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[PM] Make the function pass manager more regular.

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The FunctionPassManager is now itself a function pass. When run over
a function, it runs all N of its passes over that function. This is the
1:N mapping in the pass dimension only. This allows it to be used in
either a ModulePassManager or potentially some other manager that
works on IR units which are supersets of Functions.

This commit also adds the obvious adaptor to map from a module pass to
a function pass, running the function pass across every function in the
module.

The test has been updated to use this new pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195192 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2013-11-20 04:39:16 +00:00
parent d23c759c0f
commit d14894059f
3 changed files with 39 additions and 10 deletions
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15
lib/IR/PassManager.cpp
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@@ -53,15 +53,14 @@ void ModuleAnalysisManager::invalidateImpl(void *PassID, Module *M) {
ModuleAnalysisResults.erase(PassID);
}
bool FunctionPassManager::run(Module *M) {
bool FunctionPassManager::run(Function *F) {
bool Changed = false;
for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
for (unsigned Idx = 0, Size = Passes.size(); Idx != Size; ++Idx)
if (Passes[Idx]->run(I)) {
Changed = true;
if (AM)
AM->invalidateAll(I);
}
for (unsigned Idx = 0, Size = Passes.size(); Idx != Size; ++Idx)
if (Passes[Idx]->run(F)) {
Changed = true;
if (AM)
AM->invalidateAll(F);
}
return Changed;
}