forked from OSchip/llvm-project
489 lines
16 KiB
C++
489 lines
16 KiB
C++
//===- MCJITTest.cpp - Unit tests for the MCJIT ---------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This test suite verifies basic MCJIT functionality when invoked form the C
|
|
// API.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm-c/Analysis.h"
|
|
#include "MCJITTestAPICommon.h"
|
|
#include "llvm-c/Core.h"
|
|
#include "llvm-c/ExecutionEngine.h"
|
|
#include "llvm-c/Target.h"
|
|
#include "llvm-c/Transforms/PassManagerBuilder.h"
|
|
#include "llvm-c/Transforms/Scalar.h"
|
|
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/Host.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
static bool didCallAllocateCodeSection;
|
|
static bool didAllocateCompactUnwindSection;
|
|
static bool didCallYield;
|
|
|
|
static uint8_t *roundTripAllocateCodeSection(void *object, uintptr_t size,
|
|
unsigned alignment,
|
|
unsigned sectionID,
|
|
const char *sectionName) {
|
|
didCallAllocateCodeSection = true;
|
|
return static_cast<SectionMemoryManager*>(object)->allocateCodeSection(
|
|
size, alignment, sectionID, sectionName);
|
|
}
|
|
|
|
static uint8_t *roundTripAllocateDataSection(void *object, uintptr_t size,
|
|
unsigned alignment,
|
|
unsigned sectionID,
|
|
const char *sectionName,
|
|
LLVMBool isReadOnly) {
|
|
if (!strcmp(sectionName, "__compact_unwind"))
|
|
didAllocateCompactUnwindSection = true;
|
|
return static_cast<SectionMemoryManager*>(object)->allocateDataSection(
|
|
size, alignment, sectionID, sectionName, isReadOnly);
|
|
}
|
|
|
|
static LLVMBool roundTripFinalizeMemory(void *object, char **errMsg) {
|
|
std::string errMsgString;
|
|
bool result =
|
|
static_cast<SectionMemoryManager*>(object)->finalizeMemory(&errMsgString);
|
|
if (result) {
|
|
*errMsg = LLVMCreateMessage(errMsgString.c_str());
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void roundTripDestroy(void *object) {
|
|
delete static_cast<SectionMemoryManager*>(object);
|
|
}
|
|
|
|
static void yield(LLVMContextRef, void *) {
|
|
didCallYield = true;
|
|
}
|
|
|
|
namespace {
|
|
|
|
// memory manager to test reserve allocation space callback
|
|
class TestReserveAllocationSpaceMemoryManager: public SectionMemoryManager {
|
|
public:
|
|
uintptr_t ReservedCodeSize;
|
|
uintptr_t UsedCodeSize;
|
|
uintptr_t ReservedDataSizeRO;
|
|
uintptr_t UsedDataSizeRO;
|
|
uintptr_t ReservedDataSizeRW;
|
|
uintptr_t UsedDataSizeRW;
|
|
|
|
TestReserveAllocationSpaceMemoryManager() :
|
|
ReservedCodeSize(0), UsedCodeSize(0), ReservedDataSizeRO(0),
|
|
UsedDataSizeRO(0), ReservedDataSizeRW(0), UsedDataSizeRW(0) {
|
|
}
|
|
|
|
bool needsToReserveAllocationSpace() override { return true; }
|
|
|
|
void reserveAllocationSpace(uintptr_t CodeSize, uintptr_t DataSizeRO,
|
|
uintptr_t DataSizeRW) override {
|
|
ReservedCodeSize = CodeSize;
|
|
ReservedDataSizeRO = DataSizeRO;
|
|
ReservedDataSizeRW = DataSizeRW;
|
|
}
|
|
|
|
void useSpace(uintptr_t* UsedSize, uintptr_t Size, unsigned Alignment) {
|
|
uintptr_t AlignedSize = (Size + Alignment - 1) / Alignment * Alignment;
|
|
uintptr_t AlignedBegin = (*UsedSize + Alignment - 1) / Alignment * Alignment;
|
|
*UsedSize = AlignedBegin + AlignedSize;
|
|
}
|
|
|
|
uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
|
|
unsigned SectionID, StringRef SectionName,
|
|
bool IsReadOnly) override {
|
|
useSpace(IsReadOnly ? &UsedDataSizeRO : &UsedDataSizeRW, Size, Alignment);
|
|
return SectionMemoryManager::allocateDataSection(Size, Alignment,
|
|
SectionID, SectionName, IsReadOnly);
|
|
}
|
|
|
|
uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
|
|
unsigned SectionID,
|
|
StringRef SectionName) override {
|
|
useSpace(&UsedCodeSize, Size, Alignment);
|
|
return SectionMemoryManager::allocateCodeSection(Size, Alignment,
|
|
SectionID, SectionName);
|
|
}
|
|
};
|
|
|
|
class MCJITCAPITest : public testing::Test, public MCJITTestAPICommon {
|
|
protected:
|
|
MCJITCAPITest() {
|
|
// The architectures below are known to be compatible with MCJIT as they
|
|
// are copied from test/ExecutionEngine/MCJIT/lit.local.cfg and should be
|
|
// kept in sync.
|
|
SupportedArchs.push_back(Triple::aarch64);
|
|
SupportedArchs.push_back(Triple::arm);
|
|
SupportedArchs.push_back(Triple::mips);
|
|
SupportedArchs.push_back(Triple::x86);
|
|
SupportedArchs.push_back(Triple::x86_64);
|
|
|
|
// Some architectures have sub-architectures in which tests will fail, like
|
|
// ARM. These two vectors will define if they do have sub-archs (to avoid
|
|
// extra work for those who don't), and if so, if they are listed to work
|
|
HasSubArchs.push_back(Triple::arm);
|
|
SupportedSubArchs.push_back("armv6");
|
|
SupportedSubArchs.push_back("armv7");
|
|
|
|
// The operating systems below are known to be sufficiently incompatible
|
|
// that they will fail the MCJIT C API tests.
|
|
UnsupportedEnvironments.push_back(Triple::Cygnus);
|
|
}
|
|
|
|
void SetUp() override {
|
|
didCallAllocateCodeSection = false;
|
|
didAllocateCompactUnwindSection = false;
|
|
didCallYield = false;
|
|
Module = nullptr;
|
|
Function = nullptr;
|
|
Engine = nullptr;
|
|
Error = nullptr;
|
|
}
|
|
|
|
void TearDown() override {
|
|
if (Engine)
|
|
LLVMDisposeExecutionEngine(Engine);
|
|
else if (Module)
|
|
LLVMDisposeModule(Module);
|
|
}
|
|
|
|
void buildSimpleFunction() {
|
|
Module = LLVMModuleCreateWithName("simple_module");
|
|
|
|
LLVMSetTarget(Module, HostTriple.c_str());
|
|
|
|
Function = LLVMAddFunction(Module, "simple_function",
|
|
LLVMFunctionType(LLVMInt32Type(), nullptr,0, 0));
|
|
LLVMSetFunctionCallConv(Function, LLVMCCallConv);
|
|
|
|
LLVMBasicBlockRef entry = LLVMAppendBasicBlock(Function, "entry");
|
|
LLVMBuilderRef builder = LLVMCreateBuilder();
|
|
LLVMPositionBuilderAtEnd(builder, entry);
|
|
LLVMBuildRet(builder, LLVMConstInt(LLVMInt32Type(), 42, 0));
|
|
|
|
LLVMVerifyModule(Module, LLVMAbortProcessAction, &Error);
|
|
LLVMDisposeMessage(Error);
|
|
|
|
LLVMDisposeBuilder(builder);
|
|
}
|
|
|
|
void buildFunctionThatUsesStackmap() {
|
|
Module = LLVMModuleCreateWithName("simple_module");
|
|
|
|
LLVMSetTarget(Module, HostTriple.c_str());
|
|
|
|
LLVMTypeRef stackmapParamTypes[] = { LLVMInt64Type(), LLVMInt32Type() };
|
|
LLVMValueRef stackmap = LLVMAddFunction(
|
|
Module, "llvm.experimental.stackmap",
|
|
LLVMFunctionType(LLVMVoidType(), stackmapParamTypes, 2, 1));
|
|
LLVMSetLinkage(stackmap, LLVMExternalLinkage);
|
|
|
|
Function = LLVMAddFunction(Module, "simple_function",
|
|
LLVMFunctionType(LLVMInt32Type(), nullptr, 0, 0));
|
|
|
|
LLVMBasicBlockRef entry = LLVMAppendBasicBlock(Function, "entry");
|
|
LLVMBuilderRef builder = LLVMCreateBuilder();
|
|
LLVMPositionBuilderAtEnd(builder, entry);
|
|
LLVMValueRef stackmapArgs[] = {
|
|
LLVMConstInt(LLVMInt64Type(), 0, 0), LLVMConstInt(LLVMInt32Type(), 5, 0),
|
|
LLVMConstInt(LLVMInt32Type(), 42, 0)
|
|
};
|
|
LLVMBuildCall(builder, stackmap, stackmapArgs, 3, "");
|
|
LLVMBuildRet(builder, LLVMConstInt(LLVMInt32Type(), 42, 0));
|
|
|
|
LLVMVerifyModule(Module, LLVMAbortProcessAction, &Error);
|
|
LLVMDisposeMessage(Error);
|
|
|
|
LLVMDisposeBuilder(builder);
|
|
}
|
|
|
|
void buildModuleWithCodeAndData() {
|
|
Module = LLVMModuleCreateWithName("simple_module");
|
|
|
|
LLVMSetTarget(Module, HostTriple.c_str());
|
|
|
|
// build a global int32 variable initialized to 42.
|
|
LLVMValueRef GlobalVar = LLVMAddGlobal(Module, LLVMInt32Type(), "intVal");
|
|
LLVMSetInitializer(GlobalVar, LLVMConstInt(LLVMInt32Type(), 42, 0));
|
|
|
|
{
|
|
Function = LLVMAddFunction(Module, "getGlobal",
|
|
LLVMFunctionType(LLVMInt32Type(), nullptr, 0, 0));
|
|
LLVMSetFunctionCallConv(Function, LLVMCCallConv);
|
|
|
|
LLVMBasicBlockRef Entry = LLVMAppendBasicBlock(Function, "entry");
|
|
LLVMBuilderRef Builder = LLVMCreateBuilder();
|
|
LLVMPositionBuilderAtEnd(Builder, Entry);
|
|
|
|
LLVMValueRef IntVal = LLVMBuildLoad(Builder, GlobalVar, "intVal");
|
|
LLVMBuildRet(Builder, IntVal);
|
|
|
|
LLVMVerifyModule(Module, LLVMAbortProcessAction, &Error);
|
|
LLVMDisposeMessage(Error);
|
|
|
|
LLVMDisposeBuilder(Builder);
|
|
}
|
|
|
|
{
|
|
LLVMTypeRef ParamTypes[] = { LLVMInt32Type() };
|
|
Function2 = LLVMAddFunction(
|
|
Module, "setGlobal", LLVMFunctionType(LLVMVoidType(), ParamTypes, 1, 0));
|
|
LLVMSetFunctionCallConv(Function2, LLVMCCallConv);
|
|
|
|
LLVMBasicBlockRef Entry = LLVMAppendBasicBlock(Function2, "entry");
|
|
LLVMBuilderRef Builder = LLVMCreateBuilder();
|
|
LLVMPositionBuilderAtEnd(Builder, Entry);
|
|
|
|
LLVMValueRef Arg = LLVMGetParam(Function2, 0);
|
|
LLVMBuildStore(Builder, Arg, GlobalVar);
|
|
LLVMBuildRetVoid(Builder);
|
|
|
|
LLVMVerifyModule(Module, LLVMAbortProcessAction, &Error);
|
|
LLVMDisposeMessage(Error);
|
|
|
|
LLVMDisposeBuilder(Builder);
|
|
}
|
|
}
|
|
|
|
void buildMCJITOptions() {
|
|
LLVMInitializeMCJITCompilerOptions(&Options, sizeof(Options));
|
|
Options.OptLevel = 2;
|
|
|
|
// Just ensure that this field still exists.
|
|
Options.NoFramePointerElim = false;
|
|
}
|
|
|
|
void useRoundTripSectionMemoryManager() {
|
|
Options.MCJMM = LLVMCreateSimpleMCJITMemoryManager(
|
|
new SectionMemoryManager(),
|
|
roundTripAllocateCodeSection,
|
|
roundTripAllocateDataSection,
|
|
roundTripFinalizeMemory,
|
|
roundTripDestroy);
|
|
}
|
|
|
|
void buildMCJITEngine() {
|
|
ASSERT_EQ(
|
|
0, LLVMCreateMCJITCompilerForModule(&Engine, Module, &Options,
|
|
sizeof(Options), &Error));
|
|
}
|
|
|
|
void buildAndRunPasses() {
|
|
LLVMPassManagerRef pass = LLVMCreatePassManager();
|
|
LLVMAddTargetData(LLVMGetExecutionEngineTargetData(Engine), pass);
|
|
LLVMAddConstantPropagationPass(pass);
|
|
LLVMAddInstructionCombiningPass(pass);
|
|
LLVMRunPassManager(pass, Module);
|
|
LLVMDisposePassManager(pass);
|
|
}
|
|
|
|
void buildAndRunOptPasses() {
|
|
LLVMPassManagerBuilderRef passBuilder;
|
|
|
|
passBuilder = LLVMPassManagerBuilderCreate();
|
|
LLVMPassManagerBuilderSetOptLevel(passBuilder, 2);
|
|
LLVMPassManagerBuilderSetSizeLevel(passBuilder, 0);
|
|
|
|
LLVMPassManagerRef functionPasses =
|
|
LLVMCreateFunctionPassManagerForModule(Module);
|
|
LLVMPassManagerRef modulePasses =
|
|
LLVMCreatePassManager();
|
|
|
|
LLVMAddTargetData(LLVMGetExecutionEngineTargetData(Engine), modulePasses);
|
|
|
|
LLVMPassManagerBuilderPopulateFunctionPassManager(passBuilder,
|
|
functionPasses);
|
|
LLVMPassManagerBuilderPopulateModulePassManager(passBuilder, modulePasses);
|
|
|
|
LLVMPassManagerBuilderDispose(passBuilder);
|
|
|
|
LLVMInitializeFunctionPassManager(functionPasses);
|
|
for (LLVMValueRef value = LLVMGetFirstFunction(Module);
|
|
value; value = LLVMGetNextFunction(value))
|
|
LLVMRunFunctionPassManager(functionPasses, value);
|
|
LLVMFinalizeFunctionPassManager(functionPasses);
|
|
|
|
LLVMRunPassManager(modulePasses, Module);
|
|
|
|
LLVMDisposePassManager(functionPasses);
|
|
LLVMDisposePassManager(modulePasses);
|
|
}
|
|
|
|
LLVMModuleRef Module;
|
|
LLVMValueRef Function;
|
|
LLVMValueRef Function2;
|
|
LLVMMCJITCompilerOptions Options;
|
|
LLVMExecutionEngineRef Engine;
|
|
char *Error;
|
|
};
|
|
} // end anonymous namespace
|
|
|
|
TEST_F(MCJITCAPITest, simple_function) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
buildSimpleFunction();
|
|
buildMCJITOptions();
|
|
buildMCJITEngine();
|
|
buildAndRunPasses();
|
|
|
|
union {
|
|
void *raw;
|
|
int (*usable)();
|
|
} functionPointer;
|
|
functionPointer.raw = LLVMGetPointerToGlobal(Engine, Function);
|
|
|
|
EXPECT_EQ(42, functionPointer.usable());
|
|
}
|
|
|
|
TEST_F(MCJITCAPITest, gva) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
Module = LLVMModuleCreateWithName("simple_module");
|
|
LLVMSetTarget(Module, HostTriple.c_str());
|
|
LLVMValueRef GlobalVar = LLVMAddGlobal(Module, LLVMInt32Type(), "simple_value");
|
|
LLVMSetInitializer(GlobalVar, LLVMConstInt(LLVMInt32Type(), 42, 0));
|
|
|
|
buildMCJITOptions();
|
|
buildMCJITEngine();
|
|
buildAndRunPasses();
|
|
|
|
uint64_t raw = LLVMGetGlobalValueAddress(Engine, "simple_value");
|
|
int32_t *usable = (int32_t *) raw;
|
|
|
|
EXPECT_EQ(42, *usable);
|
|
}
|
|
|
|
TEST_F(MCJITCAPITest, gfa) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
buildSimpleFunction();
|
|
buildMCJITOptions();
|
|
buildMCJITEngine();
|
|
buildAndRunPasses();
|
|
|
|
uint64_t raw = LLVMGetFunctionAddress(Engine, "simple_function");
|
|
int (*usable)() = (int (*)()) raw;
|
|
|
|
EXPECT_EQ(42, usable());
|
|
}
|
|
|
|
TEST_F(MCJITCAPITest, custom_memory_manager) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
buildSimpleFunction();
|
|
buildMCJITOptions();
|
|
useRoundTripSectionMemoryManager();
|
|
buildMCJITEngine();
|
|
buildAndRunPasses();
|
|
|
|
union {
|
|
void *raw;
|
|
int (*usable)();
|
|
} functionPointer;
|
|
functionPointer.raw = LLVMGetPointerToGlobal(Engine, Function);
|
|
|
|
EXPECT_EQ(42, functionPointer.usable());
|
|
EXPECT_TRUE(didCallAllocateCodeSection);
|
|
}
|
|
|
|
TEST_F(MCJITCAPITest, stackmap_creates_compact_unwind_on_darwin) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
// This test is also not supported on non-x86 platforms.
|
|
if (Triple(HostTriple).getArch() != Triple::x86_64)
|
|
return;
|
|
|
|
buildFunctionThatUsesStackmap();
|
|
buildMCJITOptions();
|
|
useRoundTripSectionMemoryManager();
|
|
buildMCJITEngine();
|
|
buildAndRunOptPasses();
|
|
|
|
union {
|
|
void *raw;
|
|
int (*usable)();
|
|
} functionPointer;
|
|
functionPointer.raw = LLVMGetPointerToGlobal(Engine, Function);
|
|
|
|
EXPECT_EQ(42, functionPointer.usable());
|
|
EXPECT_TRUE(didCallAllocateCodeSection);
|
|
|
|
// Up to this point, the test is specific only to X86-64. But this next
|
|
// expectation is only valid on Darwin because it assumes that unwind
|
|
// data is made available only through compact_unwind. It would be
|
|
// worthwhile to extend this to handle non-Darwin platforms, in which
|
|
// case you'd want to look for an eh_frame or something.
|
|
//
|
|
// FIXME: Currently, MCJIT relies on a configure-time check to determine which
|
|
// sections to emit. The JIT client should have runtime control over this.
|
|
EXPECT_TRUE(
|
|
Triple(HostTriple).getOS() != Triple::Darwin ||
|
|
Triple(HostTriple).isMacOSXVersionLT(10, 7) ||
|
|
didAllocateCompactUnwindSection);
|
|
}
|
|
|
|
TEST_F(MCJITCAPITest, reserve_allocation_space) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
TestReserveAllocationSpaceMemoryManager* MM = new TestReserveAllocationSpaceMemoryManager();
|
|
|
|
buildModuleWithCodeAndData();
|
|
buildMCJITOptions();
|
|
Options.MCJMM = wrap(MM);
|
|
buildMCJITEngine();
|
|
buildAndRunPasses();
|
|
|
|
union {
|
|
void *raw;
|
|
int (*usable)();
|
|
} GetGlobalFct;
|
|
GetGlobalFct.raw = LLVMGetPointerToGlobal(Engine, Function);
|
|
|
|
union {
|
|
void *raw;
|
|
void (*usable)(int);
|
|
} SetGlobalFct;
|
|
SetGlobalFct.raw = LLVMGetPointerToGlobal(Engine, Function2);
|
|
|
|
SetGlobalFct.usable(789);
|
|
EXPECT_EQ(789, GetGlobalFct.usable());
|
|
EXPECT_LE(MM->UsedCodeSize, MM->ReservedCodeSize);
|
|
EXPECT_LE(MM->UsedDataSizeRO, MM->ReservedDataSizeRO);
|
|
EXPECT_LE(MM->UsedDataSizeRW, MM->ReservedDataSizeRW);
|
|
EXPECT_TRUE(MM->UsedCodeSize > 0);
|
|
EXPECT_TRUE(MM->UsedDataSizeRW > 0);
|
|
}
|
|
|
|
TEST_F(MCJITCAPITest, yield) {
|
|
SKIP_UNSUPPORTED_PLATFORM;
|
|
|
|
buildSimpleFunction();
|
|
buildMCJITOptions();
|
|
buildMCJITEngine();
|
|
LLVMContextRef C = LLVMGetGlobalContext();
|
|
LLVMContextSetYieldCallback(C, yield, nullptr);
|
|
buildAndRunPasses();
|
|
|
|
union {
|
|
void *raw;
|
|
int (*usable)();
|
|
} functionPointer;
|
|
functionPointer.raw = LLVMGetPointerToGlobal(Engine, Function);
|
|
|
|
EXPECT_EQ(42, functionPointer.usable());
|
|
EXPECT_TRUE(didCallYield);
|
|
}
|
|
|