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Add a mechanism for optimisation plugins to register passes that all front ends can use without needing to be aware of the plugin (or the plugin be aware of the front end).

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Before 3.0, I'd like to add a mechanism for automatically loading a set of plugins from a config file.  API suggestions welcome...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137717 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Chisnall
2011-08-16 13:58:41 +00:00
parent 48c4c6807b
commit 7a817eae6c
2 changed files with 29 additions and 1 deletions
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15
lib/Transforms/IPO/PassManagerBuilder.cpp
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@ -25,6 +25,8 @@
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/ManagedStatic.h"
using namespace llvm;
@ -43,12 +45,25 @@ PassManagerBuilder::~PassManagerBuilder() {
delete Inliner;
}
/// Set of global extensions, automatically added as part of the standard set.
static ManagedStatic<SmallVector<std::pair<PassManagerBuilder::ExtensionPointTy,
PassManagerBuilder::ExtensionFn>, 8> > GlobalExtensions;
void PassManagerBuilder::addGlobalExtension(
PassManagerBuilder::ExtensionPointTy Ty,
PassManagerBuilder::ExtensionFn Fn) {
GlobalExtensions->push_back(std::make_pair(Ty, Fn));
}
void PassManagerBuilder::addExtension(ExtensionPointTy Ty, ExtensionFn Fn) {
Extensions.push_back(std::make_pair(Ty, Fn));
}
void PassManagerBuilder::addExtensionsToPM(ExtensionPointTy ETy,
PassManagerBase &PM) const {
for (unsigned i = 0, e = GlobalExtensions->size(); i != e; ++i)
if ((*GlobalExtensions)[i].first == ETy)
(*GlobalExtensions)[i].second(*this, PM);
for (unsigned i = 0, e = Extensions.size(); i != e; ++i)
if (Extensions[i].first == ETy)
Extensions[i].second(*this, PM);