luau/CodeGen/include/Luau/AddressA64.h
vegorov-rbx 140e5a1495
Sync to upstream/release/566 (#853)
* Fixed incorrect lexeme generated for string parts in the middle of an
interpolated string (Fixes https://github.com/Roblox/luau/issues/744)
* DeprecatedApi lint can report some issues without type inference
information
* Fixed performance of autocomplete requests when suggestions have large
intersection types (Solves
https://github.com/Roblox/luau/discussions/847)
* Marked `table.getn`/`foreach`/`foreachi` as deprecated ([RFC:
Deprecate
table.getn/foreach/foreachi](https://github.com/Roblox/luau/blob/master/rfcs/deprecate-table-getn-foreach.md))
* With -O2 optimization level, we now optimize builtin calls based on
known argument/return count.
Note that this change can be observable if `getfenv/setfenv` is used to
substitute a builtin, especially if arity is different.
Fastcall heavy tests show a 1-2% improvement.
* Luau can now be built with clang-cl (Fixes
https://github.com/Roblox/luau/issues/736)

We also made many improvements to our experimental components.

For our new type solver:
* Overhauled data flow analysis system, fixed issues with 'repeat'
loops, global variables and type annotations
* Type refinements now work on generic table indexing with a string
literal
* Type refinements will properly track potentially 'nil' values (like
t[x] for a missing key) and their further refinements
* Internal top table type is now isomorphic to `{}` which fixes issues
when `typeof(v) == 'table'` type refinement is handled
* References to non-existent types in type annotations no longer resolve
to 'error' type like in old solver
* Improved handling of class unions in property access expressions
* Fixed default type packs
* Unsealed tables can now have metatables
* Restored expected types for function arguments

And for native code generation:
* Added min and max IR instructions mapping to vminsd/vmaxsd on x64
* We now speculatively extract direct execution fast-paths based on
expected types of expressions which provides better optimization
opportunities inside a single basic block
* Translated existing math fastcalls to IR form to improve tag guard
removal and constant propagation
2023-03-03 12:21:14 -08:00

56 lines
1.1 KiB
C++

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once
#include "Luau/RegisterA64.h"
namespace Luau
{
namespace CodeGen
{
namespace A64
{
enum class AddressKindA64 : uint8_t
{
imm, // reg + imm
reg, // reg + reg
// TODO:
// reg + reg << shift
// reg + sext(reg) << shift
// reg + uext(reg) << shift
};
struct AddressA64
{
AddressA64(RegisterA64 base, int off = 0)
: kind(AddressKindA64::imm)
, base(base)
, offset(xzr)
, data(off)
{
LUAU_ASSERT(base.kind == KindA64::x || base == sp);
LUAU_ASSERT(off >= -256 && off < 4096);
}
AddressA64(RegisterA64 base, RegisterA64 offset)
: kind(AddressKindA64::reg)
, base(base)
, offset(offset)
, data(0)
{
LUAU_ASSERT(base.kind == KindA64::x);
LUAU_ASSERT(offset.kind == KindA64::x);
}
AddressKindA64 kind;
RegisterA64 base;
RegisterA64 offset;
int data;
};
using mem = AddressA64;
} // namespace A64
} // namespace CodeGen
} // namespace Luau