Beispiel #1
0
// Debug intrinsic collectors.
func createGlobalVariableMetadata(global llvm.Value) llvm.DebugDescriptor {
	return &llvm.GlobalVariableDescriptor{
		Name:        global.Name(),
		DisplayName: global.Name(),
		//File:
		//Line:
		Type:  int32_debug_type, // FIXME
		Value: global}
}
Beispiel #2
0
// declare creates an llvm.dbg.declare call for the specified function
// parameter or local variable.
func (d *debugInfo) declare(b llvm.Builder, v ssa.Value, llv llvm.Value, paramIndex int) {
	tag := tagAutoVariable
	if paramIndex >= 0 {
		tag = tagArgVariable
	}
	ld := debug.NewLocalVariableDescriptor(tag)
	ld.Argument = uint32(paramIndex + 1)
	ld.Name = llv.Name()
	if file := d.Fset.File(v.Pos()); file != nil {
		ld.Line = uint32(file.Position(v.Pos()).Line)
		ld.File = &d.getCompileUnit(file).Path
	}
	ld.Type = d.TypeDebugDescriptor(deref(v.Type()))
	ld.Context = d.context()
	b.InsertDeclare(d.module, llvm.MDNode([]llvm.Value{llv}), d.MDNode(ld))
}
Beispiel #3
0
func (c *compiler) buildPtrRecvFunction(fn llvm.Value) llvm.Value {
	defer c.builder.SetInsertPointAtEnd(c.builder.GetInsertBlock())
	ifname := "*" + fn.Name()
	ifn := c.module.Module.NamedFunction(ifname)
	fntyp := fn.Type().ElementType()
	entry := llvm.AddBasicBlock(ifn, "entry")
	c.builder.SetInsertPointAtEnd(entry)
	args := ifn.Params()
	args[0] = c.builder.CreateLoad(args[0], "recv")
	result := c.builder.CreateCall(fn, args, "")
	if fntyp.ReturnType().TypeKind() == llvm.VoidTypeKind {
		c.builder.CreateRetVoid()
	} else {
		c.builder.CreateRet(result)
	}
	return ifn
}
Beispiel #4
0
func (d *debugInfo) pushFunctionContext(fnptr llvm.Value, sig *types.Signature, pos token.Pos) {
	subprog := &debug.SubprogramDescriptor{
		Name:        fnptr.Name(),
		DisplayName: fnptr.Name(),
		Function:    fnptr,
	}
	file := d.Fset.File(pos)
	cu := d.getCompileUnit(file)
	subprog.File = file.Name()
	subprog.Context = &cu.Path
	if file != nil {
		subprog.Line = uint32(file.Line(pos))
		subprog.ScopeLine = uint32(file.Line(pos)) // TODO(axw)
	}
	sigType := d.TypeDebugDescriptor(sig).(*debug.CompositeTypeDescriptor)
	subroutineType := sigType.Members[0]
	subprog.Type = subroutineType
	cu.Subprograms = append(cu.Subprograms, subprog)
	d.pushContext(subprog)
}
Beispiel #5
0
func (tm *TypeMap) interfaceFuncWrapper(f llvm.Value) llvm.Value {
	ftyp := f.Type().ElementType()
	paramTypes := ftyp.ParamTypes()
	recvType := paramTypes[0]
	paramTypes[0] = llvm.PointerType(llvm.Int8Type(), 0)
	newf := llvm.AddFunction(f.GlobalParent(), f.Name()+".ifn", llvm.FunctionType(
		ftyp.ReturnType(),
		paramTypes,
		ftyp.IsFunctionVarArg(),
	))

	b := llvm.GlobalContext().NewBuilder()
	defer b.Dispose()
	entry := llvm.AddBasicBlock(newf, "entry")
	b.SetInsertPointAtEnd(entry)
	args := make([]llvm.Value, len(paramTypes))
	for i := range paramTypes {
		args[i] = newf.Param(i)
	}

	recvBits := int(tm.target.TypeSizeInBits(recvType))
	if recvBits > 0 {
		args[0] = b.CreatePtrToInt(args[0], tm.target.IntPtrType(), "")
		if args[0].Type().IntTypeWidth() > recvBits {
			args[0] = b.CreateTrunc(args[0], llvm.IntType(recvBits), "")
		}
		args[0] = coerce(b, args[0], recvType)
	} else {
		args[0] = llvm.ConstNull(recvType)
	}

	result := b.CreateCall(f, args, "")
	if result.Type().TypeKind() == llvm.VoidTypeKind {
		b.CreateRetVoid()
	} else {
		b.CreateRet(result)
	}
	return newf
}