public void TestORC()
{
LLVM.InitializeAllTargets();
LLVM.InitializeAllTargetMCs();
LLVM.InitializeAllTargetInfos();
LLVM.InitializeAllAsmPrinters();
// See http://www.doof.me.uk/2017/05/11/using-orc-with-llvms-c-api/
ModuleRef mod = LLVM.ModuleCreateWithName("LLVMSharpIntro");
TypeRef[] param_types = { LLVM.Int32Type(), LLVM.Int32Type() };
TypeRef ret_type = LLVM.FunctionType(LLVM.Int32Type(), param_types, false);
ValueRef sum = LLVM.AddFunction(mod, "sum", ret_type);
BasicBlockRef entry = LLVM.AppendBasicBlock(sum, "entry");
BuilderRef builder = LLVM.CreateBuilder();
LLVM.PositionBuilderAtEnd(builder, entry);
ValueRef tmp = LLVM.BuildAdd(builder, LLVM.GetParam(sum, 0), LLVM.GetParam(sum, 1), "tmp");
LLVM.BuildRet(builder, tmp);
MyString the_error = new MyString();
LLVM.VerifyModule(mod, VerifierFailureAction.AbortProcessAction, the_error);
//LLVM.DisposeMessage(error);
TargetRef t2;
string tr2 = LLVM.GetDefaultTargetTriple();
var b = LLVM.GetTargetFromTriple(tr2, out t2, the_error);
string triple = "";
string cpu = "";
string features = "";
TargetMachineRef tmr = LLVM.CreateTargetMachine(t2, tr2, cpu, features,
CodeGenOptLevel.CodeGenLevelDefault,
RelocMode.RelocDefault,
CodeModel.CodeModelDefault);
OrcJITStackRef ojsr = LLVM.OrcCreateInstance(tmr);
MyString ms = new MyString();
LLVM.OrcGetMangledSymbol(ojsr, ms, "sum");
IntPtr ctx = IntPtr.Zero;
SharedModuleRef smr = LLVM.OrcMakeSharedModule(mod);
OrcErrorCode xx = LLVM.OrcAddLazilyCompiledIR(ojsr, out uint omh, smr, null, ctx);
OrcErrorCode p = LLVM.OrcGetSymbolAddress(ojsr, out IntPtr RetAddr, "sum");
Add addMethod = (Add)Marshal.GetDelegateForFunctionPointer(RetAddr, typeof(Add));
int result = addMethod(10, 10);
Console.WriteLine("Result of sum is: " + result);
if (result != 20)
{
throw new Exception("Failed.");
}
LLVM.DumpModule(mod);
LLVM.DisposeBuilder(builder);
}
public void TestMultiModules()
{
LLVM.InitializeAllTargets();
LLVM.InitializeAllTargetMCs();
LLVM.InitializeAllTargetInfos();
LLVM.InitializeAllAsmPrinters();
// First module contains add.
ModuleRef mod1 = LLVM.ModuleCreateWithName("LLVMSharpIntro");
TypeRef[] param_types1 = { LLVM.Int32Type(), LLVM.Int32Type() };
TypeRef ret_type1 = LLVM.FunctionType(LLVM.Int32Type(), param_types1, false);
ValueRef add = LLVM.AddFunction(mod1, "add", ret_type1);
BasicBlockRef entry1 = LLVM.AppendBasicBlock(add, "entry");
BuilderRef builder1 = LLVM.CreateBuilder();
LLVM.PositionBuilderAtEnd(builder1, entry1);
ValueRef tmp1 = LLVM.BuildAdd(builder1, LLVM.GetParam(add, 0), LLVM.GetParam(add, 1), "tmp");
LLVM.BuildRet(builder1, tmp1);
MyString the_error = new MyString();
LLVM.VerifyModule(mod1, VerifierFailureAction.PrintMessageAction, the_error);
LLVM.DumpModule(mod1);
// Second module contains sub.
ModuleRef mod2 = LLVM.ModuleCreateWithName("LLVMSharpIntro");
TypeRef[] param_types2 = { LLVM.Int32Type(), LLVM.Int32Type() };
TypeRef ret_type2 = LLVM.FunctionType(LLVM.Int32Type(), param_types2, false);
ValueRef sub = LLVM.AddFunction(mod2, "sub", ret_type2);
BasicBlockRef entry2 = LLVM.AppendBasicBlock(sub, "entry");
BuilderRef builder2 = LLVM.CreateBuilder();
LLVM.PositionBuilderAtEnd(builder2, entry2);
ValueRef tmp2 = LLVM.BuildSub(builder2, LLVM.GetParam(sub, 0), LLVM.GetParam(sub, 1), "tmp");
LLVM.BuildRet(builder2, tmp2);
LLVM.VerifyModule(mod2, VerifierFailureAction.PrintMessageAction, the_error);
LLVM.DumpModule(mod2);
// Third module contains uses of add and sub.
ModuleRef mod3 = LLVM.ModuleCreateWithName("LLVMSharpIntro");
TypeRef[] param_types3 = { };
TypeRef ret_type3 = LLVM.FunctionType(LLVM.Int32Type(), param_types3, false);
ValueRef comb = LLVM.AddFunction(mod3, "comb", ret_type3);
ValueRef add1 = LLVM.AddFunction(mod3, "add", ret_type1);
ValueRef sub2 = LLVM.AddFunction(mod3, "sub", ret_type1);
BasicBlockRef entry3 = LLVM.AppendBasicBlock(comb, "entry");
BuilderRef builder3 = LLVM.CreateBuilder();
LLVM.PositionBuilderAtEnd(builder3, entry3);
ValueRef tmpa3 = LLVM.ConstInt(LLVM.Int32Type(), 1, false);
ValueRef tmpb3 = LLVM.ConstInt(LLVM.Int32Type(), 2, false);
ValueRef tmpc3 = LLVM.ConstInt(LLVM.Int32Type(), 3, false);
var tmpd3 = LLVM.BuildCall(builder3, add1, new ValueRef[] { tmpa3, tmpc3 }, "");
var tmpe3 = LLVM.BuildCall(builder3, sub2, new ValueRef[] { tmpd3, tmpb3 }, "");
LLVM.BuildRet(builder3, tmpe3);
LLVM.VerifyModule(mod3, VerifierFailureAction.PrintMessageAction, the_error);
LLVM.DumpModule(mod3);
//LLVM.DisposeMessage(error);
TargetRef t2;
string tr2 = LLVM.GetDefaultTargetTriple();
var b = LLVM.GetTargetFromTriple(tr2, out t2, the_error);
string triple = "";
string cpu = "";
string features = "";
TargetMachineRef tmr = LLVM.CreateTargetMachine(t2, tr2, cpu, features,
CodeGenOptLevel.CodeGenLevelDefault,
RelocMode.RelocDefault,
CodeModel.CodeModelDefault);
OrcJITStackRef ojsr = LLVM.OrcCreateInstance(tmr);
MyString ms = new MyString();
LLVM.OrcGetMangledSymbol(ojsr, ms, "comb");
IntPtr ctx = IntPtr.Zero;
SharedModuleRef smr1 = LLVM.OrcMakeSharedModule(mod1);
var xx = LLVM.OrcAddLazilyCompiledIR(ojsr, out uint omh1, smr1, null, ctx);
SharedModuleRef smr2 = LLVM.OrcMakeSharedModule(mod2);
xx = LLVM.OrcAddLazilyCompiledIR(ojsr, out uint omh2, smr2, null, ctx);
SharedModuleRef smr3 = LLVM.OrcMakeSharedModule(mod3);
xx = LLVM.OrcAddLazilyCompiledIR(ojsr, out uint omh3, smr3, null, ctx);
var p = LLVM.OrcGetSymbolAddress(ojsr, out IntPtr RetAddr, "comb");
Comb combMethod = (Comb)Marshal.GetDelegateForFunctionPointer(RetAddr, typeof(Comb));
int result = combMethod();
Console.WriteLine("Result of comb is: " + result);
if (result != 2)
{
throw new Exception();
}
}
