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https://github.com/YosysHQ/yosys
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add generic writer class with formatting function to FunctionalTools
This commit is contained in:
Emily Schmidt
parent
32cdf25838
commit
9700df50d6
4 changed files with 203 additions and 160 deletions
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@ -56,17 +56,7 @@ struct CxxType {
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}
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};
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struct CxxWriter {
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std::ostream &f;
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CxxWriter(std::ostream &out) : f(out) {}
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void printf(const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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f << vstringf(fmt, va);
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va_end(va);
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}
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};
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using CxxWriter = FunctionalTools::Writer;
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struct CxxStruct {
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std::string name;
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@ -74,111 +64,85 @@ struct CxxStruct {
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FunctionalTools::Scope scope;
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CxxStruct(std::string name)
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: name(name), scope(illegal_characters, reserved_keywords) {
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scope.reserve("out");
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scope.reserve("dump");
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scope.reserve("fn");
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scope.reserve("visit");
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}
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void insert(IdString name, CxxType type) {
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scope(name);
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types.insert({name, type});
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}
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void print(CxxWriter &f) {
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f.printf("\tstruct %s {\n", name.c_str());
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f.print("\tstruct {} {{\n", name);
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for (auto p : types) {
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f.printf("\t\t%s %s;\n", p.second.to_string().c_str(), scope(p.first).c_str());
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f.print("\t\t{} {};\n", p.second.to_string(), scope(p.first));
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}
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f.printf("\n\t\ttemplate <typename T> void visit(T &&fn) {\n");
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f.print("\n\t\ttemplate <typename T> void visit(T &&fn) {{\n");
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for (auto p : types) {
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f.printf("\t\t\tfn(\"%s\", %s);\n", RTLIL::unescape_id(p.first).c_str(), scope(p.first).c_str());
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f.print("\t\t\tfn(\"{}\", {});\n", RTLIL::unescape_id(p.first), scope(p.first));
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}
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f.printf("\t\t}\n");
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f.printf("\t};\n\n");
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f.print("\t\t}}\n");
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f.print("\t}};\n\n");
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};
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std::string operator[](IdString field) {
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return scope(field);
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}
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};
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struct CxxTemplate {
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vector<std::variant<std::string, int>> _v;
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public:
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CxxTemplate(std::string fmt) {
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std::string buf;
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for(auto it = fmt.begin(); it != fmt.end(); it++){
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if(*it == '%'){
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it++;
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log_assert(it != fmt.end());
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if(*it == '%')
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buf += *it;
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else {
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log_assert(*it >= '0' && *it <= '9');
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_v.emplace_back(std::move(buf));
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_v.emplace_back((int)(*it - '0'));
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}
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}else
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buf += *it;
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}
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if(!buf.empty())
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_v.emplace_back(std::move(buf));
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}
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template<typename... Args> static std::string format(CxxTemplate fmt, Args&&... args) {
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vector<std::string> strs = {args...};
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std::string result;
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for(auto &v : fmt._v){
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if(std::string *s = std::get_if<std::string>(&v))
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result += *s;
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else if(int *i = std::get_if<int>(&v))
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result += strs[*i];
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else
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log_error("missing case");
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}
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return result;
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}
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};
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template<class NodeNames> struct CxxPrintVisitor {
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template<class NodePrinter> struct CxxPrintVisitor {
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using Node = FunctionalIR::Node;
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NodeNames np;
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CxxWriter &f;
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NodePrinter np;
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CxxStruct &input_struct;
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CxxStruct &state_struct;
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CxxPrintVisitor(NodeNames np, CxxStruct &input_struct, CxxStruct &state_struct) : np(np), input_struct(input_struct), state_struct(state_struct) { }
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template<class T> std::string arg_to_string(T n) { return std::to_string(n); }
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std::string arg_to_string(std::string n) { return n; }
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std::string arg_to_string(Node n) { return np(n); }
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template<typename... Args> std::string format(std::string fmt, Args&&... args) {
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return CxxTemplate::format(fmt, arg_to_string(args)...);
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CxxPrintVisitor(CxxWriter &f, NodePrinter np, CxxStruct &input_struct, CxxStruct &state_struct) : f(f), np(np), input_struct(input_struct), state_struct(state_struct) { }
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template<typename... Args> void print(const char *fmt, Args&&... args) {
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f.print_with(np, fmt, std::forward<Args>(args)...);
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}
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std::string buf(Node, Node n) { return np(n); }
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std::string slice(Node, Node a, int, int offset, int out_width) { return format("%0.slice<%2>(%1)", a, offset, out_width); }
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std::string zero_extend(Node, Node a, int, int out_width) { return format("%0.zero_extend<%1>()", a, out_width); }
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std::string sign_extend(Node, Node a, int, int out_width) { return format("%0.sign_extend<%1>()", a, out_width); }
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std::string concat(Node, Node a, int, Node b, int) { return format("%0.concat(%1)", a, b); }
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std::string add(Node, Node a, Node b, int) { return format("%0 + %1", a, b); }
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std::string sub(Node, Node a, Node b, int) { return format("%0 - %1", a, b); }
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std::string bitwise_and(Node, Node a, Node b, int) { return format("%0 & %1", a, b); }
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std::string bitwise_or(Node, Node a, Node b, int) { return format("%0 | %1", a, b); }
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std::string bitwise_xor(Node, Node a, Node b, int) { return format("%0 ^ %1", a, b); }
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std::string bitwise_not(Node, Node a, int) { return format("~%0", a); }
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std::string unary_minus(Node, Node a, int) { return format("-%0", a); }
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std::string reduce_and(Node, Node a, int) { return format("%0.all()", a); }
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std::string reduce_or(Node, Node a, int) { return format("%0.any()", a); }
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std::string reduce_xor(Node, Node a, int) { return format("%0.parity()", a); }
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std::string equal(Node, Node a, Node b, int) { return format("%0 == %1", a, b); }
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std::string not_equal(Node, Node a, Node b, int) { return format("%0 != %1", a, b); }
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std::string signed_greater_than(Node, Node a, Node b, int) { return format("%0.signed_greater_than(%1)", a, b); }
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std::string signed_greater_equal(Node, Node a, Node b, int) { return format("%0.signed_greater_equal(%1)", a, b); }
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std::string unsigned_greater_than(Node, Node a, Node b, int) { return format("%0 > %1", a, b); }
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std::string unsigned_greater_equal(Node, Node a, Node b, int) { return format("%0 >= %1", a, b); }
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std::string logical_shift_left(Node, Node a, Node b, int, int) { return format("%0 << %1", a, b); }
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std::string logical_shift_right(Node, Node a, Node b, int, int) { return format("%0 >> %1", a, b); }
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std::string arithmetic_shift_right(Node, Node a, Node b, int, int) { return format("%0.arithmetic_shift_right(%1)", a, b); }
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std::string mux(Node, Node a, Node b, Node s, int) { return format("%2.any() ? %1 : %0", a, b, s); }
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std::string pmux(Node, Node a, Node b, Node s, int, int) { return format("%0.pmux(%1, %2)", a, b, s); }
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std::string constant(Node, RTLIL::Const value) { return format("Signal<%0>(%1)", value.size(), value.as_int()); }
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std::string input(Node, IdString name) { return format("input.%0", input_struct[name]); }
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std::string state(Node, IdString name) { return format("current_state.%0", state_struct[name]); }
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std::string memory_read(Node, Node mem, Node addr, int, int) { return format("%0.read(%1)", mem, addr); }
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std::string memory_write(Node, Node mem, Node addr, Node data, int, int) { return format("%0.write(%1, %2)", mem, addr, data); }
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std::string undriven(Node, int width) { return format("Signal<%0>(0)", width); }
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void buf(Node, Node n) { print("{}", n); }
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void slice(Node, Node a, int, int offset, int out_width) { print("{0}.slice<{2}>({1})", a, offset, out_width); }
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void zero_extend(Node, Node a, int, int out_width) { print("{}.zero_extend<{}>()", a, out_width); }
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void sign_extend(Node, Node a, int, int out_width) { print("{}.sign_extend<{}>()", a, out_width); }
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void concat(Node, Node a, int, Node b, int) { print("{}.concat({})", a, b); }
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void add(Node, Node a, Node b, int) { print("{} + {}", a, b); }
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void sub(Node, Node a, Node b, int) { print("{} - {}", a, b); }
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void bitwise_and(Node, Node a, Node b, int) { print("{} & {}", a, b); }
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void bitwise_or(Node, Node a, Node b, int) { print("{} | {}", a, b); }
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void bitwise_xor(Node, Node a, Node b, int) { print("{} ^ {}", a, b); }
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void bitwise_not(Node, Node a, int) { print("~{}", a); }
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void unary_minus(Node, Node a, int) { print("-{}", a); }
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void reduce_and(Node, Node a, int) { print("{}.all()", a); }
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void reduce_or(Node, Node a, int) { print("{}.any()", a); }
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void reduce_xor(Node, Node a, int) { print("{}.parity()", a); }
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void equal(Node, Node a, Node b, int) { print("{} == {}", a, b); }
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void not_equal(Node, Node a, Node b, int) { print("{} != {}", a, b); }
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void signed_greater_than(Node, Node a, Node b, int) { print("{}.signed_greater_than({})", a, b); }
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void signed_greater_equal(Node, Node a, Node b, int) { print("{}.signed_greater_equal({})", a, b); }
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void unsigned_greater_than(Node, Node a, Node b, int) { print("{} > {}", a, b); }
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void unsigned_greater_equal(Node, Node a, Node b, int) { print("{} >= {}", a, b); }
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void logical_shift_left(Node, Node a, Node b, int, int) { print("{} << {}", a, b); }
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void logical_shift_right(Node, Node a, Node b, int, int) { print("{} >> {}", a, b); }
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void arithmetic_shift_right(Node, Node a, Node b, int, int) { print("{}.arithmetic_shift_right{})", a, b); }
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void mux(Node, Node a, Node b, Node s, int) { print("{2}.any() ? {1} : {0}", a, b, s); }
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void pmux(Node, Node a, Node b, Node s, int, int) { print("{0}.pmux({1}, {2})", a, b, s); }
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void constant(Node, RTLIL::Const value) {
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std::stringstream ss;
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bool multiple = value.size() > 32;
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ss << "Signal<" << value.size() << ">(" << std::hex << std::showbase;
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if(multiple) ss << "{";
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while(value.size() > 32) {
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ss << value.as_int() << ", ";
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value = value.extract(32, value.size() - 32);
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}
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ss << value.as_int();
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if(multiple) ss << "}";
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ss << ")";
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print("{}", ss.str());
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}
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void input(Node, IdString name) { print("input.{}", input_struct[name]); }
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void state(Node, IdString name) { print("current_state.{}", state_struct[name]); }
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void memory_read(Node, Node mem, Node addr, int, int) { print("{}.read({})", mem, addr); }
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void memory_write(Node, Node mem, Node addr, Node data, int, int) { print("{}.write({}, {})", mem, addr, data); }
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void undriven(Node, int width) { print("Signal<{}>(0)", width); }
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};
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struct CxxModule {
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@ -201,31 +165,35 @@ struct CxxModule {
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module_name = FunctionalTools::Scope(illegal_characters, reserved_keywords)(module->name);
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}
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void write_header(CxxWriter &f) {
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f.printf("#include \"sim.h\"\n\n");
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f.print("#include \"sim.h\"\n\n");
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}
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void write_struct_def(CxxWriter &f) {
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f.printf("struct %s {\n", module_name.c_str());
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f.print("struct {} {{\n", module_name);
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input_struct.print(f);
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output_struct.print(f);
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state_struct.print(f);
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f.printf("\tstatic void eval(Inputs const &, Outputs &, State const &, State &);\n");
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f.printf("};\n\n");
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f.print("\tstatic void eval(Inputs const &, Outputs &, State const &, State &);\n");
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f.print("}};\n\n");
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}
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void write_eval_def(CxxWriter &f) {
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f.printf("void %s::eval(%s::Inputs const &input, %s::Outputs &output, %s::State const ¤t_state, %s::State &next_state)\n{\n", module_name.c_str(), module_name.c_str(), module_name.c_str(), module_name.c_str(), module_name.c_str());
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f.print("void {0}::eval({0}::Inputs const &input, {0}::Outputs &output, {0}::State const ¤t_state, {0}::State &next_state)\n{{\n", module_name);
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FunctionalTools::Scope locals(illegal_characters, reserved_keywords);
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locals.reserve("input");
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locals.reserve("output");
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locals.reserve("current_state");
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locals.reserve("next_state");
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auto node_name = [&](FunctionalIR::Node n) { return locals(n.id(), n.name()); };
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for (auto node : ir)
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f.printf("\t%s %s = %s;\n", CxxType(node.sort()).to_string().c_str(), node_name(node).c_str(), node.visit(CxxPrintVisitor(node_name, input_struct, state_struct)).c_str());
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CxxPrintVisitor printVisitor(f, node_name, input_struct, state_struct);
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for (auto node : ir) {
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f.print("\t{} {} = ", CxxType(node.sort()).to_string(), node_name(node));
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node.visit(printVisitor);
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f.print(";\n");
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}
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for (auto [name, sort] : ir.state())
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f.printf("\tnext_state.%s = %s;\n", state_struct[name].c_str(), node_name(ir.get_state_next_node(name)).c_str());
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f.print("\tnext_state.{} = {};\n", state_struct[name], node_name(ir.get_state_next_node(name)));
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for (auto [name, sort] : ir.outputs())
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f.printf("\toutput.%s = %s;\n", output_struct[name].c_str(), node_name(ir.get_output_node(name)).c_str());
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f.printf("}\n");
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f.print("\toutput.{} = {};\n", output_struct[name], node_name(ir.get_output_node(name)));
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f.print("}}\n");
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}
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};
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@ -143,11 +143,11 @@ public:
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{
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for(size_t i = sizeof(T) * 8; i < n; i++)
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if(_bits[i])
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return ~0;
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return ~((T)0);
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return as_numeric<T>();
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}
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uint32_t as_int() { return as_numeric<uint32_t>(); }
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uint32_t as_int() const { return as_numeric<uint32_t>(); }
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Signal<n> operator ~() const
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{
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