public override BlockCodegen Emit(BasicBlockBuilder BasicBlock)
{
var delegateAndBlock = Delegate.Emit(BasicBlock);
BasicBlock = delegateAndBlock.BasicBlock;
var methodTypeAllocBlock = (CodeBlock)codeGen.Allocate(
new StaticCastExpression(
LLVMCodeGenerator.ToExpression(
new ConstantBlock(codeGen, PrimitiveTypes.UInt64, SizeOf(DelegateBlock.MethodTypeLayout))),
PrimitiveTypes.UInt64),
Type).Emit(codeGen);
var methodTypeAllocCodegen = methodTypeAllocBlock.Emit(BasicBlock);
BasicBlock = methodTypeAllocCodegen.BasicBlock;
BuildStore(
BasicBlock.Builder,
AtAddressEmitVariable.BuildConstantLoad(
BasicBlock.Builder,
BuildBitCast(
BasicBlock.Builder,
delegateAndBlock.Value,
PointerType(DelegateBlock.MethodTypeLayout, 0),
"delegate_ptr"),
"delegate_data"),
methodTypeAllocCodegen.Value);
BuildStore(
BasicBlock.Builder,
TypeVTableBlock.BuildTypeVTable(BasicBlock, Type),
BuildStructGEP(BasicBlock.Builder, methodTypeAllocCodegen.Value, 0, "vtable_ptr_ptr"));
return(new BlockCodegen(BasicBlock, methodTypeAllocCodegen.Value));
}
public override BlockCodegen Emit(BasicBlockBuilder BasicBlock)
{
var targetAndBlock = InvocationBlock.EmitTarget(BasicBlock, Target);
BasicBlock = targetAndBlock.BasicBlock;
var calleeAndBlock = InvocationBlock.EmitCallee(BasicBlock, targetAndBlock.Value, Callee, Op);
BasicBlock = calleeAndBlock.BasicBlock;
var methodTypeAllocBlock = (CodeBlock)codeGen.Allocate(
new StaticCastExpression(
LLVMCodeGenerator.ToExpression(
new ConstantBlock(codeGen, PrimitiveTypes.UInt64, SizeOf(MethodTypeLayout))),
PrimitiveTypes.UInt64),
Type).Emit(codeGen);
var methodTypeAllocCodegen = methodTypeAllocBlock.Emit(BasicBlock);
BasicBlock = methodTypeAllocCodegen.BasicBlock;
BuildStore(
BasicBlock.Builder,
TypeVTableBlock.BuildTypeVTable(BasicBlock, Type),
BuildStructGEP(BasicBlock.Builder, methodTypeAllocCodegen.Value, 0, "vtable_ptr_ptr"));
bool hasContext = targetAndBlock.Value.Pointer != IntPtr.Zero;
if (hasContext)
{
BuildStore(
BasicBlock.Builder,
BuildBitCast(
BasicBlock.Builder,
targetAndBlock.Value,
PointerType(Int8Type(), 0),
"context_obj"),
BuildStructGEP(
BasicBlock.Builder,
methodTypeAllocCodegen.Value,
1,
"context_obj_ptr"));
}
BuildStore(
BasicBlock.Builder,
BuildBitCast(
BasicBlock.Builder,
calleeAndBlock.Value,
PointerType(Int8Type(), 0),
"opaque_func_ptr"),
BuildStructGEP(
BasicBlock.Builder,
methodTypeAllocCodegen.Value,
2,
"func_ptr_ptr"));
BuildStore(
BasicBlock.Builder,
ConstInt(Int1Type(), hasContext ? 1ul : 0ul, false),
BuildStructGEP(BasicBlock.Builder, methodTypeAllocCodegen.Value, 3, "has_context_ptr"));
return(new BlockCodegen(BasicBlock, methodTypeAllocCodegen.Value));
}