//
//===----------------------------------------------------------------------===//
-#include "llvm/Assembly/Parser.h"
+#include "llvm/AsmParser/Parser.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
namespace {
-class TestAnalysisPass {
+class TestFunctionAnalysis {
public:
struct Result {
Result(int Count) : InstructionCount(Count) {}
/// \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, FunctionAnalysisManager *AM) {
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) {}
return PreservedAnalyses::none();
}
+ static StringRef name() { return "TestModulePass"; }
+
int &RunCount;
};
struct TestPreservingModulePass {
- PreservedAnalyses run(Module *M) {
- return PreservedAnalyses::all();
- }
+ PreservedAnalyses run(Module *M) { return PreservedAnalyses::all(); }
+
+ static StringRef name() { return "TestPreservingModulePass"; }
};
struct TestMinPreservingModulePass {
- PreservedAnalyses run(Module *M) {
+ PreservedAnalyses run(Module *M, ModuleAnalysisManager *AM) {
PreservedAnalyses PA;
+
+ // Force running an analysis.
+ (void)AM->getResult<TestModuleAnalysis>(M);
+
PA.preserve<FunctionAnalysisManagerModuleProxy>();
return PA;
}
+
+ static StringRef name() { return "TestMinPreservingModulePass"; }
};
struct TestFunctionPass {
- TestFunctionPass(int &RunCount, int &AnalyzedInstrCount)
- : RunCount(RunCount), AnalyzedInstrCount(AnalyzedInstrCount) {}
+ 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 (TestModuleAnalysis::Result *TMA =
+ MAM.getCachedResult<TestModuleAnalysis>(F->getParent()))
+ AnalyzedFunctionCount += TMA->FunctionCount;
+
+ if (OnlyUseCachedResults) {
+ // Hack to force the use of the cached interface.
+ if (TestFunctionAnalysis::Result *AR =
+ AM->getCachedResult<TestFunctionAnalysis>(F))
+ AnalyzedInstrCount += AR->InstructionCount;
+ } else {
+ // Typical path just runs the analysis as needed.
+ TestFunctionAnalysis::Result &AR = AM->getResult<TestFunctionAnalysis>(F);
+ AnalyzedInstrCount += AR.InstructionCount;
+ }
return PreservedAnalyses::all();
}
+ static StringRef name() { return "TestFunctionPass"; }
+
int &RunCount;
int &AnalyzedInstrCount;
+ int &AnalyzedFunctionCount;
+ bool OnlyUseCachedResults;
};
// A test function pass that invalidates all function analyses for a function
: PreservedAnalyses::all();
}
+ static StringRef name() { return "TestInvalidationFunctionPass"; }
+
StringRef Name;
};
class PassManagerTest : public ::testing::Test {
protected:
- OwningPtr<Module> M;
+ std::unique_ptr<Module> M;
public:
PassManagerTest()
TEST_F(PassManagerTest, Basic) {
FunctionAnalysisManager FAM;
- int AnalysisRuns = 0;
- FAM.registerPass(TestAnalysisPass(AnalysisRuns));
+ int FunctionAnalysisRuns = 0;
+ FAM.registerPass(TestFunctionAnalysis(FunctionAnalysisRuns));
ModuleAnalysisManager MAM;
+ int ModuleAnalysisRuns = 0;
+ MAM.registerPass(TestModuleAnalysis(ModuleAnalysisRuns));
MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
+ FAM.registerPass(ModuleAnalysisManagerFunctionProxy(MAM));
ModulePassManager MPM;
// Count the runs over a Function.
- FunctionPassManager FPM1;
int FunctionPassRunCount1 = 0;
int AnalyzedInstrCount1 = 0;
- FPM1.addPass(TestFunctionPass(FunctionPassRunCount1, AnalyzedInstrCount1));
- MPM.addPass(createModuleToFunctionPassAdaptor(FPM1));
+ int AnalyzedFunctionCount1 = 0;
+ {
+ FunctionPassManager FPM;
+ FPM.addPass(TestFunctionPass(FunctionPassRunCount1, AnalyzedInstrCount1,
+ AnalyzedFunctionCount1));
+ MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
+ }
// 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;
int FunctionPassRunCount2 = 0;
int AnalyzedInstrCount2 = 0;
- FPM2.addPass(TestFunctionPass(FunctionPassRunCount2, AnalyzedInstrCount2));
- MPM.addPass(createModuleToFunctionPassAdaptor(FPM2));
+ int AnalyzedFunctionCount2 = 0;
+ {
+ FunctionPassManager FPM;
+ FPM.addPass(TestFunctionPass(FunctionPassRunCount2, AnalyzedInstrCount2,
+ AnalyzedFunctionCount2));
+ MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
+ }
// 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;
- FPM3.addPass(TestFunctionPass(FunctionPassRunCount3, AnalyzedInstrCount3));
- FPM3.addPass(TestInvalidationFunctionPass("f"));
- MPM.addPass(createModuleToFunctionPassAdaptor(FPM3));
+ int AnalyzedFunctionCount3 = 0;
+ {
+ FunctionPassManager FPM;
+ FPM.addPass(TestFunctionPass(FunctionPassRunCount3, AnalyzedInstrCount3,
+ AnalyzedFunctionCount3));
+ FPM.addPass(TestInvalidationFunctionPass("f"));
+ MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
+ }
// A fourth function pass manager but with a minimal intervening passes.
MPM.addPass(TestMinPreservingModulePass());
- FunctionPassManager FPM4;
int FunctionPassRunCount4 = 0;
int AnalyzedInstrCount4 = 0;
- FPM4.addPass(TestFunctionPass(FunctionPassRunCount4, AnalyzedInstrCount4));
- MPM.addPass(createModuleToFunctionPassAdaptor(FPM4));
+ int AnalyzedFunctionCount4 = 0;
+ {
+ FunctionPassManager FPM;
+ FPM.addPass(TestFunctionPass(FunctionPassRunCount4, AnalyzedInstrCount4,
+ AnalyzedFunctionCount4));
+ MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
+ }
+
+ // A fifth function pass manager but which uses only cached results.
+ int FunctionPassRunCount5 = 0;
+ int AnalyzedInstrCount5 = 0;
+ int AnalyzedFunctionCount5 = 0;
+ {
+ FunctionPassManager FPM;
+ FPM.addPass(TestInvalidationFunctionPass("f"));
+ FPM.addPass(TestFunctionPass(FunctionPassRunCount5, AnalyzedInstrCount5,
+ AnalyzedFunctionCount5,
+ /*OnlyUseCachedResults=*/true));
+ MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
+ }
MPM.run(M.get(), &MAM);
// 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);
+ 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, AnalysisRuns);
+ EXPECT_EQ(7, FunctionAnalysisRuns);
+
+ EXPECT_EQ(1, ModuleAnalysisRuns);
}
}
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