mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 11:02:59 +02:00
ae65e281f3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
216 lines
11 KiB
C++
216 lines
11 KiB
C++
//===- llvm/PassSupport.h - Pass Support code -------------------*- 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 defines stuff that is used to define and "use" Passes. This file
|
|
// is automatically #included by Pass.h, so:
|
|
//
|
|
// NO .CPP FILES SHOULD INCLUDE THIS FILE DIRECTLY
|
|
//
|
|
// Instead, #include Pass.h.
|
|
//
|
|
// This file defines Pass registration code and classes used for it.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_PASSSUPPORT_H
|
|
#define LLVM_PASSSUPPORT_H
|
|
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "llvm/PassInfo.h"
|
|
#include "llvm/PassRegistry.h"
|
|
#include "llvm/Support/Threading.h"
|
|
#include <functional>
|
|
|
|
namespace llvm {
|
|
|
|
class Pass;
|
|
|
|
#define INITIALIZE_PASS(passName, arg, name, cfg, analysis) \
|
|
static void *initialize##passName##PassOnce(PassRegistry &Registry) { \
|
|
PassInfo *PI = new PassInfo( \
|
|
name, arg, &passName::ID, \
|
|
PassInfo::NormalCtor_t(callDefaultCtor<passName>), cfg, analysis); \
|
|
Registry.registerPass(*PI, true); \
|
|
return PI; \
|
|
} \
|
|
static llvm::once_flag Initialize##passName##PassFlag; \
|
|
void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
|
|
llvm::call_once(Initialize##passName##PassFlag, \
|
|
initialize##passName##PassOnce, std::ref(Registry)); \
|
|
}
|
|
|
|
#define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis) \
|
|
static void *initialize##passName##PassOnce(PassRegistry &Registry) {
|
|
|
|
#define INITIALIZE_PASS_DEPENDENCY(depName) initialize##depName##Pass(Registry);
|
|
#define INITIALIZE_AG_DEPENDENCY(depName) \
|
|
initialize##depName##AnalysisGroup(Registry);
|
|
|
|
#define INITIALIZE_PASS_END(passName, arg, name, cfg, analysis) \
|
|
PassInfo *PI = new PassInfo( \
|
|
name, arg, &passName::ID, \
|
|
PassInfo::NormalCtor_t(callDefaultCtor<passName>), cfg, analysis); \
|
|
Registry.registerPass(*PI, true); \
|
|
return PI; \
|
|
} \
|
|
static llvm::once_flag Initialize##passName##PassFlag; \
|
|
void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
|
|
llvm::call_once(Initialize##passName##PassFlag, \
|
|
initialize##passName##PassOnce, std::ref(Registry)); \
|
|
}
|
|
|
|
#define INITIALIZE_PASS_WITH_OPTIONS(PassName, Arg, Name, Cfg, Analysis) \
|
|
INITIALIZE_PASS_BEGIN(PassName, Arg, Name, Cfg, Analysis) \
|
|
PassName::registerOptions(); \
|
|
INITIALIZE_PASS_END(PassName, Arg, Name, Cfg, Analysis)
|
|
|
|
#define INITIALIZE_PASS_WITH_OPTIONS_BEGIN(PassName, Arg, Name, Cfg, Analysis) \
|
|
INITIALIZE_PASS_BEGIN(PassName, Arg, Name, Cfg, Analysis) \
|
|
PassName::registerOptions();
|
|
|
|
template <typename PassName> Pass *callDefaultCtor() { return new PassName(); }
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// RegisterPass<t> template - This template class is used to notify the system
|
|
/// that a Pass is available for use, and registers it into the internal
|
|
/// database maintained by the PassManager. Unless this template is used, opt,
|
|
/// for example will not be able to see the pass and attempts to create the pass
|
|
/// will fail. This template is used in the follow manner (at global scope, in
|
|
/// your .cpp file):
|
|
///
|
|
/// static RegisterPass<YourPassClassName> tmp("passopt", "My Pass Name");
|
|
///
|
|
/// This statement will cause your pass to be created by calling the default
|
|
/// constructor exposed by the pass.
|
|
template <typename passName> struct RegisterPass : public PassInfo {
|
|
// Register Pass using default constructor...
|
|
RegisterPass(StringRef PassArg, StringRef Name, bool CFGOnly = false,
|
|
bool is_analysis = false)
|
|
: PassInfo(Name, PassArg, &passName::ID,
|
|
PassInfo::NormalCtor_t(callDefaultCtor<passName>), CFGOnly,
|
|
is_analysis) {
|
|
PassRegistry::getPassRegistry()->registerPass(*this);
|
|
}
|
|
};
|
|
|
|
/// RegisterAnalysisGroup - Register a Pass as a member of an analysis _group_.
|
|
/// Analysis groups are used to define an interface (which need not derive from
|
|
/// Pass) that is required by passes to do their job. Analysis Groups differ
|
|
/// from normal analyses because any available implementation of the group will
|
|
/// be used if it is available.
|
|
///
|
|
/// If no analysis implementing the interface is available, a default
|
|
/// implementation is created and added. A pass registers itself as the default
|
|
/// implementation by specifying 'true' as the second template argument of this
|
|
/// class.
|
|
///
|
|
/// In addition to registering itself as an analysis group member, a pass must
|
|
/// register itself normally as well. Passes may be members of multiple groups
|
|
/// and may still be "required" specifically by name.
|
|
///
|
|
/// The actual interface may also be registered as well (by not specifying the
|
|
/// second template argument). The interface should be registered to associate
|
|
/// a nice name with the interface.
|
|
class RegisterAGBase : public PassInfo {
|
|
public:
|
|
RegisterAGBase(StringRef Name, const void *InterfaceID,
|
|
const void *PassID = nullptr, bool isDefault = false);
|
|
};
|
|
|
|
template <typename Interface, bool Default = false>
|
|
struct RegisterAnalysisGroup : public RegisterAGBase {
|
|
explicit RegisterAnalysisGroup(PassInfo &RPB)
|
|
: RegisterAGBase(RPB.getPassName(), &Interface::ID, RPB.getTypeInfo(),
|
|
Default) {}
|
|
|
|
explicit RegisterAnalysisGroup(const char *Name)
|
|
: RegisterAGBase(Name, &Interface::ID) {}
|
|
};
|
|
|
|
#define INITIALIZE_ANALYSIS_GROUP(agName, name, defaultPass) \
|
|
static void *initialize##agName##AnalysisGroupOnce(PassRegistry &Registry) { \
|
|
initialize##defaultPass##Pass(Registry); \
|
|
PassInfo *AI = new PassInfo(name, &agName::ID); \
|
|
Registry.registerAnalysisGroup(&agName::ID, 0, *AI, false, true); \
|
|
return AI; \
|
|
} \
|
|
static llvm::once_flag Initialize##agName##AnalysisGroupFlag; \
|
|
void llvm::initialize##agName##AnalysisGroup(PassRegistry &Registry) { \
|
|
llvm::call_once(Initialize##agName##AnalysisGroupFlag, \
|
|
initialize##agName##AnalysisGroupOnce, \
|
|
std::ref(Registry)); \
|
|
}
|
|
|
|
#define INITIALIZE_AG_PASS(passName, agName, arg, name, cfg, analysis, def) \
|
|
static void *initialize##passName##PassOnce(PassRegistry &Registry) { \
|
|
if (!def) \
|
|
initialize##agName##AnalysisGroup(Registry); \
|
|
PassInfo *PI = new PassInfo( \
|
|
name, arg, &passName::ID, \
|
|
PassInfo::NormalCtor_t(callDefaultCtor<passName>), cfg, analysis); \
|
|
Registry.registerPass(*PI, true); \
|
|
\
|
|
PassInfo *AI = new PassInfo(name, &agName::ID); \
|
|
Registry.registerAnalysisGroup(&agName::ID, &passName::ID, *AI, def, \
|
|
true); \
|
|
return AI; \
|
|
} \
|
|
static llvm::once_flag Initialize##passName##PassFlag; \
|
|
void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
|
|
llvm::call_once(Initialize##passName##PassFlag, \
|
|
initialize##passName##PassOnce, std::ref(Registry)); \
|
|
}
|
|
|
|
#define INITIALIZE_AG_PASS_BEGIN(passName, agName, arg, n, cfg, analysis, def) \
|
|
static void *initialize##passName##PassOnce(PassRegistry &Registry) { \
|
|
if (!def) \
|
|
initialize##agName##AnalysisGroup(Registry);
|
|
|
|
#define INITIALIZE_AG_PASS_END(passName, agName, arg, n, cfg, analysis, def) \
|
|
PassInfo *PI = new PassInfo( \
|
|
n, arg, &passName::ID, \
|
|
PassInfo::NormalCtor_t(callDefaultCtor<passName>), cfg, analysis); \
|
|
Registry.registerPass(*PI, true); \
|
|
\
|
|
PassInfo *AI = new PassInfo(n, &agName::ID); \
|
|
Registry.registerAnalysisGroup(&agName::ID, &passName::ID, *AI, def, true); \
|
|
return AI; \
|
|
} \
|
|
static llvm::once_flag Initialize##passName##PassFlag; \
|
|
void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
|
|
llvm::call_once(Initialize##passName##PassFlag, \
|
|
initialize##passName##PassOnce, std::ref(Registry)); \
|
|
}
|
|
|
|
//===---------------------------------------------------------------------------
|
|
/// PassRegistrationListener class - This class is meant to be derived from by
|
|
/// clients that are interested in which passes get registered and unregistered
|
|
/// at runtime (which can be because of the RegisterPass constructors being run
|
|
/// as the program starts up, or may be because a shared object just got
|
|
/// loaded).
|
|
struct PassRegistrationListener {
|
|
PassRegistrationListener() = default;
|
|
virtual ~PassRegistrationListener() = default;
|
|
|
|
/// Callback functions - These functions are invoked whenever a pass is loaded
|
|
/// or removed from the current executable.
|
|
virtual void passRegistered(const PassInfo *) {}
|
|
|
|
/// enumeratePasses - Iterate over the registered passes, calling the
|
|
/// passEnumerate callback on each PassInfo object.
|
|
void enumeratePasses();
|
|
|
|
/// passEnumerate - Callback function invoked when someone calls
|
|
/// enumeratePasses on this PassRegistrationListener object.
|
|
virtual void passEnumerate(const PassInfo *) {}
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_PASSSUPPORT_H
|