKind));
|
|
|
|
Options.HonorSignDependentRoundingFPMathOption =
|
|
getEnableHonorSignDependentRoundingFPMath();
|
|
if (getFloatABIForCalls() != FloatABI::Default)
|
|
Options.FloatABIType = getFloatABIForCalls();
|
|
Options.EnableAIXExtendedAltivecABI = getEnableAIXExtendedAltivecABI();
|
|
Options.NoZerosInBSS = getDontPlaceZerosInBSS();
|
|
Options.GuaranteedTailCallOpt = getEnableGuaranteedTailCallOpt();
|
|
Options.StackAlignmentOverride = getOverrideStackAlignment();
|
|
Options.StackSymbolOrdering = getStackSymbolOrdering();
|
|
Options.UseInitArray = !getUseCtors();
|
|
Options.RelaxELFRelocations = getRelaxELFRelocations();
|
|
Options.DataSections =
|
|
getExplicitDataSections().getValueOr(TheTriple.hasDefaultDataSections());
|
|
Options.FunctionSections = getFunctionSections();
|
|
Options.IgnoreXCOFFVisibility = getIgnoreXCOFFVisibility();
|
|
Options.XCOFFTracebackTable = getXCOFFTracebackTable();
|
|
Options.BBSections = getBBSectionsMode(Options);
|
|
Options.UniqueSectionNames = getUniqueSectionNames();
|
|
Options.UniqueBasicBlockSectionNames = getUniqueBasicBlockSectionNames();
|
|
Options.StackProtectorGuard = getStackProtectorGuardMode(Options);
|
|
Options.StackProtectorGuardOffset = getStackProtectorGuardOffset();
|
|
Options.StackProtectorGuardReg = getStackProtectorGuardReg();
|
|
Options.TLSSize = getTLSSize();
|
|
Options.EmulatedTLS = getEmulatedTLS();
|
|
Options.ExplicitEmulatedTLS = EmulatedTLSView->getNumOccurrences() > 0;
|
|
Options.ExceptionModel = getExceptionModel();
|
|
Options.EmitStackSizeSection = getEnableStackSizeSection();
|
|
Options.EnableMachineFunctionSplitter = getEnableMachineFunctionSplitter();
|
|
Options.EmitAddrsig = getEnableAddrsig();
|
|
Options.EmitCallSiteInfo = getEmitCallSiteInfo();
|
|
Options.EnableDebugEntryValues = getEnableDebugEntryValues();
|
|
Options.PseudoProbeForProfiling = getPseudoProbeForProfiling();
|
|
Options.ValueTrackingVariableLocations = getValueTrackingVariableLocations();
|
|
Options.ForceDwarfFrameSection = getForceDwarfFrameSection();
|
|
Options.XRayOmitFunctionIndex = getXRayOmitFunctionIndex();
|
|
|
|
Options.MCOptions = mc::InitMCTargetOptionsFromFlags();
|
|
|
|
Options.ThreadModel = getThreadModel();
|
|
Options.EABIVersion = getEABIVersion();
|
|
Options.DebuggerTuning = getDebuggerTuningOpt();
|
|
|
|
return Options;
|
|
}
|
|
|
|
std::string codegen::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 (getMCPU() == "native")
|
|
return std::string(sys::getHostCPUName());
|
|
|
|
return getMCPU();
|
|
}
|
|
|
|
std::string codegen::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 (getMCPU() == "native") {
|
|
StringMap<bool> HostFeatures;
|
|
if (sys::getHostCPUFeatures(HostFeatures))
|
|
for (auto &F : HostFeatures)
|
|
Features.AddFeature(F.first(), F.second);
|
|
}
|
|
|
|
for (auto const &MAttr : getMAttrs())
|
|
Features.AddFeature(MAttr);
|
|
|
|
return Features.getString();
|
|
}
|
|
|
|
std::vector<std::string> codegen::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 (getMCPU() == "native") {
|
|
StringMap<bool> HostFeatures;
|
|
if (sys::getHostCPUFeatures(HostFeatures))
|
|
for (auto &F : HostFeatures)
|
|
Features.AddFeature(F.first(), F.second);
|
|
}
|
|
|
|
for (auto const &MAttr : getMAttrs())
|
|
Features.AddFeature(MAttr);
|
|
|
|
return Features.getFeatures();
|
|
}
|
|
|
|
void codegen::renderBoolStringAttr(AttrBuilder &B, StringRef Name, bool Val) {
|
|
B.addAttribute(Name, Val ? "true" : "false");
|
|
}
|
|
|
|
#define HANDLE_BOOL_ATTR(CL, AttrName) \
|
|
do { \
|
|
if (CL->getNumOccurrences() > 0 && !F.hasFnAttribute(AttrName)) \
|
|
renderBoolStringAttr(NewAttrs, AttrName, *CL); \
|
|
} while (0)
|
|
|
|
/// Set function attributes of function \p F based on CPU, Features, and command
|
|
/// line flags.
|
|
void codegen::setFunctionAttributes(StringRef CPU, StringRef Features,
|
|
Function &F) {
|
|
auto &Ctx = F.getContext();
|
|
AttributeList Attrs = F.getAttributes();
|
|
AttrBuilder NewAttrs;
|
|
|
|
if (!CPU.empty() && !F.hasFnAttribute("target-cpu"))
|
|
NewAttrs.addAttribute("target-cpu", CPU);
|
|
if (!Features.empty()) {
|
|
// Append the command line features to any that are already on the function.
|
|
StringRef OldFeatures =
|
|
F.getFnAttribute("target-features").getValueAsString();
|
|
if (OldFeatures.empty())
|
|
NewAttrs.addAttribute("target-features", Features);
|
|
else {
|
|
SmallString<256> Appended(OldFeatures);
|
|
Appended.push_back(',');
|
|
Appended.append(Features);
|
|
NewAttrs.addAttribute("target-features", Appended);
|
|
}
|
|
}
|
|
if (FramePointerUsageView->getNumOccurrences() > 0 &&
|
|
!F.hasFnAttribute("frame-pointer")) {
|
|
if (getFramePointerUsage() == FramePointer::All)
|
|
NewAttrs.addAttribute("frame-pointer", "all");
|
|
else if (getFramePointerUsage() == FramePointer::NonLeaf)
|
|
NewAttrs.addAttribute("frame-pointer", "non-leaf");
|
|
else if (getFramePointerUsage() == FramePointer::None)
|
|
NewAttrs.addAttribute("frame-pointer", "none");
|
|
}
|
|
if (DisableTailCallsView->getNumOccurrences() > 0)
|
|
NewAttrs.addAttribute("disable-tail-calls",
|
|
toStringRef(getDisableTailCalls()));
|
|
if (getStackRealign())
|
|
NewAttrs.addAttribute("stackrealign");
|
|
|
|
HANDLE_BOOL_ATTR(EnableUnsafeFPMathView, "unsafe-fp-math");
|
|
HANDLE_BOOL_ATTR(EnableNoInfsFPMathView, "no-infs-fp-math");
|
|
HANDLE_BOOL_ATTR(EnableNoNaNsFPMathView, "no-nans-fp-math");
|
|
HANDLE_BOOL_ATTR(EnableNoSignedZerosFPMathView, "no-signed-zeros-fp-math");
|
|
|
|
if (DenormalFPMathView->getNumOccurrences() > 0 &&
|
|
!F.hasFnAttribute("denormal-fp-math")) {
|
|
DenormalMode::DenormalModeKind DenormKind = getDenormalFPMath();
|
|
|
|
// FIXME: Command line flag should expose separate input/output modes.
|
|
NewAttrs.addAttribute("denormal-fp-math",
|
|
DenormalMode(DenormKind, DenormKind).str());
|
|
}
|
|
|
|
if (DenormalFP32MathView->getNumOccurrences() > 0 &&
|
|
!F.hasFnAttribute("denormal-fp-math-f32")) {
|
|
// FIXME: Command line flag should expose separate input/output modes.
|
|
DenormalMode::DenormalModeKind DenormKind = getDenormalFP32Math();
|
|
|
|
NewAttrs.addAttribute(
|
|
"denormal-fp-math-f32",
|
|
DenormalMode(DenormKind, DenormKind).str());
|
|
}
|
|
|
|
if (TrapFuncNameView->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(
|
|
AttributeList::FunctionIndex,
|
|
Attribute::get(Ctx, "trap-func-name", getTrapFuncName()));
|
|
|
|
// Let NewAttrs override Attrs.
|
|
F.setAttributes(
|
|
Attrs.addAttributes(Ctx, AttributeList::FunctionIndex, NewAttrs));
|
|
}
|
|
|
|
/// Set function attributes of functions in Module M based on CPU,
|
|
/// Features, and command line flags.
|
|
void codegen::setFunctionAttributes(StringRef CPU, StringRef Features,
|
|
Module &M) {
|
|
for (Function &F : M)
|
|
setFunctionAttributes(CPU, Features, F);
|
|
}
|