--- /dev/null
+# Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+
+# Work-around for the fact that the toolchain's awareness of armv7s results in
+# a separate slab in the fat binary, yet the offlineasm doesn't know to expect
+# it.
+if ARMv7s
+end
+
+# First come the common protocols that both interpreters use. Note that each
+# of these must have an ASSERT() in LLIntData.cpp
+
+# These declarations must match interpreter/RegisterFile.h.
+const CallFrameHeaderSize = 48
+const ArgumentCount = -48
+const CallerFrame = -40
+const Callee = -32
+const ScopeChain = -24
+const ReturnPC = -16
+const CodeBlock = -8
+
+const ThisArgumentOffset = -CallFrameHeaderSize - 8
+
+# Some register conventions.
+if JSVALUE64
+ # - Use a pair of registers to represent the PC: one register for the
+ # base of the register file, and one register for the index.
+ # - The PC base (or PB for short) should be stored in the csr. It will
+ # get clobbered on calls to other JS code, but will get saved on calls
+ # to C functions.
+ # - C calls are still given the Instruction* rather than the PC index.
+ # This requires an add before the call, and a sub after.
+ const PC = t4
+ const PB = t6
+ const tagTypeNumber = csr1
+ const tagMask = csr2
+else
+ const PC = t4
+end
+
+# Constants for reasoning about value representation.
+if BIG_ENDIAN
+ const TagOffset = 0
+ const PayloadOffset = 4
+else
+ const TagOffset = 4
+ const PayloadOffset = 0
+end
+
+# Type constants.
+const StringType = 5
+const ObjectType = 13
+
+# Type flags constants.
+const MasqueradesAsUndefined = 1
+const ImplementsHasInstance = 2
+const ImplementsDefaultHasInstance = 8
+
+# Bytecode operand constants.
+const FirstConstantRegisterIndex = 0x40000000
+
+# Code type constants.
+const GlobalCode = 0
+const EvalCode = 1
+const FunctionCode = 2
+
+# The interpreter steals the tag word of the argument count.
+const LLIntReturnPC = ArgumentCount + TagOffset
+
+# String flags.
+const HashFlags8BitBuffer = 64
+
+# Allocation constants
+if JSVALUE64
+ const JSFinalObjectSizeClassIndex = 1
+else
+ const JSFinalObjectSizeClassIndex = 3
+end
+
+# This must match wtf/Vector.h
+if JSVALUE64
+ const VectorSizeOffset = 0
+ const VectorBufferOffset = 8
+else
+ const VectorSizeOffset = 0
+ const VectorBufferOffset = 4
+end
+
+
+# Some common utilities.
+macro crash()
+ storei 0, 0xbbadbeef[]
+ move 0, t0
+ call t0
+end
+
+macro assert(assertion)
+ if ASSERT_ENABLED
+ assertion(.ok)
+ crash()
+ .ok:
+ end
+end
+
+macro preserveReturnAddressAfterCall(destinationRegister)
+ if ARMv7
+ move lr, destinationRegister
+ elsif X86 or X86_64
+ pop destinationRegister
+ else
+ error
+ end
+end
+
+macro restoreReturnAddressBeforeReturn(sourceRegister)
+ if ARMv7
+ move sourceRegister, lr
+ elsif X86 or X86_64
+ push sourceRegister
+ else
+ error
+ end
+end
+
+macro traceExecution()
+ if EXECUTION_TRACING
+ callSlowPath(_llint_trace)
+ end
+end
+
+macro slowPathForCall(advance, slowPath)
+ callCallSlowPath(
+ advance,
+ slowPath,
+ macro (callee)
+ call callee
+ dispatchAfterCall()
+ end)
+end
+
+macro checkSwitchToJIT(increment, action)
+ if JIT_ENABLED
+ loadp CodeBlock[cfr], t0
+ baddis increment, CodeBlock::m_llintExecuteCounter + ExecutionCounter::m_counter[t0], .continue
+ action()
+ .continue:
+ end
+end
+
+macro checkSwitchToJITForEpilogue()
+ checkSwitchToJIT(
+ 10,
+ macro ()
+ callSlowPath(_llint_replace)
+ end)
+end
+
+macro assertNotConstant(index)
+ assert(macro (ok) bilt index, FirstConstantRegisterIndex, ok end)
+end
+
+macro functionForCallCodeBlockGetter(targetRegister)
+ loadp Callee[cfr], targetRegister
+ loadp JSFunction::m_executable[targetRegister], targetRegister
+ loadp FunctionExecutable::m_codeBlockForCall[targetRegister], targetRegister
+end
+
+macro functionForConstructCodeBlockGetter(targetRegister)
+ loadp Callee[cfr], targetRegister
+ loadp JSFunction::m_executable[targetRegister], targetRegister
+ loadp FunctionExecutable::m_codeBlockForConstruct[targetRegister], targetRegister
+end
+
+macro notFunctionCodeBlockGetter(targetRegister)
+ loadp CodeBlock[cfr], targetRegister
+end
+
+macro functionCodeBlockSetter(sourceRegister)
+ storep sourceRegister, CodeBlock[cfr]
+end
+
+macro notFunctionCodeBlockSetter(sourceRegister)
+ # Nothing to do!
+end
+
+# Do the bare minimum required to execute code. Sets up the PC, leave the CodeBlock*
+# in t1. May also trigger prologue entry OSR.
+macro prologue(codeBlockGetter, codeBlockSetter, osrSlowPath, traceSlowPath)
+ preserveReturnAddressAfterCall(t2)
+
+ # Set up the call frame and check if we should OSR.
+ storep t2, ReturnPC[cfr]
+ if EXECUTION_TRACING
+ callSlowPath(traceSlowPath)
+ end
+ codeBlockGetter(t1)
+ if JIT_ENABLED
+ baddis 5, CodeBlock::m_llintExecuteCounter + ExecutionCounter::m_counter[t1], .continue
+ cCall2(osrSlowPath, cfr, PC)
+ move t1, cfr
+ btpz t0, .recover
+ loadp ReturnPC[cfr], t2
+ restoreReturnAddressBeforeReturn(t2)
+ jmp t0
+ .recover:
+ codeBlockGetter(t1)
+ .continue:
+ end
+ codeBlockSetter(t1)
+
+ # Set up the PC.
+ if JSVALUE64
+ loadp CodeBlock::m_instructions[t1], PB
+ move 0, PC
+ else
+ loadp CodeBlock::m_instructions[t1], PC
+ end
+end
+
+# Expects that CodeBlock is in t1, which is what prologue() leaves behind.
+# Must call dispatch(0) after calling this.
+macro functionInitialization(profileArgSkip)
+ if VALUE_PROFILER
+ # Profile the arguments. Unfortunately, we have no choice but to do this. This
+ # code is pretty horrendous because of the difference in ordering between
+ # arguments and value profiles, the desire to have a simple loop-down-to-zero
+ # loop, and the desire to use only three registers so as to preserve the PC and
+ # the code block. It is likely that this code should be rewritten in a more
+ # optimal way for architectures that have more than five registers available
+ # for arbitrary use in the interpreter.
+ loadi CodeBlock::m_numParameters[t1], t0
+ addp -profileArgSkip, t0 # Use addi because that's what has the peephole
+ assert(macro (ok) bpgteq t0, 0, ok end)
+ btpz t0, .argumentProfileDone
+ loadp CodeBlock::m_argumentValueProfiles + VectorBufferOffset[t1], t3
+ mulp sizeof ValueProfile, t0, t2 # Aaaaahhhh! Need strength reduction!
+ negp t0
+ lshiftp 3, t0
+ addp t2, t3
+ .argumentProfileLoop:
+ if JSVALUE64
+ loadp ThisArgumentOffset + 8 - profileArgSkip * 8[cfr, t0], t2
+ subp sizeof ValueProfile, t3
+ storep t2, profileArgSkip * sizeof ValueProfile + ValueProfile::m_buckets[t3]
+ else
+ loadi ThisArgumentOffset + TagOffset + 8 - profileArgSkip * 8[cfr, t0], t2
+ subp sizeof ValueProfile, t3
+ storei t2, profileArgSkip * sizeof ValueProfile + ValueProfile::m_buckets + TagOffset[t3]
+ loadi ThisArgumentOffset + PayloadOffset + 8 - profileArgSkip * 8[cfr, t0], t2
+ storei t2, profileArgSkip * sizeof ValueProfile + ValueProfile::m_buckets + PayloadOffset[t3]
+ end
+ baddpnz 8, t0, .argumentProfileLoop
+ .argumentProfileDone:
+ end
+
+ # Check stack height.
+ loadi CodeBlock::m_numCalleeRegisters[t1], t0
+ loadp CodeBlock::m_globalData[t1], t2
+ loadp JSGlobalData::interpreter[t2], t2 # FIXME: Can get to the RegisterFile from the JITStackFrame
+ lshifti 3, t0
+ addp t0, cfr, t0
+ bpaeq Interpreter::m_registerFile + RegisterFile::m_end[t2], t0, .stackHeightOK
+
+ # Stack height check failed - need to call a slow_path.
+ callSlowPath(_llint_register_file_check)
+.stackHeightOK:
+end
+
+macro allocateBasicJSObject(sizeClassIndex, classInfoOffset, structure, result, scratch1, scratch2, slowCase)
+ if ALWAYS_ALLOCATE_SLOW
+ jmp slowCase
+ else
+ const offsetOfMySizeClass =
+ JSGlobalData::heap +
+ Heap::m_objectSpace +
+ MarkedSpace::m_normalSpace +
+ MarkedSpace::Subspace::preciseAllocators +
+ sizeClassIndex * sizeof MarkedAllocator
+
+ const offsetOfFirstFreeCell =
+ MarkedAllocator::m_freeList +
+ MarkedBlock::FreeList::head
+
+ # FIXME: we can get the global data in one load from the stack.
+ loadp CodeBlock[cfr], scratch1
+ loadp CodeBlock::m_globalData[scratch1], scratch1
+
+ # Get the object from the free list.
+ loadp offsetOfMySizeClass + offsetOfFirstFreeCell[scratch1], result
+ btpz result, slowCase
+
+ # Remove the object from the free list.
+ loadp [result], scratch2
+ storep scratch2, offsetOfMySizeClass + offsetOfFirstFreeCell[scratch1]
+
+ # Initialize the object.
+ loadp classInfoOffset[scratch1], scratch2
+ storep scratch2, [result]
+ storep structure, JSCell::m_structure[result]
+ storep 0, JSObject::m_inheritorID[result]
+ addp sizeof JSObject, result, scratch1
+ storep scratch1, JSObject::m_propertyStorage[result]
+ end
+end
+
+macro doReturn()
+ loadp ReturnPC[cfr], t2
+ loadp CallerFrame[cfr], cfr
+ restoreReturnAddressBeforeReturn(t2)
+ ret
+end
+
+
+# Indicate the beginning of LLInt.
+_llint_begin:
+ crash()
+
+
+_llint_program_prologue:
+ prologue(notFunctionCodeBlockGetter, notFunctionCodeBlockSetter, _llint_entry_osr, _llint_trace_prologue)
+ dispatch(0)
+
+
+_llint_eval_prologue:
+ prologue(notFunctionCodeBlockGetter, notFunctionCodeBlockSetter, _llint_entry_osr, _llint_trace_prologue)
+ dispatch(0)
+
+
+_llint_function_for_call_prologue:
+ prologue(functionForCallCodeBlockGetter, functionCodeBlockSetter, _llint_entry_osr_function_for_call, _llint_trace_prologue_function_for_call)
+.functionForCallBegin:
+ functionInitialization(0)
+ dispatch(0)
+
+
+_llint_function_for_construct_prologue:
+ prologue(functionForConstructCodeBlockGetter, functionCodeBlockSetter, _llint_entry_osr_function_for_construct, _llint_trace_prologue_function_for_construct)
+.functionForConstructBegin:
+ functionInitialization(1)
+ dispatch(0)
+
+
+_llint_function_for_call_arity_check:
+ prologue(functionForCallCodeBlockGetter, functionCodeBlockSetter, _llint_entry_osr_function_for_call_arityCheck, _llint_trace_arityCheck_for_call)
+ functionArityCheck(.functionForCallBegin, _llint_slow_path_call_arityCheck)
+
+
+_llint_function_for_construct_arity_check:
+ prologue(functionForConstructCodeBlockGetter, functionCodeBlockSetter, _llint_entry_osr_function_for_construct_arityCheck, _llint_trace_arityCheck_for_construct)
+ functionArityCheck(.functionForConstructBegin, _llint_slow_path_construct_arityCheck)
+
+
+# Value-representation-specific code.
+if JSVALUE64
+ include LowLevelInterpreter64
+else
+ include LowLevelInterpreter32_64
+end
+
+
+# Value-representation-agnostic code.
+_llint_op_new_array:
+ traceExecution()
+ callSlowPath(_llint_slow_path_new_array)
+ dispatch(4)
+
+
+_llint_op_new_array_buffer:
+ traceExecution()
+ callSlowPath(_llint_slow_path_new_array_buffer)
+ dispatch(4)
+
+
+_llint_op_new_regexp:
+ traceExecution()
+ callSlowPath(_llint_slow_path_new_regexp)
+ dispatch(3)
+
+
+_llint_op_less:
+ traceExecution()
+ callSlowPath(_llint_slow_path_less)
+ dispatch(4)
+
+
+_llint_op_lesseq:
+ traceExecution()
+ callSlowPath(_llint_slow_path_lesseq)
+ dispatch(4)
+
+
+_llint_op_greater:
+ traceExecution()
+ callSlowPath(_llint_slow_path_greater)
+ dispatch(4)
+
+
+_llint_op_greatereq:
+ traceExecution()
+ callSlowPath(_llint_slow_path_greatereq)
+ dispatch(4)
+
+
+_llint_op_mod:
+ traceExecution()
+ callSlowPath(_llint_slow_path_mod)
+ dispatch(4)
+
+
+_llint_op_typeof:
+ traceExecution()
+ callSlowPath(_llint_slow_path_typeof)
+ dispatch(3)
+
+
+_llint_op_is_object:
+ traceExecution()
+ callSlowPath(_llint_slow_path_is_object)
+ dispatch(3)
+
+
+_llint_op_is_function:
+ traceExecution()
+ callSlowPath(_llint_slow_path_is_function)
+ dispatch(3)
+
+
+_llint_op_in:
+ traceExecution()
+ callSlowPath(_llint_slow_path_in)
+ dispatch(4)
+
+
+_llint_op_resolve:
+ traceExecution()
+ callSlowPath(_llint_slow_path_resolve)
+ dispatch(4)
+
+
+_llint_op_resolve_skip:
+ traceExecution()
+ callSlowPath(_llint_slow_path_resolve_skip)
+ dispatch(5)
+
+
+_llint_op_resolve_base:
+ traceExecution()
+ callSlowPath(_llint_slow_path_resolve_base)
+ dispatch(5)
+
+
+_llint_op_ensure_property_exists:
+ traceExecution()
+ callSlowPath(_llint_slow_path_ensure_property_exists)
+ dispatch(3)
+
+
+_llint_op_resolve_with_base:
+ traceExecution()
+ callSlowPath(_llint_slow_path_resolve_with_base)
+ dispatch(5)
+
+
+_llint_op_resolve_with_this:
+ traceExecution()
+ callSlowPath(_llint_slow_path_resolve_with_this)
+ dispatch(5)
+
+
+_llint_op_del_by_id:
+ traceExecution()
+ callSlowPath(_llint_slow_path_del_by_id)
+ dispatch(4)
+
+
+_llint_op_del_by_val:
+ traceExecution()
+ callSlowPath(_llint_slow_path_del_by_val)
+ dispatch(4)
+
+
+_llint_op_put_by_index:
+ traceExecution()
+ callSlowPath(_llint_slow_path_put_by_index)
+ dispatch(4)
+
+
+_llint_op_put_getter_setter:
+ traceExecution()
+ callSlowPath(_llint_slow_path_put_getter_setter)
+ dispatch(5)
+
+
+_llint_op_jmp_scopes:
+ traceExecution()
+ callSlowPath(_llint_slow_path_jmp_scopes)
+ dispatch(0)
+
+
+_llint_op_loop_if_true:
+ jmp _llint_op_jtrue
+_llint_op_jtrue:
+ traceExecution()
+ jumpTrueOrFalse(
+ macro (value, target) btinz value, target end,
+ _llint_slow_path_jtrue)
+
+
+_llint_op_loop_if_false:
+ jmp _llint_op_jfalse
+_llint_op_jfalse:
+ traceExecution()
+ jumpTrueOrFalse(
+ macro (value, target) btiz value, target end,
+ _llint_slow_path_jfalse)
+
+
+_llint_op_loop_if_less:
+ jmp _llint_op_jless
+_llint_op_jless:
+ traceExecution()
+ compare(
+ macro (left, right, target) bilt left, right, target end,
+ macro (left, right, target) bdlt left, right, target end,
+ _llint_slow_path_jless)
+
+
+_llint_op_jnless:
+ traceExecution()
+ compare(
+ macro (left, right, target) bigteq left, right, target end,
+ macro (left, right, target) bdgtequn left, right, target end,
+ _llint_slow_path_jnless)
+
+
+_llint_op_loop_if_greater:
+ jmp _llint_op_jgreater
+_llint_op_jgreater:
+ traceExecution()
+ compare(
+ macro (left, right, target) bigt left, right, target end,
+ macro (left, right, target) bdgt left, right, target end,
+ _llint_slow_path_jgreater)
+
+
+_llint_op_jngreater:
+ traceExecution()
+ compare(
+ macro (left, right, target) bilteq left, right, target end,
+ macro (left, right, target) bdltequn left, right, target end,
+ _llint_slow_path_jngreater)
+
+
+_llint_op_loop_if_lesseq:
+ jmp _llint_op_jlesseq
+_llint_op_jlesseq:
+ traceExecution()
+ compare(
+ macro (left, right, target) bilteq left, right, target end,
+ macro (left, right, target) bdlteq left, right, target end,
+ _llint_slow_path_jlesseq)
+
+
+_llint_op_jnlesseq:
+ traceExecution()
+ compare(
+ macro (left, right, target) bigt left, right, target end,
+ macro (left, right, target) bdgtun left, right, target end,
+ _llint_slow_path_jnlesseq)
+
+
+_llint_op_loop_if_greatereq:
+ jmp _llint_op_jgreatereq
+_llint_op_jgreatereq:
+ traceExecution()
+ compare(
+ macro (left, right, target) bigteq left, right, target end,
+ macro (left, right, target) bdgteq left, right, target end,
+ _llint_slow_path_jgreatereq)
+
+
+_llint_op_jngreatereq:
+ traceExecution()
+ compare(
+ macro (left, right, target) bilt left, right, target end,
+ macro (left, right, target) bdltun left, right, target end,
+ _llint_slow_path_jngreatereq)
+
+
+_llint_op_loop_hint:
+ traceExecution()
+ checkSwitchToJITForLoop()
+ dispatch(1)
+
+
+_llint_op_switch_string:
+ traceExecution()
+ callSlowPath(_llint_slow_path_switch_string)
+ dispatch(0)
+
+
+_llint_op_new_func_exp:
+ traceExecution()
+ callSlowPath(_llint_slow_path_new_func_exp)
+ dispatch(3)
+
+
+_llint_op_call:
+ traceExecution()
+ doCall(_llint_slow_path_call)
+
+
+_llint_op_construct:
+ traceExecution()
+ doCall(_llint_slow_path_construct)
+
+
+_llint_op_call_varargs:
+ traceExecution()
+ slowPathForCall(6, _llint_slow_path_call_varargs)
+
+
+_llint_op_call_eval:
+ traceExecution()
+
+ # Eval is executed in one of two modes:
+ #
+ # 1) We find that we're really invoking eval() in which case the
+ # execution is perfomed entirely inside the slow_path, and it
+ # returns the PC of a function that just returns the return value
+ # that the eval returned.
+ #
+ # 2) We find that we're invoking something called eval() that is not
+ # the real eval. Then the slow_path returns the PC of the thing to
+ # call, and we call it.
+ #
+ # This allows us to handle two cases, which would require a total of
+ # up to four pieces of state that cannot be easily packed into two
+ # registers (C functions can return up to two registers, easily):
+ #
+ # - The call frame register. This may or may not have been modified
+ # by the slow_path, but the convention is that it returns it. It's not
+ # totally clear if that's necessary, since the cfr is callee save.
+ # But that's our style in this here interpreter so we stick with it.
+ #
+ # - A bit to say if the slow_path successfully executed the eval and has
+ # the return value, or did not execute the eval but has a PC for us
+ # to call.
+ #
+ # - Either:
+ # - The JS return value (two registers), or
+ #
+ # - The PC to call.
+ #
+ # It turns out to be easier to just always have this return the cfr
+ # and a PC to call, and that PC may be a dummy thunk that just
+ # returns the JS value that the eval returned.
+
+ slowPathForCall(4, _llint_slow_path_call_eval)
+
+
+_llint_generic_return_point:
+ dispatchAfterCall()
+
+
+_llint_op_strcat:
+ traceExecution()
+ callSlowPath(_llint_slow_path_strcat)
+ dispatch(4)
+
+
+_llint_op_method_check:
+ traceExecution()
+ # We ignore method checks and use normal get_by_id optimizations.
+ dispatch(1)
+
+
+_llint_op_get_pnames:
+ traceExecution()
+ callSlowPath(_llint_slow_path_get_pnames)
+ dispatch(0) # The slow_path either advances the PC or jumps us to somewhere else.
+
+
+_llint_op_push_scope:
+ traceExecution()
+ callSlowPath(_llint_slow_path_push_scope)
+ dispatch(2)
+
+
+_llint_op_pop_scope:
+ traceExecution()
+ callSlowPath(_llint_slow_path_pop_scope)
+ dispatch(1)
+
+
+_llint_op_push_new_scope:
+ traceExecution()
+ callSlowPath(_llint_slow_path_push_new_scope)
+ dispatch(4)
+
+
+_llint_op_throw:
+ traceExecution()
+ callSlowPath(_llint_slow_path_throw)
+ dispatch(2)
+
+
+_llint_op_throw_reference_error:
+ traceExecution()
+ callSlowPath(_llint_slow_path_throw_reference_error)
+ dispatch(2)
+
+
+_llint_op_profile_will_call:
+ traceExecution()
+ loadp JITStackFrame::enabledProfilerReference[sp], t0
+ btpz [t0], .opProfileWillCallDone
+ callSlowPath(_llint_slow_path_profile_will_call)
+.opProfileWillCallDone:
+ dispatch(2)
+
+
+_llint_op_profile_did_call:
+ traceExecution()
+ loadp JITStackFrame::enabledProfilerReference[sp], t0
+ btpz [t0], .opProfileWillCallDone
+ callSlowPath(_llint_slow_path_profile_did_call)
+.opProfileDidCallDone:
+ dispatch(2)
+
+
+_llint_op_debug:
+ traceExecution()
+ callSlowPath(_llint_slow_path_debug)
+ dispatch(4)
+
+
+_llint_native_call_trampoline:
+ nativeCallTrampoline(NativeExecutable::m_function)
+
+
+_llint_native_construct_trampoline:
+ nativeCallTrampoline(NativeExecutable::m_constructor)
+
+
+# Lastly, make sure that we can link even though we don't support all opcodes.
+# These opcodes should never arise when using LLInt or either JIT. We assert
+# as much.
+
+macro notSupported()
+ if ASSERT_ENABLED
+ crash()
+ else
+ # We should use whatever the smallest possible instruction is, just to
+ # ensure that there is a gap between instruction labels. If multiple
+ # smallest instructions exist, we should pick the one that is most
+ # likely result in execution being halted. Currently that is the break
+ # instruction on all architectures we're interested in. (Break is int3
+ # on Intel, which is 1 byte, and bkpt on ARMv7, which is 2 bytes.)
+ break
+ end
+end
+
+_llint_op_get_array_length:
+ notSupported()
+
+_llint_op_get_by_id_chain:
+ notSupported()
+
+_llint_op_get_by_id_custom_chain:
+ notSupported()
+
+_llint_op_get_by_id_custom_proto:
+ notSupported()
+
+_llint_op_get_by_id_custom_self:
+ notSupported()
+
+_llint_op_get_by_id_generic:
+ notSupported()
+
+_llint_op_get_by_id_getter_chain:
+ notSupported()
+
+_llint_op_get_by_id_getter_proto:
+ notSupported()
+
+_llint_op_get_by_id_getter_self:
+ notSupported()
+
+_llint_op_get_by_id_proto:
+ notSupported()
+
+_llint_op_get_by_id_self:
+ notSupported()
+
+_llint_op_get_string_length:
+ notSupported()
+
+_llint_op_put_by_id_generic:
+ notSupported()
+
+_llint_op_put_by_id_replace:
+ notSupported()
+
+_llint_op_put_by_id_transition:
+ notSupported()
+
+
+# Indicate the end of LLInt.
+_llint_end:
+ crash()
+
projects / apple / javascriptcore.git / blobdiff