Method LLString

ir/func.go:122–151

LLString returns the LLVM syntax representation of the function definition or declaration. Function declaration. 'declare' Metadata=MetadataAttachment* Header=FuncHeader Function definition. 'define' Header=FuncHeader Metadata=MetadataAttachment* Body=FuncBody

()

//
//    'define' Header=FuncHeader Metadata=MetadataAttachment* Body=FuncBody
func (f *Func) LLString() string {
	if err := f.AssignIDs(); err != nil {
		panic(fmt.Errorf("unable to assign IDs of function %q; %v", f.Ident(), err))
	}
	buf := &strings.Builder{}
	if len(f.Blocks) == 0 {
		// Function declaration.
		buf.WriteString("declare")
		for _, md := range f.Metadata {
			fmt.Fprintf(buf, " %s", md)
		}
		if f.Linkage != enum.LinkageNone {
			fmt.Fprintf(buf, " %s", f.Linkage)
		}
		buf.WriteString(headerString(f))
		return buf.String()
	} else {
		// Function definition.
		buf.WriteString("define")
		if f.Linkage != enum.LinkageNone {
			fmt.Fprintf(buf, " %s", f.Linkage)
		}
		buf.WriteString(headerString(f))
		for _, md := range f.Metadata {
			fmt.Fprintf(buf, " %s", md)
		}
		fmt.Fprintf(buf, " %s", bodyString(f))
		return buf.String()
	}
}

// AssignIDs assigns IDs to unnamed local variables.
func (f *Func) AssignIDs() error {