public static IntPtr GetBclType(Type type)
{
// Using the BCL, find the type. Note, Mono has a tendency to list something
// in a namespace in which the type's metadata says it has no namespace.
// As far as I can tell, this is for generated methods corresponding to the kernels.
// Due to the disparity of what the "namespace" means, look up the type from
// the top-most declaring type, and use that as context for the sub-class search.
Stack <Type> chain = new Stack <Type>();
while (type != null)
{
chain.Push(type);
type = type.DeclaringType;
}
System.IntPtr result = System.IntPtr.Zero;
while (chain.Any())
{
var tr = chain.Pop();
var mt = RUNTIME.RewriteType(tr.ToMonoTypeReference());
var assembly_name = tr.Module.Name;
var name_space = tr.Namespace;
var name = tr.Name;
result = BclGetMetaOfType(assembly_name, name_space, name, result);
}
return(result);
}
public static TypeReference FindBCLType(System.Type type)
{
var runtime = new RUNTIME();
TypeReference result = null;
Mono.Cecil.ModuleDefinition md = Mono.Cecil.ModuleDefinition.ReadModule(FindCoreLib());
foreach (var bcl_type in md.GetTypes())
{
if (bcl_type.FullName == type.FullName)
{
return(bcl_type);
}
}
return(result);
}
private MethodDefinition Rewrite(MethodReference method_reference)
{
// Perform any substitution of this method reference.
MethodReference new_method_reference = RUNTIME.SubstituteMethod(method_reference);
method_reference = new_method_reference != null ? new_method_reference : method_reference;
MethodDefinition method_definition = method_reference.Resolve();
// Perform any substitutions of individual instructions.
if (!(method_definition == null || method_definition.Body == null))
{
RUNTIME.RewriteCilCodeBlock(method_definition.Body);
}
// Return method definition for further analysis.
return(method_definition);
}
public static void Initialize()
{
// Load C# library for BCL, and grab all types and methods.
// The tables that this method sets up are:
// _substituted_bcl -- maps types in program (represented in Mono.Cecil) into GPU BCL types (represented in Mono.Cecil).
// _system_type_to_mono_type_for_bcl -- associates types in GPU BCL with NET Core/NET Framework/... in user program.
// Note, there seems to be an underlying bug in System.Type.GetType for certain generics, like System.Collections.Generic.HashSet.
// The method returns null.
var xx = typeof(System.Collections.Generic.HashSet <>);
var x2 = typeof(System.Collections.Generic.HashSet <int>);
var yy = System.Type.GetType("System.Collections.Generic.HashSet");
var y2 = System.Type.GetType("System.Collections.Generic.HashSet<>");
var y3 = System.Type.GetType("System.Collections.Generic.HashSet`1");
var y4 = System.Type.GetType("System.Collections.Generic.HashSet<T>");
var y5 = System.Type.GetType(xx.FullName);
var y6 = System.Type.GetType(@"System.Collections.Generic.HashSet`1[System.Int32]");
var y7 = System.Type.GetType(@"System.Collections.Generic.Dictionary`2[System.String,System.String]");
var y8 = System.Type.GetType(x2.FullName);
// Set up _substituted_bcl.
var runtime = new RUNTIME();
// Find corlib.dll. It could be anywhere, but let's check the usual spots.
Mono.Cecil.ModuleDefinition md = Mono.Cecil.ModuleDefinition.ReadModule(FindCoreLib());
foreach (var bcl_type in md.GetTypes())
{
// Filter out <Module> and <PrivateImplementationDetails>, among possible others.
Regex regex = new Regex(@"^[<]\w+[>]");
if (regex.IsMatch(bcl_type.FullName))
{
continue;
}
// Try to map the type into native NET type. Some things just won't.
var t_system_type = System.Type.GetType(bcl_type.FullName);
if (t_system_type == null)
{
continue;
}
var to_mono = t_system_type.ToMonoTypeReference();
// Add entry for converting intrinsic NET BCL type to GPU BCL type.
_substituted_bcl.Add(to_mono, bcl_type);
foreach (var m in bcl_type.Methods)
{
var x = m.ImplAttributes;
if ((x & MethodImplAttributes.InternalCall) != 0)
{
if (Campy.Utils.Options.IsOn("runtime_trace"))
{
System.Console.WriteLine("Internal call set up " + bcl_type + " " + m);
}
_internalCalls.Add(new BclNativeMethod(bcl_type, m));
}
}
}
// Set up _system_type_to_mono_type_for_bcl.
// There really isn't any good way to set this up because NET Core System.Reflection does not work
// on .LIB files. So begins the kludge...
// Parse PTX files for all "visible" functions, and create LLVM declarations.
// For "Internal Calls", these functions appear here, but also on the _internalCalls list.
var assembly = Assembly.GetAssembly(typeof(Campy.Compiler.RUNTIME));
var resource_names = assembly.GetManifestResourceNames();
foreach (var resource_name in resource_names)
{
using (Stream stream = assembly.GetManifestResourceStream(resource_name))
using (StreamReader reader = new StreamReader(stream))
{
string gpu_bcl_ptx = reader.ReadToEnd();
// Parse the PTX for ".visible" functions, and enter each in
// the runtime table.
// This should match ".visible" <spaces> ".func" <spaces> <function-return>? <function-name>
// over many lines, many times.
Regex regex = new Regex(
@"\.visible\s+\.func\s+(?<return>[(][^)]*[)]\s+)?(?<name>\w+)\s*(?<params>[(][^)]*[)]\s+)");
foreach (Match match in regex.Matches(gpu_bcl_ptx))
{
Regex space = new Regex(@"\s\s+");
string mangled_name = match.Groups["name"].Value.Trim();
string return_type = match.Groups["return"].Value.Trim();
return_type = space.Replace(return_type, " ");
string parameters = match.Groups["params"].Value.Trim();
parameters = space.Replace(parameters, " ");
if (Campy.Utils.Options.IsOn("runtime_trace"))
{
System.Console.WriteLine(mangled_name + " " + return_type + " " + parameters);
}
if (JITER.functions_in_internal_bcl_layer.ContainsKey(mangled_name))
{
continue;
}
TypeRef llvm_return_type = default(TypeRef);
TypeRef[] args;
// Construct LLVM extern that corresponds to type of function.
// Parse return_type and parameters strings...
Regex param_regex = new Regex(@"\.param(\s+\.align\s+\d+)?\s+(?<type>\S+)\s");
{
// parse return.
if (return_type == "")
{
llvm_return_type = LLVM.VoidType();
}
else
{
foreach (Match ret in param_regex.Matches(return_type))
{
var x = ret.Groups["type"].Value;
_ptx_type_to_llvm_typeref.TryGetValue(
x, out TypeRef y);
if (Campy.Utils.Options.IsOn("runtime_trace"))
{
System.Console.WriteLine("name " + x + " value " + y.ToString());
}
llvm_return_type = y;
}
}
}
{
// parse parameters.
List <TypeRef> args_list = new List <TypeRef>();
foreach (Match ret in param_regex.Matches(parameters))
{
var x = ret.Groups["type"].Value;
if (!_ptx_type_to_llvm_typeref.TryGetValue(
x, out TypeRef y))
{
throw new Exception("Unknown type syntax in ptx parameter.");
}
if (Campy.Utils.Options.IsOn("runtime_trace"))
{
System.Console.Write("parameter ");
System.Console.WriteLine("name " + x + " value " + y.ToString());
}
args_list.Add(y);
}
args = args_list.ToArray();
}
var decl = LLVM.AddFunction(
JITER.global_llvm_module,
mangled_name,
LLVM.FunctionType(
llvm_return_type,
args,
false));
PtxFunction ptxf = new PtxFunction(mangled_name, decl);
if (Campy.Utils.Options.IsOn("runtime_trace"))
{
System.Console.WriteLine(ptxf._mangled_name
+ " "
+ ptxf._short_name
+ " "
+ ptxf._valueref);
}
JITER.functions_in_internal_bcl_layer.Add(mangled_name, decl);
_ptx_functions.Add(ptxf);
}
}
}
}
