From cf4079cb5f51a40c8370a84f5131f944c398f4b8 Mon Sep 17 00:00:00 2001 From: George Marques Date: Thu, 8 Apr 2021 11:55:24 -0300 Subject: Reduce number of addressing modes in GDScript VM There's now only 3 addressing modes: stack, constant, and member. Self, class, and nil are now present respectively in the first 3 stack slots. Global and class constants are moved to local constants when compiling. Named globals is only present on editor to use on tool singletons, so its use now emits a new instruction to copy the global to the stack. This allow us to further optimize the VM later by embedding the addressing modes in the instructions themselves, which is better done with less permutations. --- modules/gdscript/gdscript_compiler.cpp | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'modules/gdscript/gdscript_compiler.cpp') diff --git a/modules/gdscript/gdscript_compiler.cpp b/modules/gdscript/gdscript_compiler.cpp index 6a91148575..abbca899bd 100644 --- a/modules/gdscript/gdscript_compiler.cpp +++ b/modules/gdscript/gdscript_compiler.cpp @@ -262,7 +262,7 @@ GDScriptCodeGenerator::Address GDScriptCompiler::_parse_expression(CodeGen &code GDScriptNativeClass *nc = nullptr; while (scr) { if (scr->constants.has(identifier)) { - return GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::CLASS_CONSTANT, gen->add_or_get_name(identifier)); // TODO: Get type here. + return codegen.add_constant(scr->constants[identifier]); // TODO: Get type here. } if (scr->native.is_valid()) { nc = scr->native.ptr(); @@ -319,7 +319,8 @@ GDScriptCodeGenerator::Address GDScriptCompiler::_parse_expression(CodeGen &code if (GDScriptLanguage::get_singleton()->get_global_map().has(identifier)) { int idx = GDScriptLanguage::get_singleton()->get_global_map()[identifier]; - return GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::GLOBAL, idx); // TODO: Get type. + Variant global = GDScriptLanguage::get_singleton()->get_global_array()[idx]; + return codegen.add_constant(global); // TODO: Get type. } // Try global classes. @@ -347,7 +348,9 @@ GDScriptCodeGenerator::Address GDScriptCompiler::_parse_expression(CodeGen &code #ifdef TOOLS_ENABLED if (GDScriptLanguage::get_singleton()->get_named_globals_map().has(identifier)) { - return GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::NAMED_GLOBAL, gen->add_or_get_name(identifier)); // TODO: Get type. + GDScriptCodeGenerator::Address global = codegen.add_temporary(); // TODO: Get type. + gen->write_store_named_global(global, identifier); + return global; } #endif -- cgit v1.2.3