1 //===- llvm/unittest/IR/PassManager.cpp - PassManager 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/Assembly/Parser.h"
11 #include "llvm/IR/Function.h"
12 #include "llvm/IR/LLVMContext.h"
13 #include "llvm/IR/Module.h"
14 #include "llvm/IR/PassManager.h"
15 #include "llvm/Support/SourceMgr.h"
16 #include "gtest/gtest.h"
22 struct TestModulePass {
23 TestModulePass(int &RunCount) : RunCount(RunCount) {}
33 struct TestFunctionPass {
34 TestFunctionPass(int &RunCount) : RunCount(RunCount) {}
36 bool run(Function *F) {
44 Module *parseIR(const char *IR) {
45 LLVMContext &C = getGlobalContext();
47 return ParseAssemblyString(IR, 0, Err, C);
50 class PassManagerTest : public ::testing::Test {
56 : M(parseIR("define void @f() {\n"
62 "define void @g() {\n"
65 "define void @h() {\n"
70 TEST_F(PassManagerTest, Basic) {
71 ModulePassManager MPM(M.get());
72 FunctionPassManager FPM;
74 // Count the runs over a module.
75 int ModulePassRunCount = 0;
76 MPM.addPass(TestModulePass(ModulePassRunCount));
78 // Count the runs over a Function.
79 int FunctionPassRunCount = 0;
80 FPM.addPass(TestFunctionPass(FunctionPassRunCount));
84 EXPECT_EQ(1, ModulePassRunCount);
85 EXPECT_EQ(3, FunctionPassRunCount);