mirror of
https://github.com/luau-lang/luau.git
synced 2024-11-15 14:25:44 +08:00
424 lines
9.3 KiB
C++
424 lines
9.3 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#include "lua.h"
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#include "lualib.h"
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#include "Luau/BytecodeBuilder.h"
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#include "Luau/CodeGen.h"
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#include "Luau/Compiler.h"
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#include "Luau/Parser.h"
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#include "doctest.h"
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#include "ScopedFlags.h"
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#include <memory>
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LUAU_FASTFLAG(LuauCodegenRemoveDeadStores5)
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LUAU_FASTFLAG(LuauCodegenLoadTVTag)
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static std::string getCodegenAssembly(const char* source)
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{
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Luau::CodeGen::AssemblyOptions options;
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// For IR, we don't care about assembly, but we want a stable target
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options.target = Luau::CodeGen::AssemblyOptions::Target::X64_SystemV;
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options.outputBinary = false;
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options.includeAssembly = false;
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options.includeIr = true;
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options.includeOutlinedCode = false;
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options.includeIrPrefix = Luau::CodeGen::IncludeIrPrefix::No;
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options.includeUseInfo = Luau::CodeGen::IncludeUseInfo::No;
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options.includeCfgInfo = Luau::CodeGen::IncludeCfgInfo::No;
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options.includeRegFlowInfo = Luau::CodeGen::IncludeRegFlowInfo::No;
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Luau::Allocator allocator;
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Luau::AstNameTable names(allocator);
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Luau::ParseResult result = Luau::Parser::parse(source, strlen(source), names, allocator);
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if (!result.errors.empty())
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throw Luau::ParseErrors(result.errors);
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Luau::CompileOptions copts = {};
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copts.optimizationLevel = 2;
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copts.debugLevel = 1;
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copts.vectorCtor = "vector";
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copts.vectorType = "vector";
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Luau::BytecodeBuilder bcb;
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Luau::compileOrThrow(bcb, result, names, copts);
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std::string bytecode = bcb.getBytecode();
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std::unique_ptr<lua_State, void (*)(lua_State*)> globalState(luaL_newstate(), lua_close);
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lua_State* L = globalState.get();
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if (luau_load(L, "name", bytecode.data(), bytecode.size(), 0) == 0)
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return Luau::CodeGen::getAssembly(L, -1, options, nullptr);
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FAIL("Failed to load bytecode");
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return "";
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}
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TEST_SUITE_BEGIN("IrLowering");
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TEST_CASE("VectorReciprocal")
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{
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vecrcp(a: vector)
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return 1 / a
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end
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)"),
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R"(
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; function vecrcp($arg0) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%6 = NUM_TO_VEC 1
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%7 = LOAD_TVALUE R0
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%8 = DIV_VEC %6, %7
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%9 = TAG_VECTOR %8
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STORE_TVALUE R1, %9
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INTERRUPT 1u
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RETURN R1, 1i
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)");
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}
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TEST_CASE("VectorComponentRead")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function compsum(a: vector)
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return a.X + a.Y + a.Z
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end
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)"),
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R"(
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; function compsum($arg0) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%6 = LOAD_FLOAT R0, 0i
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%11 = LOAD_FLOAT R0, 4i
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%20 = ADD_NUM %6, %11
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%25 = LOAD_FLOAT R0, 8i
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%34 = ADD_NUM %20, %25
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STORE_DOUBLE R1, %34
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STORE_TAG R1, tnumber
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INTERRUPT 8u
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RETURN R1, 1i
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)");
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}
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TEST_CASE("VectorAdd")
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{
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vec3add(a: vector, b: vector)
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return a + b
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end
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)"),
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R"(
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; function vec3add($arg0, $arg1) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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CHECK_TAG R1, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%10 = LOAD_TVALUE R0
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%11 = LOAD_TVALUE R1
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%12 = ADD_VEC %10, %11
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%13 = TAG_VECTOR %12
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STORE_TVALUE R2, %13
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INTERRUPT 1u
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RETURN R2, 1i
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)");
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}
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TEST_CASE("VectorMinus")
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{
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vec3minus(a: vector)
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return -a
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end
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)"),
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R"(
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; function vec3minus($arg0) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%6 = LOAD_TVALUE R0
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%7 = UNM_VEC %6
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%8 = TAG_VECTOR %7
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STORE_TVALUE R1, %8
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INTERRUPT 1u
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RETURN R1, 1i
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)");
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}
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TEST_CASE("VectorSubMulDiv")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vec3combo(a: vector, b: vector, c: vector, d: vector)
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return a * b - c / d
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end
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)"),
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R"(
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; function vec3combo($arg0, $arg1, $arg2, $arg3) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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CHECK_TAG R1, tvector, exit(entry)
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CHECK_TAG R2, tvector, exit(entry)
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CHECK_TAG R3, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%14 = LOAD_TVALUE R0
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%15 = LOAD_TVALUE R1
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%16 = MUL_VEC %14, %15
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%23 = LOAD_TVALUE R2
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%24 = LOAD_TVALUE R3
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%25 = DIV_VEC %23, %24
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%34 = SUB_VEC %16, %25
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%35 = TAG_VECTOR %34
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STORE_TVALUE R4, %35
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INTERRUPT 3u
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RETURN R4, 1i
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)");
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}
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TEST_CASE("VectorSubMulDiv2")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vec3combo(a: vector)
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local tmp = a * a
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return (tmp - tmp) / (tmp + tmp)
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end
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)"),
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R"(
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; function vec3combo($arg0) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%8 = LOAD_TVALUE R0
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%10 = MUL_VEC %8, %8
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%19 = SUB_VEC %10, %10
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%28 = ADD_VEC %10, %10
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%37 = DIV_VEC %19, %28
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%38 = TAG_VECTOR %37
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STORE_TVALUE R2, %38
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INTERRUPT 4u
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RETURN R2, 1i
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)");
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}
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TEST_CASE("VectorMulDivMixed")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vec3combo(a: vector, b: vector, c: vector, d: vector)
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return a * 2 + b / 4 + 0.5 * c + 40 / d
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end
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)"),
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R"(
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; function vec3combo($arg0, $arg1, $arg2, $arg3) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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CHECK_TAG R1, tvector, exit(entry)
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CHECK_TAG R2, tvector, exit(entry)
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CHECK_TAG R3, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%12 = LOAD_TVALUE R0
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%13 = NUM_TO_VEC 2
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%14 = MUL_VEC %12, %13
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%19 = LOAD_TVALUE R1
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%20 = NUM_TO_VEC 4
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%21 = DIV_VEC %19, %20
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%30 = ADD_VEC %14, %21
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%40 = NUM_TO_VEC 0.5
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%41 = LOAD_TVALUE R2
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%42 = MUL_VEC %40, %41
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%51 = ADD_VEC %30, %42
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%56 = NUM_TO_VEC 40
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%57 = LOAD_TVALUE R3
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%58 = DIV_VEC %56, %57
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%67 = ADD_VEC %51, %58
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%68 = TAG_VECTOR %67
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STORE_TVALUE R4, %68
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INTERRUPT 8u
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RETURN R4, 1i
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)");
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}
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TEST_CASE("ExtraMathMemoryOperands")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function foo(a: number, b: number, c: number, d: number, e: number)
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return math.floor(a) + math.ceil(b) + math.round(c) + math.sqrt(d) + math.abs(e)
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end
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)"),
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R"(
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; function foo($arg0, $arg1, $arg2, $arg3, $arg4) line 2
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bb_0:
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CHECK_TAG R0, tnumber, exit(entry)
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CHECK_TAG R1, tnumber, exit(entry)
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CHECK_TAG R2, tnumber, exit(entry)
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CHECK_TAG R3, tnumber, exit(entry)
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CHECK_TAG R4, tnumber, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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CHECK_SAFE_ENV exit(1)
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%16 = FLOOR_NUM R0
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%23 = CEIL_NUM R1
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%32 = ADD_NUM %16, %23
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%39 = ROUND_NUM R2
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%48 = ADD_NUM %32, %39
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%55 = SQRT_NUM R3
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%64 = ADD_NUM %48, %55
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%71 = ABS_NUM R4
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%80 = ADD_NUM %64, %71
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STORE_DOUBLE R5, %80
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STORE_TAG R5, tnumber
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INTERRUPT 29u
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RETURN R5, 1i
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)");
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}
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TEST_CASE("DseInitialStackState")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function foo()
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while {} do
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local _ = not _,{}
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_ = nil
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end
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end
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)"),
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R"(
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; function foo() line 2
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bb_bytecode_0:
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SET_SAVEDPC 1u
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%1 = NEW_TABLE 0u, 0u
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STORE_POINTER R0, %1
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STORE_TAG R0, ttable
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CHECK_GC
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JUMP bb_2
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bb_2:
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CHECK_SAFE_ENV exit(3)
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JUMP_EQ_TAG K1, tnil, bb_fallback_4, bb_3
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bb_3:
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%9 = LOAD_TVALUE K1
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STORE_TVALUE R1, %9
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JUMP bb_5
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bb_5:
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SET_SAVEDPC 7u
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%21 = NEW_TABLE 0u, 0u
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STORE_POINTER R1, %21
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STORE_TAG R1, ttable
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CHECK_GC
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STORE_TAG R0, tnil
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INTERRUPT 9u
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JUMP bb_bytecode_0
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)");
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}
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TEST_CASE("DseInitialStackState2")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function foo(a)
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math.frexp(a)
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return a
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end
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)"),
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R"(
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; function foo($arg0) line 2
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bb_bytecode_0:
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CHECK_SAFE_ENV exit(1)
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CHECK_TAG R0, tnumber, exit(1)
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FASTCALL 14u, R1, R0, undef, 1i, 2i
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INTERRUPT 5u
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RETURN R0, 1i
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)");
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}
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TEST_CASE("DseInitialStackState3")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function foo(a)
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math.sign(a)
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return a
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end
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)"),
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R"(
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; function foo($arg0) line 2
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bb_bytecode_0:
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CHECK_SAFE_ENV exit(1)
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CHECK_TAG R0, tnumber, exit(1)
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FASTCALL 47u, R1, R0, undef, 1i, 1i
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INTERRUPT 5u
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RETURN R0, 1i
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)");
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}
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TEST_CASE("VectorConstantTag")
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{
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ScopedFastFlag luauCodegenRemoveDeadStores{FFlag::LuauCodegenRemoveDeadStores5, true};
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ScopedFastFlag luauCodegenLoadTVTag{FFlag::LuauCodegenLoadTVTag, true};
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CHECK_EQ("\n" + getCodegenAssembly(R"(
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local function vecrcp(a: vector)
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return vector(1, 2, 3) + a
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end
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)"),
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R"(
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; function vecrcp($arg0) line 2
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bb_0:
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CHECK_TAG R0, tvector, exit(entry)
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JUMP bb_2
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bb_2:
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JUMP bb_bytecode_1
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bb_bytecode_1:
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%4 = LOAD_TVALUE K0, 0i, tvector
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%11 = LOAD_TVALUE R0
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%12 = ADD_VEC %4, %11
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%13 = TAG_VECTOR %12
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STORE_TVALUE R1, %13
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INTERRUPT 2u
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RETURN R1, 1i
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)");
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}
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TEST_SUITE_END();
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