1 //===- llvm/unittest/VMCore/PassManager.cpp - Constants unit tests ------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/Module.h"
11 #include "llvm/PassManager.h"
12 #include "llvm/Analysis/LoopInfo.h"
13 #include "llvm/Pass.h"
14 #include "llvm/Analysis/LoopPass.h"
15 #include "llvm/CallGraphSCCPass.h"
16 #include "llvm/Target/TargetData.h"
17 #include "llvm/Support/raw_ostream.h"
18 #include "llvm/DerivedTypes.h"
19 #include "llvm/Constants.h"
20 #include "llvm/GlobalVariable.h"
21 #include "llvm/Function.h"
22 #include "llvm/CallingConv.h"
23 #include "llvm/BasicBlock.h"
24 #include "llvm/Instructions.h"
25 #include "llvm/InlineAsm.h"
26 #include "llvm/Support/MathExtras.h"
27 #include "llvm/Support/raw_ostream.h"
28 #include "llvm/PassManager.h"
29 #include "llvm/ADT/SmallVector.h"
30 #include "llvm/Analysis/Verifier.h"
31 #include "llvm/Assembly/PrintModulePass.h"
32 #include "gtest/gtest.h"
37 // NM = no modifications
38 struct ModuleNDNM: public ModulePass {
42 ModuleNDNM() : ModulePass(&ID) {}
43 virtual bool runOnModule(Module &M) {
47 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
51 char ModuleNDNM::ID=0;
52 char ModuleNDNM::run=0;
54 struct ModuleNDM : public ModulePass {
58 ModuleNDM() : ModulePass(&ID) {}
59 virtual bool runOnModule(Module &M) {
65 char ModuleNDM::run=0;
66 RegisterPass<ModuleNDM> X("mndm","mndm",false,false);
68 struct ModuleNDM2 : public ModulePass {
72 ModuleNDM2() : ModulePass(&ID) {}
73 virtual bool runOnModule(Module &M) {
78 char ModuleNDM2::ID=0;
79 char ModuleNDM2::run=0;
81 struct ModuleDNM : public ModulePass {
85 ModuleDNM() : ModulePass(&ID) {}
86 virtual bool runOnModule(Module &M) {
87 EXPECT_TRUE(getAnalysisIfAvailable<TargetData>());
91 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
92 AU.addRequired<ModuleNDM>();
97 char ModuleDNM::run=0;
100 struct PassTestBase : public P {
103 static bool initialized;
104 static bool finalized;
107 EXPECT_EQ(true, initialized);
108 EXPECT_EQ(false, finalized);
109 EXPECT_EQ(0, allocated);
115 static void finishedOK(int run) {
117 EXPECT_EQ(true, initialized);
118 EXPECT_EQ(true, finalized);
119 EXPECT_EQ(run, runc);
121 PassTestBase() : P(&ID), allocated(0) {
127 virtual void releaseMemory() {
129 EXPECT_GT(allocated, 0);
133 template<typename P> char PassTestBase<P>::ID;
134 template<typename P> int PassTestBase<P>::runc;
135 template<typename P> bool PassTestBase<P>::initialized;
136 template<typename P> bool PassTestBase<P>::finalized;
138 template<typename T, typename P>
139 struct PassTest : public PassTestBase<P> {
141 virtual bool doInitialization(T &t) {
142 EXPECT_EQ(false, PassTestBase<P>::initialized);
143 PassTestBase<P>::initialized = true;
146 virtual bool doFinalization(T &t) {
147 EXPECT_EQ(false, PassTestBase<P>::finalized);
148 PassTestBase<P>::finalized = true;
149 EXPECT_EQ(0, PassTestBase<P>::allocated);
154 struct CGPass : public PassTest<CallGraph, CallGraphSCCPass> {
156 virtual bool runOnSCC(const std::vector<CallGraphNode*> &SCMM) {
157 EXPECT_TRUE(getAnalysisIfAvailable<TargetData>());
162 RegisterPass<CGPass> X1("cgp","cgp");
164 struct FPass : public PassTest<Module, FunctionPass> {
166 virtual bool runOnFunction(Function &F) {
168 // EXPECT_TRUE(getAnalysisIfAvailable<TargetData>());
173 RegisterPass<FPass> X2("fp","fp");
175 struct LPass : public PassTestBase<LoopPass> {
177 static int initcount;
181 initcount = 0; fincount=0;
182 EXPECT_EQ(false, initialized);
184 static void finishedOK(int run, int finalized) {
185 PassTestBase<LoopPass>::finishedOK(run);
186 EXPECT_EQ(run, initcount);
187 EXPECT_EQ(finalized, fincount);
189 virtual bool doInitialization(Loop* L, LPPassManager &LPM) {
194 virtual bool runOnLoop(Loop *L, LPPassManager &LPM) {
195 EXPECT_TRUE(getAnalysisIfAvailable<TargetData>());
199 virtual bool doFinalization() {
205 int LPass::initcount=0;
206 int LPass::fincount=0;
207 RegisterPass<LPass> X3("lp","lp");
209 struct BPass : public PassTestBase<BasicBlockPass> {
214 static void finishedOK(int run, int N) {
215 PassTestBase<BasicBlockPass>::finishedOK(run);
216 EXPECT_EQ(inited, N);
223 virtual bool doInitialization(Module &M) {
224 EXPECT_EQ(false, initialized);
228 virtual bool doInitialization(Function &F) {
232 virtual bool runOnBasicBlock(BasicBlock &BB) {
233 EXPECT_TRUE(getAnalysisIfAvailable<TargetData>());
237 virtual bool doFinalization(Function &F) {
241 virtual bool doFinalization(Module &M) {
242 EXPECT_EQ(false, finalized);
244 EXPECT_EQ(0, allocated);
250 RegisterPass<BPass> X4("bp","bp");
252 struct OnTheFlyTest: public ModulePass {
255 OnTheFlyTest() : ModulePass(&ID) {}
256 virtual bool runOnModule(Module &M) {
257 EXPECT_TRUE(getAnalysisIfAvailable<TargetData>());
258 for (Module::iterator I=M.begin(),E=M.end(); I != E; ++I) {
261 SCOPED_TRACE("Running on the fly function pass");
262 getAnalysis<FPass>(F);
267 virtual void getAnalysisUsage(AnalysisUsage &AU) const {
268 AU.addRequired<FPass>();
271 char OnTheFlyTest::ID=0;
273 TEST(PassManager, RunOnce) {
274 Module M("test-once");
275 struct ModuleNDNM *mNDNM = new ModuleNDNM();
276 struct ModuleDNM *mDNM = new ModuleDNM();
277 struct ModuleNDM *mNDM = new ModuleNDM();
278 struct ModuleNDM2 *mNDM2 = new ModuleNDM2();
280 mNDM->run = mNDNM->run = mDNM->run = mNDM2->run = 0;
283 Passes.add(new TargetData(&M));
290 // each pass must be run exactly once, since nothing invalidates them
291 EXPECT_EQ(1, mNDM->run);
292 EXPECT_EQ(1, mNDNM->run);
293 EXPECT_EQ(1, mDNM->run);
294 EXPECT_EQ(1, mNDM2->run);
297 TEST(PassManager, ReRun) {
298 Module M("test-rerun");
299 struct ModuleNDNM *mNDNM = new ModuleNDNM();
300 struct ModuleDNM *mDNM = new ModuleDNM();
301 struct ModuleNDM *mNDM = new ModuleNDM();
302 struct ModuleNDM2 *mNDM2 = new ModuleNDM2();
304 mNDM->run = mNDNM->run = mDNM->run = mNDM2->run = 0;
307 Passes.add(new TargetData(&M));
310 Passes.add(mNDM2);// invalidates mNDM needed by mDNM
314 // Some passes must be rerun because a pass that modified the
315 // module/function was run inbetween
316 EXPECT_EQ(2, mNDM->run);
317 EXPECT_EQ(1, mNDNM->run);
318 EXPECT_EQ(1, mNDM2->run);
319 EXPECT_EQ(1, mDNM->run);
322 Module* makeLLVMModule();
325 void MemoryTestHelper(int run) {
326 Module *M = makeLLVMModule();
329 Passes.add(new TargetData(M));
336 void MemoryTestHelper(int run, int N) {
337 Module *M = makeLLVMModule();
340 Passes.add(new TargetData(M));
343 T::finishedOK(run, N);
347 TEST(PassManager, Memory) {
348 // SCC#1: test1->test2->test3->test1
350 // SCC#3: indirect call node
352 SCOPED_TRACE("Callgraph pass");
353 MemoryTestHelper<CGPass>(3);
357 SCOPED_TRACE("Function pass");
358 MemoryTestHelper<FPass>(4);// 4 functions
362 SCOPED_TRACE("Loop pass");
363 MemoryTestHelper<LPass>(2, 1); //2 loops, 1 function
366 SCOPED_TRACE("Basic block pass");
367 MemoryTestHelper<BPass>(7, 4); //9 basic blocks
372 TEST(PassManager, MemoryOnTheFly) {
373 Module *M = makeLLVMModule();
375 SCOPED_TRACE("Running OnTheFlyTest");
376 struct OnTheFlyTest *O = new OnTheFlyTest();
378 Passes.add(new TargetData(M));
382 FPass::finishedOK(4);
387 Module* makeLLVMModule() {
388 // Module Construction
389 Module* mod = new Module("test-mem");
390 mod->setDataLayout("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-"
391 "i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-"
392 "a0:0:64-s0:64:64-f80:128:128");
393 mod->setTargetTriple("x86_64-unknown-linux-gnu");
396 std::vector<const Type*>FuncTy_0_args;
397 FunctionType* FuncTy_0 = FunctionType::get(
398 /*Result=*/IntegerType::get(32),
399 /*Params=*/FuncTy_0_args,
402 std::vector<const Type*>FuncTy_2_args;
403 FuncTy_2_args.push_back(IntegerType::get(1));
404 FunctionType* FuncTy_2 = FunctionType::get(
405 /*Result=*/Type::VoidTy,
406 /*Params=*/FuncTy_2_args,
410 // Function Declarations
412 Function* func_test1 = Function::Create(
414 /*Linkage=*/GlobalValue::ExternalLinkage,
415 /*Name=*/"test1", mod);
416 func_test1->setCallingConv(CallingConv::C);
417 AttrListPtr func_test1_PAL;
418 func_test1->setAttributes(func_test1_PAL);
420 Function* func_test2 = Function::Create(
422 /*Linkage=*/GlobalValue::ExternalLinkage,
423 /*Name=*/"test2", mod);
424 func_test2->setCallingConv(CallingConv::C);
425 AttrListPtr func_test2_PAL;
426 func_test2->setAttributes(func_test2_PAL);
428 Function* func_test3 = Function::Create(
430 /*Linkage=*/GlobalValue::ExternalLinkage,
431 /*Name=*/"test3", mod);
432 func_test3->setCallingConv(CallingConv::C);
433 AttrListPtr func_test3_PAL;
434 func_test3->setAttributes(func_test3_PAL);
436 Function* func_test4 = Function::Create(
438 /*Linkage=*/GlobalValue::ExternalLinkage,
439 /*Name=*/"test4", mod);
440 func_test4->setCallingConv(CallingConv::C);
441 AttrListPtr func_test4_PAL;
442 func_test4->setAttributes(func_test4_PAL);
444 // Global Variable Declarations
447 // Constant Definitions
449 // Global Variable Definitions
451 // Function Definitions
453 // Function: test1 (func_test1)
456 BasicBlock* label_entry = BasicBlock::Create("entry",func_test1,0);
458 // Block entry (label_entry)
459 CallInst* int32_3 = CallInst::Create(func_test2, "", label_entry);
460 int32_3->setCallingConv(CallingConv::C);
461 int32_3->setTailCall(false);AttrListPtr int32_3_PAL;
462 int32_3->setAttributes(int32_3_PAL);
464 ReturnInst::Create(int32_3, label_entry);
468 // Function: test2 (func_test2)
471 BasicBlock* label_entry_5 = BasicBlock::Create("entry",func_test2,0);
473 // Block entry (label_entry_5)
474 CallInst* int32_6 = CallInst::Create(func_test3, "", label_entry_5);
475 int32_6->setCallingConv(CallingConv::C);
476 int32_6->setTailCall(false);AttrListPtr int32_6_PAL;
477 int32_6->setAttributes(int32_6_PAL);
479 ReturnInst::Create(int32_6, label_entry_5);
483 // Function: test3 (func_test3)
486 BasicBlock* label_entry_8 = BasicBlock::Create("entry",func_test3,0);
488 // Block entry (label_entry_8)
489 CallInst* int32_9 = CallInst::Create(func_test1, "", label_entry_8);
490 int32_9->setCallingConv(CallingConv::C);
491 int32_9->setTailCall(false);AttrListPtr int32_9_PAL;
492 int32_9->setAttributes(int32_9_PAL);
494 ReturnInst::Create(int32_9, label_entry_8);
498 // Function: test4 (func_test4)
500 Function::arg_iterator args = func_test4->arg_begin();
501 Value* int1_f = args++;
502 int1_f->setName("f");
504 BasicBlock* label_entry_11 = BasicBlock::Create("entry",func_test4,0);
505 BasicBlock* label_bb = BasicBlock::Create("bb",func_test4,0);
506 BasicBlock* label_bb1 = BasicBlock::Create("bb1",func_test4,0);
507 BasicBlock* label_return = BasicBlock::Create("return",func_test4,0);
509 // Block entry (label_entry_11)
510 BranchInst::Create(label_bb, label_entry_11);
512 // Block bb (label_bb)
513 BranchInst::Create(label_bb, label_bb1, int1_f, label_bb);
515 // Block bb1 (label_bb1)
516 BranchInst::Create(label_bb1, label_return, int1_f, label_bb1);
518 // Block return (label_return)
519 ReturnInst::Create(label_return);