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| //===--------------- OrcCAPITest.cpp - Unit tests Orc C API ---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "OrcTestCommon.h"
#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
#include "llvm-c/Core.h"
#include "llvm-c/OrcBindings.h"
#include "llvm-c/Target.h"
#include "llvm-c/TargetMachine.h"
#include "gtest/gtest.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
namespace llvm {
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(TargetMachine, LLVMTargetMachineRef)
class OrcCAPIExecutionTest : public testing::Test, public OrcExecutionTest {
protected:
std::unique_ptr<Module> createTestModule(const Triple &TT) {
ModuleBuilder MB(Context, TT.str(), "");
Type *IntTy = Type::getScalarTy<int>(Context);
Function *TestFunc =
MB.createFunctionDecl(FunctionType::get(IntTy, {}, false), "testFunc");
Function *Main = MB.createFunctionDecl(
FunctionType::get(
IntTy,
{IntTy, Type::getInt8PtrTy(Context)->getPointerTo()},
false),
"main");
Main->getBasicBlockList().push_back(BasicBlock::Create(Context));
IRBuilder<> B(&Main->back());
Value* Result = B.CreateCall(TestFunc);
B.CreateRet(Result);
return MB.takeModule();
}
std::unique_ptr<MemoryBuffer> createTestObject() {
orc::SimpleCompiler IRCompiler(*TM);
auto M = createTestModule(TM->getTargetTriple());
M->setDataLayout(TM->createDataLayout());
return IRCompiler(*M);
}
typedef int (*MainFnTy)();
static int myTestFuncImpl() {
return 42;
}
static char *testFuncName;
static uint64_t myResolver(const char *Name, void *Ctx) {
if (!strncmp(Name, testFuncName, 8))
return (uint64_t)&myTestFuncImpl;
return 0;
}
struct CompileContext {
CompileContext() : Compiled(false) { }
OrcCAPIExecutionTest* APIExecTest;
std::unique_ptr<Module> M;
LLVMOrcModuleHandle H;
bool Compiled;
};
static LLVMOrcTargetAddress myCompileCallback(LLVMOrcJITStackRef JITStack,
void *Ctx) {
CompileContext *CCtx = static_cast<CompileContext*>(Ctx);
auto *ET = CCtx->APIExecTest;
CCtx->M = ET->createTestModule(ET->TM->getTargetTriple());
LLVMOrcAddEagerlyCompiledIR(JITStack, &CCtx->H, wrap(CCtx->M.release()),
myResolver, nullptr);
CCtx->Compiled = true;
LLVMOrcTargetAddress MainAddr;
LLVMOrcGetSymbolAddress(JITStack, &MainAddr, "main");
LLVMOrcSetIndirectStubPointer(JITStack, "foo", MainAddr);
return MainAddr;
}
};
char *OrcCAPIExecutionTest::testFuncName = nullptr;
TEST_F(OrcCAPIExecutionTest, TestEagerIRCompilation) {
if (!SupportsJIT)
return;
LLVMOrcJITStackRef JIT =
LLVMOrcCreateInstance(wrap(TM.get()));
std::unique_ptr<Module> M = createTestModule(TM->getTargetTriple());
LLVMOrcGetMangledSymbol(JIT, &testFuncName, "testFunc");
LLVMOrcModuleHandle H;
LLVMOrcAddEagerlyCompiledIR(JIT, &H, wrap(M.release()), myResolver, nullptr);
// get symbol address searching the entire stack
{
LLVMOrcTargetAddress MainAddr;
LLVMOrcGetSymbolAddress(JIT, &MainAddr, "main");
MainFnTy MainFn = (MainFnTy)MainAddr;
int Result = MainFn();
EXPECT_EQ(Result, 42)
<< "Eagerly JIT'd code did not return expected result";
}
// and then just searching a single handle
{
LLVMOrcTargetAddress MainAddr;
LLVMOrcGetSymbolAddressIn(JIT, &MainAddr, H, "main");
MainFnTy MainFn = (MainFnTy)MainAddr;
int Result = MainFn();
EXPECT_EQ(Result, 42)
<< "Eagerly JIT'd code did not return expected result";
}
LLVMOrcRemoveModule(JIT, H);
LLVMOrcDisposeMangledSymbol(testFuncName);
LLVMOrcDisposeInstance(JIT);
}
TEST_F(OrcCAPIExecutionTest, TestLazyIRCompilation) {
if (!SupportsIndirection)
return;
LLVMOrcJITStackRef JIT =
LLVMOrcCreateInstance(wrap(TM.get()));
std::unique_ptr<Module> M = createTestModule(TM->getTargetTriple());
LLVMOrcGetMangledSymbol(JIT, &testFuncName, "testFunc");
LLVMOrcModuleHandle H;
LLVMOrcAddLazilyCompiledIR(JIT, &H, wrap(M.release()), myResolver, nullptr);
LLVMOrcTargetAddress MainAddr;
LLVMOrcGetSymbolAddress(JIT, &MainAddr, "main");
MainFnTy MainFn = (MainFnTy)MainAddr;
int Result = MainFn();
EXPECT_EQ(Result, 42)
<< "Lazily JIT'd code did not return expected result";
LLVMOrcRemoveModule(JIT, H);
LLVMOrcDisposeMangledSymbol(testFuncName);
LLVMOrcDisposeInstance(JIT);
}
TEST_F(OrcCAPIExecutionTest, TestAddObjectFile) {
if (!SupportsJIT)
return;
auto ObjBuffer = createTestObject();
LLVMOrcJITStackRef JIT =
LLVMOrcCreateInstance(wrap(TM.get()));
LLVMOrcGetMangledSymbol(JIT, &testFuncName, "testFunc");
LLVMOrcModuleHandle H;
LLVMOrcAddObjectFile(JIT, &H, wrap(ObjBuffer.release()), myResolver, nullptr);
LLVMOrcTargetAddress MainAddr;
LLVMOrcGetSymbolAddress(JIT, &MainAddr, "main");
MainFnTy MainFn = (MainFnTy)MainAddr;
int Result = MainFn();
EXPECT_EQ(Result, 42)
<< "Lazily JIT'd code did not return expected result";
LLVMOrcRemoveModule(JIT, H);
LLVMOrcDisposeMangledSymbol(testFuncName);
LLVMOrcDisposeInstance(JIT);
}
TEST_F(OrcCAPIExecutionTest, TestDirectCallbacksAPI) {
if (!SupportsIndirection)
return;
LLVMOrcJITStackRef JIT =
LLVMOrcCreateInstance(wrap(TM.get()));
LLVMOrcGetMangledSymbol(JIT, &testFuncName, "testFunc");
CompileContext C;
C.APIExecTest = this;
LLVMOrcTargetAddress CCAddr;
LLVMOrcCreateLazyCompileCallback(JIT, &CCAddr, myCompileCallback, &C);
LLVMOrcCreateIndirectStub(JIT, "foo", CCAddr);
LLVMOrcTargetAddress MainAddr;
LLVMOrcGetSymbolAddress(JIT, &MainAddr, "foo");
MainFnTy FooFn = (MainFnTy)MainAddr;
int Result = FooFn();
EXPECT_TRUE(C.Compiled)
<< "Function wasn't lazily compiled";
EXPECT_EQ(Result, 42)
<< "Direct-callback JIT'd code did not return expected result";
C.Compiled = false;
FooFn();
EXPECT_FALSE(C.Compiled)
<< "Direct-callback JIT'd code was JIT'd twice";
LLVMOrcRemoveModule(JIT, C.H);
LLVMOrcDisposeMangledSymbol(testFuncName);
LLVMOrcDisposeInstance(JIT);
}
} // namespace llvm
|