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Change over to use new style pass mechanism, now passes only expose small

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creation functions in their public header file, unless they can help it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1816 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-02-26 21:46:54 +00:00
parent 3b2541424f
commit bd0ef77cde
32 changed files with 528 additions and 512 deletions
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36
lib/Transforms/IPO/GlobalDCE.cpp
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@@ -8,6 +8,7 @@
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Module.h"
#include "llvm/Method.h"
#include "llvm/Pass.h"
#include "Support/DepthFirstIterator.h"
#include <set>
@@ -45,18 +46,27 @@ static bool RemoveUnreachableMethods(Module *M, cfg::CallGraph &CallGraph) {
return true;
}
bool GlobalDCE::run(Module *M) {
return RemoveUnreachableMethods(M, getAnalysis<cfg::CallGraph>());
namespace {
struct GlobalDCE : public Pass {
// run - Do the GlobalDCE pass on the specified module, optionally updating
// the specified callgraph to reflect the changes.
//
bool run(Module *M) {
return RemoveUnreachableMethods(M, getAnalysis<cfg::CallGraph>());
}
// getAnalysisUsageInfo - This function works on the call graph of a module.
// It is capable of updating the call graph to reflect the new state of the
// module.
//
virtual void getAnalysisUsageInfo(Pass::AnalysisSet &Required,
Pass::AnalysisSet &Destroyed,
Pass::AnalysisSet &Provided) {
Required.push_back(cfg::CallGraph::ID);
// FIXME: This should update the callgraph, not destroy it!
Destroyed.push_back(cfg::CallGraph::ID);
}
};
}
// getAnalysisUsageInfo - This function works on the call graph of a module.
// It is capable of updating the call graph to reflect the new state of the
// module.
//
void GlobalDCE::getAnalysisUsageInfo(Pass::AnalysisSet &Required,
Pass::AnalysisSet &Destroyed,
Pass::AnalysisSet &Provided) {
Required.push_back(cfg::CallGraph::ID);
// FIXME: This should update the callgraph, not destroy it!
Destroyed.push_back(cfg::CallGraph::ID);
}
Pass *createGlobalDCEPass() { return new GlobalDCE(); }