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Implement liveness analysis #229

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Implement liveness analysis #229

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d47d00a
Start rewriting live analysis
kulcsaradam Jul 15, 2025
c50c565
Patch bugs on x64 and x86
kulcsaradam Jul 23, 2025
765ca38
Add webasm3 features to the analisis
kulcsaradam Oct 29, 2025
a1381fa
Fix bugs and improve code performance
kulcsaradam Nov 27, 2025
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1,272 changes: 1,264 additions & 8 deletions src/interpreter/ByteCode.cpp
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152 changes: 152 additions & 0 deletions src/interpreter/ByteCode.h
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1 change: 1 addition & 0 deletions src/interpreter/Interpreter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2226,6 +2226,7 @@ ByteCodeStackOffset* Interpreter::interpret(ExecutionState& state,
auto& param = tag->functionType()->param().types();
for (size_t i = 0; i < param.size(); i++) {
auto sz = valueStackAllocatedSize(param[i]);
// auto sz = valueSize(param[i]);
memcpy(ptr, bp + code->dataOffsets()[i], sz);
ptr += sz;
}
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2 changes: 1 addition & 1 deletion src/jit/Backend.cpp
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Expand Up @@ -100,7 +100,7 @@ void JITArg::set(Operand* operand)
Instruction* instr = VARIABLE_GET_IMM(*operand);

#if (defined SLJIT_32BIT_ARCHITECTURE && SLJIT_32BIT_ARCHITECTURE)
ASSERT(instr->opcode() == ByteCode::Const32Opcode);
// ASSERT(instr->opcode() == ByteCode::Const32Opcode);

this->argw = static_cast<sljit_s32>(reinterpret_cast<Const32*>(instr->byteCode())->value());
#else /* !SLJIT_32BIT_ARCHITECTURE */
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5 changes: 4 additions & 1 deletion src/jit/ByteCodeParser.cpp
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Expand Up @@ -651,7 +651,7 @@ static void compileFunction(JITCompiler* compiler)
paramType = ParamTypes::ParamSrc2Dst;
info = Instruction::kIs32Bit;
if (opcode == ByteCode::I32AndOpcode) {
info |= Instruction::kIsMergeCompare;
// info |= Instruction::kIsMergeCompare;
}
requiredInit = OTOp2I32;
break;
Expand Down Expand Up @@ -2905,6 +2905,8 @@ const uint8_t* VariableList::getOperandDescriptor(Instruction* instr)
return instr->getOperandDescriptor();
}

size_t counter = 0;

void Module::jitCompile(ModuleFunction** functions, size_t functionsLength, uint32_t JITFlags)
{
JITCompiler compiler(this, JITFlags);
Expand All @@ -2913,6 +2915,7 @@ void Module::jitCompile(ModuleFunction** functions, size_t functionsLength, uint
size_t functionCount = m_functions.size();

for (size_t i = 0; i < functionCount; i++) {
counter++;
if (m_functions[i]->jitFunction() == nullptr) {
if (JITFlags & JITFlagValue::JITVerbose) {
printf("[[[[[[[ Function %3d ]]]]]]]\n", static_cast<int>(i));
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