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Imported Upstream version 5.18.0.207

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Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
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194
external/llvm/unittests/Bitcode/BitReaderTest.cpp vendored
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@ -1,194 +0,0 @@
//===- llvm/unittest/Bitcode/BitReaderTest.cpp - Tests for BitReader ------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/AsmParser/Parser.h"
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/Bitcode/BitcodeWriter.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Verifier.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
std::unique_ptr<Module> parseAssembly(LLVMContext &Context,
const char *Assembly) {
SMDiagnostic Error;
std::unique_ptr<Module> M = parseAssemblyString(Assembly, Error, Context);
std::string ErrMsg;
raw_string_ostream OS(ErrMsg);
Error.print("", OS);
// A failure here means that the test itself is buggy.
if (!M)
report_fatal_error(OS.str().c_str());
return M;
}
static void writeModuleToBuffer(std::unique_ptr<Module> Mod,
SmallVectorImpl<char> &Buffer) {
raw_svector_ostream OS(Buffer);
WriteBitcodeToFile(Mod.get(), OS);
}
static std::unique_ptr<Module> getLazyModuleFromAssembly(LLVMContext &Context,
SmallString<1024> &Mem,
const char *Assembly) {
writeModuleToBuffer(parseAssembly(Context, Assembly), Mem);
Expected<std::unique_ptr<Module>> ModuleOrErr =
getLazyBitcodeModule(MemoryBufferRef(Mem.str(), "test"), Context);
if (!ModuleOrErr)
report_fatal_error("Could not parse bitcode module");
return std::move(ModuleOrErr.get());
}
// Tests that lazy evaluation can parse functions out of order.
TEST(BitReaderTest, MaterializeFunctionsOutOfOrder) {
SmallString<1024> Mem;
LLVMContext Context;
std::unique_ptr<Module> M = getLazyModuleFromAssembly(
Context, Mem, "define void @f() {\n"
" unreachable\n"
"}\n"
"define void @g() {\n"
" unreachable\n"
"}\n"
"define void @h() {\n"
" unreachable\n"
"}\n"
"define void @j() {\n"
" unreachable\n"
"}\n");
EXPECT_FALSE(verifyModule(*M, &dbgs()));
Function *F = M->getFunction("f");
Function *G = M->getFunction("g");
Function *H = M->getFunction("h");
Function *J = M->getFunction("j");
// Initially all functions are not materialized (no basic blocks).
EXPECT_TRUE(F->empty());
EXPECT_TRUE(G->empty());
EXPECT_TRUE(H->empty());
EXPECT_TRUE(J->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
// Materialize h.
ASSERT_FALSE(H->materialize());
EXPECT_TRUE(F->empty());
EXPECT_TRUE(G->empty());
EXPECT_FALSE(H->empty());
EXPECT_TRUE(J->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
// Materialize g.
ASSERT_FALSE(G->materialize());
EXPECT_TRUE(F->empty());
EXPECT_FALSE(G->empty());
EXPECT_FALSE(H->empty());
EXPECT_TRUE(J->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
// Materialize j.
ASSERT_FALSE(J->materialize());
EXPECT_TRUE(F->empty());
EXPECT_FALSE(G->empty());
EXPECT_FALSE(H->empty());
EXPECT_FALSE(J->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
// Materialize f.
ASSERT_FALSE(F->materialize());
EXPECT_FALSE(F->empty());
EXPECT_FALSE(G->empty());
EXPECT_FALSE(H->empty());
EXPECT_FALSE(J->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
}
TEST(BitReaderTest, MaterializeFunctionsForBlockAddr) { // PR11677
SmallString<1024> Mem;
LLVMContext Context;
std::unique_ptr<Module> M = getLazyModuleFromAssembly(
Context, Mem, "@table = constant i8* blockaddress(@func, %bb)\n"
"define void @func() {\n"
" unreachable\n"
"bb:\n"
" unreachable\n"
"}\n");
EXPECT_FALSE(verifyModule(*M, &dbgs()));
EXPECT_FALSE(M->getFunction("func")->empty());
}
TEST(BitReaderTest, MaterializeFunctionsForBlockAddrInFunctionBefore) {
SmallString<1024> Mem;
LLVMContext Context;
std::unique_ptr<Module> M = getLazyModuleFromAssembly(
Context, Mem, "define i8* @before() {\n"
" ret i8* blockaddress(@func, %bb)\n"
"}\n"
"define void @other() {\n"
" unreachable\n"
"}\n"
"define void @func() {\n"
" unreachable\n"
"bb:\n"
" unreachable\n"
"}\n");
EXPECT_TRUE(M->getFunction("before")->empty());
EXPECT_TRUE(M->getFunction("func")->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
// Materialize @before, pulling in @func.
EXPECT_FALSE(M->getFunction("before")->materialize());
EXPECT_FALSE(M->getFunction("func")->empty());
EXPECT_TRUE(M->getFunction("other")->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
}
TEST(BitReaderTest, MaterializeFunctionsForBlockAddrInFunctionAfter) {
SmallString<1024> Mem;
LLVMContext Context;
std::unique_ptr<Module> M = getLazyModuleFromAssembly(
Context, Mem, "define void @func() {\n"
" unreachable\n"
"bb:\n"
" unreachable\n"
"}\n"
"define void @other() {\n"
" unreachable\n"
"}\n"
"define i8* @after() {\n"
" ret i8* blockaddress(@func, %bb)\n"
"}\n");
EXPECT_TRUE(M->getFunction("after")->empty());
EXPECT_TRUE(M->getFunction("func")->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
// Materialize @after, pulling in @func.
EXPECT_FALSE(M->getFunction("after")->materialize());
EXPECT_FALSE(M->getFunction("func")->empty());
EXPECT_TRUE(M->getFunction("other")->empty());
EXPECT_FALSE(verifyModule(*M, &dbgs()));
}
} // end namespace

151
external/llvm/unittests/Bitcode/BitstreamReaderTest.cpp vendored
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@ -1,151 +0,0 @@
//===- BitstreamReaderTest.cpp - Tests for BitstreamReader ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Bitcode/BitstreamReader.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Bitcode/BitstreamWriter.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(BitstreamReaderTest, AtEndOfStream) {
uint8_t Bytes[4] = {
0x00, 0x01, 0x02, 0x03
};
BitstreamCursor Cursor(Bytes);
EXPECT_FALSE(Cursor.AtEndOfStream());
(void)Cursor.Read(8);
EXPECT_FALSE(Cursor.AtEndOfStream());
(void)Cursor.Read(24);
EXPECT_TRUE(Cursor.AtEndOfStream());
Cursor.JumpToBit(0);
EXPECT_FALSE(Cursor.AtEndOfStream());
Cursor.JumpToBit(32);
EXPECT_TRUE(Cursor.AtEndOfStream());
}
TEST(BitstreamReaderTest, AtEndOfStreamJump) {
uint8_t Bytes[4] = {
0x00, 0x01, 0x02, 0x03
};
BitstreamCursor Cursor(Bytes);
Cursor.JumpToBit(32);
EXPECT_TRUE(Cursor.AtEndOfStream());
}
TEST(BitstreamReaderTest, AtEndOfStreamEmpty) {
BitstreamCursor Cursor(ArrayRef<uint8_t>{});
EXPECT_TRUE(Cursor.AtEndOfStream());
}
TEST(BitstreamReaderTest, getCurrentByteNo) {
uint8_t Bytes[] = {0x00, 0x01, 0x02, 0x03};
SimpleBitstreamCursor Cursor(Bytes);
for (unsigned I = 0, E = 32; I != E; ++I) {
EXPECT_EQ(I / 8, Cursor.getCurrentByteNo());
(void)Cursor.Read(1);
}
EXPECT_EQ(4u, Cursor.getCurrentByteNo());
}
TEST(BitstreamReaderTest, getPointerToByte) {
uint8_t Bytes[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
SimpleBitstreamCursor Cursor(Bytes);
for (unsigned I = 0, E = 8; I != E; ++I) {
EXPECT_EQ(Bytes + I, Cursor.getPointerToByte(I, 1));
}
}
TEST(BitstreamReaderTest, getPointerToBit) {
uint8_t Bytes[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
SimpleBitstreamCursor Cursor(Bytes);
for (unsigned I = 0, E = 8; I != E; ++I) {
EXPECT_EQ(Bytes + I, Cursor.getPointerToBit(I * 8, 1));
}
}
TEST(BitstreamReaderTest, readRecordWithBlobWhileStreaming) {
SmallVector<uint8_t, 1> BlobData;
for (unsigned I = 0, E = 1024; I != E; ++I)
BlobData.push_back(I);
// Try a bunch of different sizes.
const unsigned Magic = 0x12345678;
const unsigned BlockID = bitc::FIRST_APPLICATION_BLOCKID;
const unsigned RecordID = 1;
for (unsigned I = 0, BlobSize = 0, E = BlobData.size(); BlobSize < E;
BlobSize += ++I) {
StringRef BlobIn((const char *)BlobData.begin(), BlobSize);
// Write the bitcode.
SmallVector<char, 1> Buffer;
unsigned AbbrevID;
{
BitstreamWriter Stream(Buffer);
Stream.Emit(Magic, 32);
Stream.EnterSubblock(BlockID, 3);
auto Abbrev = std::make_shared<BitCodeAbbrev>();
Abbrev->Add(BitCodeAbbrevOp(RecordID));
Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
AbbrevID = Stream.EmitAbbrev(std::move(Abbrev));
unsigned Record[] = {RecordID};
Stream.EmitRecordWithBlob(AbbrevID, makeArrayRef(Record), BlobIn);
Stream.ExitBlock();
}
// Stream the buffer into the reader.
BitstreamCursor Stream(
ArrayRef<uint8_t>((const uint8_t *)Buffer.begin(), Buffer.size()));
// Header. Included in test so that we can run llvm-bcanalyzer to debug
// when there are problems.
ASSERT_EQ(Magic, Stream.Read(32));
// Block.
BitstreamEntry Entry =
Stream.advance(BitstreamCursor::AF_DontAutoprocessAbbrevs);
ASSERT_EQ(BitstreamEntry::SubBlock, Entry.Kind);
ASSERT_EQ(BlockID, Entry.ID);
ASSERT_FALSE(Stream.EnterSubBlock(BlockID));
// Abbreviation.
Entry = Stream.advance();
ASSERT_EQ(BitstreamEntry::Record, Entry.Kind);
ASSERT_EQ(AbbrevID, Entry.ID);
// Record.
StringRef BlobOut;
SmallVector<uint64_t, 1> Record;
ASSERT_EQ(RecordID, Stream.readRecord(Entry.ID, Record, &BlobOut));
EXPECT_TRUE(Record.empty());
EXPECT_EQ(BlobIn, BlobOut);
}
}
TEST(BitstreamReaderTest, shortRead) {
uint8_t Bytes[] = {8, 7, 6, 5, 4, 3, 2, 1};
for (unsigned I = 1; I != 8; ++I) {
SimpleBitstreamCursor Cursor(ArrayRef<uint8_t>(Bytes, I));
EXPECT_EQ(8ull, Cursor.Read(8));
}
}
} // end anonymous namespace

59
external/llvm/unittests/Bitcode/BitstreamWriterTest.cpp vendored
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@ -1,59 +0,0 @@
//===- BitstreamWriterTest.cpp - Tests for BitstreamWriter ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Bitcode/BitstreamWriter.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(BitstreamWriterTest, emitBlob) {
SmallString<64> Buffer;
BitstreamWriter W(Buffer);
W.emitBlob("str", /* ShouldEmitSize */ false);
EXPECT_EQ(StringRef("str\0", 4), Buffer);
}
TEST(BitstreamWriterTest, emitBlobWithSize) {
SmallString<64> Buffer;
{
BitstreamWriter W(Buffer);
W.emitBlob("str");
}
SmallString<64> Expected;
{
BitstreamWriter W(Expected);
W.EmitVBR(3, 6);
W.FlushToWord();
W.Emit('s', 8);
W.Emit('t', 8);
W.Emit('r', 8);
W.Emit(0, 8);
}
EXPECT_EQ(StringRef(Expected), Buffer);
}
TEST(BitstreamWriterTest, emitBlobEmpty) {
SmallString<64> Buffer;
BitstreamWriter W(Buffer);
W.emitBlob("", /* ShouldEmitSize */ false);
EXPECT_EQ(StringRef(""), Buffer);
}
TEST(BitstreamWriterTest, emitBlob4ByteAligned) {
SmallString<64> Buffer;
BitstreamWriter W(Buffer);
W.emitBlob("str0", /* ShouldEmitSize */ false);
EXPECT_EQ(StringRef("str0"), Buffer);
}
} // end namespace

13
external/llvm/unittests/Bitcode/CMakeLists.txt vendored
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@ -1,13 +0,0 @@
set(LLVM_LINK_COMPONENTS
AsmParser
BitReader
BitWriter
Core
Support
)
add_llvm_unittest(BitcodeTests
BitReaderTest.cpp
BitstreamReaderTest.cpp
BitstreamWriterTest.cpp
)