Allow ImmutablePass's to require other immutable passes and to be initialized

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5630 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-02-26 19:10:57 +00:00
parent d2c0b28c33
commit bf22c73c9c

View File

@ -530,7 +530,33 @@ public:
//
setAnalysisResolver(IP, this);
ImmutablePasses.push_back(IP);
// All Required analyses should be available to the pass as it initializes!
// Here we fill in the AnalysisImpls member of the pass so that it can
// successfully use the getAnalysis() method to retrieve the implementations
// it needs.
//
IP->AnalysisImpls.clear();
IP->AnalysisImpls.reserve(AU.getRequiredSet().size());
for (std::vector<const PassInfo *>::const_iterator
I = AU.getRequiredSet().begin(),
E = AU.getRequiredSet().end(); I != E; ++I) {
Pass *Impl = getAnalysisOrNullUp(*I);
if (Impl == 0) {
std::cerr << "Analysis '" << (*I)->getPassName()
<< "' used but not available!";
assert(0 && "Analysis used but not available!");
} else if (PassDebugging == Details) {
if ((*I)->getPassName() != std::string(Impl->getPassName()))
std::cerr << " Interface '" << (*I)->getPassName()
<< "' implemented by '" << Impl->getPassName() << "'\n";
}
IP->AnalysisImpls.push_back(std::make_pair(*I, Impl));
}
// Initialize the immutable pass...
IP->initializePass();
// Add this pass to the currently available set...
if (const PassInfo *PI = IP->getPassInfo()) {
CurrentAnalyses[PI] = IP;