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Optimizations for GDScript VM

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* Removed instruction argument count and instruction prefetching. This is now done on the fly. Reduces jumps.
* OPCODE_DISPATCH now goes directly to the next instruction, like in Godot 3.x.

I have nothing I can use to test performance, so if anyone wants to lend a hand and compare with master (both on debug and release), it would be very welcome.
This commit is contained in:
Juan Linietsky
2023-01-02 15:29:44 +01:00
parent 57267709e6
commit 7211e041df
5 changed files with 405 additions and 360 deletions
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8
modules/gdscript/gdscript_function.h
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@@ -405,6 +405,7 @@ public:
ADDR_TYPE_STACK = 0,
ADDR_TYPE_CONSTANT = 1,
ADDR_TYPE_MEMBER = 2,
ADDR_TYPE_MAX = 3,
};
enum FixedAddresses {
@@ -416,12 +417,6 @@ public:
ADDR_NIL = ADDR_STACK_NIL | (ADDR_TYPE_STACK << ADDR_BITS),
};
enum Instruction {
INSTR_BITS = 20,
INSTR_MASK = ((1 << INSTR_BITS) - 1),
INSTR_ARGS_MASK = ~INSTR_MASK,
};
struct StackDebug {
int line;
int pos;
@@ -514,7 +509,6 @@ private:
Variant _get_default_variant_for_data_type(const GDScriptDataType &p_data_type);
_FORCE_INLINE_ Variant *_get_variant(int p_address, GDScriptInstance *p_instance, Variant *p_stack, String &r_error) const;
_FORCE_INLINE_ String _get_call_error(const Callable::CallError &p_err, const String &p_where, const Variant **argptrs) const;
friend class GDScriptLanguage;