//===- llvm/PassSupport.h - Pass Support code -------------------*- 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 defines stuff that is used to define and "use" Passes. This file
// is automatically #included by Pass.h, so:
//
#ifndef LLVM_PASS_SUPPORT_H
#define LLVM_PASS_SUPPORT_H
+#include "llvm/System/IncludeFile.h"
// No need to include Pass.h, we are being included by it!
+namespace llvm {
+
class TargetMachine;
//===---------------------------------------------------------------------------
/// AnalysisGroup flag with others.
///
enum {
- Analysis = 1, Optimization = 2, LLC = 4, AnalysisGroup = 8
+ Analysis = 1, Optimization = 2, AnalysisGroup = 4
};
/// PassInfo ctor - Do not call this directly, this should only be invoked
/// through RegisterPass.
- PassInfo(const char *name, const char *arg, const std::type_info &ti,
- unsigned pt, Pass *(*normal)() = 0,
+ PassInfo(const char *name, const char *arg, const std::type_info &ti,
+ unsigned char pt, Pass *(*normal)() = 0,
Pass *(*targetctor)(TargetMachine &) = 0)
: PassName(name), PassArgument(arg), TypeInfo(ti), PassType(pt),
NormalCtor(normal), TargetCtor(targetctor) {
/// getNormalCtor - Return a pointer to a function, that when called, creates
/// an instance of the pass and returns it. This pointer may be null if there
/// is no default constructor for the pass.
- ///
+ ///
Pass *(*getNormalCtor() const)() {
return NormalCtor;
}
/// 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
///
/// Pass *createMyPass(foo &opt) { return new MyPass(opt); }
/// static RegisterPass<PassClassName> tmp("passopt", "My Name", createMyPass);
-///
+///
struct RegisterPassBase {
/// getPassInfo - Get the pass info for the registered class...
///
- const PassInfo *getPassInfo() const { return PIObj; }
+ const PassInfo *getPassInfo() const { return &PIObj; }
- RegisterPassBase() : PIObj(0) {}
- ~RegisterPassBase() { // Intentionally non-virtual...
- if (PIObj) unregisterPass(PIObj);
+ RegisterPassBase(const char *Name, const char *Arg, const std::type_info &TI,
+ unsigned char PT, Pass *(*Normal)() = 0,
+ Pass *(*TargetCtor)(TargetMachine &) = 0)
+ : PIObj(Name, Arg, TI, PT, Normal, TargetCtor) {
+ registerPass();
+ }
+ RegisterPassBase(const std::type_info &TI, unsigned char PT)
+ : PIObj("", "", TI, PT, 0, 0) {
+ // This ctor may only be used for analysis groups: it does not auto-register
+ // the pass.
+ assert(PT == PassInfo::AnalysisGroup && "Not an AnalysisGroup!");
+ }
+
+ ~RegisterPassBase() { // Intentionally non-virtual.
+ // Analysis groups are registered/unregistered by their dtor.
+ if (PIObj.getPassType() != PassInfo::AnalysisGroup)
+ unregisterPass();
}
protected:
- PassInfo *PIObj; // The PassInfo object for this pass
- void registerPass(PassInfo *);
- void unregisterPass(PassInfo *);
+ PassInfo PIObj; // The PassInfo object for this pass
+ void registerPass();
+ void unregisterPass();
- /// setPreservesCFG - Notice that this pass only depends on the CFG, so
+ /// setOnlyUsesCFG - Notice that this pass only depends on the CFG, so
/// transformations that do not modify the CFG do not invalidate this pass.
///
- void setPreservesCFG();
+ void setOnlyUsesCFG();
};
template<typename PassName>
template<typename PassName>
struct RegisterPass : public RegisterPassBase {
-
+
// Register Pass using default constructor...
- RegisterPass(const char *PassArg, const char *Name, unsigned PassTy = 0) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName), PassTy,
- callDefaultCtor<PassName>));
- }
+ RegisterPass(const char *PassArg, const char *Name, unsigned char PassTy = 0)
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassTy,
+ callDefaultCtor<PassName>) {}
// Register Pass using default constructor explicitly...
- RegisterPass(const char *PassArg, const char *Name, unsigned PassTy,
- Pass *(*ctor)()) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName), PassTy, ctor));
- }
+ RegisterPass(const char *PassArg, const char *Name, unsigned char PassTy,
+ Pass *(*ctor)())
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassTy, ctor) {}
// Register Pass using TargetMachine constructor...
- RegisterPass(const char *PassArg, const char *Name, unsigned PassTy,
- Pass *(*targetctor)(TargetMachine &)) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName), PassTy,
- 0, targetctor));
- }
+ RegisterPass(const char *PassArg, const char *Name, unsigned char PassTy,
+ Pass *(*targetctor)(TargetMachine &))
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassTy,
+ 0, targetctor) {}
// Generic constructor version that has an unknown ctor type...
template<typename CtorType>
- RegisterPass(const char *PassArg, const char *Name, unsigned PassTy,
- CtorType *Fn) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName), PassTy, 0));
- }
+ RegisterPass(const char *PassArg, const char *Name, unsigned char PassTy,
+ CtorType *Fn)
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassTy, 0) {}
};
/// RegisterOpt - Register something that is to show up in Opt, this is just a
///
template<typename PassName>
struct RegisterOpt : public RegisterPassBase {
- RegisterOpt(const char *PassArg, const char *Name) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::Optimization,
- callDefaultCtor<PassName>));
+ RegisterOpt(const char *PassArg, const char *Name, bool CFGOnly = false)
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassInfo::Optimization,
+ callDefaultCtor<PassName>) {
+ if (CFGOnly) setOnlyUsesCFG();
}
/// Register Pass using default constructor explicitly...
///
- RegisterOpt(const char *PassArg, const char *Name, Pass *(*ctor)()) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::Optimization, ctor));
+ RegisterOpt(const char *PassArg, const char *Name, Pass *(*ctor)(),
+ bool CFGOnly = false)
+ : RegisterPassBase(Name, PassArg, typeid(PassName),
+ PassInfo::Optimization, ctor) {
+ if (CFGOnly) setOnlyUsesCFG();
+ }
+
+ /// Register FunctionPass using default constructor explicitly...
+ ///
+ RegisterOpt(const char *PassArg, const char *Name, FunctionPass *(*ctor)(),
+ bool CFGOnly = false)
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassInfo::Optimization,
+ static_cast<Pass*(*)()>(ctor)) {
+ if (CFGOnly) setOnlyUsesCFG();
}
/// Register Pass using TargetMachine constructor...
///
RegisterOpt(const char *PassArg, const char *Name,
- Pass *(*targetctor)(TargetMachine &)) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::Optimization, 0, targetctor));
+ Pass *(*targetctor)(TargetMachine &), bool CFGOnly = false)
+ : RegisterPassBase(Name, PassArg, typeid(PassName),
+ PassInfo::Optimization, 0, targetctor) {
+ if (CFGOnly) setOnlyUsesCFG();
+ }
+
+ /// Register FunctionPass using TargetMachine constructor...
+ ///
+ RegisterOpt(const char *PassArg, const char *Name,
+ FunctionPass *(*targetctor)(TargetMachine &),
+ bool CFGOnly = false)
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassInfo::Optimization, 0,
+ static_cast<Pass*(*)(TargetMachine&)>(targetctor)) {
+ if (CFGOnly) setOnlyUsesCFG();
}
};
template<typename PassName>
struct RegisterAnalysis : public RegisterPassBase {
RegisterAnalysis(const char *PassArg, const char *Name,
- bool CFGOnly = false) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::Analysis,
- callDefaultCtor<PassName>));
- if (CFGOnly)
- setPreservesCFG();
- }
-};
-
-/// RegisterLLC - Register something that is to show up in LLC, this is just a
-/// shortcut for specifying RegisterPass...
-///
-template<typename PassName>
-struct RegisterLLC : public RegisterPassBase {
- RegisterLLC(const char *PassArg, const char *Name) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::LLC,
- callDefaultCtor<PassName>));
- }
-
- /// Register Pass using default constructor explicitly...
- ///
- RegisterLLC(const char *PassArg, const char *Name, Pass *(*ctor)()) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::LLC, ctor));
- }
-
- /// Register Pass using TargetMachine constructor...
- ///
- RegisterLLC(const char *PassArg, const char *Name,
- Pass *(*datactor)(TargetMachine &)) {
- registerPass(new PassInfo(Name, PassArg, typeid(PassName),
- PassInfo::LLC));
+ bool CFGOnly = false)
+ : RegisterPassBase(Name, PassArg, typeid(PassName), PassInfo::Analysis,
+ callDefaultCtor<PassName>) {
+ if (CFGOnly) setOnlyUsesCFG();
}
};
};
-//===---------------------------------------------------------------------------
-/// IncludeFile class - This class is used as a hack to make sure that the
-/// implementation of a header file is included into a tool that uses the
-/// header. This is solely to overcome problems linking .a files and not
-/// getting the implementation of passes we need.
-///
-struct IncludeFile {
- IncludeFile(void *);
-};
+} // End llvm namespace
+
#endif
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