1 //===- unittest/IceParseTypesTest.cpp -------------------------------------===// 2 // Tests parser for PNaCl bitcode. 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is distributed under the University of Illinois Open Source 7 // License. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 11 // Tests record errors in the types block when parsing PNaCl bitcode. 12 13 // TODO(kschimpf) Add more tests. 14 15 #include "BitcodeMunge.h" 16 #include "unittests/Bitcode/NaClMungeTest.h" 17 18 using namespace llvm; 19 using namespace naclmungetest; 20 using namespace IceTest; 21 22 namespace { 23 24 static const unsigned NO_LOCAL_ABBREVS = 25 NaClBitsNeededForValue(naclbitc::DEFAULT_MAX_ABBREV); 26 27 const uint64_t BitcodeRecords[] = { 28 naclbitc::ENTER_SUBBLOCK, naclbitc::BLK_CODE_ENTER, 29 naclbitc::MODULE_BLOCK_ID, NO_LOCAL_ABBREVS, Terminator, 30 naclbitc::ENTER_SUBBLOCK, naclbitc::BLK_CODE_ENTER, 31 naclbitc::TYPE_BLOCK_ID_NEW, NO_LOCAL_ABBREVS, Terminator, 32 naclbitc::UNABBREV_RECORD, naclbitc::TYPE_CODE_NUMENTRY, 2, Terminator, 33 naclbitc::UNABBREV_RECORD, naclbitc::TYPE_CODE_INTEGER, 32, Terminator, 34 naclbitc::UNABBREV_RECORD, naclbitc::TYPE_CODE_FLOAT, Terminator, 35 naclbitc::END_BLOCK, naclbitc::BLK_CODE_EXIT, Terminator, 36 naclbitc::END_BLOCK, naclbitc::BLK_CODE_EXIT, Terminator}; 37 38 const char *ExpectedDump = 39 " 0:0|<65532, 80, 69, 88, 69, 1, 0,|Magic Number: 'PEXE' (80, 69, " 40 "88, 69)\n" 41 " | 8, 0, 17, 0, 4, 0, 2, 0, 0, |PNaCl Version: 2\n" 42 " | 0> |\n" 43 " 16:0|1: <65535, 8, 2> |module { // BlockID = 8\n" 44 " 24:0| 1: <65535, 17, 2> | types { // BlockID = 17\n" 45 " 32:0| 3: <1, 2> | count 2;\n" 46 " 34:4| 3: <7, 32> | @t0 = i32;\n" 47 " 37:6| 3: <3> | @t1 = float;\n" 48 " 39:4| 0: <65534> | }\n" 49 " 40:0|0: <65534> |}\n"; 50 51 TEST(NaClParseTypesTest, ShowExpectedDump) { 52 NaClObjDumpMunger Munger(ARRAY_TERM(BitcodeRecords)); 53 EXPECT_TRUE(Munger.runTest()); 54 EXPECT_EQ(ExpectedDump, Munger.getTestResults()); 55 } 56 57 // Show what happens when misdefining: @t1 = float" 58 TEST(NaClParseTypesTest, BadFloatTypeDefinition) { 59 // Index for "@t1 = float;" record. 60 const uint64_t FloatTypeIndex = 4; 61 const uint64_t Edit[] = {FloatTypeIndex, NaClMungedBitcode::Replace, 62 // Add extraneous 1 to end of float record. 63 naclbitc::UNABBREV_RECORD, naclbitc::TYPE_CODE_FLOAT, 64 1, Terminator}; 65 66 SubzeroBitcodeMunger Munger(ARRAY_TERM(BitcodeRecords)); 67 EXPECT_FALSE(Munger.runTest(ARRAY(Edit))); 68 EXPECT_EQ("Error(37:6): Invalid type record: <3 1>\n", 69 Munger.getTestResults()); 70 } 71 72 // Show what happens when the count record value is way too big. 73 // See: https://code.google.com/p/nativeclient/issues/detail?id=4195 74 TEST(NaClParseTypesTest, BadTypeCountRecord) { 75 // Index for "count 2;". 76 const uint64_t CountRecordIndex = 2; 77 const uint64_t Edit[] = { 78 CountRecordIndex, NaClMungedBitcode::Replace, naclbitc::UNABBREV_RECORD, 79 naclbitc::TYPE_CODE_NUMENTRY, 18446744073709547964ULL, Terminator}; 80 81 SubzeroBitcodeMunger Munger(ARRAY_TERM(BitcodeRecords)); 82 Munger.Flags.setGenerateUnitTestMessages(false); 83 EXPECT_FALSE(Munger.runTest(ARRAY(Edit))); 84 EXPECT_EQ("Error(32:0): Size to big for count record: 18446744073709547964\n" 85 "Error(48:4): Types block expected 4294963644 types but found: 2\n", 86 Munger.getTestResults()); 87 } 88 89 } // end of anonymous namespace 90
