diff options
Diffstat (limited to 'Source/JavaScriptCore/llint/LowLevelInterpreter64.asm')
| -rw-r--r-- | Source/JavaScriptCore/llint/LowLevelInterpreter64.asm | 119 |
1 files changed, 84 insertions, 35 deletions
diff --git a/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm b/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm index 73e8613de..d429542e7 100644 --- a/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm +++ b/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm @@ -51,18 +51,30 @@ macro dispatchAfterCall() end macro cCall2(function, arg1, arg2) - move arg1, t5 - move arg2, t4 - call function + if X86_64 + move arg1, t5 + move arg2, t4 + call function + elsif C_LOOP + cloopCallSlowPath function, arg1, arg2 + else + error + end end # This barely works. arg3 and arg4 should probably be immediates. macro cCall4(function, arg1, arg2, arg3, arg4) - move arg1, t5 - move arg2, t4 - move arg3, t1 - move arg4, t2 - call function + if X86_64 + move arg1, t5 + move arg2, t4 + move arg3, t1 + move arg4, t2 + call function + elsif C_LOOP + error + else + error + end end macro prepareStateForCCall() @@ -857,14 +869,14 @@ macro getScope(deBruijinIndexOperand, scopeCheck) # Need to conditionally skip over one scope. btpz [cfr, t1, 8], .noActivation scopeCheck(t0, t1) - loadp ScopeChainNode::next[t0], t0 + loadp JSScope::m_next[t0], t0 .noActivation: subi 1, t2 btiz t2, .done .loop: scopeCheck(t0, t1) - loadp ScopeChainNode::next[t0], t0 + loadp JSScope::m_next[t0], t0 subi 1, t2 btinz t2, .loop @@ -873,13 +885,13 @@ end _llint_op_resolve_global_dynamic: traceExecution() - loadp JITStackFrame::globalData[sp], t3 - loadp JSGlobalData::activationStructure[t3], t3 + loadp CodeBlock[cfr], t3 + loadp CodeBlock::m_globalObject[t3], t3 + loadp JSGlobalObject::m_activationStructure[t3], t3 getScope( 40[PB, PC, 8], macro (scope, scratch) - loadp ScopeChainNode::object[scope], scratch - bpneq JSCell::m_structure[scratch], t3, .opResolveGlobalDynamicSuperSlow + bpneq JSCell::m_structure[scope], t3, .opResolveGlobalDynamicSuperSlow end) resolveGlobal(7, .opResolveGlobalDynamicSlow) dispatch(7) @@ -902,7 +914,6 @@ _llint_op_get_scoped_var: getScope(24[PB, PC, 8], macro (scope, scratch) end) loadis 8[PB, PC, 8], t1 loadis 16[PB, PC, 8], t2 - loadp ScopeChainNode::object[t0], t0 loadp JSVariableObject::m_registers[t0], t0 loadp [t0, t2, 8], t3 storep t3, [cfr, t1, 8] @@ -918,7 +929,6 @@ _llint_op_put_scoped_var: loadConstantOrVariable(t1, t3) loadis 8[PB, PC, 8], t1 writeBarrier(t3) - loadp ScopeChainNode::object[t0], t0 loadp JSVariableObject::m_registers[t0], t0 storep t3, [t0, t1, 8] dispatch(4) @@ -1234,7 +1244,10 @@ _llint_op_put_by_val: _llint_op_loop: - nop + traceExecution() + dispatchInt(8[PB, PC, 8]) + + _llint_op_jmp: traceExecution() dispatchInt(8[PB, PC, 8]) @@ -1430,6 +1443,18 @@ _llint_op_new_func: dispatch(4) +macro arrayProfileForCall() + if VALUE_PROFILER + loadis 24[PB, PC, 8], t3 + loadp ThisArgumentOffset[cfr, t3, 8], t0 + btpnz t0, tagMask, .done + loadp JSCell::m_structure[t0], t0 + loadp 40[PB, PC, 8], t1 + storep t0, ArrayProfile::m_lastSeenStructure[t1] + .done: + end +end + macro doCall(slowPath) loadis 8[PB, PC, 8], t0 loadp 32[PB, PC, 8], t1 @@ -1440,7 +1465,7 @@ macro doCall(slowPath) addi 6, PC lshifti 3, t3 addp cfr, t3 - loadp JSFunction::m_scopeChain[t2], t0 + loadp JSFunction::m_scope[t2], t0 storep t2, Callee[t3] storep t0, ScopeChain[t3] loadis 16 - 48[PB, PC, 8], t2 @@ -1448,8 +1473,7 @@ macro doCall(slowPath) storep cfr, CallerFrame[t3] storei t2, ArgumentCount + PayloadOffset[t3] move t3, cfr - call LLIntCallLinkInfo::machineCodeTarget[t1] - dispatchAfterCall() + callTargetFunction(t1) .opCallSlow: slowPathForCall(6, slowPath) @@ -1620,21 +1644,46 @@ _llint_throw_during_call_trampoline: macro nativeCallTrampoline(executableOffsetToFunction) storep 0, CodeBlock[cfr] - loadp JITStackFrame::globalData + 8[sp], t0 - storep cfr, JSGlobalData::topCallFrame[t0] - loadp CallerFrame[cfr], t0 - loadp ScopeChain[t0], t1 - storep t1, ScopeChain[cfr] - peek 0, t1 - storep t1, ReturnPC[cfr] - move cfr, t5 # t5 = rdi - subp 16 - 8, sp - loadp Callee[cfr], t4 # t4 = rsi - loadp JSFunction::m_executable[t4], t1 - move t0, cfr # Restore cfr to avoid loading from stack - call executableOffsetToFunction[t1] - addp 16 - 8, sp - loadp JITStackFrame::globalData + 8[sp], t3 + if X86_64 + loadp JITStackFrame::globalData + 8[sp], t0 + storep cfr, JSGlobalData::topCallFrame[t0] + loadp CallerFrame[cfr], t0 + loadp ScopeChain[t0], t1 + storep t1, ScopeChain[cfr] + peek 0, t1 + storep t1, ReturnPC[cfr] + move cfr, t5 # t5 = rdi + subp 16 - 8, sp + loadp Callee[cfr], t4 # t4 = rsi + loadp JSFunction::m_executable[t4], t1 + move t0, cfr # Restore cfr to avoid loading from stack + call executableOffsetToFunction[t1] + addp 16 - 8, sp + loadp JITStackFrame::globalData + 8[sp], t3 + + elsif C_LOOP + loadp CallerFrame[cfr], t0 + loadp ScopeChain[t0], t1 + storep t1, ScopeChain[cfr] + + loadp JITStackFrame::globalData[sp], t3 + storep cfr, JSGlobalData::topCallFrame[t3] + + move t0, t2 + preserveReturnAddressAfterCall(t3) + storep t3, ReturnPC[cfr] + move cfr, t0 + loadp Callee[cfr], t1 + loadp JSFunction::m_executable[t1], t1 + move t2, cfr + cloopCallNative executableOffsetToFunction[t1] + + restoreReturnAddressBeforeReturn(t3) + loadp JITStackFrame::globalData[sp], t3 + else + error + end + btpnz JSGlobalData::exception[t3], .exception ret .exception: |