[cfe-commits] r166347 - in /cfe/trunk: include/clang/Driver/Arg.h include/clang/Driver/ArgList.h include/clang/Driver/OptTable.h include/clang/Driver/Option.h lib/Driver/Arg.cpp lib/Driver/ArgList.cpp lib/Driver/OptTable.cpp lib/Driver/Option.cpp lib/Driver/ToolChains.cpp
Michael J. Spencer
bigcheesegs at gmail.com
Fri Oct 19 15:36:40 PDT 2012
Author: mspencer
Date: Fri Oct 19 17:36:40 2012
New Revision: 166347
URL: http://llvm.org/viewvc/llvm-project?rev=166347&view=rev
Log:
[Options] make Option a value type.
Modified:
cfe/trunk/include/clang/Driver/Arg.h
cfe/trunk/include/clang/Driver/ArgList.h
cfe/trunk/include/clang/Driver/OptTable.h
cfe/trunk/include/clang/Driver/Option.h
cfe/trunk/lib/Driver/Arg.cpp
cfe/trunk/lib/Driver/ArgList.cpp
cfe/trunk/lib/Driver/OptTable.cpp
cfe/trunk/lib/Driver/Option.cpp
cfe/trunk/lib/Driver/ToolChains.cpp
Modified: cfe/trunk/include/clang/Driver/Arg.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Arg.h?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Arg.h (original)
+++ cfe/trunk/include/clang/Driver/Arg.h Fri Oct 19 17:36:40 2012
@@ -15,6 +15,8 @@
#ifndef CLANG_DRIVER_ARG_H_
#define CLANG_DRIVER_ARG_H_
+#include "clang/Driver/Option.h"
+
#include "Util.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
@@ -23,7 +25,6 @@
namespace clang {
namespace driver {
class ArgList;
- class Option;
/// \brief A concrete instance of a particular driver option.
///
@@ -38,7 +39,7 @@
private:
/// \brief The option this argument is an instance of.
- const Option *Opt;
+ const Option Opt;
/// \brief The argument this argument was derived from (during tool chain
/// argument translation), if any.
@@ -60,14 +61,14 @@
SmallVector<const char *, 2> Values;
public:
- Arg(const Option *Opt, unsigned Index, const Arg *BaseArg = 0);
- Arg(const Option *Opt, unsigned Index,
+ Arg(const Option Opt, unsigned Index, const Arg *BaseArg = 0);
+ Arg(const Option Opt, unsigned Index,
const char *Value0, const Arg *BaseArg = 0);
- Arg(const Option *Opt, unsigned Index,
+ Arg(const Option Opt, unsigned Index,
const char *Value0, const char *Value1, const Arg *BaseArg = 0);
~Arg();
- const Option &getOption() const { return *Opt; }
+ const Option getOption() const { return Opt; }
unsigned getIndex() const { return Index; }
/// \brief Return the base argument which generated this arg.
Modified: cfe/trunk/include/clang/Driver/ArgList.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/ArgList.h?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/ArgList.h (original)
+++ cfe/trunk/include/clang/Driver/ArgList.h Fri Oct 19 17:36:40 2012
@@ -11,6 +11,7 @@
#define CLANG_DRIVER_ARGLIST_H_
#include "clang/Basic/LLVM.h"
+#include "clang/Driver/Option.h"
#include "clang/Driver/OptSpecifier.h"
#include "clang/Driver/Util.h"
#include "llvm/ADT/SmallVector.h"
@@ -374,14 +375,14 @@
/// AddFlagArg - Construct a new FlagArg for the given option \p Id and
/// append it to the argument list.
- void AddFlagArg(const Arg *BaseArg, const Option *Opt) {
+ void AddFlagArg(const Arg *BaseArg, const Option Opt) {
append(MakeFlagArg(BaseArg, Opt));
}
/// AddPositionalArg - Construct a new Positional arg for the given option
/// \p Id, with the provided \p Value and append it to the argument
/// list.
- void AddPositionalArg(const Arg *BaseArg, const Option *Opt,
+ void AddPositionalArg(const Arg *BaseArg, const Option Opt,
StringRef Value) {
append(MakePositionalArg(BaseArg, Opt, Value));
}
@@ -390,7 +391,7 @@
/// AddSeparateArg - Construct a new Positional arg for the given option
/// \p Id, with the provided \p Value and append it to the argument
/// list.
- void AddSeparateArg(const Arg *BaseArg, const Option *Opt,
+ void AddSeparateArg(const Arg *BaseArg, const Option Opt,
StringRef Value) {
append(MakeSeparateArg(BaseArg, Opt, Value));
}
@@ -398,28 +399,28 @@
/// AddJoinedArg - Construct a new Positional arg for the given option
/// \p Id, with the provided \p Value and append it to the argument list.
- void AddJoinedArg(const Arg *BaseArg, const Option *Opt,
+ void AddJoinedArg(const Arg *BaseArg, const Option Opt,
StringRef Value) {
append(MakeJoinedArg(BaseArg, Opt, Value));
}
/// MakeFlagArg - Construct a new FlagArg for the given option \p Id.
- Arg *MakeFlagArg(const Arg *BaseArg, const Option *Opt) const;
+ Arg *MakeFlagArg(const Arg *BaseArg, const Option Opt) const;
/// MakePositionalArg - Construct a new Positional arg for the
/// given option \p Id, with the provided \p Value.
- Arg *MakePositionalArg(const Arg *BaseArg, const Option *Opt,
+ Arg *MakePositionalArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const;
/// MakeSeparateArg - Construct a new Positional arg for the
/// given option \p Id, with the provided \p Value.
- Arg *MakeSeparateArg(const Arg *BaseArg, const Option *Opt,
+ Arg *MakeSeparateArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const;
/// MakeJoinedArg - Construct a new Positional arg for the
/// given option \p Id, with the provided \p Value.
- Arg *MakeJoinedArg(const Arg *BaseArg, const Option *Opt,
+ Arg *MakeJoinedArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const;
/// @}
Modified: cfe/trunk/include/clang/Driver/OptTable.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/OptTable.h?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/OptTable.h (original)
+++ cfe/trunk/include/clang/Driver/OptTable.h Fri Oct 19 17:36:40 2012
@@ -47,14 +47,8 @@
const Info *OptionInfos;
unsigned NumOptionInfos;
- /// \brief The lazily constructed options table, indexed by option::ID - 1.
- mutable Option **Options;
-
- /// \brief Prebound input option instance.
- const Option *TheInputOption;
-
- /// \brief Prebound unknown option instance.
- const Option *TheUnknownOption;
+ unsigned TheInputOptionID;
+ unsigned TheUnknownOptionID;
/// The index of the first option which can be parsed (i.e., is not a
/// special option like 'input' or 'unknown', and is not an option group).
@@ -67,8 +61,6 @@
return OptionInfos[id - 1];
}
- Option *CreateOption(unsigned id) const;
-
protected:
OptTable(const Info *_OptionInfos, unsigned _NumOptionInfos);
public:
@@ -81,17 +73,7 @@
/// if necessary.
///
/// \return The option, or null for the INVALID option id.
- const Option *getOption(OptSpecifier Opt) const {
- unsigned id = Opt.getID();
- if (id == 0)
- return 0;
-
- assert((unsigned) (id - 1) < getNumOptions() && "Invalid ID.");
- Option *&Entry = Options[id - 1];
- if (!Entry)
- Entry = CreateOption(id);
- return Entry;
- }
+ const Option getOption(OptSpecifier Opt) const;
/// \brief Lookup the name of the given option.
const char *getOptionName(OptSpecifier id) const {
Modified: cfe/trunk/include/clang/Driver/Option.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Option.h?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Option.h (original)
+++ cfe/trunk/include/clang/Driver/Option.h Fri Oct 19 17:36:40 2012
@@ -76,11 +76,36 @@
Option(const OptTable::Info *Info, const OptTable *Owner);
~Option();
- unsigned getID() const { return Info->ID; }
- OptionClass getKind() const { return OptionClass(Info->Kind); }
- StringRef getName() const { return Info->Name; }
- const Option *getGroup() const { return Owner->getOption(Info->GroupID); }
- const Option *getAlias() const { return Owner->getOption(Info->AliasID); }
+ bool isValid() const {
+ return Info != 0;
+ }
+
+ unsigned getID() const {
+ assert(Info && "Must have a valid info!");
+ return Info->ID;
+ }
+
+ OptionClass getKind() const {
+ assert(Info && "Must have a valid info!");
+ return OptionClass(Info->Kind);
+ }
+
+ StringRef getName() const {
+ assert(Info && "Must have a valid info!");
+ return Info->Name;
+ }
+
+ const Option getGroup() const {
+ assert(Info && "Must have a valid info!");
+ assert(Owner && "Must have a valid owner!");
+ return Owner->getOption(Info->GroupID);
+ }
+
+ const Option getAlias() const {
+ assert(Info && "Must have a valid info!");
+ assert(Owner && "Must have a valid owner!");
+ return Owner->getOption(Info->AliasID);
+ }
unsigned getNumArgs() const { return Info->Param; }
@@ -130,16 +155,16 @@
/// getUnaliasedOption - Return the final option this option
/// aliases (itself, if the option has no alias).
- const Option *getUnaliasedOption() const {
- const Option *Alias = getAlias();
- if (Alias) return Alias->getUnaliasedOption();
- return this;
+ const Option getUnaliasedOption() const {
+ const Option Alias = getAlias();
+ if (Alias.isValid()) return Alias.getUnaliasedOption();
+ return *this;
}
/// getRenderName - Return the name to use when rendering this
/// option.
StringRef getRenderName() const {
- return getUnaliasedOption()->getName();
+ return getUnaliasedOption().getName();
}
/// matches - Predicate for whether this option is part of the
Modified: cfe/trunk/lib/Driver/Arg.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Arg.cpp?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Arg.cpp (original)
+++ cfe/trunk/lib/Driver/Arg.cpp Fri Oct 19 17:36:40 2012
@@ -16,19 +16,19 @@
using namespace clang::driver;
-Arg::Arg(const Option *_Opt, unsigned _Index, const Arg *_BaseArg)
+Arg::Arg(const Option _Opt, unsigned _Index, const Arg *_BaseArg)
: Opt(_Opt), BaseArg(_BaseArg), Index(_Index),
Claimed(false), OwnsValues(false) {
}
-Arg::Arg(const Option *_Opt, unsigned _Index,
+Arg::Arg(const Option _Opt, unsigned _Index,
const char *Value0, const Arg *_BaseArg)
: Opt(_Opt), BaseArg(_BaseArg), Index(_Index),
Claimed(false), OwnsValues(false) {
Values.push_back(Value0);
}
-Arg::Arg(const Option *_Opt, unsigned _Index,
+Arg::Arg(const Option _Opt, unsigned _Index,
const char *Value0, const char *Value1, const Arg *_BaseArg)
: Opt(_Opt), BaseArg(_BaseArg), Index(_Index),
Claimed(false), OwnsValues(false) {
@@ -47,7 +47,7 @@
llvm::errs() << "<";
llvm::errs() << " Opt:";
- Opt->dump();
+ Opt.dump();
llvm::errs() << " Index:" << Index;
@@ -104,7 +104,7 @@
Output.push_back(Args.MakeArgString(OS.str()));
break;
}
-
+
case Option::RenderJoinedStyle:
Output.push_back(Args.GetOrMakeJoinedArgString(
getIndex(), getOption().getName(), getValue(Args, 0)));
Modified: cfe/trunk/lib/Driver/ArgList.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ArgList.cpp?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ArgList.cpp (original)
+++ cfe/trunk/lib/Driver/ArgList.cpp Fri Oct 19 17:36:40 2012
@@ -362,13 +362,13 @@
return BaseArgs.MakeArgString(Str);
}
-Arg *DerivedArgList::MakeFlagArg(const Arg *BaseArg, const Option *Opt) const {
- Arg *A = new Arg(Opt, BaseArgs.MakeIndex(Opt->getName()), BaseArg);
+Arg *DerivedArgList::MakeFlagArg(const Arg *BaseArg, const Option Opt) const {
+ Arg *A = new Arg(Opt, BaseArgs.MakeIndex(Opt.getName()), BaseArg);
SynthesizedArgs.push_back(A);
return A;
}
-Arg *DerivedArgList::MakePositionalArg(const Arg *BaseArg, const Option *Opt,
+Arg *DerivedArgList::MakePositionalArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const {
unsigned Index = BaseArgs.MakeIndex(Value);
Arg *A = new Arg(Opt, Index, BaseArgs.getArgString(Index), BaseArg);
@@ -376,19 +376,19 @@
return A;
}
-Arg *DerivedArgList::MakeSeparateArg(const Arg *BaseArg, const Option *Opt,
+Arg *DerivedArgList::MakeSeparateArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const {
- unsigned Index = BaseArgs.MakeIndex(Opt->getName(), Value);
+ unsigned Index = BaseArgs.MakeIndex(Opt.getName(), Value);
Arg *A = new Arg(Opt, Index, BaseArgs.getArgString(Index + 1), BaseArg);
SynthesizedArgs.push_back(A);
return A;
}
-Arg *DerivedArgList::MakeJoinedArg(const Arg *BaseArg, const Option *Opt,
+Arg *DerivedArgList::MakeJoinedArg(const Arg *BaseArg, const Option Opt,
StringRef Value) const {
- unsigned Index = BaseArgs.MakeIndex(Opt->getName().str() + Value.str());
+ unsigned Index = BaseArgs.MakeIndex(Opt.getName().str() + Value.str());
Arg *A = new Arg(Opt, Index,
- BaseArgs.getArgString(Index) + Opt->getName().size(),
+ BaseArgs.getArgString(Index) + Opt.getName().size(),
BaseArg);
SynthesizedArgs.push_back(A);
return A;
Modified: cfe/trunk/lib/Driver/OptTable.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/OptTable.cpp?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/OptTable.cpp (original)
+++ cfe/trunk/lib/Driver/OptTable.cpp Fri Oct 19 17:36:40 2012
@@ -11,6 +11,7 @@
#include "clang/Driver/Arg.h"
#include "clang/Driver/ArgList.h"
#include "clang/Driver/Option.h"
+#include "clang/Driver/Options.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/ErrorHandling.h"
#include <algorithm>
@@ -78,23 +79,24 @@
//
OptTable::OptTable(const Info *_OptionInfos, unsigned _NumOptionInfos)
- : OptionInfos(_OptionInfos), NumOptionInfos(_NumOptionInfos),
- Options(new Option*[NumOptionInfos]),
- TheInputOption(0), TheUnknownOption(0), FirstSearchableIndex(0)
+ : OptionInfos(_OptionInfos),
+ NumOptionInfos(_NumOptionInfos),
+ TheInputOptionID(0),
+ TheUnknownOptionID(0),
+ FirstSearchableIndex(0)
{
// Explicitly zero initialize the error to work around a bug in array
// value-initialization on MinGW with gcc 4.3.5.
- memset(Options, 0, sizeof(*Options) * NumOptionInfos);
// Find start of normal options.
for (unsigned i = 0, e = getNumOptions(); i != e; ++i) {
unsigned Kind = getInfo(i + 1).Kind;
if (Kind == Option::InputClass) {
- assert(!TheInputOption && "Cannot have multiple input options!");
- TheInputOption = getOption(i + 1);
+ assert(!TheInputOptionID && "Cannot have multiple input options!");
+ TheInputOptionID = getInfo(i + 1).ID;
} else if (Kind == Option::UnknownClass) {
- assert(!TheUnknownOption && "Cannot have multiple input options!");
- TheUnknownOption = getOption(i + 1);
+ assert(!TheUnknownOptionID && "Cannot have multiple unknown options!");
+ TheUnknownOptionID = getInfo(i + 1).ID;
} else if (Kind != Option::GroupClass) {
FirstSearchableIndex = i;
break;
@@ -115,8 +117,8 @@
// Check that options are in order.
for (unsigned i = FirstSearchableIndex+1, e = getNumOptions(); i != e; ++i) {
if (!(getInfo(i) < getInfo(i + 1))) {
- getOption(i)->dump();
- getOption(i + 1)->dump();
+ getOption(i).dump();
+ getOption(i + 1).dump();
llvm_unreachable("Options are not in order!");
}
}
@@ -124,17 +126,18 @@
}
OptTable::~OptTable() {
- for (unsigned i = 0, e = getNumOptions(); i != e; ++i)
- delete Options[i];
- delete[] Options;
}
-bool OptTable::isOptionHelpHidden(OptSpecifier id) const {
- return getInfo(id).Flags & options::HelpHidden;
+const Option OptTable::getOption(OptSpecifier Opt) const {
+ unsigned id = Opt.getID();
+ if (id == 0)
+ return Option(0, 0);
+ assert((unsigned) (id - 1) < getNumOptions() && "Invalid ID.");
+ return Option(&getInfo(id), this);
}
-Option *OptTable::CreateOption(unsigned id) const {
- return new Option(&getInfo(id), this);
+bool OptTable::isOptionHelpHidden(OptSpecifier id) const {
+ return getInfo(id).Flags & options::HelpHidden;
}
Arg *OptTable::ParseOneArg(const ArgList &Args, unsigned &Index) const {
@@ -143,7 +146,7 @@
// Anything that doesn't start with '-' is an input, as is '-' itself.
if (Str[0] != '-' || Str[1] == '\0')
- return new Arg(TheInputOption, Index++, Str);
+ return new Arg(getOption(TheInputOptionID), Index++, Str);
const Info *Start = OptionInfos + FirstSearchableIndex;
const Info *End = OptionInfos + getNumOptions();
@@ -169,7 +172,7 @@
break;
// See if this option matches.
- if (Arg *A = getOption(Start - OptionInfos + 1)->accept(Args, Index))
+ if (Arg *A = getOption(Start - OptionInfos + 1).accept(Args, Index))
return A;
// Otherwise, see if this argument was missing values.
@@ -177,7 +180,7 @@
return 0;
}
- return new Arg(TheUnknownOption, Index++, Str);
+ return new Arg(getOption(TheUnknownOptionID), Index++, Str);
}
InputArgList *OptTable::ParseArgs(const char* const *ArgBegin,
Modified: cfe/trunk/lib/Driver/Option.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Option.cpp?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Option.cpp (original)
+++ cfe/trunk/lib/Driver/Option.cpp Fri Oct 19 17:36:40 2012
@@ -23,7 +23,8 @@
// Multi-level aliases are not supported, and alias options cannot
// have groups. This just simplifies option tracking, it is not an
// inherent limitation.
- assert((!getAlias() || (!getAlias()->getAlias() && !getGroup())) &&
+ assert(!Info || (!getAlias().isValid() || (!getAlias().getAlias().isValid() &&
+ !getGroup().isValid())) &&
"Multi-level aliases and aliases with groups are unsupported.");
}
@@ -49,16 +50,16 @@
llvm::errs() << " Name:\"" << getName() << '"';
- const Option *Group = getGroup();
- if (Group) {
+ const Option Group = getGroup();
+ if (Group.isValid()) {
llvm::errs() << " Group:";
- Group->dump();
+ Group.dump();
}
- const Option *Alias = getAlias();
- if (Alias) {
+ const Option Alias = getAlias();
+ if (Alias.isValid()) {
llvm::errs() << " Alias:";
- Alias->dump();
+ Alias.dump();
}
if (getKind() == MultiArgClass)
@@ -69,17 +70,17 @@
bool Option::matches(OptSpecifier Opt) const {
// Aliases are never considered in matching, look through them.
- const Option *Alias = getAlias();
- if (Alias)
- return Alias->matches(Opt);
+ const Option Alias = getAlias();
+ if (Alias.isValid())
+ return Alias.matches(Opt);
// Check exact match.
if (getID() == Opt.getID())
return true;
- const Option *Group = getGroup();
- if (Group)
- return Group->matches(Opt);
+ const Option Group = getGroup();
+ if (Group.isValid())
+ return Group.matches(Opt);
return false;
}
@@ -155,7 +156,7 @@
// FIXME: Avoid strlen.
if (getName().size() != strlen(Args.getArgString(Index))) {
const char *Value = Args.getArgString(Index) + getName().size();
- return new Arg(this, Index++, Value);
+ return new Arg(*this, Index++, Value);
}
// Otherwise it must be separate.
Modified: cfe/trunk/lib/Driver/ToolChains.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains.cpp?rev=166347&r1=166346&r2=166347&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains.cpp Fri Oct 19 17:36:40 2012
@@ -485,7 +485,7 @@
}
// When using the define to indicate the simulator, we force
// 10.6 macosx target.
- const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
+ const Option O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
OSXVersion = Args.MakeJoinedArg(0, O, "10.6");
Args.append(OSXVersion);
break;
@@ -559,21 +559,21 @@
}
if (!OSXTarget.empty()) {
- const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
+ const Option O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
OSXVersion = Args.MakeJoinedArg(0, O, OSXTarget);
Args.append(OSXVersion);
} else if (!iOSTarget.empty()) {
- const Option *O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
+ const Option O = Opts.getOption(options::OPT_miphoneos_version_min_EQ);
iOSVersion = Args.MakeJoinedArg(0, O, iOSTarget);
Args.append(iOSVersion);
} else if (!iOSSimTarget.empty()) {
- const Option *O = Opts.getOption(
+ const Option O = Opts.getOption(
options::OPT_mios_simulator_version_min_EQ);
iOSSimVersion = Args.MakeJoinedArg(0, O, iOSSimTarget);
Args.append(iOSSimVersion);
} else {
// Otherwise, assume we are targeting OS X.
- const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
+ const Option O = Opts.getOption(options::OPT_mmacosx_version_min_EQ);
OSXVersion = Args.MakeJoinedArg(0, O, MacosxVersionMin);
Args.append(OSXVersion);
}
@@ -835,8 +835,8 @@
// how the driver driver works.
if (BoundArch) {
StringRef Name = BoundArch;
- const Option *MCpu = Opts.getOption(options::OPT_mcpu_EQ);
- const Option *MArch = Opts.getOption(options::OPT_march_EQ);
+ const Option MCpu = Opts.getOption(options::OPT_mcpu_EQ);
+ const Option MArch = Opts.getOption(options::OPT_march_EQ);
// This code must be kept in sync with LLVM's getArchTypeForDarwinArch,
// which defines the list of which architectures we accept.
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