//===-- Target/TargetMachineRegistry.h - Target Registration ----*- C++ -*-===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This file exposes two classes: the TargetMachineRegistry class, which allows
#ifndef LLVM_TARGET_TARGETMACHINEREGISTRY_H
#define LLVM_TARGET_TARGETMACHINEREGISTRY_H
-#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Registry.h"
namespace llvm {
class Module;
class TargetMachine;
- class IntrinsicLowering;
-
- struct TargetMachineRegistry {
- struct Entry;
-
- /// TargetMachineRegistry::getList - This static method returns the list of
- /// target machines that are registered with the system.
- static const Entry *getList() { return List; }
+
+ struct TargetMachineRegistryEntry {
+ const char *Name;
+ const char *ShortDesc;
+ TargetMachine *(*CtorFn)(const Module &, const std::string &);
+ unsigned (*ModuleMatchQualityFn)(const Module &M);
+ unsigned (*JITMatchQualityFn)();
+
+ public:
+ TargetMachineRegistryEntry(const char *N, const char *SD,
+ TargetMachine *(*CF)(const Module &, const std::string &),
+ unsigned (*MMF)(const Module &M),
+ unsigned (*JMF)())
+ : Name(N), ShortDesc(SD), CtorFn(CF), ModuleMatchQualityFn(MMF),
+ JITMatchQualityFn(JMF) {}
+ };
+
+ template<>
+ class RegistryTraits<TargetMachine> {
+ public:
+ typedef TargetMachineRegistryEntry entry;
+
+ static const char *nameof(const entry &Entry) { return Entry.Name; }
+ static const char *descof(const entry &Entry) { return Entry.ShortDesc; }
+ };
+ struct TargetMachineRegistry : public Registry<TargetMachine> {
/// getClosestStaticTargetForModule - Given an LLVM module, pick the best
/// target that is compatible with the module. If no close target can be
/// found, this returns null and sets the Error string to a reason.
- static const Entry *getClosestStaticTargetForModule(const Module &M,
+ static const entry *getClosestStaticTargetForModule(const Module &M,
std::string &Error);
- /// getClosestTargetForJIT - Given an LLVM module, pick the best target that
- /// is compatible with the current host and the specified module. If no
- /// close target can be found, this returns null and sets the Error string
- /// to a reason.
- static const Entry *getClosestTargetForJIT(std::string &Error);
-
-
- /// Entry - One instance of this struct is created for each target that is
- /// registered.
- struct Entry {
- const char *Name;
- const char *ShortDesc;
- TargetMachine *(*CtorFn)(const Module &, IntrinsicLowering*);
- unsigned (*ModuleMatchQualityFn)(const Module &M);
- unsigned (*JITMatchQualityFn)();
+ /// getClosestTargetForJIT - Pick the best target that is compatible with
+ /// the current host. If no close target can be found, this returns null
+ /// and sets the Error string to a reason.
+ static const entry *getClosestTargetForJIT(std::string &Error);
- const Entry *getNext() const { return Next; }
-
- protected:
- Entry(const char *N, const char *SD,
- TargetMachine *(*CF)(const Module &, IntrinsicLowering*),
- unsigned (*MMF)(const Module &M), unsigned (*JMF)());
- private:
- const Entry *Next; // Next entry in the linked list.
- };
-
- private:
- static const Entry *List;
};
//===--------------------------------------------------------------------===//
/// RegisterTarget - This class is used to make targets automatically register
/// themselves with the tool they are linked. Targets should define an
/// instance of this and implement the static methods described in the
- /// TargetMachine comments..
+ /// TargetMachine comments.
+ /// The type 'TargetMachineImpl' should provide a constructor with two
+ /// parameters:
+ /// - const Module& M: the module that is being compiled:
+ /// - const std::string& FS: target-specific string describing target
+ /// flavour.
+
template<class TargetMachineImpl>
- struct RegisterTarget : public TargetMachineRegistry::Entry {
- RegisterTarget(const char *Name, const char *ShortDesc) :
- TargetMachineRegistry::Entry(Name, ShortDesc, &Allocator,
- &TargetMachineImpl::getModuleMatchQuality,
- &TargetMachineImpl::getJITMatchQuality) {
- }
- private:
- static TargetMachine *Allocator(const Module &M, IntrinsicLowering *IL) {
- return new TargetMachineImpl(M, IL);
- }
- };
+ struct RegisterTarget {
+ RegisterTarget(const char *Name, const char *ShortDesc)
+ : Entry(Name, ShortDesc, &Allocator,
+ &TargetMachineImpl::getModuleMatchQuality,
+ &TargetMachineImpl::getJITMatchQuality),
+ Node(Entry)
+ {}
- /// TargetRegistrationListener - This class allows code to listen for targets
- /// that are dynamically registered, and be notified of it when they are.
- class TargetRegistrationListener {
- TargetRegistrationListener **Prev, *Next;
- public:
- TargetRegistrationListener();
- virtual ~TargetRegistrationListener();
-
- TargetRegistrationListener *getNext() const { return Next; }
+ private:
+ TargetMachineRegistry::entry Entry;
+ TargetMachineRegistry::node Node;
- virtual void targetRegistered(const TargetMachineRegistry::Entry *E) = 0;
- };
-
-
- //===--------------------------------------------------------------------===//
- /// TargetNameParser - This option can be used to provide a command line
- /// option to choose among the various registered targets (commonly -march).
- class TargetNameParser : public TargetRegistrationListener,
- public cl::parser<const TargetMachineRegistry::Entry*> {
- public:
- void initialize(cl::Option &O) {
- for (const TargetMachineRegistry::Entry *E =
- TargetMachineRegistry::getList(); E; E = E->getNext())
- Values.push_back(std::make_pair(E->Name,
- std::make_pair(E, E->ShortDesc)));
- cl::parser<const TargetMachineRegistry::Entry*>::initialize(O);
- }
-
- virtual void targetRegistered(const TargetMachineRegistry::Entry *E) {
- Values.push_back(std::make_pair(E->Name,
- std::make_pair(E, E->ShortDesc)));
+ static TargetMachine *Allocator(const Module &M, const std::string &FS) {
+ return new TargetMachineImpl(M, FS);
}
};
+
}
#endif
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