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Add support for pass registration

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3018 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-07-23 18:08:00 +00:00
parent f082b80828
commit 54bbdb4677
1 changed files with 93 additions and 0 deletions
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93
lib/VMCore/Pass.cpp
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@ -11,6 +11,7 @@
#include "llvm/Module.h"
#include "Support/STLExtras.h"
#include "Support/CommandLine.h"
#include "Support/TypeInfo.h"
#include <typeinfo>
#include <iostream>
#include <sys/time.h>
@ -284,3 +285,95 @@ void BasicBlockPass::addToPassManager(PassManagerT<BasicBlock> *PM,
PM->addPass(this, AU);
}
//===----------------------------------------------------------------------===//
// Pass Registration mechanism
//
static std::map<TypeInfo, PassInfo*> *PassInfoMap = 0;
static std::vector<PassRegistrationListener*> *Listeners = 0;
// getPassInfo - Return the PassInfo data structure that corresponds to this
// pass...
const PassInfo *Pass::getPassInfo() const {
assert(PassInfoMap && "PassInfoMap not constructed yet??");
std::map<TypeInfo, PassInfo*>::iterator I =
PassInfoMap->find(typeid(*this));
assert(I != PassInfoMap->end() && "Pass has not been registered!");
return I->second;
}
void RegisterPassBase::registerPass(PassInfo *PI) {
if (PassInfoMap == 0)
PassInfoMap = new std::map<TypeInfo, PassInfo*>();
assert(PassInfoMap->find(PI->getTypeInfo()) == PassInfoMap->end() &&
"Pass already registered!");
PIObj = PI;
PassInfoMap->insert(std::make_pair(TypeInfo(PI->getTypeInfo()), PI));
// Notify any listeners...
if (Listeners)
for (std::vector<PassRegistrationListener*>::iterator
I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
(*I)->passRegistered(PI);
}
RegisterPassBase::~RegisterPassBase() {
assert(PassInfoMap && "Pass registered but not in map!");
std::map<TypeInfo, PassInfo*>::iterator I =
PassInfoMap->find(PIObj->getTypeInfo());
assert(I != PassInfoMap->end() && "Pass registered but not in map!");
// Remove pass from the map...
PassInfoMap->erase(I);
if (PassInfoMap->empty()) {
delete PassInfoMap;
PassInfoMap = 0;
}
// Notify any listeners...
if (Listeners)
for (std::vector<PassRegistrationListener*>::iterator
I = Listeners->begin(), E = Listeners->end(); I != E; ++I)
(*I)->passUnregistered(PIObj);
// Delete the PassInfo object itself...
delete PIObj;
}
//===----------------------------------------------------------------------===//
// PassRegistrationListener implementation
//
// PassRegistrationListener ctor - Add the current object to the list of
// PassRegistrationListeners...
PassRegistrationListener::PassRegistrationListener() {
if (!Listeners) Listeners = new std::vector<PassRegistrationListener*>();
Listeners->push_back(this);
}
// dtor - Remove object from list of listeners...
PassRegistrationListener::~PassRegistrationListener() {
std::vector<PassRegistrationListener*>::iterator I =
std::find(Listeners->begin(), Listeners->end(), this);
assert(Listeners && I != Listeners->end() &&
"PassRegistrationListener not registered!");
Listeners->erase(I);
if (Listeners->empty()) {
delete Listeners;
Listeners = 0;
}
}
// enumeratePasses - Iterate over the registered passes, calling the
// passEnumerate callback on each PassInfo object.
//
void PassRegistrationListener::enumeratePasses() {
if (PassInfoMap)
for (std::map<TypeInfo, PassInfo*>::iterator I = PassInfoMap->begin(),
E = PassInfoMap->end(); I != E; ++I)
passEnumerate(I->second);
}