namespace {
-class TestAnalysisPass {
+class TestFunctionAnalysis {
public:
- typedef Function IRUnitT;
-
struct Result {
Result(int Count) : InstructionCount(Count) {}
- bool invalidate(Function *) { return true; }
int InstructionCount;
};
/// \brief Returns an opaque, unique ID for this pass type.
static void *ID() { return (void *)&PassID; }
- TestAnalysisPass(int &Runs) : Runs(Runs) {}
+ TestFunctionAnalysis(int &Runs) : Runs(Runs) {}
/// \brief Run the analysis pass over the function and return a result.
- Result run(Function *F) {
+ Result run(Function *F, FunctionAnalysisManager *AM) {
++Runs;
int Count = 0;
for (Function::iterator BBI = F->begin(), BBE = F->end(); BBI != BBE; ++BBI)
int &Runs;
};
-char TestAnalysisPass::PassID;
+char TestFunctionAnalysis::PassID;
+
+class TestModuleAnalysis {
+public:
+ struct Result {
+ Result(int Count) : FunctionCount(Count) {}
+ int FunctionCount;
+ };
+
+ static void *ID() { return (void * )&PassID; }
+
+ TestModuleAnalysis(int &Runs) : Runs(Runs) {}
+
+ Result run(Module *M, ModuleAnalysisManager *AM) {
+ ++Runs;
+ int Count = 0;
+ for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
+ ++Count;
+ return Result(Count);
+ }
+
+private:
+ static char PassID;
+
+ int &Runs;
+};
+
+char TestModuleAnalysis::PassID;
struct TestModulePass {
TestModulePass(int &RunCount) : RunCount(RunCount) {}
int &RunCount;
};
-struct TestFunctionPass {
- TestFunctionPass(FunctionAnalysisManager &AM, int &RunCount,
- int &AnalyzedInstrCount)
- : AM(AM), RunCount(RunCount), AnalyzedInstrCount(AnalyzedInstrCount) {}
+struct TestPreservingModulePass {
+ PreservedAnalyses run(Module *M) {
+ return PreservedAnalyses::all();
+ }
+};
- PreservedAnalyses run(Function *F) {
+struct TestMinPreservingModulePass {
+ PreservedAnalyses run(Module *M, ModuleAnalysisManager *AM) {
+ PreservedAnalyses PA;
+
+ // Force running an analysis.
+ (void)AM->getResult<TestModuleAnalysis>(M);
+
+ PA.preserve<FunctionAnalysisManagerModuleProxy>();
+ return PA;
+ }
+};
+
+struct TestFunctionPass {
+ TestFunctionPass(int &RunCount, int &AnalyzedInstrCount,
+ int &AnalyzedFunctionCount,
+ bool OnlyUseCachedResults = false)
+ : RunCount(RunCount), AnalyzedInstrCount(AnalyzedInstrCount),
+ AnalyzedFunctionCount(AnalyzedFunctionCount),
+ OnlyUseCachedResults(OnlyUseCachedResults) {}
+
+ PreservedAnalyses run(Function *F, FunctionAnalysisManager *AM) {
++RunCount;
- const TestAnalysisPass::Result &AR = AM.getResult<TestAnalysisPass>(F);
- AnalyzedInstrCount += AR.InstructionCount;
+ const ModuleAnalysisManager &MAM =
+ AM->getResult<ModuleAnalysisManagerFunctionProxy>(F).getManager();
+ if (const TestModuleAnalysis::Result *TMA =
+ MAM.getCachedResult<TestModuleAnalysis>(F->getParent()))
+ AnalyzedFunctionCount += TMA->FunctionCount;
+
+ if (OnlyUseCachedResults) {
+ // Hack to force the use of the cached interface.
+ if (const TestFunctionAnalysis::Result *AR =
+ AM->getCachedResult<TestFunctionAnalysis>(F))
+ AnalyzedInstrCount += AR->InstructionCount;
+ } else {
+ // Typical path just runs the analysis as needed.
+ const TestFunctionAnalysis::Result &AR = AM->getResult<TestFunctionAnalysis>(F);
+ AnalyzedInstrCount += AR.InstructionCount;
+ }
return PreservedAnalyses::all();
}
- FunctionAnalysisManager &AM;
int &RunCount;
int &AnalyzedInstrCount;
+ int &AnalyzedFunctionCount;
+ bool OnlyUseCachedResults;
+};
+
+// A test function pass that invalidates all function analyses for a function
+// with a specific name.
+struct TestInvalidationFunctionPass {
+ TestInvalidationFunctionPass(StringRef FunctionName) : Name(FunctionName) {}
+
+ PreservedAnalyses run(Function *F) {
+ return F->getName() == Name ? PreservedAnalyses::none()
+ : PreservedAnalyses::all();
+ }
+
+ StringRef Name;
};
Module *parseIR(const char *IR) {
TEST_F(PassManagerTest, Basic) {
FunctionAnalysisManager FAM;
- int AnalysisRuns = 0;
- FAM.registerPass(TestAnalysisPass(AnalysisRuns));
+ int FunctionAnalysisRuns = 0;
+ FAM.registerPass(TestFunctionAnalysis(FunctionAnalysisRuns));
ModuleAnalysisManager MAM;
- MAM.registerPass(FunctionAnalysisModuleProxy(FAM));
+ int ModuleAnalysisRuns = 0;
+ MAM.registerPass(TestModuleAnalysis(ModuleAnalysisRuns));
+ MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
+ FAM.registerPass(ModuleAnalysisManagerFunctionProxy(MAM));
- ModulePassManager MPM(&MAM);
+ ModulePassManager MPM;
// Count the runs over a Function.
- FunctionPassManager FPM1(&FAM);
+ FunctionPassManager FPM1;
int FunctionPassRunCount1 = 0;
int AnalyzedInstrCount1 = 0;
- FPM1.addPass(TestFunctionPass(FAM, FunctionPassRunCount1, AnalyzedInstrCount1));
- MPM.addPass(createModuleToFunctionPassAdaptor(FPM1, &MAM));
+ int AnalyzedFunctionCount1 = 0;
+ FPM1.addPass(TestFunctionPass(FunctionPassRunCount1, AnalyzedInstrCount1,
+ AnalyzedFunctionCount1));
+ MPM.addPass(createModuleToFunctionPassAdaptor(FPM1));
// Count the runs over a module.
int ModulePassRunCount = 0;
MPM.addPass(TestModulePass(ModulePassRunCount));
// Count the runs over a Function in a separate manager.
- FunctionPassManager FPM2(&FAM);
+ FunctionPassManager FPM2;
int FunctionPassRunCount2 = 0;
int AnalyzedInstrCount2 = 0;
- FPM2.addPass(TestFunctionPass(FAM, FunctionPassRunCount2, AnalyzedInstrCount2));
- MPM.addPass(createModuleToFunctionPassAdaptor(FPM2, &MAM));
-
- MPM.run(M.get());
+ int AnalyzedFunctionCount2 = 0;
+ FPM2.addPass(TestFunctionPass(FunctionPassRunCount2, AnalyzedInstrCount2,
+ AnalyzedFunctionCount2));
+ MPM.addPass(createModuleToFunctionPassAdaptor(FPM2));
+
+ // A third function pass manager but with only preserving intervening passes
+ // and with a function pass that invalidates exactly one analysis.
+ MPM.addPass(TestPreservingModulePass());
+ FunctionPassManager FPM3;
+ int FunctionPassRunCount3 = 0;
+ int AnalyzedInstrCount3 = 0;
+ int AnalyzedFunctionCount3 = 0;
+ FPM3.addPass(TestFunctionPass(FunctionPassRunCount3, AnalyzedInstrCount3,
+ AnalyzedFunctionCount3));
+ FPM3.addPass(TestInvalidationFunctionPass("f"));
+ MPM.addPass(createModuleToFunctionPassAdaptor(FPM3));
+
+ // A fourth function pass manager but with a minimal intervening passes.
+ MPM.addPass(TestMinPreservingModulePass());
+ FunctionPassManager FPM4;
+ int FunctionPassRunCount4 = 0;
+ int AnalyzedInstrCount4 = 0;
+ int AnalyzedFunctionCount4 = 0;
+ FPM4.addPass(TestFunctionPass(FunctionPassRunCount4, AnalyzedInstrCount4,
+ AnalyzedFunctionCount4));
+ MPM.addPass(createModuleToFunctionPassAdaptor(FPM4));
+
+ // A fifth function pass manager but which uses only cached results.
+ FunctionPassManager FPM5;
+ int FunctionPassRunCount5 = 0;
+ int AnalyzedInstrCount5 = 0;
+ int AnalyzedFunctionCount5 = 0;
+ FPM5.addPass(TestInvalidationFunctionPass("f"));
+ FPM5.addPass(TestFunctionPass(FunctionPassRunCount5, AnalyzedInstrCount5,
+ AnalyzedFunctionCount5,
+ /*OnlyUseCachedResults=*/true));
+ MPM.addPass(createModuleToFunctionPassAdaptor(FPM5));
+
+ MPM.run(M.get(), &MAM);
// Validate module pass counters.
EXPECT_EQ(1, ModulePassRunCount);
- // Validate both function pass counter sets.
+ // Validate all function pass counter sets are the same.
EXPECT_EQ(3, FunctionPassRunCount1);
EXPECT_EQ(5, AnalyzedInstrCount1);
+ EXPECT_EQ(0, AnalyzedFunctionCount1);
EXPECT_EQ(3, FunctionPassRunCount2);
EXPECT_EQ(5, AnalyzedInstrCount2);
-
- // Validate the analysis counters.
- EXPECT_EQ(6, AnalysisRuns);
+ EXPECT_EQ(0, AnalyzedFunctionCount2);
+ EXPECT_EQ(3, FunctionPassRunCount3);
+ EXPECT_EQ(5, AnalyzedInstrCount3);
+ EXPECT_EQ(0, AnalyzedFunctionCount3);
+ EXPECT_EQ(3, FunctionPassRunCount4);
+ EXPECT_EQ(5, AnalyzedInstrCount4);
+ EXPECT_EQ(0, AnalyzedFunctionCount4);
+ EXPECT_EQ(3, FunctionPassRunCount5);
+ EXPECT_EQ(2, AnalyzedInstrCount5); // Only 'g' and 'h' were cached.
+ EXPECT_EQ(0, AnalyzedFunctionCount5);
+
+ // Validate the analysis counters:
+ // first run over 3 functions, then module pass invalidates
+ // second run over 3 functions, nothing invalidates
+ // third run over 0 functions, but 1 function invalidated
+ // fourth run over 1 function
+ EXPECT_EQ(7, FunctionAnalysisRuns);
+
+ EXPECT_EQ(1, ModuleAnalysisRuns);
}
}
projects / oota-llvm.git / blobdiff