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annotate unittests/IR/VerifierTest.cpp @ 40:e34ccae0bb26

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create if(setjmp) statement automatically.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 26 Dec 2013 19:56:35 +0900
parents 95c75e76d11b
children 54457678186b
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1 //===- llvm/unittest/IR/VerifierTest.cpp - Verifier unit tests ------------===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #include "llvm/Analysis/Verifier.h"
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11 #include "llvm/ADT/OwningPtr.h"
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12 #include "llvm/IR/Constants.h"
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13 #include "llvm/IR/DerivedTypes.h"
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14 #include "llvm/IR/Function.h"
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15 #include "llvm/IR/GlobalAlias.h"
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16 #include "llvm/IR/GlobalVariable.h"
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17 #include "llvm/IR/Instructions.h"
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18 #include "llvm/IR/LLVMContext.h"
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19 #include "llvm/IR/Module.h"
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20 #include "gtest/gtest.h"
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21
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22 namespace llvm {
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23 namespace {
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24
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25 TEST(VerifierTest, Branch_i1) {
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26 LLVMContext &C = getGlobalContext();
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27 Module M("M", C);
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28 FunctionType *FTy = FunctionType::get(Type::getVoidTy(C), /*isVarArg=*/false);
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29 Function *F = cast<Function>(M.getOrInsertFunction("foo", FTy));
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30 BasicBlock *Entry = BasicBlock::Create(C, "entry", F);
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31 BasicBlock *Exit = BasicBlock::Create(C, "exit", F);
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32 ReturnInst::Create(C, Exit);
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33
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34 // To avoid triggering an assertion in BranchInst::Create, we first create
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35 // a branch with an 'i1' condition ...
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36
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37 Constant *False = ConstantInt::getFalse(C);
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38 BranchInst *BI = BranchInst::Create(Exit, Exit, False, Entry);
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39
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40 // ... then use setOperand to redirect it to a value of different type.
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41
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42 Constant *Zero32 = ConstantInt::get(IntegerType::get(C, 32), 0);
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43 BI->setOperand(0, Zero32);
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44
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45 EXPECT_TRUE(verifyFunction(*F, ReturnStatusAction));
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46 }
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47
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48 TEST(VerifierTest, AliasUnnamedAddr) {
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49 LLVMContext &C = getGlobalContext();
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50 Module M("M", C);
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51 Type *Ty = Type::getInt8Ty(C);
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52 Constant *Init = Constant::getNullValue(Ty);
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53 GlobalVariable *Aliasee = new GlobalVariable(M, Ty, true,
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54 GlobalValue::ExternalLinkage,
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55 Init, "foo");
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56 GlobalAlias *GA = new GlobalAlias(Type::getInt8PtrTy(C),
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57 GlobalValue::ExternalLinkage,
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58 "bar", Aliasee, &M);
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59 GA->setUnnamedAddr(true);
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60 std::string Error;
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61 EXPECT_TRUE(verifyModule(M, ReturnStatusAction, &Error));
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62 EXPECT_TRUE(StringRef(Error).startswith("Alias cannot have unnamed_addr"));
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63 }
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64
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65 TEST(VerifierTest, InvalidRetAttribute) {
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66 LLVMContext &C = getGlobalContext();
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67 Module M("M", C);
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68 FunctionType *FTy = FunctionType::get(Type::getInt32Ty(C), /*isVarArg=*/false);
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69 Function *F = cast<Function>(M.getOrInsertFunction("foo", FTy));
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70 AttributeSet AS = F->getAttributes();
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71 F->setAttributes(AS.addAttribute(C, AttributeSet::ReturnIndex,
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72 Attribute::UWTable));
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73
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74 std::string Error;
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75 EXPECT_TRUE(verifyModule(M, ReturnStatusAction, &Error));
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76 EXPECT_TRUE(StringRef(Error).
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77 startswith("Attribute 'uwtable' only applies to functions!"));
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78 }
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79
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80 }
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81 }