1//===- PassManager.cpp - Infrastructure for managing & running IR passes --===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/ADT/STLExtras.h"
11#include "llvm/IR/LLVMContext.h"
12#include "llvm/IR/PassManager.h"
13
14using namespace llvm;
15
16char FunctionAnalysisManagerModuleProxy::PassID;
17
18FunctionAnalysisManagerModuleProxy::Result
19FunctionAnalysisManagerModuleProxy::run(Module &M) {
20  assert(FAM->empty() && "Function analyses ran prior to the module proxy!");
21  return Result(*FAM);
22}
23
24FunctionAnalysisManagerModuleProxy::Result::~Result() {
25  // Clear out the analysis manager if we're being destroyed -- it means we
26  // didn't even see an invalidate call when we got invalidated.
27  FAM->clear();
28}
29
30bool FunctionAnalysisManagerModuleProxy::Result::invalidate(
31    Module &M, const PreservedAnalyses &PA) {
32  // If this proxy isn't marked as preserved, then we can't even invalidate
33  // individual function analyses, there may be an invalid set of Function
34  // objects in the cache making it impossible to incrementally preserve them.
35  // Just clear the entire manager.
36  if (!PA.preserved(ID()))
37    FAM->clear();
38
39  // Return false to indicate that this result is still a valid proxy.
40  return false;
41}
42
43char ModuleAnalysisManagerFunctionProxy::PassID;
44