#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"
-#include "llvm/Support/Debug.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,
LLVMBool isReadOnly) {
+ if (!strcmp(sectionName, "__compact_unwind"))
+ didAllocateCompactUnwindSection = true;
return static_cast<SectionMemoryManager*>(object)->allocateDataSection(
size, alignment, sectionID, sectionName, isReadOnly);
}
delete static_cast<SectionMemoryManager*>(object);
}
+static void yield(LLVMContextRef, void *) {
+ didCallYield = true;
+}
+
namespace {
// memory manager to test reserve allocation space callback
ReservedCodeSize(0), UsedCodeSize(0), ReservedDataSizeRO(0),
UsedDataSizeRO(0), ReservedDataSizeRW(0), UsedDataSizeRW(0) {
}
-
- virtual bool needsToReserveAllocationSpace() {
- return true;
- }
- virtual void reserveAllocationSpace(
- uintptr_t CodeSize, uintptr_t DataSizeRO, uintptr_t DataSizeRW) {
+ bool needsToReserveAllocationSpace() override { return true; }
+
+ void reserveAllocationSpace(uintptr_t CodeSize, uintptr_t DataSizeRO,
+ uintptr_t DataSizeRW) override {
ReservedCodeSize = CodeSize;
ReservedDataSizeRO = DataSizeRO;
ReservedDataSizeRW = DataSizeRW;
*UsedSize = AlignedBegin + AlignedSize;
}
- virtual uint8_t* allocateDataSection(uintptr_t Size, unsigned Alignment,
- unsigned SectionID, StringRef SectionName, bool IsReadOnly) {
+ 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) {
+ uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
+ unsigned SectionID,
+ StringRef SectionName) override {
useSpace(&UsedCodeSize, Size, Alignment);
return SectionMemoryManager::allocateCodeSection(Size, Alignment,
SectionID, SectionName);
SupportedArchs.push_back(Triple::aarch64);
SupportedArchs.push_back(Triple::arm);
SupportedArchs.push_back(Triple::mips);
+ SupportedArchs.push_back(Triple::mips64);
+ SupportedArchs.push_back(Triple::mips64el);
SupportedArchs.push_back(Triple::x86);
SupportedArchs.push_back(Triple::x86_64);
// The operating systems below are known to be sufficiently incompatible
// that they will fail the MCJIT C API tests.
- UnsupportedOSs.push_back(Triple::Cygwin);
+ UnsupportedEnvironments.push_back(Triple::Cygnus);
}
-
- virtual void SetUp() {
+
+ void SetUp() override {
didCallAllocateCodeSection = false;
- Module = 0;
- Function = 0;
- Engine = 0;
- Error = 0;
+ didAllocateCompactUnwindSection = false;
+ didCallYield = false;
+ Module = nullptr;
+ Function = nullptr;
+ Engine = nullptr;
+ Error = nullptr;
}
-
- virtual void TearDown() {
+
+ void TearDown() override {
if (Engine)
LLVMDisposeExecutionEngine(Engine);
else if (Module)
LLVMSetTarget(Module, HostTriple.c_str());
- Function = LLVMAddFunction(
- Module, "simple_function", LLVMFunctionType(LLVMInt32Type(), 0, 0, 0));
+ Function = LLVMAddFunction(Module, "simple_function",
+ LLVMFunctionType(LLVMInt32Type(), nullptr,0, 0));
LLVMSetFunctionCallConv(Function, LLVMCCallConv);
LLVMBasicBlockRef entry = LLVMAppendBasicBlock(Function, "entry");
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");
LLVMSetInitializer(GlobalVar, LLVMConstInt(LLVMInt32Type(), 42, 0));
{
- Function = LLVMAddFunction(
- Module, "getGlobal", LLVMFunctionType(LLVMInt32Type(), 0, 0, 0));
+ Function = LLVMAddFunction(Module, "getGlobal",
+ LLVMFunctionType(LLVMInt32Type(), nullptr, 0, 0));
LLVMSetFunctionCallConv(Function, LLVMCCallConv);
LLVMBasicBlockRef Entry = LLVMAppendBasicBlock(Function, "entry");
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;
buildMCJITOptions();
buildMCJITEngine();
buildAndRunPasses();
-
- union {
- void *raw;
- int (*usable)();
- } functionPointer;
- functionPointer.raw = LLVMGetPointerToGlobal(Engine, Function);
-
- EXPECT_EQ(42, functionPointer.usable());
+
+ auto *functionPointer = reinterpret_cast<int (*)()>(
+ reinterpret_cast<uintptr_t>(LLVMGetPointerToGlobal(Engine, Function)));
+
+ EXPECT_EQ(42, functionPointer());
+}
+
+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) {
useRoundTripSectionMemoryManager();
buildMCJITEngine();
buildAndRunPasses();
+
+ auto *functionPointer = reinterpret_cast<int (*)()>(
+ reinterpret_cast<uintptr_t>(LLVMGetPointerToGlobal(Engine, Function)));
+
+ EXPECT_EQ(42, functionPointer());
+ EXPECT_TRUE(didCallAllocateCodeSection);
+}
+
+TEST_F(MCJITCAPITest, stackmap_creates_compact_unwind_on_darwin) {
+ SKIP_UNSUPPORTED_PLATFORM;
- union {
- void *raw;
- int (*usable)();
- } functionPointer;
- functionPointer.raw = LLVMGetPointerToGlobal(Engine, Function);
+ // This test is also not supported on non-x86 platforms.
+ if (Triple(HostTriple).getArch() != Triple::x86_64)
+ return;
- EXPECT_EQ(42, functionPointer.usable());
+ buildFunctionThatUsesStackmap();
+ buildMCJITOptions();
+ useRoundTripSectionMemoryManager();
+ buildMCJITEngine();
+ buildAndRunOptPasses();
+
+ auto *functionPointer = reinterpret_cast<int (*)()>(
+ reinterpret_cast<uintptr_t>(LLVMGetPointerToGlobal(Engine, Function)));
+
+ EXPECT_EQ(42, functionPointer());
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) {
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());
+
+ auto GetGlobalFct = reinterpret_cast<int (*)()>(
+ reinterpret_cast<uintptr_t>(LLVMGetPointerToGlobal(Engine, Function)));
+
+ auto SetGlobalFct = reinterpret_cast<void (*)(int)>(
+ reinterpret_cast<uintptr_t>(LLVMGetPointerToGlobal(Engine, Function2)));
+
+ SetGlobalFct(789);
+ EXPECT_EQ(789, GetGlobalFct());
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();
+
+ auto *functionPointer = reinterpret_cast<int (*)()>(
+ reinterpret_cast<uintptr_t>(LLVMGetPointerToGlobal(Engine, Function)));
+
+ EXPECT_EQ(42, functionPointer());
+ EXPECT_TRUE(didCallYield);
+}
+
+static int localTestFunc() {
+ return 42;
+}
+
+TEST_F(MCJITCAPITest, addGlobalMapping) {
+ SKIP_UNSUPPORTED_PLATFORM;
+
+ Module = LLVMModuleCreateWithName("testModule");
+ LLVMSetTarget(Module, HostTriple.c_str());
+ LLVMTypeRef FunctionType = LLVMFunctionType(LLVMInt32Type(), NULL, 0, 0);
+ LLVMValueRef MappedFn = LLVMAddFunction(Module, "mapped_fn", FunctionType);
+
+ Function = LLVMAddFunction(Module, "test_fn", FunctionType);
+ LLVMBasicBlockRef Entry = LLVMAppendBasicBlock(Function, "");
+ LLVMBuilderRef Builder = LLVMCreateBuilder();
+ LLVMPositionBuilderAtEnd(Builder, Entry);
+ LLVMValueRef RetVal = LLVMBuildCall(Builder, MappedFn, NULL, 0, "");
+ LLVMBuildRet(Builder, RetVal);
+ LLVMDisposeBuilder(Builder);
+
+ LLVMVerifyModule(Module, LLVMAbortProcessAction, &Error);
+ LLVMDisposeMessage(Error);
+
+ buildMCJITOptions();
+ buildMCJITEngine();
+
+ LLVMAddGlobalMapping(
+ Engine, MappedFn,
+ reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(&localTestFunc)));
+
+ buildAndRunPasses();
+
+ uint64_t raw = LLVMGetFunctionAddress(Engine, "test_fn");
+ int (*usable)() = (int (*)()) raw;
+
+ EXPECT_EQ(42, usable());
+}
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