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some optimize

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This commit is contained in:
blueloveTH 2024-01-07 01:49:33 +08:00
parent f2ea8e28ec
commit 2cd22d40c5
3 changed files with 34 additions and 32 deletions
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3
include/pocketpy/expr.h
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@ -67,7 +67,8 @@ struct CodeEmitContext{
void patch_jump(int index);
bool add_label(StrName name);
int add_varname(StrName name);
int add_const(PyObject* v);
int add_const(PyObject*);
int add_const_string(std::string_view);
int add_func_decl(FuncDecl_ decl);
void emit_store_name(NameScope scope, StrName name, int line);
};

4
src/compiler.cpp
View File

@ -515,7 +515,7 @@ __SUBSCR_END:
do {
consume(TK("@id"));
Str name = prev().str();
ctx()->emit_(OP_IMPORT_PATH, ctx()->add_const(VAR(name)), prev().line);
ctx()->emit_(OP_IMPORT_PATH, ctx()->add_const_string(name.sv()), prev().line);
if (match(TK("as"))) {
consume(TK("@id"));
name = prev().str();
@ -567,7 +567,7 @@ __EAT_DOTS_END:
}
}
ctx()->emit_(OP_IMPORT_PATH, ctx()->add_const(VAR(ss.str())), prev().line);
ctx()->emit_(OP_IMPORT_PATH, ctx()->add_const_string(ss.str().sv()), prev().line);
consume(TK("import"));
if (match(TK("*"))) {

59
src/expr.cpp
View File

@ -86,19 +86,22 @@ namespace pkpy{
return index;
}
int CodeEmitContext::add_const_string(std::string_view key){
auto it = _co_consts_string_dedup_map.find(key);
if(it != _co_consts_string_dedup_map.end()){
return it->second;
}else{
co->consts.push_back(VAR(key));
int index = co->consts.size() - 1;
_co_consts_string_dedup_map[std::string(key)] = index;
return index;
}
}
int CodeEmitContext::add_const(PyObject* v){
if(is_non_tagged_type(v, vm->tp_str)){
// string deduplication
std::string_view key = PK_OBJ_GET(Str, v).sv();
auto it = _co_consts_string_dedup_map.find(key);
if(it != _co_consts_string_dedup_map.end()){
return it->second;
}else{
co->consts.push_back(v);
int index = co->consts.size() - 1;
_co_consts_string_dedup_map[std::string(key)] = index;
return index;
}
// warning: should use add_const_string() instead
return add_const_string(PK_OBJ_GET(Str, v).sv());
}else{
// non-string deduplication
auto it = _co_consts_nonstring_dedup_map.find(v);
@ -225,8 +228,7 @@ namespace pkpy{
}
void LongExpr::emit_(CodeEmitContext* ctx) {
VM* vm = ctx->vm;
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR(s)), line);
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string(s.sv()), line);
ctx->emit_(OP_BUILD_LONG, BC_NOARG, line);
}
@ -237,31 +239,31 @@ namespace pkpy{
}
void BytesExpr::emit_(CodeEmitContext* ctx) {
VM* vm = ctx->vm;
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR(s)), line);
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string(s.sv()), line);
ctx->emit_(OP_BUILD_BYTES, BC_NOARG, line);
}
void LiteralExpr::emit_(CodeEmitContext* ctx) {
VM* vm = ctx->vm;
PyObject* obj = nullptr;
if(std::holds_alternative<i64>(value)){
i64 _val = std::get<i64>(value);
if(is_imm_int(_val)){
ctx->emit_(OP_LOAD_INTEGER, (uint16_t)_val, line);
return;
}
obj = VAR(_val);
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR(_val)), line);
return;
}
if(std::holds_alternative<f64>(value)){
f64 _val = std::get<f64>(value);
obj = VAR(_val);
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR(_val)), line);
return;
}
if(std::holds_alternative<Str>(value)){
obj = VAR(std::get<Str>(value));
std::string_view key = std::get<Str>(value).sv();
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string(key), line);
return;
}
PK_ASSERT(obj != nullptr)
ctx->emit_(OP_LOAD_CONST, ctx->add_const(obj), line);
}
void NegatedExpr::emit_(CodeEmitContext* ctx){
@ -412,7 +414,7 @@ namespace pkpy{
ctx->emit_(OP_LOAD_ATTR, attr.index, line);
}
}else{
int index = ctx->add_const(py_var(ctx->vm, expr));
int index = ctx->add_const_string(expr.sv());
ctx->emit_(OP_FSTRING_EVAL, index, line);
}
if(repr){
@ -421,7 +423,6 @@ namespace pkpy{
}
void FStringExpr::emit_(CodeEmitContext* ctx){
VM* vm = ctx->vm;
int i = 0; // left index
int j = 0; // right index
int count = 0; // how many string parts
@ -444,7 +445,7 @@ namespace pkpy{
for(char c: spec) if(!fmt_valid_char_set.count(c)){ ok = false; break; }
if(ok){
_load_simple_expr(ctx, expr.substr(0, conon));
ctx->emit_(OP_FORMAT_STRING, ctx->add_const(VAR(spec)), line);
ctx->emit_(OP_FORMAT_STRING, ctx->add_const_string(spec.sv()), line);
}else{
// ':' is not a spec indicator
_load_simple_expr(ctx, expr);
@ -461,7 +462,7 @@ namespace pkpy{
if(j+1 < src.size && src[j+1] == '{'){
// {{ -> {
j++;
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR("{")), line);
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string("{"), line);
count++;
}else{
// { -> }
@ -473,7 +474,7 @@ namespace pkpy{
if(j+1 < src.size && src[j+1] == '}'){
// }} -> }
j++;
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR("}")), line);
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string("}"), line);
count++;
}else{
// } -> error
@ -485,7 +486,7 @@ namespace pkpy{
i = j;
while(j < src.size && src[j] != '{' && src[j] != '}') j++;
Str literal = src.substr(i, j-i);
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR(literal)), line);
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string(literal.sv()), line);
count++;
continue; // skip j++
}
@ -496,7 +497,7 @@ namespace pkpy{
if(flag){
// literal
Str literal = src.substr(i, src.size-i);
ctx->emit_(OP_LOAD_CONST, ctx->add_const(VAR(literal)), line);
ctx->emit_(OP_LOAD_CONST, ctx->add_const_string(literal.sv()), line);
count++;
}
@ -576,7 +577,7 @@ namespace pkpy{
item.second->emit_(ctx);
}else{
// k=v
int index = ctx->add_const(py_var(ctx->vm, item.first));
int index = ctx->add_const_string(item.first.sv());
ctx->emit_(OP_LOAD_CONST, index, line);
item.second->emit_(ctx);
ctx->emit_(OP_BUILD_TUPLE, 2, line);