diff options
Diffstat (limited to 'lib/ruby_vm/mjit/insn_compiler.rb')
| -rw-r--r-- | lib/ruby_vm/mjit/insn_compiler.rb | 3970 |
1 files changed, 0 insertions, 3970 deletions
diff --git a/lib/ruby_vm/mjit/insn_compiler.rb b/lib/ruby_vm/mjit/insn_compiler.rb deleted file mode 100644 index 07670daed1..0000000000 --- a/lib/ruby_vm/mjit/insn_compiler.rb +++ /dev/null @@ -1,3970 +0,0 @@ -module RubyVM::MJIT - class InsnCompiler - # @param ocb [CodeBlock] - # @param exit_compiler [RubyVM::MJIT::ExitCompiler] - def initialize(cb, ocb, exit_compiler) - @ocb = ocb - @exit_compiler = exit_compiler - - @full_cfunc_return = Assembler.new.then do |asm| - @exit_compiler.compile_full_cfunc_return(asm) - @ocb.write(asm) - end - - @cfunc_codegen_table = {} - register_cfunc_codegen_funcs - # freeze # workaround a binding.irb issue. TODO: resurrect this - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - # @param insn `RubyVM::MJIT::Instruction` - def compile(jit, ctx, asm, insn) - asm.incr_counter(:mjit_insns_count) - asm.comment("Insn: #{insn.name}") - - # 72/101 - case insn.name - when :nop then nop(jit, ctx, asm) - when :getlocal then getlocal(jit, ctx, asm) - when :setlocal then setlocal(jit, ctx, asm) - when :getblockparam then getblockparam(jit, ctx, asm) - # setblockparam - when :getblockparamproxy then getblockparamproxy(jit, ctx, asm) - # getspecial - # setspecial - when :getinstancevariable then getinstancevariable(jit, ctx, asm) - when :setinstancevariable then setinstancevariable(jit, ctx, asm) - when :getclassvariable then getclassvariable(jit, ctx, asm) - # setclassvariable - when :opt_getconstant_path then opt_getconstant_path(jit, ctx, asm) - when :getconstant then getconstant(jit, ctx, asm) - # setconstant - # getglobal - # setglobal - when :putnil then putnil(jit, ctx, asm) - when :putself then putself(jit, ctx, asm) - when :putobject then putobject(jit, ctx, asm) - # putspecialobject - when :putstring then putstring(jit, ctx, asm) - when :concatstrings then concatstrings(jit, ctx, asm) - when :anytostring then anytostring(jit, ctx, asm) - # toregexp - # intern - when :newarray then newarray(jit, ctx, asm) - # newarraykwsplat - when :duparray then duparray(jit, ctx, asm) - # duphash - when :expandarray then expandarray(jit, ctx, asm) - when :concatarray then concatarray(jit, ctx, asm) - when :splatarray then splatarray(jit, ctx, asm) - when :newhash then newhash(jit, ctx, asm) - # newrange - when :pop then pop(jit, ctx, asm) - when :dup then dup(jit, ctx, asm) - when :dupn then dupn(jit, ctx, asm) - when :swap then swap(jit, ctx, asm) - # opt_reverse - when :topn then topn(jit, ctx, asm) - when :setn then setn(jit, ctx, asm) - when :adjuststack then adjuststack(jit, ctx, asm) - when :defined then defined(jit, ctx, asm) - # checkmatch - # checkkeyword - # checktype - # defineclass - # definemethod - # definesmethod - when :send then send(jit, ctx, asm) - when :opt_send_without_block then opt_send_without_block(jit, ctx, asm) - when :objtostring then objtostring(jit, ctx, asm) - when :opt_str_freeze then opt_str_freeze(jit, ctx, asm) - when :opt_nil_p then opt_nil_p(jit, ctx, asm) - # opt_str_uminus - # opt_newarray_max - when :opt_newarray_min then opt_newarray_min(jit, ctx, asm) - when :invokesuper then invokesuper(jit, ctx, asm) - # invokeblock - when :leave then leave(jit, ctx, asm) - # throw - when :jump then jump(jit, ctx, asm) - when :branchif then branchif(jit, ctx, asm) - when :branchunless then branchunless(jit, ctx, asm) - when :branchnil then branchnil(jit, ctx, asm) - # once - when :opt_case_dispatch then opt_case_dispatch(jit, ctx, asm) - when :opt_plus then opt_plus(jit, ctx, asm) - when :opt_minus then opt_minus(jit, ctx, asm) - when :opt_mult then opt_mult(jit, ctx, asm) - when :opt_div then opt_div(jit, ctx, asm) - when :opt_mod then opt_mod(jit, ctx, asm) - when :opt_eq then opt_eq(jit, ctx, asm) - when :opt_neq then opt_neq(jit, ctx, asm) - when :opt_lt then opt_lt(jit, ctx, asm) - when :opt_le then opt_le(jit, ctx, asm) - when :opt_gt then opt_gt(jit, ctx, asm) - when :opt_ge then opt_ge(jit, ctx, asm) - when :opt_ltlt then opt_ltlt(jit, ctx, asm) - when :opt_and then opt_and(jit, ctx, asm) - when :opt_or then opt_or(jit, ctx, asm) - when :opt_aref then opt_aref(jit, ctx, asm) - when :opt_aset then opt_aset(jit, ctx, asm) - # opt_aset_with - # opt_aref_with - when :opt_length then opt_length(jit, ctx, asm) - when :opt_size then opt_size(jit, ctx, asm) - when :opt_empty_p then opt_empty_p(jit, ctx, asm) - when :opt_succ then opt_succ(jit, ctx, asm) - when :opt_not then opt_not(jit, ctx, asm) - when :opt_regexpmatch2 then opt_regexpmatch2(jit, ctx, asm) - # invokebuiltin - when :opt_invokebuiltin_delegate then opt_invokebuiltin_delegate(jit, ctx, asm) - when :opt_invokebuiltin_delegate_leave then opt_invokebuiltin_delegate_leave(jit, ctx, asm) - when :getlocal_WC_0 then getlocal_WC_0(jit, ctx, asm) - when :getlocal_WC_1 then getlocal_WC_1(jit, ctx, asm) - when :setlocal_WC_0 then setlocal_WC_0(jit, ctx, asm) - when :setlocal_WC_1 then setlocal_WC_1(jit, ctx, asm) - when :putobject_INT2FIX_0_ then putobject_INT2FIX_0_(jit, ctx, asm) - when :putobject_INT2FIX_1_ then putobject_INT2FIX_1_(jit, ctx, asm) - else CantCompile - end - end - - private - - # - # Insns - # - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def nop(jit, ctx, asm) - # Do nothing - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getlocal(jit, ctx, asm) - idx = jit.operand(0) - level = jit.operand(1) - jit_getlocal_generic(jit, ctx, asm, idx:, level:) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def setlocal(jit, ctx, asm) - idx = jit.operand(0) - level = jit.operand(1) - jit_setlocal_generic(jit, ctx, asm, idx:, level:) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getblockparam(jit, ctx, asm) - # EP level - level = jit.operand(1) - - # Save the PC and SP because we might allocate - jit_prepare_routine_call(jit, ctx, asm) - - # A mirror of the interpreter code. Checking for the case - # where it's pushing rb_block_param_proxy. - side_exit = side_exit(jit, ctx) - - # Load environment pointer EP from CFP - ep_reg = :rax - jit_get_ep(asm, level, reg: ep_reg) - - # Bail when VM_ENV_FLAGS(ep, VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM) is non zero - # FIXME: This is testing bits in the same place that the WB check is testing. - # We should combine these at some point - asm.test([ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS], C.VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM) - - # If the frame flag has been modified, then the actual proc value is - # already in the EP and we should just use the value. - frame_flag_modified = asm.new_label('frame_flag_modified') - asm.jnz(frame_flag_modified) - - # This instruction writes the block handler to the EP. If we need to - # fire a write barrier for the write, then exit (we'll let the - # interpreter handle it so it can fire the write barrier). - # flags & VM_ENV_FLAG_WB_REQUIRED - asm.test([ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS], C.VM_ENV_FLAG_WB_REQUIRED) - - # if (flags & VM_ENV_FLAG_WB_REQUIRED) != 0 - asm.jnz(side_exit) - - # Convert the block handler in to a proc - # call rb_vm_bh_to_procval(const rb_execution_context_t *ec, VALUE block_handler) - asm.mov(C_ARGS[0], EC) - # The block handler for the current frame - # note, VM_ASSERT(VM_ENV_LOCAL_P(ep)) - asm.mov(C_ARGS[1], [ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_SPECVAL]) - asm.call(C.rb_vm_bh_to_procval) - - # Load environment pointer EP from CFP (again) - ep_reg = :rcx - jit_get_ep(asm, level, reg: ep_reg) - - # Write the value at the environment pointer - idx = jit.operand(0) - offs = -(C.VALUE.size * idx) - asm.mov([ep_reg, offs], C_RET); - - # Set the frame modified flag - asm.mov(:rax, [ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS]) # flag_check - asm.or(:rax, C.VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM) # modified_flag - asm.mov([ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS], :rax) - - asm.write_label(frame_flag_modified) - - # Push the proc on the stack - stack_ret = ctx.stack_push - ep_reg = :rax - jit_get_ep(asm, level, reg: ep_reg) - asm.mov(:rax, [ep_reg, offs]) - asm.mov(stack_ret, :rax) - - KeepCompiling - end - - # setblockparam - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getblockparamproxy(jit, ctx, asm) - # To get block_handler - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - starting_context = ctx.dup # make a copy for use with jit_chain_guard - - # A mirror of the interpreter code. Checking for the case - # where it's pushing rb_block_param_proxy. - side_exit = side_exit(jit, ctx) - - # EP level - level = jit.operand(1) - - # Peek at the block handler so we can check whether it's nil - comptime_handler = jit.peek_at_block_handler(level) - - # When a block handler is present, it should always be a GC-guarded - # pointer (VM_BH_ISEQ_BLOCK_P) - if comptime_handler != 0 && comptime_handler & 0x3 != 0x1 - asm.incr_counter(:getblockpp_not_gc_guarded) - return CantCompile - end - - # Load environment pointer EP from CFP - ep_reg = :rax - jit_get_ep(asm, level, reg: ep_reg) - - # Bail when VM_ENV_FLAGS(ep, VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM) is non zero - asm.test([ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS], C.VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM) - asm.jnz(counted_exit(side_exit, :getblockpp_block_param_modified)) - - # Load the block handler for the current frame - # note, VM_ASSERT(VM_ENV_LOCAL_P(ep)) - block_handler = :rax - asm.mov(block_handler, [ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_SPECVAL]) - - # Specialize compilation for the case where no block handler is present - if comptime_handler == 0 - # Bail if there is a block handler - asm.cmp(block_handler, 0) - - jit_chain_guard(:jnz, jit, starting_context, asm, counted_exit(side_exit, :getblockpp_block_handler_none)) - - putobject(jit, ctx, asm, val: Qnil) - else - # Block handler is a tagged pointer. Look at the tag. 0x03 is from VM_BH_ISEQ_BLOCK_P(). - asm.and(block_handler, 0x3) - - # Bail unless VM_BH_ISEQ_BLOCK_P(bh). This also checks for null. - asm.cmp(block_handler, 0x1) - - jit_chain_guard(:jnz, jit, starting_context, asm, counted_exit(side_exit, :getblockpp_not_iseq_block)) - - # Push rb_block_param_proxy. It's a root, so no need to use jit_mov_gc_ptr. - top = ctx.stack_push - asm.mov(:rax, C.rb_block_param_proxy) - asm.mov(top, :rax) - end - - jump_to_next_insn(jit, ctx, asm) - - EndBlock - end - - # getspecial - # setspecial - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getinstancevariable(jit, ctx, asm) - # Specialize on a compile-time receiver, and split a block for chain guards - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - id = jit.operand(0) - comptime_obj = jit.peek_at_self - - jit_getivar(jit, ctx, asm, comptime_obj, id) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def setinstancevariable(jit, ctx, asm) - starting_context = ctx.dup # make a copy for use with jit_chain_guard - - # Defer compilation so we can specialize on a runtime `self` - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - ivar_name = jit.operand(0) - comptime_receiver = jit.peek_at_self - - # If the comptime receiver is frozen, writing an IV will raise an exception - # and we don't want to JIT code to deal with that situation. - if C.rb_obj_frozen_p(comptime_receiver) - asm.incr_counter(:setivar_frozen) - return CantCompile - end - - # Check if the comptime receiver is a T_OBJECT - receiver_t_object = C.BUILTIN_TYPE(comptime_receiver) == C.T_OBJECT - - # If the receiver isn't a T_OBJECT, or uses a custom allocator, - # then just write out the IV write as a function call. - # too-complex shapes can't use index access, so we use rb_ivar_get for them too. - if !receiver_t_object || shape_too_complex?(comptime_receiver) || ctx.chain_depth >= 10 - asm.comment('call rb_vm_setinstancevariable') - - ic = jit.operand(1) - - # The function could raise exceptions. - # Note that this modifies REG_SP, which is why we do it first - jit_prepare_routine_call(jit, ctx, asm) - - # Get the operands from the stack - val_opnd = ctx.stack_pop(1) - - # Call rb_vm_setinstancevariable(iseq, obj, id, val, ic); - asm.mov(:rdi, jit.iseq.to_i) - asm.mov(:rsi, [CFP, C.rb_control_frame_t.offsetof(:self)]) - asm.mov(:rdx, ivar_name) - asm.mov(:rcx, val_opnd) - asm.mov(:r8, ic) - asm.call(C.rb_vm_setinstancevariable) - else - # Get the iv index - shape_id = C.rb_shape_get_shape_id(comptime_receiver) - ivar_index = C.rb_shape_get_iv_index(shape_id, ivar_name) - - # Get the receiver - asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:self)]) - - # Generate a side exit - side_exit = side_exit(jit, ctx) - - # Upgrade type - guard_object_is_heap(asm, :rax, counted_exit(side_exit, :setivar_not_heap)) - - asm.comment('guard shape') - asm.cmp(DwordPtr[:rax, C.rb_shape_id_offset], shape_id) - megamorphic_side_exit = counted_exit(side_exit, :setivar_megamorphic) - jit_chain_guard(:jne, jit, starting_context, asm, megamorphic_side_exit) - - # If we don't have an instance variable index, then we need to - # transition out of the current shape. - if ivar_index.nil? - shape = C.rb_shape_get_shape_by_id(shape_id) - - current_capacity = shape.capacity - new_capacity = current_capacity * 2 - - # If the object doesn't have the capacity to store the IV, - # then we'll need to allocate it. - needs_extension = shape.next_iv_index >= current_capacity - - # We can write to the object, but we need to transition the shape - ivar_index = shape.next_iv_index - - capa_shape = - if needs_extension - # We need to add an extended table to the object - # First, create an outgoing transition that increases the capacity - C.rb_shape_transition_shape_capa(shape, new_capacity) - else - nil - end - - dest_shape = - if capa_shape - C.rb_shape_get_next(capa_shape, comptime_receiver, ivar_name) - else - C.rb_shape_get_next(shape, comptime_receiver, ivar_name) - end - new_shape_id = C.rb_shape_id(dest_shape) - - if new_shape_id == C.OBJ_TOO_COMPLEX_SHAPE_ID - asm.incr_counter(:setivar_too_complex) - return CantCompile - end - - if needs_extension - # Generate the C call so that runtime code will increase - # the capacity and set the buffer. - asm.mov(C_ARGS[0], :rax) - asm.mov(C_ARGS[1], current_capacity) - asm.mov(C_ARGS[2], new_capacity) - asm.call(C.rb_ensure_iv_list_size) - - # Load the receiver again after the function call - asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:self)]) - end - - write_val = ctx.stack_pop(1) - jit_write_iv(asm, comptime_receiver, :rax, :rcx, ivar_index, write_val, needs_extension) - - # Store the new shape - asm.comment('write shape') - asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:self)]) # reload after jit_write_iv - asm.mov(DwordPtr[:rax, C.rb_shape_id_offset], new_shape_id) - else - # If the iv index already exists, then we don't need to - # transition to a new shape. The reason is because we find - # the iv index by searching up the shape tree. If we've - # made the transition already, then there's no reason to - # update the shape on the object. Just set the IV. - write_val = ctx.stack_pop(1) - jit_write_iv(asm, comptime_receiver, :rax, :rcx, ivar_index, write_val, false) - end - - skip_wb = asm.new_label('skip_wb') - # If the value we're writing is an immediate, we don't need to WB - asm.test(write_val, C.RUBY_IMMEDIATE_MASK) - asm.jnz(skip_wb) - - # If the value we're writing is nil or false, we don't need to WB - asm.cmp(write_val, Qnil) - asm.jbe(skip_wb) - - asm.comment('write barrier') - asm.mov(C_ARGS[0], [CFP, C.rb_control_frame_t.offsetof(:self)]) # reload after jit_write_iv - asm.mov(C_ARGS[1], write_val) - asm.call(C.rb_gc_writebarrier) - - asm.write_label(skip_wb) - end - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getclassvariable(jit, ctx, asm) - # rb_vm_getclassvariable can raise exceptions. - jit_prepare_routine_call(jit, ctx, asm) - - asm.mov(C_ARGS[0], [CFP, C.rb_control_frame_t.offsetof(:iseq)]) - asm.mov(C_ARGS[1], CFP) - asm.mov(C_ARGS[2], jit.operand(0)) - asm.mov(C_ARGS[3], jit.operand(1)) - asm.call(C.rb_vm_getclassvariable) - - top = ctx.stack_push - asm.mov(top, C_RET) - - KeepCompiling - end - - # setclassvariable - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_getconstant_path(jit, ctx, asm) - # Cut the block for invalidation - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - ic = C.iseq_inline_constant_cache.new(jit.operand(0)) - idlist = ic.segments - - # Make sure there is an exit for this block as the interpreter might want - # to invalidate this block from rb_mjit_constant_ic_update(). - # For now, we always take an entry exit even if it was a side exit. - Invariants.ensure_block_entry_exit(jit, cause: 'opt_getconstant_path') - - # See vm_ic_hit_p(). The same conditions are checked in yjit_constant_ic_update(). - ice = ic.entry - if ice.nil? - # In this case, leave a block that unconditionally side exits - # for the interpreter to invalidate. - asm.incr_counter(:optgetconst_not_cached) - return CantCompile - end - - if ice.ic_cref # with cref - # Cache is keyed on a certain lexical scope. Use the interpreter's cache. - side_exit = side_exit(jit, ctx) - - # Call function to verify the cache. It doesn't allocate or call methods. - asm.mov(C_ARGS[0], ic.to_i) - asm.mov(C_ARGS[1], [CFP, C.rb_control_frame_t.offsetof(:ep)]) - asm.call(C.rb_vm_ic_hit_p) - - # Check the result. SysV only specifies one byte for _Bool return values, - # so it's important we only check one bit to ignore the higher bits in the register. - asm.test(C_RET, 1) - asm.jz(counted_exit(side_exit, :optgetconst_cache_miss)) - - asm.mov(:rax, ic.to_i) # inline_cache - asm.mov(:rax, [:rax, C.iseq_inline_constant_cache.offsetof(:entry)]) # ic_entry - asm.mov(:rax, [:rax, C.iseq_inline_constant_cache_entry.offsetof(:value)]) # ic_entry_val - - # Push ic->entry->value - stack_top = ctx.stack_push - asm.mov(stack_top, :rax) - else # without cref - # TODO: implement this - # Optimize for single ractor mode. - # if !assume_single_ractor_mode(jit, ocb) - # return CantCompile - # end - - # Invalidate output code on any constant writes associated with - # constants referenced within the current block. - Invariants.assume_stable_constant_names(jit, idlist) - - putobject(jit, ctx, asm, val: ice.value) - end - - jump_to_next_insn(jit, ctx, asm) - EndBlock - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getconstant(jit, ctx, asm) - id = jit.operand(0) - - # vm_get_ev_const can raise exceptions. - jit_prepare_routine_call(jit, ctx, asm) - - allow_nil_opnd = ctx.stack_pop(1) - klass_opnd = ctx.stack_pop(1) - - asm.mov(C_ARGS[0], EC) - asm.mov(C_ARGS[1], klass_opnd) - asm.mov(C_ARGS[2], id) - asm.mov(C_ARGS[3], allow_nil_opnd) - asm.call(C.rb_vm_get_ev_const) - - top = ctx.stack_push - asm.mov(top, C_RET) - - KeepCompiling - end - - # setconstant - # getglobal - # setglobal - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def putnil(jit, ctx, asm) - putobject(jit, ctx, asm, val: Qnil) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def putself(jit, ctx, asm) - stack_top = ctx.stack_push - asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:self)]) - asm.mov(stack_top, :rax) - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def putobject(jit, ctx, asm, val: jit.operand(0)) - # Push it to the stack - stack_top = ctx.stack_push - if asm.imm32?(val) - asm.mov(stack_top, val) - else # 64-bit immediates can't be directly written to memory - asm.mov(:rax, val) - asm.mov(stack_top, :rax) - end - # TODO: GC offsets? - - KeepCompiling - end - - # putspecialobject - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def putstring(jit, ctx, asm) - put_val = jit.operand(0, ruby: true) - - # Save the PC and SP because the callee will allocate - jit_prepare_routine_call(jit, ctx, asm) - - asm.mov(C_ARGS[0], EC) - asm.mov(C_ARGS[1], to_value(put_val)) - asm.call(C.rb_ec_str_resurrect) - - stack_top = ctx.stack_push - asm.mov(stack_top, C_RET) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def concatstrings(jit, ctx, asm) - n = jit.operand(0) - - # Save the PC and SP because we are allocating - jit_prepare_routine_call(jit, ctx, asm) - - asm.lea(:rax, ctx.sp_opnd(-C.VALUE.size * n)) - - # call rb_str_concat_literals(size_t n, const VALUE *strings); - asm.mov(C_ARGS[0], n) - asm.mov(C_ARGS[1], :rax) - asm.call(C.rb_str_concat_literals) - - ctx.stack_pop(n) - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def anytostring(jit, ctx, asm) - # Save the PC and SP since we might call #to_s - jit_prepare_routine_call(jit, ctx, asm) - - str = ctx.stack_pop(1) - val = ctx.stack_pop(1) - - asm.mov(C_ARGS[0], str) - asm.mov(C_ARGS[1], val) - asm.call(C.rb_obj_as_string_result) - - # Push the return value - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # toregexp - # intern - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def newarray(jit, ctx, asm) - n = jit.operand(0) - - # Save the PC and SP because we are allocating - jit_prepare_routine_call(jit, ctx, asm) - - # If n is 0, then elts is never going to be read, so we can just pass null - if n == 0 - values_ptr = 0 - else - asm.comment('load pointer to array elts') - offset_magnitude = C.VALUE.size * n - values_opnd = ctx.sp_opnd(-(offset_magnitude)) - asm.lea(:rax, values_opnd) - values_ptr = :rax - end - - # call rb_ec_ary_new_from_values(struct rb_execution_context_struct *ec, long n, const VALUE *elts); - asm.mov(C_ARGS[0], EC) - asm.mov(C_ARGS[1], n) - asm.mov(C_ARGS[2], values_ptr) - asm.call(C.rb_ec_ary_new_from_values) - - ctx.stack_pop(n) - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # newarraykwsplat - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def duparray(jit, ctx, asm) - ary = jit.operand(0) - - # Save the PC and SP because we are allocating - jit_prepare_routine_call(jit, ctx, asm) - - # call rb_ary_resurrect(VALUE ary); - asm.comment('call rb_ary_resurrect') - asm.mov(C_ARGS[0], ary) - asm.call(C.rb_ary_resurrect) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # duphash - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def expandarray(jit, ctx, asm) - # Both arguments are rb_num_t which is unsigned - num = jit.operand(0) - flag = jit.operand(1) - - # If this instruction has the splat flag, then bail out. - if flag & 0x01 != 0 - asm.incr_counter(:expandarray_splat) - return CantCompile - end - - # If this instruction has the postarg flag, then bail out. - if flag & 0x02 != 0 - asm.incr_counter(:expandarray_postarg) - return CantCompile - end - - side_exit = side_exit(jit, ctx) - - array_opnd = ctx.stack_pop(1) - - # num is the number of requested values. If there aren't enough in the - # array then we're going to push on nils. - # TODO: implement this - - # Move the array from the stack and check that it's an array. - asm.mov(:rax, array_opnd) - guard_object_is_heap(asm, :rax, counted_exit(side_exit, :expandarray_not_array)) - guard_object_is_array(asm, :rax, :rcx, counted_exit(side_exit, :expandarray_not_array)) - - # If we don't actually want any values, then just return. - if num == 0 - return KeepCompiling - end - - jit_array_len(asm, :rax, :rcx) - - # Only handle the case where the number of values in the array is greater - # than or equal to the number of values requested. - asm.cmp(:rcx, num) - asm.jl(counted_exit(side_exit, :expandarray_rhs_too_small)) - - # Conditionally load the address of the heap array into REG1. - # (struct RArray *)(obj)->as.heap.ptr - #asm.mov(:rax, array_opnd) - asm.mov(:rcx, [:rax, C.RBasic.offsetof(:flags)]) - asm.test(:rcx, C.RARRAY_EMBED_FLAG); - asm.mov(:rcx, [:rax, C.RArray.offsetof(:as, :heap, :ptr)]) - - # Load the address of the embedded array into REG1. - # (struct RArray *)(obj)->as.ary - asm.lea(:rax, [:rax, C.RArray.offsetof(:as, :ary)]) - - asm.cmovnz(:rcx, :rax) - - # Loop backward through the array and push each element onto the stack. - (num - 1).downto(0).each do |i| - top = ctx.stack_push - asm.mov(:rax, [:rcx, i * C.VALUE.size]) - asm.mov(top, :rax) - end - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def concatarray(jit, ctx, asm) - # Save the PC and SP because the callee may allocate - # Note that this modifies REG_SP, which is why we do it first - jit_prepare_routine_call(jit, ctx, asm) - - # Get the operands from the stack - ary2st_opnd = ctx.stack_pop(1) - ary1_opnd = ctx.stack_pop(1) - - # Call rb_vm_concat_array(ary1, ary2st) - asm.mov(C_ARGS[0], ary1_opnd) - asm.mov(C_ARGS[1], ary2st_opnd) - asm.call(C.rb_vm_concat_array) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def splatarray(jit, ctx, asm) - flag = jit.operand(0) - - # Save the PC and SP because the callee may allocate - # Note that this modifies REG_SP, which is why we do it first - jit_prepare_routine_call(jit, ctx, asm) - - # Get the operands from the stack - ary_opnd = ctx.stack_pop(1) - - # Call rb_vm_splat_array(flag, ary) - asm.mov(C_ARGS[0], flag) - asm.mov(C_ARGS[1], ary_opnd) - asm.call(C.rb_vm_splat_array) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def newhash(jit, ctx, asm) - num = jit.operand(0) - - # Save the PC and SP because we are allocating - jit_prepare_routine_call(jit, ctx, asm) - - if num != 0 - # val = rb_hash_new_with_size(num / 2); - asm.mov(C_ARGS[0], num / 2) - asm.call(C.rb_hash_new_with_size) - - # Save the allocated hash as we want to push it after insertion - asm.push(C_RET) - asm.push(C_RET) # x86 alignment - - # Get a pointer to the values to insert into the hash - asm.lea(:rcx, ctx.stack_opnd(num - 1)) - - # rb_hash_bulk_insert(num, STACK_ADDR_FROM_TOP(num), val); - asm.mov(C_ARGS[0], num) - asm.mov(C_ARGS[1], :rcx) - asm.mov(C_ARGS[2], C_RET) - asm.call(C.rb_hash_bulk_insert) - - asm.pop(:rax) - asm.pop(:rax) - - ctx.stack_pop(num) - stack_ret = ctx.stack_push - asm.mov(stack_ret, :rax) - else - # val = rb_hash_new(); - asm.call(C.rb_hash_new) - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - end - - KeepCompiling - end - - # newrange - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def pop(jit, ctx, asm) - ctx.stack_pop - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def dup(jit, ctx, asm) - val1 = ctx.stack_opnd(0) - val2 = ctx.stack_push - asm.mov(:rax, val1) - asm.mov(val2, :rax) - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def dupn(jit, ctx, asm) - n = jit.operand(0) - - # In practice, seems to be only used for n==2 - if n != 2 - return CantCompile - end - - opnd1 = ctx.stack_opnd(1) - opnd0 = ctx.stack_opnd(0) - - dst1 = ctx.stack_push - asm.mov(:rax, opnd1) - asm.mov(dst1, :rax) - - dst0 = ctx.stack_push - asm.mov(:rax, opnd0) - asm.mov(dst0, :rax) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def swap(jit, ctx, asm) - stack0_mem = ctx.stack_opnd(0) - stack1_mem = ctx.stack_opnd(1) - - asm.mov(:rax, stack0_mem) - asm.mov(:rcx, stack1_mem) - asm.mov(stack0_mem, :rcx) - asm.mov(stack1_mem, :rax) - - KeepCompiling - end - - # opt_reverse - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def topn(jit, ctx, asm) - n = jit.operand(0) - - top_n_val = ctx.stack_opnd(n) - loc0 = ctx.stack_push - asm.mov(:rax, top_n_val) - asm.mov(loc0, :rax) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def setn(jit, ctx, asm) - n = jit.operand(0) - - top_val = ctx.stack_pop(0) - dst_opnd = ctx.stack_opnd(n) - asm.mov(:rax, top_val) - asm.mov(dst_opnd, :rax) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def adjuststack(jit, ctx, asm) - n = jit.operand(0) - ctx.stack_pop(n) - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def defined(jit, ctx, asm) - op_type = jit.operand(0) - obj = jit.operand(1, ruby: true) - pushval = jit.operand(2, ruby: true) - - # Save the PC and SP because the callee may allocate - # Note that this modifies REG_SP, which is why we do it first - jit_prepare_routine_call(jit, ctx, asm) - - # Get the operands from the stack - v_opnd = ctx.stack_pop(1) - - # Call vm_defined(ec, reg_cfp, op_type, obj, v) - asm.mov(C_ARGS[0], EC) - asm.mov(C_ARGS[1], CFP) - asm.mov(C_ARGS[2], op_type) - asm.mov(C_ARGS[3], to_value(obj)) - asm.mov(C_ARGS[4], v_opnd) - asm.call(C.rb_vm_defined) - - asm.test(C_RET, 255) - asm.mov(:rax, Qnil) - asm.mov(:rcx, to_value(pushval)) - asm.cmovnz(:rax, :rcx) - - # Push the return value onto the stack - stack_ret = ctx.stack_push - asm.mov(stack_ret, :rax) - - KeepCompiling - end - - # checkmatch - # checkkeyword - # checktype - # defineclass - # definemethod - # definesmethod - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def send(jit, ctx, asm) - # Specialize on a compile-time receiver, and split a block for chain guards - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - cd = C.rb_call_data.new(jit.operand(0)) - blockiseq = jit.operand(1) - - block_handler = jit_caller_setup_arg_block(jit, ctx, asm, cd.ci, blockiseq, false) - if block_handler == CantCompile - return CantCompile - end - - # calling->ci - mid = C.vm_ci_mid(cd.ci) - argc = C.vm_ci_argc(cd.ci) - flags = C.vm_ci_flag(cd.ci) - - # vm_sendish - cme, comptime_recv_klass = jit_search_method(jit, ctx, asm, mid, argc, flags) - if cme == CantCompile - return CantCompile - end - jit_call_general(jit, ctx, asm, mid, argc, flags, cme, block_handler, comptime_recv_klass) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_send_without_block(jit, ctx, asm, cd: C.rb_call_data.new(jit.operand(0))) - # Specialize on a compile-time receiver, and split a block for chain guards - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - # calling->ci - mid = C.vm_ci_mid(cd.ci) - argc = C.vm_ci_argc(cd.ci) - flags = C.vm_ci_flag(cd.ci) - - # vm_sendish - cme, comptime_recv_klass = jit_search_method(jit, ctx, asm, mid, argc, flags) - if cme == CantCompile - return CantCompile - end - jit_call_general(jit, ctx, asm, mid, argc, flags, cme, C.VM_BLOCK_HANDLER_NONE, comptime_recv_klass) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def objtostring(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - recv = ctx.stack_opnd(0) - comptime_recv = jit.peek_at_stack(0) - - if C.RB_TYPE_P(comptime_recv, C.RUBY_T_STRING) - side_exit = side_exit(jit, ctx) - - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_recv), recv, comptime_recv, side_exit) - # No work needed. The string value is already on the top of the stack. - KeepCompiling - else - cd = C.rb_call_data.new(jit.operand(0)) - opt_send_without_block(jit, ctx, asm, cd:) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_str_freeze(jit, ctx, asm) - unless Invariants.assume_bop_not_redefined(jit, C.STRING_REDEFINED_OP_FLAG, C.BOP_FREEZE) - return CantCompile; - end - - str = jit.operand(0, ruby: true) - - # Push the return value onto the stack - stack_ret = ctx.stack_push - asm.mov(:rax, to_value(str)) - asm.mov(stack_ret, :rax) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_nil_p(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # opt_str_uminus - # opt_newarray_max - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_newarray_min(jit, ctx, asm) - num = jit.operand(0) - - # Save the PC and SP because we may allocate - jit_prepare_routine_call(jit, ctx, asm) - - offset_magnitude = C.VALUE.size * num - values_opnd = ctx.sp_opnd(-offset_magnitude) - asm.lea(:rax, values_opnd) - - asm.mov(C_ARGS[0], EC) - asm.mov(C_ARGS[1], num) - asm.mov(C_ARGS[2], :rax) - asm.call(C.rb_vm_opt_newarray_min) - - ctx.stack_pop(num) - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def invokesuper(jit, ctx, asm) - # Specialize on a compile-time receiver, and split a block for chain guards - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - cd = C.rb_call_data.new(jit.operand(0)) - blockiseq = jit.operand(1) - - block_handler = jit_caller_setup_arg_block(jit, ctx, asm, cd.ci, blockiseq, true) - if block_handler == CantCompile - return CantCompile - end - - # calling->ci - mid = C.vm_ci_mid(cd.ci) - argc = C.vm_ci_argc(cd.ci) - flags = C.vm_ci_flag(cd.ci) - - # vm_sendish - cme = jit_search_super_method(jit, ctx, asm, mid, argc, flags) - if cme == CantCompile - return CantCompile - end - jit_call_general(jit, ctx, asm, mid, argc, flags, cme, block_handler, nil) - end - - # invokeblock - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def leave(jit, ctx, asm) - assert_equal(ctx.stack_size, 1) - - jit_check_ints(jit, ctx, asm) - - asm.comment('pop stack frame') - asm.lea(:rax, [CFP, C.rb_control_frame_t.size]) - asm.mov(CFP, :rax) - asm.mov([EC, C.rb_execution_context_t.offsetof(:cfp)], :rax) - - # Return a value (for compile_leave_exit) - ret_opnd = ctx.stack_pop - asm.mov(:rax, ret_opnd) - - # Set caller's SP and push a value to its stack (for JIT) - asm.mov(SP, [CFP, C.rb_control_frame_t.offsetof(:sp)]) # Note: SP is in the position after popping a receiver and arguments - asm.mov([SP], :rax) - - # Jump to cfp->jit_return - asm.jmp([CFP, -C.rb_control_frame_t.size + C.rb_control_frame_t.offsetof(:jit_return)]) - - EndBlock - end - - # throw - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jump(jit, ctx, asm) - # Check for interrupts, but only on backward branches that may create loops - jump_offset = jit.operand(0, signed: true) - if jump_offset < 0 - jit_check_ints(jit, ctx, asm) - end - - pc = jit.pc + C.VALUE.size * (jit.insn.len + jump_offset) - stub_next_block(jit.iseq, pc, ctx, asm) - EndBlock - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def branchif(jit, ctx, asm) - # Check for interrupts, but only on backward branches that may create loops - jump_offset = jit.operand(0, signed: true) - if jump_offset < 0 - jit_check_ints(jit, ctx, asm) - end - - # TODO: skip check for known truthy - - # This `test` sets ZF only for Qnil and Qfalse, which let jz jump. - val = ctx.stack_pop - asm.test(val, ~Qnil) - - # Set stubs - branch_stub = BranchStub.new( - iseq: jit.iseq, - shape: Default, - target0: BranchTarget.new(ctx:, pc: jit.pc + C.VALUE.size * (jit.insn.len + jump_offset)), # branch target - target1: BranchTarget.new(ctx:, pc: jit.pc + C.VALUE.size * jit.insn.len), # fallthrough - ) - branch_stub.target0.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, true) - @ocb.write(ocb_asm) - end - branch_stub.target1.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, false) - @ocb.write(ocb_asm) - end - - # Jump to target0 on jnz - branch_stub.compile = proc do |branch_asm| - branch_asm.comment("branchif #{branch_stub.shape}") - branch_asm.stub(branch_stub) do - case branch_stub.shape - in Default - branch_asm.jnz(branch_stub.target0.address) - branch_asm.jmp(branch_stub.target1.address) - in Next0 - branch_asm.jz(branch_stub.target1.address) - in Next1 - branch_asm.jnz(branch_stub.target0.address) - end - end - end - branch_stub.compile.call(asm) - - EndBlock - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def branchunless(jit, ctx, asm) - # Check for interrupts, but only on backward branches that may create loops - jump_offset = jit.operand(0, signed: true) - if jump_offset < 0 - jit_check_ints(jit, ctx, asm) - end - - # TODO: skip check for known truthy - - # This `test` sets ZF only for Qnil and Qfalse, which let jz jump. - val = ctx.stack_pop - asm.test(val, ~Qnil) - - # Set stubs - branch_stub = BranchStub.new( - iseq: jit.iseq, - shape: Default, - target0: BranchTarget.new(ctx:, pc: jit.pc + C.VALUE.size * (jit.insn.len + jump_offset)), # branch target - target1: BranchTarget.new(ctx:, pc: jit.pc + C.VALUE.size * jit.insn.len), # fallthrough - ) - branch_stub.target0.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, true) - @ocb.write(ocb_asm) - end - branch_stub.target1.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, false) - @ocb.write(ocb_asm) - end - - # Jump to target0 on jz - branch_stub.compile = proc do |branch_asm| - branch_asm.comment("branchunless #{branch_stub.shape}") - branch_asm.stub(branch_stub) do - case branch_stub.shape - in Default - branch_asm.jz(branch_stub.target0.address) - branch_asm.jmp(branch_stub.target1.address) - in Next0 - branch_asm.jnz(branch_stub.target1.address) - in Next1 - branch_asm.jz(branch_stub.target0.address) - end - end - end - branch_stub.compile.call(asm) - - EndBlock - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def branchnil(jit, ctx, asm) - # Check for interrupts, but only on backward branches that may create loops - jump_offset = jit.operand(0, signed: true) - if jump_offset < 0 - jit_check_ints(jit, ctx, asm) - end - - # TODO: skip check for known truthy - - val = ctx.stack_pop - asm.cmp(val, Qnil) - - # Set stubs - branch_stub = BranchStub.new( - iseq: jit.iseq, - shape: Default, - target0: BranchTarget.new(ctx:, pc: jit.pc + C.VALUE.size * (jit.insn.len + jump_offset)), # branch target - target1: BranchTarget.new(ctx:, pc: jit.pc + C.VALUE.size * jit.insn.len), # fallthrough - ) - branch_stub.target0.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, true) - @ocb.write(ocb_asm) - end - branch_stub.target1.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, false) - @ocb.write(ocb_asm) - end - - # Jump to target0 on je - branch_stub.compile = proc do |branch_asm| - branch_asm.comment("branchnil #{branch_stub.shape}") - branch_asm.stub(branch_stub) do - case branch_stub.shape - in Default - branch_asm.je(branch_stub.target0.address) - branch_asm.jmp(branch_stub.target1.address) - in Next0 - branch_asm.jne(branch_stub.target1.address) - in Next1 - branch_asm.je(branch_stub.target0.address) - end - end - end - branch_stub.compile.call(asm) - - EndBlock - end - - # once - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_case_dispatch(jit, ctx, asm) - # Just go to === branches for now - ctx.stack_pop - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_plus(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - comptime_recv = jit.peek_at_stack(1) - comptime_obj = jit.peek_at_stack(0) - - if fixnum?(comptime_recv) && fixnum?(comptime_obj) - # Generate a side exit before popping operands - side_exit = side_exit(jit, ctx) - - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_PLUS) - return CantCompile - end - - obj_opnd = ctx.stack_pop - recv_opnd = ctx.stack_pop - - asm.comment('guard recv is fixnum') # TODO: skip this with type information - asm.test(recv_opnd, C.RUBY_FIXNUM_FLAG) - asm.jz(side_exit) - - asm.comment('guard obj is fixnum') # TODO: skip this with type information - asm.test(obj_opnd, C.RUBY_FIXNUM_FLAG) - asm.jz(side_exit) - - asm.mov(:rax, recv_opnd) - asm.sub(:rax, 1) # untag - asm.mov(:rcx, obj_opnd) - asm.add(:rax, :rcx) - asm.jo(side_exit) - - dst_opnd = ctx.stack_push - asm.mov(dst_opnd, :rax) - - KeepCompiling - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_minus(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - comptime_recv = jit.peek_at_stack(1) - comptime_obj = jit.peek_at_stack(0) - - if fixnum?(comptime_recv) && fixnum?(comptime_obj) - # Generate a side exit before popping operands - side_exit = side_exit(jit, ctx) - - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_MINUS) - return CantCompile - end - - obj_opnd = ctx.stack_pop - recv_opnd = ctx.stack_pop - - asm.comment('guard recv is fixnum') # TODO: skip this with type information - asm.test(recv_opnd, C.RUBY_FIXNUM_FLAG) - asm.jz(side_exit) - - asm.comment('guard obj is fixnum') # TODO: skip this with type information - asm.test(obj_opnd, C.RUBY_FIXNUM_FLAG) - asm.jz(side_exit) - - asm.mov(:rax, recv_opnd) - asm.mov(:rcx, obj_opnd) - asm.sub(:rax, :rcx) - asm.jo(side_exit) - asm.add(:rax, 1) # re-tag - - dst_opnd = ctx.stack_push - asm.mov(dst_opnd, :rax) - - KeepCompiling - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_mult(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_div(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_mod(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - if two_fixnums_on_stack?(jit) - # Create a side-exit to fall back to the interpreter - # Note: we generate the side-exit before popping operands from the stack - side_exit = side_exit(jit, ctx) - - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_MOD) - return CantCompile - end - - # Check that both operands are fixnums - guard_two_fixnums(jit, ctx, asm, side_exit) - - # Get the operands and destination from the stack - arg1 = ctx.stack_pop(1) - arg0 = ctx.stack_pop(1) - - # Check for arg0 % 0 - asm.cmp(arg1, 0) - asm.je(side_exit) - - # Call rb_fix_mod_fix(VALUE recv, VALUE obj) - asm.mov(C_ARGS[0], arg0) - asm.mov(C_ARGS[1], arg1) - asm.call(C.rb_fix_mod_fix) - - # Push the return value onto the stack - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_eq(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - if jit_equality_specialized(jit, ctx, asm, true) - jump_to_next_insn(jit, ctx, asm) - EndBlock - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_neq(jit, ctx, asm) - # opt_neq is passed two rb_call_data as arguments: - # first for ==, second for != - neq_cd = C.rb_call_data.new(jit.operand(1)) - opt_send_without_block(jit, ctx, asm, cd: neq_cd) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_lt(jit, ctx, asm) - jit_fixnum_cmp(jit, ctx, asm, opcode: :cmovl, bop: C.BOP_LT) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_le(jit, ctx, asm) - jit_fixnum_cmp(jit, ctx, asm, opcode: :cmovle, bop: C.BOP_LE) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_gt(jit, ctx, asm) - jit_fixnum_cmp(jit, ctx, asm, opcode: :cmovg, bop: C.BOP_GT) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_ge(jit, ctx, asm) - jit_fixnum_cmp(jit, ctx, asm, opcode: :cmovge, bop: C.BOP_GE) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_ltlt(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_and(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - if two_fixnums_on_stack?(jit) - # Create a side-exit to fall back to the interpreter - # Note: we generate the side-exit before popping operands from the stack - side_exit = side_exit(jit, ctx) - - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_AND) - return CantCompile - end - - # Check that both operands are fixnums - guard_two_fixnums(jit, ctx, asm, side_exit) - - # Get the operands and destination from the stack - arg1 = ctx.stack_pop(1) - arg0 = ctx.stack_pop(1) - - asm.comment('bitwise and') - asm.mov(:rax, arg0) - asm.and(:rax, arg1) - - # Push the return value onto the stack - dst = ctx.stack_push - asm.mov(dst, :rax) - - KeepCompiling - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_or(jit, ctx, asm) - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - if two_fixnums_on_stack?(jit) - # Create a side-exit to fall back to the interpreter - # Note: we generate the side-exit before popping operands from the stack - side_exit = side_exit(jit, ctx) - - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_OR) - return CantCompile - end - - # Check that both operands are fixnums - guard_two_fixnums(jit, ctx, asm, side_exit) - - # Get the operands and destination from the stack - asm.comment('bitwise or') - arg1 = ctx.stack_pop(1) - arg0 = ctx.stack_pop(1) - - # Do the bitwise or arg0 | arg1 - asm.mov(:rax, arg0) - asm.or(:rax, arg1) - - # Push the return value onto the stack - dst = ctx.stack_push - asm.mov(dst, :rax) - - KeepCompiling - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_aref(jit, ctx, asm) - cd = C.rb_call_data.new(jit.operand(0)) - argc = C.vm_ci_argc(cd.ci) - - if argc != 1 - asm.incr_counter(:optaref_argc_not_one) - return CantCompile - end - - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - comptime_recv = jit.peek_at_stack(1) - comptime_obj = jit.peek_at_stack(0) - - side_exit = side_exit(jit, ctx) - - if C.rb_class_of(comptime_recv) == Array && fixnum?(comptime_obj) - unless Invariants.assume_bop_not_redefined(jit, C.ARRAY_REDEFINED_OP_FLAG, C.BOP_AREF) - return CantCompile - end - - idx_opnd = ctx.stack_opnd(0) - recv_opnd = ctx.stack_opnd(1) - - not_array_exit = counted_exit(side_exit, :optaref_recv_not_array) - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_recv), recv_opnd, comptime_recv, not_array_exit) - - # Bail if idx is not a FIXNUM - asm.mov(:rax, idx_opnd) - asm.test(:rax, C.RUBY_FIXNUM_FLAG) - asm.jz(counted_exit(side_exit, :optaref_arg_not_fixnum)) - - # Call VALUE rb_ary_entry_internal(VALUE ary, long offset). - # It never raises or allocates, so we don't need to write to cfp->pc. - asm.sar(:rax, 1) # Convert fixnum to int - asm.mov(C_ARGS[0], recv_opnd) - asm.mov(C_ARGS[1], :rax) - asm.call(C.rb_ary_entry_internal) - - # Pop the argument and the receiver - ctx.stack_pop(2) - - # Push the return value onto the stack - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - # Let guard chains share the same successor - jump_to_next_insn(jit, ctx, asm) - EndBlock - elsif C.rb_class_of(comptime_recv) == Hash - unless Invariants.assume_bop_not_redefined(jit, C.HASH_REDEFINED_OP_FLAG, C.BOP_AREF) - return CantCompile - end - - recv_opnd = ctx.stack_opnd(1) - - # Guard that the receiver is a Hash - not_hash_exit = counted_exit(side_exit, :optaref_recv_not_hash) - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_recv), recv_opnd, comptime_recv, not_hash_exit) - - # Prepare to call rb_hash_aref(). It might call #hash on the key. - jit_prepare_routine_call(jit, ctx, asm) - - asm.comment('call rb_hash_aref') - key_opnd = ctx.stack_opnd(0) - recv_opnd = ctx.stack_opnd(1) - asm.mov(:rdi, recv_opnd) - asm.mov(:rsi, key_opnd) - asm.call(C.rb_hash_aref) - - # Pop the key and the receiver - ctx.stack_pop(2) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - # Let guard chains share the same successor - jump_to_next_insn(jit, ctx, asm) - EndBlock - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_aset(jit, ctx, asm) - # Defer compilation so we can specialize on a runtime `self` - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - comptime_recv = jit.peek_at_stack(2) - comptime_key = jit.peek_at_stack(1) - - # Get the operands from the stack - recv = ctx.stack_opnd(2) - key = ctx.stack_opnd(1) - _val = ctx.stack_opnd(0) - - if C.rb_class_of(comptime_recv) == Array && fixnum?(comptime_key) - side_exit = side_exit(jit, ctx) - - # Guard receiver is an Array - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_recv), recv, comptime_recv, side_exit) - - # Guard key is a fixnum - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_key), key, comptime_key, side_exit) - - # We might allocate or raise - jit_prepare_routine_call(jit, ctx, asm) - - asm.comment('call rb_ary_store') - recv = ctx.stack_opnd(2) - key = ctx.stack_opnd(1) - val = ctx.stack_opnd(0) - asm.mov(:rax, key) - asm.sar(:rax, 1) # FIX2LONG(key) - asm.mov(C_ARGS[0], recv) - asm.mov(C_ARGS[1], :rax) - asm.mov(C_ARGS[2], val) - asm.call(C.rb_ary_store) - - # rb_ary_store returns void - # stored value should still be on stack - val = ctx.stack_opnd(0) - - # Push the return value onto the stack - ctx.stack_pop(3) - stack_ret = ctx.stack_push - asm.mov(:rax, val) - asm.mov(stack_ret, :rax) - - jump_to_next_insn(jit, ctx, asm) - EndBlock - elsif C.rb_class_of(comptime_recv) == Hash - side_exit = side_exit(jit, ctx) - - # Guard receiver is a Hash - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_recv), recv, comptime_recv, side_exit) - - # We might allocate or raise - jit_prepare_routine_call(jit, ctx, asm) - - # Call rb_hash_aset - recv = ctx.stack_opnd(2) - key = ctx.stack_opnd(1) - val = ctx.stack_opnd(0) - asm.mov(C_ARGS[0], recv) - asm.mov(C_ARGS[1], key) - asm.mov(C_ARGS[2], val) - asm.call(C.rb_hash_aset) - - # Push the return value onto the stack - ctx.stack_pop(3) - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - jump_to_next_insn(jit, ctx, asm) - EndBlock - else - opt_send_without_block(jit, ctx, asm) - end - end - - # opt_aset_with - # opt_aref_with - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_length(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_size(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_empty_p(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_succ(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_not(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_regexpmatch2(jit, ctx, asm) - opt_send_without_block(jit, ctx, asm) - end - - # invokebuiltin - - def opt_invokebuiltin_delegate(jit, ctx, asm) - bf = C.rb_builtin_function.new(jit.operand(0)) - bf_argc = bf.argc - start_index = jit.operand(1) - - # ec, self, and arguments - if bf_argc + 2 > C_ARGS.size - return CantCompile - end - - # If the calls don't allocate, do they need up to date PC, SP? - jit_prepare_routine_call(jit, ctx, asm) - - # Call the builtin func (ec, recv, arg1, arg2, ...) - asm.comment('call builtin func') - asm.mov(C_ARGS[0], EC) - asm.mov(C_ARGS[1], [CFP, C.rb_control_frame_t.offsetof(:self)]) - - # Copy arguments from locals - if bf_argc > 0 - # Load environment pointer EP from CFP - asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:ep)]) - - bf_argc.times do |i| - table_size = jit.iseq.body.local_table_size - offs = -table_size - C.VM_ENV_DATA_SIZE + 1 + start_index + i - asm.mov(C_ARGS[2 + i], [:rax, offs * C.VALUE.size]) - end - end - asm.call(bf.func_ptr) - - # Push the return value - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def opt_invokebuiltin_delegate_leave(jit, ctx, asm) - opt_invokebuiltin_delegate(jit, ctx, asm) - # opt_invokebuiltin_delegate is always followed by leave insn - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getlocal_WC_0(jit, ctx, asm) - # Get operands - idx = jit.operand(0) - - # Get EP - asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:ep)]) - - # Get a local variable - asm.mov(:rax, [:rax, -idx * C.VALUE.size]) - - # Push it to the stack - stack_top = ctx.stack_push - asm.mov(stack_top, :rax) - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def getlocal_WC_1(jit, ctx, asm) - idx = jit.operand(0) - jit_getlocal_generic(jit, ctx, asm, idx:, level: 1) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def setlocal_WC_0(jit, ctx, asm) - slot_idx = jit.operand(0) - - # Load environment pointer EP (level 0) from CFP - ep_reg = :rax - jit_get_ep(asm, 0, reg: ep_reg) - - # Write barriers may be required when VM_ENV_FLAG_WB_REQUIRED is set, however write barriers - # only affect heap objects being written. If we know an immediate value is being written we - # can skip this check. - - # flags & VM_ENV_FLAG_WB_REQUIRED - flags_opnd = [ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS] - asm.test(flags_opnd, C.VM_ENV_FLAG_WB_REQUIRED) - - # Create a side-exit to fall back to the interpreter - side_exit = side_exit(jit, ctx) - - # if (flags & VM_ENV_FLAG_WB_REQUIRED) != 0 - asm.jnz(side_exit) - - # Pop the value to write from the stack - stack_top = ctx.stack_pop(1) - - # Write the value at the environment pointer - asm.mov(:rcx, stack_top) - asm.mov([ep_reg, -8 * slot_idx], :rcx) - - KeepCompiling - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def setlocal_WC_1(jit, ctx, asm) - idx = jit.operand(0) - jit_setlocal_generic(jit, ctx, asm, idx:, level: 1) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def putobject_INT2FIX_0_(jit, ctx, asm) - putobject(jit, ctx, asm, val: C.to_value(0)) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def putobject_INT2FIX_1_(jit, ctx, asm) - putobject(jit, ctx, asm, val: C.to_value(1)) - end - - # - # C func - # - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_true(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 0 - asm.comment('nil? == true'); - ctx.stack_pop(1) - stack_ret = ctx.stack_push - asm.mov(stack_ret, Qtrue) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_false(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 0 - asm.comment('nil? == false'); - ctx.stack_pop(1) - stack_ret = ctx.stack_push - asm.mov(stack_ret, Qfalse) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_obj_not(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 0 - asm.comment('rb_obj_not') - - recv = ctx.stack_pop - # This `test` sets ZF only for Qnil and Qfalse, which let cmovz set. - asm.test(recv, ~Qnil) - asm.mov(:rax, Qfalse) - asm.mov(:rcx, Qtrue) - asm.cmovz(:rax, :rcx) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, :rax) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_obj_equal(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - asm.comment('equal?') - obj1 = ctx.stack_pop(1) - obj2 = ctx.stack_pop(1) - - asm.mov(:rax, obj1) - asm.mov(:rcx, obj2) - asm.cmp(:rax, :rcx) - asm.mov(:rax, Qfalse) - asm.mov(:rcx, Qtrue) - asm.cmove(:rax, :rcx) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, :rax) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_obj_not_equal(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - jit_equality_specialized(jit, ctx, asm, false) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_mod_eqq(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - - asm.comment('Module#===') - # By being here, we know that the receiver is a T_MODULE or a T_CLASS, because Module#=== can - # only live on these objects. With that, we can call rb_obj_is_kind_of() without - # jit_prepare_routine_call() or a control frame push because it can't raise, allocate, or call - # Ruby methods with these inputs. - # Note the difference in approach from Kernel#is_a? because we don't get a free guard for the - # right hand side. - lhs = ctx.stack_opnd(1) # the module - rhs = ctx.stack_opnd(0) - asm.mov(C_ARGS[0], rhs); - asm.mov(C_ARGS[1], lhs); - asm.call(C.rb_obj_is_kind_of) - - # Return the result - ctx.stack_pop(2) - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - return true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_int_equal(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - return false unless two_fixnums_on_stack?(jit) - - side_exit = side_exit(jit, ctx) - guard_two_fixnums(jit, ctx, asm, side_exit) - - # Compare the arguments - asm.comment('rb_int_equal') - arg1 = ctx.stack_pop(1) - arg0 = ctx.stack_pop(1) - asm.mov(:rax, arg1) - asm.cmp(arg0, :rax) - asm.mov(:rax, Qfalse) - asm.mov(:rcx, Qtrue) - asm.cmove(:rax, :rcx) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, :rax) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_int_mul(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - return false unless two_fixnums_on_stack?(jit) - - side_exit = side_exit(jit, ctx) - guard_two_fixnums(jit, ctx, asm, side_exit) - - asm.comment('rb_int_mul') - y_opnd = ctx.stack_pop - x_opnd = ctx.stack_pop - asm.mov(C_ARGS[0], x_opnd) - asm.mov(C_ARGS[1], y_opnd) - asm.call(C.rb_fix_mul_fix) - - ret_opnd = ctx.stack_push - asm.mov(ret_opnd, C_RET) - true - end - - def jit_rb_int_div(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - return false unless two_fixnums_on_stack?(jit) - - side_exit = side_exit(jit, ctx) - guard_two_fixnums(jit, ctx, asm, side_exit) - - asm.comment('rb_int_div') - y_opnd = ctx.stack_pop - x_opnd = ctx.stack_pop - asm.mov(:rax, y_opnd) - asm.cmp(:rax, C.to_value(0)) - asm.je(side_exit) - - asm.mov(C_ARGS[0], x_opnd) - asm.mov(C_ARGS[1], :rax) - asm.call(C.rb_fix_div_fix) - - ret_opnd = ctx.stack_push - asm.mov(ret_opnd, C_RET) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_int_aref(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - return false unless two_fixnums_on_stack?(jit) - - side_exit = side_exit(jit, ctx) - guard_two_fixnums(jit, ctx, asm, side_exit) - - asm.comment('rb_int_aref') - y_opnd = ctx.stack_pop - x_opnd = ctx.stack_pop - - asm.mov(C_ARGS[0], x_opnd) - asm.mov(C_ARGS[1], y_opnd) - asm.call(C.rb_fix_aref) - - ret_opnd = ctx.stack_push - asm.mov(ret_opnd, C_RET) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_str_to_s(jit, ctx, asm, argc, known_recv_class) - return false if argc != 0 - if known_recv_class == String - asm.comment('to_s on plain string') - # The method returns the receiver, which is already on the stack. - # No stack movement. - return true - end - false - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_str_getbyte(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - asm.comment('rb_str_getbyte') - - index_opnd = ctx.stack_pop - str_opnd = ctx.stack_pop - asm.mov(C_ARGS[0], str_opnd) - asm.mov(C_ARGS[1], index_opnd) - asm.call(C.rb_str_getbyte) - - ret_opnd = ctx.stack_push - asm.mov(ret_opnd, C_RET) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_rb_ary_push(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 1 - asm.comment('rb_ary_push') - - jit_prepare_routine_call(jit, ctx, asm) - - item_opnd = ctx.stack_pop - ary_opnd = ctx.stack_pop - asm.mov(C_ARGS[0], ary_opnd) - asm.mov(C_ARGS[1], item_opnd) - asm.call(C.rb_ary_push) - - ret_opnd = ctx.stack_push - asm.mov(ret_opnd, C_RET) - true - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_thread_s_current(jit, ctx, asm, argc, _known_recv_class) - return false if argc != 0 - asm.comment('Thread.current') - ctx.stack_pop(1) - - # ec->thread_ptr - asm.mov(:rax, [EC, C.rb_execution_context_t.offsetof(:thread_ptr)]) - - # thread->self - asm.mov(:rax, [:rax, C.rb_thread_struct.offsetof(:self)]) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, :rax) - true - end - - # - # Helpers - # - - def register_cfunc_codegen_funcs - # Specialization for C methods. See register_cfunc_method for details. - register_cfunc_method(BasicObject, :!, :jit_rb_obj_not) - - register_cfunc_method(NilClass, :nil?, :jit_rb_true) - register_cfunc_method(Kernel, :nil?, :jit_rb_false) - #register_cfunc_method(Kernel, :is_a?, :jit_rb_kernel_is_a) - #register_cfunc_method(Kernel, :kind_of?, :jit_rb_kernel_is_a) - #register_cfunc_method(Kernel, :instance_of?, :jit_rb_kernel_instance_of) - - register_cfunc_method(BasicObject, :==, :jit_rb_obj_equal) - register_cfunc_method(BasicObject, :equal?, :jit_rb_obj_equal) - register_cfunc_method(BasicObject, :!=, :jit_rb_obj_not_equal) - register_cfunc_method(Kernel, :eql?, :jit_rb_obj_equal) - register_cfunc_method(Module, :==, :jit_rb_obj_equal) - register_cfunc_method(Module, :===, :jit_rb_mod_eqq) - register_cfunc_method(Symbol, :==, :jit_rb_obj_equal) - register_cfunc_method(Symbol, :===, :jit_rb_obj_equal) - register_cfunc_method(Integer, :==, :jit_rb_int_equal) - register_cfunc_method(Integer, :===, :jit_rb_int_equal) - - # rb_str_to_s() methods in string.c - #register_cfunc_method(String, :empty?, :jit_rb_str_empty_p) - register_cfunc_method(String, :to_s, :jit_rb_str_to_s) - register_cfunc_method(String, :to_str, :jit_rb_str_to_s) - #register_cfunc_method(String, :bytesize, :jit_rb_str_bytesize) - #register_cfunc_method(String, :<<, :jit_rb_str_concat) - #register_cfunc_method(String, :+@, :jit_rb_str_uplus) - - # rb_ary_empty_p() method in array.c - #register_cfunc_method(Array, :empty?, :jit_rb_ary_empty_p) - - #register_cfunc_method(Kernel, :respond_to?, :jit_obj_respond_to) - #register_cfunc_method(Kernel, :block_given?, :jit_rb_f_block_given_p) - - # Thread.current - register_cfunc_method(C.rb_singleton_class(Thread), :current, :jit_thread_s_current) - - #--- - register_cfunc_method(Array, :<<, :jit_rb_ary_push) - register_cfunc_method(Integer, :*, :jit_rb_int_mul) - register_cfunc_method(Integer, :/, :jit_rb_int_div) - register_cfunc_method(Integer, :[], :jit_rb_int_aref) - register_cfunc_method(String, :getbyte, :jit_rb_str_getbyte) - end - - def register_cfunc_method(klass, mid_sym, func) - mid = C.rb_intern(mid_sym.to_s) - me = C.rb_method_entry_at(klass, mid) - - assert_equal(false, me.nil?) - - # Only cfuncs are supported - method_serial = me.def.method_serial - - @cfunc_codegen_table[method_serial] = method(func) - end - - def lookup_cfunc_codegen(cme_def) - @cfunc_codegen_table[cme_def.method_serial] - end - - def jit_getlocal_generic(jit, ctx, asm, idx:, level:) - # Load environment pointer EP at level - ep_reg = :rax - jit_get_ep(asm, level, reg: ep_reg) - - # Get a local variable - asm.mov(:rax, [ep_reg, -idx * C.VALUE.size]) - - # Push it to the stack - stack_top = ctx.stack_push - asm.mov(stack_top, :rax) - KeepCompiling - end - - def jit_setlocal_generic(jit, ctx, asm, idx:, level:) - # Load environment pointer EP at level - ep_reg = :rax - jit_get_ep(asm, level, reg: ep_reg) - - # Write barriers may be required when VM_ENV_FLAG_WB_REQUIRED is set, however write barriers - # only affect heap objects being written. If we know an immediate value is being written we - # can skip this check. - - # flags & VM_ENV_FLAG_WB_REQUIRED - flags_opnd = [ep_reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_FLAGS] - asm.test(flags_opnd, C.VM_ENV_FLAG_WB_REQUIRED) - - # Create a side-exit to fall back to the interpreter - side_exit = side_exit(jit, ctx) - - # if (flags & VM_ENV_FLAG_WB_REQUIRED) != 0 - asm.jnz(side_exit) - - # Pop the value to write from the stack - stack_top = ctx.stack_pop(1) - - # Write the value at the environment pointer - asm.mov(:rcx, stack_top) - asm.mov([ep_reg, -(C.VALUE.size * idx)], :rcx) - - KeepCompiling - end - - # Compute the index of a local variable from its slot index - def slot_to_local_idx(iseq, slot_idx) - # Layout illustration - # This is an array of VALUE - # | VM_ENV_DATA_SIZE | - # v v - # low addr <+-------+-------+-------+-------+------------------+ - # |local 0|local 1| ... |local n| .... | - # +-------+-------+-------+-------+------------------+ - # ^ ^ ^ ^ - # +-------+---local_table_size----+ cfp->ep--+ - # | | - # +------------------slot_idx----------------+ - # - # See usages of local_var_name() from iseq.c for similar calculation. - - local_table_size = iseq.body.local_table_size - op = slot_idx - C.VM_ENV_DATA_SIZE - local_table_size - op - 1 - end - - # @param asm [RubyVM::MJIT::Assembler] - def guard_object_is_heap(asm, object_opnd, side_exit) - asm.comment('guard object is heap') - # Test that the object is not an immediate - asm.test(object_opnd, C.RUBY_IMMEDIATE_MASK) - asm.jnz(side_exit) - - # Test that the object is not false - asm.cmp(object_opnd, Qfalse) - asm.je(side_exit) - end - - # @param asm [RubyVM::MJIT::Assembler] - def guard_object_is_array(asm, object_reg, flags_reg, side_exit) - asm.comment('guard object is array') - # Pull out the type mask - asm.mov(flags_reg, [object_reg, C.RBasic.offsetof(:flags)]) - asm.and(flags_reg, C.RUBY_T_MASK) - - # Compare the result with T_ARRAY - asm.cmp(flags_reg, C.RUBY_T_ARRAY) - asm.jne(side_exit) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_chain_guard(opcode, jit, ctx, asm, side_exit, limit: 20) - opcode => :je | :jne | :jnz | :jz - - if ctx.chain_depth < limit - deeper = ctx.dup - deeper.chain_depth += 1 - - branch_stub = BranchStub.new( - iseq: jit.iseq, - shape: Default, - target0: BranchTarget.new(ctx: deeper, pc: jit.pc), - ) - branch_stub.target0.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(deeper, ocb_asm, branch_stub, true) - @ocb.write(ocb_asm) - end - branch_stub.compile = proc do |branch_asm| - # Not using `asm.comment` here since it's usually put before cmp/test before this. - branch_asm.stub(branch_stub) do - case branch_stub.shape - in Default - branch_asm.public_send(opcode, branch_stub.target0.address) - end - end - end - branch_stub.compile.call(asm) - else - asm.public_send(opcode, side_exit) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_guard_known_klass(jit, ctx, asm, known_klass, obj_opnd, comptime_obj, side_exit, limit: 10) - # Only memory operand is supported for now - assert_equal(true, obj_opnd.is_a?(Array)) - - if known_klass == NilClass - asm.comment('guard object is nil') - asm.cmp(obj_opnd, Qnil) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - elsif known_klass == TrueClass - asm.comment('guard object is true') - asm.cmp(obj_opnd, Qtrue) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - elsif known_klass == FalseClass - asm.comment('guard object is false') - asm.cmp(obj_opnd, Qfalse) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - elsif known_klass == Integer && fixnum?(comptime_obj) - asm.comment('guard object is fixnum') - asm.test(obj_opnd, C.RUBY_FIXNUM_FLAG) - jit_chain_guard(:jz, jit, ctx, asm, side_exit, limit:) - elsif known_klass == Symbol && static_symbol?(comptime_obj) - # We will guard STATIC vs DYNAMIC as though they were separate classes - # DYNAMIC symbols can be handled by the general else case below - asm.comment('guard object is static symbol') - assert_equal(8, C.RUBY_SPECIAL_SHIFT) - asm.cmp(BytePtr[*obj_opnd], C.RUBY_SYMBOL_FLAG) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - elsif known_klass == Float && flonum?(comptime_obj) - # We will guard flonum vs heap float as though they were separate classes - asm.comment('guard object is flonum') - asm.mov(:rax, obj_opnd) - asm.and(:rax, C.RUBY_FLONUM_MASK) - asm.cmp(:rax, C.RUBY_FLONUM_FLAG) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - elsif C.FL_TEST(known_klass, C.RUBY_FL_SINGLETON) && comptime_obj == C.rb_class_attached_object(known_klass) - asm.comment('guard known object with singleton class') - asm.mov(:rax, C.to_value(comptime_obj)) - asm.cmp(obj_opnd, :rax) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - else - # Load memory to a register - asm.mov(:rax, obj_opnd) - obj_opnd = :rax - - # Check that the receiver is a heap object - # Note: if we get here, the class doesn't have immediate instances. - asm.comment('guard not immediate') - asm.test(obj_opnd, C.RUBY_IMMEDIATE_MASK) - jit_chain_guard(:jnz, jit, ctx, asm, side_exit, limit:) - asm.cmp(obj_opnd, Qfalse) - jit_chain_guard(:je, jit, ctx, asm, side_exit, limit:) - - # Bail if receiver class is different from known_klass - klass_opnd = [obj_opnd, C.RBasic.offsetof(:klass)] - asm.comment("guard known class #{known_klass}") - asm.mov(:rcx, to_value(known_klass)) - asm.cmp(klass_opnd, :rcx) - jit_chain_guard(:jne, jit, ctx, asm, side_exit, limit:) - end - end - - # @param jit [RubyVM::MJIT::JITState] - def two_fixnums_on_stack?(jit) - comptime_recv = jit.peek_at_stack(1) - comptime_arg = jit.peek_at_stack(0) - return fixnum?(comptime_recv) && fixnum?(comptime_arg) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def guard_two_fixnums(jit, ctx, asm, side_exit) - # Get stack operands without popping them - arg1 = ctx.stack_opnd(0) - arg0 = ctx.stack_opnd(1) - - asm.comment('guard arg0 fixnum') - asm.test(arg0, C.RUBY_FIXNUM_FLAG) - jit_chain_guard(:jz, jit, ctx, asm, side_exit) - # TODO: upgrade type, and skip the check when possible - - asm.comment('guard arg1 fixnum') - asm.test(arg1, C.RUBY_FIXNUM_FLAG) - jit_chain_guard(:jz, jit, ctx, asm, side_exit) - # TODO: upgrade type, and skip the check when possible - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_fixnum_cmp(jit, ctx, asm, opcode:, bop:) - opcode => :cmovl | :cmovle | :cmovg | :cmovge - - unless jit.at_current_insn? - defer_compilation(jit, ctx, asm) - return EndBlock - end - - comptime_recv = jit.peek_at_stack(1) - comptime_obj = jit.peek_at_stack(0) - - if fixnum?(comptime_recv) && fixnum?(comptime_obj) - # Generate a side exit before popping operands - side_exit = side_exit(jit, ctx) - - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, bop) - return CantCompile - end - - obj_opnd = ctx.stack_pop - recv_opnd = ctx.stack_pop - - asm.comment('guard recv is fixnum') # TODO: skip this with type information - asm.test(recv_opnd, C.RUBY_FIXNUM_FLAG) - asm.jz(side_exit) - - asm.comment('guard obj is fixnum') # TODO: skip this with type information - asm.test(obj_opnd, C.RUBY_FIXNUM_FLAG) - asm.jz(side_exit) - - asm.mov(:rax, obj_opnd) - asm.cmp(recv_opnd, :rax) - asm.mov(:rax, Qfalse) - asm.mov(:rcx, Qtrue) - asm.public_send(opcode, :rax, :rcx) - - dst_opnd = ctx.stack_push - asm.mov(dst_opnd, :rax) - - KeepCompiling - else - opt_send_without_block(jit, ctx, asm) - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_equality_specialized(jit, ctx, asm, gen_eq) - # Create a side-exit to fall back to the interpreter - side_exit = side_exit(jit, ctx) - - a_opnd = ctx.stack_opnd(1) - b_opnd = ctx.stack_opnd(0) - - comptime_a = jit.peek_at_stack(1) - comptime_b = jit.peek_at_stack(0) - - if two_fixnums_on_stack?(jit) - unless Invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_EQ) - return false - end - - guard_two_fixnums(jit, ctx, asm, side_exit) - - asm.comment('check fixnum equality') - asm.mov(:rax, a_opnd) - asm.mov(:rcx, b_opnd) - asm.cmp(:rax, :rcx) - asm.mov(:rax, gen_eq ? Qfalse : Qtrue) - asm.mov(:rcx, gen_eq ? Qtrue : Qfalse) - asm.cmove(:rax, :rcx) - - # Push the output on the stack - ctx.stack_pop(2) - dst = ctx.stack_push - asm.mov(dst, :rax) - - true - elsif C.rb_class_of(comptime_a) == String && C.rb_class_of(comptime_b) == String - unless Invariants.assume_bop_not_redefined(jit, C.STRING_REDEFINED_OP_FLAG, C.BOP_EQ) - # if overridden, emit the generic version - return false - end - - # Guard that a is a String - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_a), a_opnd, comptime_a, side_exit) - - equal_label = asm.new_label(:equal) - ret_label = asm.new_label(:ret) - - # If they are equal by identity, return true - asm.mov(:rax, a_opnd) - asm.mov(:rcx, b_opnd) - asm.cmp(:rax, :rcx) - asm.je(equal_label) - - # Otherwise guard that b is a T_STRING (from type info) or String (from runtime guard) - # Note: any T_STRING is valid here, but we check for a ::String for simplicity - # To pass a mutable static variable (rb_cString) requires an unsafe block - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_b), b_opnd, comptime_b, side_exit) - - asm.comment('call rb_str_eql_internal') - asm.mov(C_ARGS[0], a_opnd) - asm.mov(C_ARGS[1], b_opnd) - asm.call(gen_eq ? C.rb_str_eql_internal : C.rb_str_neq_internal) - - # Push the output on the stack - ctx.stack_pop(2) - dst = ctx.stack_push - asm.mov(dst, C_RET) - asm.jmp(ret_label) - - asm.write_label(equal_label) - asm.mov(dst, gen_eq ? Qtrue : Qfalse) - - asm.write_label(ret_label) - - true - else - false - end - end - - # NOTE: This clobbers :rax - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_prepare_routine_call(jit, ctx, asm) - jit.record_boundary_patch_point = true - jit_save_pc(jit, asm) - jit_save_sp(jit, ctx, asm) - end - - # Note: This clobbers :rax - # @param jit [RubyVM::MJIT::JITState] - # @param asm [RubyVM::MJIT::Assembler] - def jit_save_pc(jit, asm, comment: 'save PC to CFP') - next_pc = jit.pc + jit.insn.len * C.VALUE.size # Use the next one for backtrace and side exits - asm.comment(comment) - asm.mov(:rax, next_pc) - asm.mov([CFP, C.rb_control_frame_t.offsetof(:pc)], :rax) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_save_sp(jit, ctx, asm) - if ctx.sp_offset != 0 - asm.comment('save SP to CFP') - asm.lea(SP, ctx.sp_opnd) - asm.mov([CFP, C.rb_control_frame_t.offsetof(:sp)], SP) - ctx.sp_offset = 0 - end - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jump_to_next_insn(jit, ctx, asm) - reset_depth = ctx.dup - reset_depth.chain_depth = 0 - - next_pc = jit.pc + jit.insn.len * C.VALUE.size - - # We are at the end of the current instruction. Record the boundary. - if jit.record_boundary_patch_point - exit_pos = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_side_exit(next_pc, ctx, ocb_asm) - @ocb.write(ocb_asm) - end - Invariants.record_global_inval_patch(asm, exit_pos) - jit.record_boundary_patch_point = false - end - - stub_next_block(jit.iseq, next_pc, reset_depth, asm, comment: 'jump_to_next_insn') - end - - # rb_vm_check_ints - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_check_ints(jit, ctx, asm) - asm.comment('RUBY_VM_CHECK_INTS(ec)') - asm.mov(:eax, [EC, C.rb_execution_context_t.offsetof(:interrupt_flag)]) - asm.test(:eax, :eax) - asm.jnz(side_exit(jit, ctx)) - end - - # See get_lvar_level in compile.c - def get_lvar_level(iseq) - level = 0 - while iseq.to_i != iseq.body.local_iseq.to_i - level += 1 - iseq = iseq.body.parent_iseq - end - return level - end - - # GET_LEP - # @param jit [RubyVM::MJIT::JITState] - # @param asm [RubyVM::MJIT::Assembler] - def jit_get_lep(jit, asm, reg:) - level = get_lvar_level(jit.iseq) - jit_get_ep(asm, level, reg:) - end - - # vm_get_ep - # @param asm [RubyVM::MJIT::Assembler] - def jit_get_ep(asm, level, reg:) - asm.mov(reg, [CFP, C.rb_control_frame_t.offsetof(:ep)]) - level.times do - # GET_PREV_EP: ep[VM_ENV_DATA_INDEX_SPECVAL] & ~0x03 - asm.mov(reg, [reg, C.VALUE.size * C.VM_ENV_DATA_INDEX_SPECVAL]) - asm.and(reg, ~0x03) - end - end - - # vm_getivar - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_getivar(jit, ctx, asm, comptime_obj, ivar_id, obj_opnd = nil) - side_exit = side_exit(jit, ctx) - starting_ctx = ctx.dup # copy for jit_chain_guard - - # Guard not special const - if C.SPECIAL_CONST_P(comptime_obj) - asm.incr_counter(:getivar_special_const) - return CantCompile - end - - case C.BUILTIN_TYPE(comptime_obj) - when C.T_OBJECT - # This is the only supported case for now (ROBJECT_IVPTR) - else - # General case. Call rb_ivar_get(). - # VALUE rb_ivar_get(VALUE obj, ID id) - asm.comment('call rb_ivar_get()') - asm.mov(C_ARGS[0], obj_opnd ? obj_opnd : [CFP, C.rb_control_frame_t.offsetof(:self)]) - asm.mov(C_ARGS[1], ivar_id) - - # The function could raise exceptions. - jit_prepare_routine_call(jit, ctx, asm) # clobbers obj_opnd and :rax - - asm.call(C.rb_ivar_get) - - if obj_opnd # attr_reader - ctx.stack_pop - end - - # Push the ivar on the stack - out_opnd = ctx.stack_push - asm.mov(out_opnd, C_RET) - - # Jump to next instruction. This allows guard chains to share the same successor. - jump_to_next_insn(jit, ctx, asm) - return EndBlock - end - - asm.mov(:rax, obj_opnd ? obj_opnd : [CFP, C.rb_control_frame_t.offsetof(:self)]) - guard_object_is_heap(asm, :rax, counted_exit(side_exit, :getivar_not_heap)) - - shape_id = C.rb_shape_get_shape_id(comptime_obj) - if shape_id == C.OBJ_TOO_COMPLEX_SHAPE_ID - asm.incr_counter(:getivar_too_complex) - return CantCompile - end - - asm.comment('guard shape') - asm.cmp(DwordPtr[:rax, C.rb_shape_id_offset], shape_id) - jit_chain_guard(:jne, jit, starting_ctx, asm, counted_exit(side_exit, :getivar_megamorphic)) - - index = C.rb_shape_get_iv_index(shape_id, ivar_id) - if index - asm.comment('ROBJECT_IVPTR') - if C.FL_TEST_RAW(comptime_obj, C.ROBJECT_EMBED) - # Access embedded array - asm.mov(:rax, [:rax, C.RObject.offsetof(:as, :ary) + (index * C.VALUE.size)]) - else - # Pull out an ivar table on heap - asm.mov(:rax, [:rax, C.RObject.offsetof(:as, :heap, :ivptr)]) - # Read the table - asm.mov(:rax, [:rax, index * C.VALUE.size]) - end - val_opnd = :rax - else - val_opnd = Qnil - end - - if obj_opnd - ctx.stack_pop # pop receiver for attr_reader - end - stack_opnd = ctx.stack_push - asm.mov(stack_opnd, val_opnd) - - # Let guard chains share the same successor - jump_to_next_insn(jit, ctx, asm) - EndBlock - end - - def jit_write_iv(asm, comptime_receiver, recv_reg, temp_reg, ivar_index, set_value, needs_extension) - # Compile time self is embedded and the ivar index lands within the object - embed_test_result = C.FL_TEST_RAW(comptime_receiver, C.ROBJECT_EMBED) && !needs_extension - - if embed_test_result - # Find the IV offset - offs = C.RObject.offsetof(:as, :ary) + ivar_index * C.VALUE.size - - # Write the IV - asm.comment('write IV') - asm.mov(temp_reg, set_value) - asm.mov([recv_reg, offs], temp_reg) - else - # Compile time value is *not* embedded. - - # Get a pointer to the extended table - asm.mov(recv_reg, [recv_reg, C.RObject.offsetof(:as, :heap, :ivptr)]) - - # Write the ivar in to the extended table - asm.comment("write IV"); - asm.mov(temp_reg, set_value) - asm.mov([recv_reg, C.VALUE.size * ivar_index], temp_reg) - end - end - - # vm_caller_setup_arg_block - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_caller_setup_arg_block(jit, ctx, asm, ci, blockiseq, is_super) - side_exit = side_exit(jit, ctx) - if C.vm_ci_flag(ci) & C.VM_CALL_ARGS_BLOCKARG != 0 - # TODO: Skip cmp + jne using Context? - block_code = jit.peek_at_stack(0) - block_opnd = ctx.stack_opnd(0) # to be popped after eliminating side exit possibility - if block_code.nil? - asm.cmp(block_opnd, Qnil) - jit_chain_guard(:jne, jit, ctx, asm, counted_exit(side_exit, :send_block_not_nil)) - return C.VM_BLOCK_HANDLER_NONE - elsif C.to_value(block_code) == C.rb_block_param_proxy - asm.mov(:rax, C.rb_block_param_proxy) - asm.cmp(block_opnd, :rax) - jit_chain_guard(:jne, jit, ctx, asm, counted_exit(side_exit, :send_block_not_proxy)) - return C.rb_block_param_proxy - else - asm.incr_counter(:send_blockarg_not_nil_or_proxy) - return CantCompile - end - elsif blockiseq != 0 - return blockiseq - else - if is_super - # GET_BLOCK_HANDLER(); - # Guard no block passed. Only handle that case for now. - asm.comment('guard no block given') - jit_get_lep(jit, asm, reg: :rax) - asm.cmp([:rax, C.VALUE.size * C.VM_ENV_DATA_INDEX_SPECVAL], C.VM_BLOCK_HANDLER_NONE) - asm.jne(counted_exit(side_exit, :send_block_handler)) - return C.VM_BLOCK_HANDLER_NONE - else - # Not implemented yet. Is this even necessary? - asm.incr_counter(:send_block_setup) - return CantCompile - end - end - end - - # vm_search_method - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_search_method(jit, ctx, asm, mid, argc, flags, send_shift: 0) - assert_equal(true, jit.at_current_insn?) - - # Generate a side exit - side_exit = side_exit(jit, ctx) - - # kw_splat is not supported yet - if flags & C.VM_CALL_KW_SPLAT != 0 - asm.incr_counter(:send_kw_splat) - return CantCompile - end - - # Get a compile-time receiver and its class - recv_idx = argc + (flags & C.VM_CALL_ARGS_BLOCKARG != 0 ? 1 : 0) # blockarg is not popped yet - recv_idx += send_shift - comptime_recv = jit.peek_at_stack(recv_idx + (flags & C.VM_CALL_ARGS_BLOCKARG != 0 ? 1 : 0)) # this offset is in ctx but not in SP - comptime_recv_klass = C.rb_class_of(comptime_recv) - - # Guard the receiver class (part of vm_search_method_fastpath) - recv_opnd = ctx.stack_opnd(recv_idx) - megamorphic_exit = counted_exit(side_exit, :send_klass_megamorphic) - jit_guard_known_klass(jit, ctx, asm, comptime_recv_klass, recv_opnd, comptime_recv, megamorphic_exit) - - # Do method lookup (vm_cc_cme(cc) != NULL) - cme = C.rb_callable_method_entry(comptime_recv_klass, mid) - if cme.nil? - asm.incr_counter(:send_missing_cme) - return CantCompile # We don't support vm_call_method_name - end - - # Invalidate on redefinition (part of vm_search_method_fastpath) - Invariants.assume_method_lookup_stable(jit, cme) - - return cme, comptime_recv_klass - end - - def jit_search_super_method(jit, ctx, asm, mid, argc, flags) - assert_equal(true, jit.at_current_insn?) - - me = C.rb_vm_frame_method_entry(jit.cfp) - if me.nil? - return CantCompile - end - - # FIXME: We should track and invalidate this block when this cme is invalidated - current_defined_class = me.defined_class - mid = me.def.original_id - - if me.to_i != C.rb_callable_method_entry(current_defined_class, me.called_id).to_i - # Though we likely could generate this call, as we are only concerned - # with the method entry remaining valid, assume_method_lookup_stable - # below requires that the method lookup matches as well - return CantCompile - end - - # vm_search_normal_superclass - rbasic_klass = C.to_ruby(C.RBasic.new(C.to_value(current_defined_class)).klass) - if C.BUILTIN_TYPE(current_defined_class) == C.RUBY_T_ICLASS && C.BUILTIN_TYPE(rbasic_klass) == C.RUBY_T_MODULE && \ - C.FL_TEST_RAW(rbasic_klass, C.RMODULE_IS_REFINEMENT) != 0 - return CantCompile - end - comptime_superclass = C.rb_class_get_superclass(current_defined_class) - - # Don't JIT calls that aren't simple - # Note, not using VM_CALL_ARGS_SIMPLE because sometimes we pass a block. - - if flags & C.VM_CALL_KWARG != 0 - asm.incr_counter(:send_kwarg) - return CantCompile - end - if flags & C.VM_CALL_KW_SPLAT != 0 - asm.incr_counter(:send_kw_splat) - return CantCompile - end - - # Ensure we haven't rebound this method onto an incompatible class. - # In the interpreter we try to avoid making this check by performing some - # cheaper calculations first, but since we specialize on the method entry - # and so only have to do this once at compile time this is fine to always - # check and side exit. - comptime_recv = jit.peek_at_stack(argc) - unless C.obj_is_kind_of(comptime_recv, current_defined_class) - return CantCompile - end - - # Do method lookup - cme = C.rb_callable_method_entry(comptime_superclass, mid) - - if cme.nil? - return CantCompile - end - - # workaround -- TODO: Why does this happen? - if me.to_i == cme.to_i - asm.incr_counter(:invokesuper_same_me) - return CantCompile - end - - # Check that we'll be able to write this method dispatch before generating checks - cme_def_type = cme.def.type - if cme_def_type != C.VM_METHOD_TYPE_ISEQ && cme_def_type != C.VM_METHOD_TYPE_CFUNC - # others unimplemented - return CantCompile - end - - # Guard that the receiver has the same class as the one from compile time - side_exit = side_exit(jit, ctx) - - asm.comment('guard known me') - jit_get_lep(jit, asm, reg: :rax) - - asm.mov(:rcx, me.to_i) - asm.cmp([:rax, C.VALUE.size * C.VM_ENV_DATA_INDEX_ME_CREF], :rcx) - asm.jne(counted_exit(side_exit, :invokesuper_me_changed)) - - # We need to assume that both our current method entry and the super - # method entry we invoke remain stable - Invariants.assume_method_lookup_stable(jit, me) - Invariants.assume_method_lookup_stable(jit, cme) - - return cme - end - - # vm_call_general - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_general(jit, ctx, asm, mid, argc, flags, cme, block_handler, known_recv_class) - jit_call_method(jit, ctx, asm, mid, argc, flags, cme, block_handler, known_recv_class) - end - - # vm_call_method - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - # @param send_shift [Integer] The number of shifts needed for VM_CALL_OPT_SEND - def jit_call_method(jit, ctx, asm, mid, argc, flags, cme, block_handler, known_recv_class, send_shift: 0) - # The main check of vm_call_method before vm_call_method_each_type - case C.METHOD_ENTRY_VISI(cme) - when C.METHOD_VISI_PUBLIC - # You can always call public methods - when C.METHOD_VISI_PRIVATE - # Allow only callsites without a receiver - if flags & C.VM_CALL_FCALL == 0 - asm.incr_counter(:send_private) - return CantCompile - end - when C.METHOD_VISI_PROTECTED - # If the method call is an FCALL, it is always valid - if flags & C.VM_CALL_FCALL == 0 - # otherwise we need an ancestry check to ensure the receiver is valid to be called as protected - jit_protected_callee_ancestry_guard(asm, cme, side_exit(jit, ctx)) - end - else - # TODO: Change them to a constant and use case-in instead - raise 'unreachable' - end - - # Get a compile-time receiver - recv_idx = argc + (flags & C.VM_CALL_ARGS_BLOCKARG != 0 ? 1 : 0) # blockarg is not popped yet - recv_idx += send_shift - comptime_recv = jit.peek_at_stack(recv_idx + (flags & C.VM_CALL_ARGS_BLOCKARG != 0 ? 1 : 0)) # this offset is in ctx but not in SP - recv_opnd = ctx.stack_opnd(recv_idx) - - jit_call_method_each_type(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - end - - # Generate ancestry guard for protected callee. - # Calls to protected callees only go through when self.is_a?(klass_that_defines_the_callee). - def jit_protected_callee_ancestry_guard(asm, cme, side_exit) - # See vm_call_method(). - def_class = cme.defined_class - # Note: PC isn't written to current control frame as rb_is_kind_of() shouldn't raise. - # VALUE rb_obj_is_kind_of(VALUE obj, VALUE klass); - - asm.mov(C_ARGS[0], [CFP, C.rb_control_frame_t.offsetof(:self)]) - asm.mov(C_ARGS[1], to_value(def_class)) - asm.call(C.rb_obj_is_kind_of) - asm.test(C_RET, C_RET) - asm.jz(counted_exit(side_exit, :send_protected_check_failed)) - end - - # vm_call_method_each_type - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_method_each_type(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - case cme.def.type - when C.VM_METHOD_TYPE_ISEQ - iseq = def_iseq_ptr(cme.def) - jit_call_iseq_setup(jit, ctx, asm, cme, flags, argc, iseq, block_handler, send_shift:) - when C.VM_METHOD_TYPE_NOTIMPLEMENTED - asm.incr_counter(:send_notimplemented) - return CantCompile - when C.VM_METHOD_TYPE_CFUNC - jit_call_cfunc(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - when C.VM_METHOD_TYPE_ATTRSET - asm.incr_counter(:send_attrset) - return CantCompile - when C.VM_METHOD_TYPE_IVAR - jit_call_ivar(jit, ctx, asm, cme, flags, argc, comptime_recv, recv_opnd, send_shift:) - when C.VM_METHOD_TYPE_MISSING - asm.incr_counter(:send_missing) - return CantCompile - when C.VM_METHOD_TYPE_BMETHOD - jit_call_bmethod(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - when C.VM_METHOD_TYPE_ALIAS - jit_call_alias(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - when C.VM_METHOD_TYPE_OPTIMIZED - jit_call_optimized(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - when C.VM_METHOD_TYPE_UNDEF - asm.incr_counter(:send_undef) - return CantCompile - when C.VM_METHOD_TYPE_ZSUPER - asm.incr_counter(:send_zsuper) - return CantCompile - when C.VM_METHOD_TYPE_REFINED - asm.incr_counter(:send_refined) - return CantCompile - else - asm.incr_counter(:send_unknown_type) - return CantCompile - end - end - - # vm_call_iseq_setup - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_iseq_setup(jit, ctx, asm, cme, flags, argc, iseq, block_handler, send_shift:, frame_type: nil, prev_ep: nil) - opt_pc = jit_callee_setup_arg(jit, ctx, asm, flags, argc, iseq) - if opt_pc == CantCompile - return CantCompile - end - - if flags & C.VM_CALL_TAILCALL != 0 - # We don't support vm_call_iseq_setup_tailcall - asm.incr_counter(:send_tailcall) - return CantCompile - end - jit_call_iseq_setup_normal(jit, ctx, asm, cme, flags, argc, iseq, block_handler, opt_pc, send_shift:, frame_type:, prev_ep:) - end - - # vm_call_iseq_setup_normal (vm_call_iseq_setup_2 -> vm_call_iseq_setup_normal) - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_iseq_setup_normal(jit, ctx, asm, cme, flags, argc, iseq, block_handler, opt_pc, send_shift:, frame_type:, prev_ep:) - # We will not have side exits from here. Adjust the stack. - if flags & C.VM_CALL_OPT_SEND != 0 - jit_call_opt_send_shift_stack(ctx, asm, argc, send_shift:) - end - - # Save caller SP and PC before pushing a callee frame for backtrace and side exits - asm.comment('save SP to caller CFP') - recv_idx = argc + (flags & C.VM_CALL_ARGS_BLOCKARG != 0 ? 1 : 0) # blockarg is not popped yet - # Skip setting this to SP register. This cfp->sp will be copied to SP on leave insn. - asm.lea(:rax, ctx.sp_opnd(C.VALUE.size * -(1 + recv_idx))) # Pop receiver and arguments to prepare for side exits - asm.mov([CFP, C.rb_control_frame_t.offsetof(:sp)], :rax) - jit_save_pc(jit, asm, comment: 'save PC to caller CFP') - - frame_type ||= C.VM_FRAME_MAGIC_METHOD | C.VM_ENV_FLAG_LOCAL - jit_push_frame( - jit, ctx, asm, cme, flags, argc, frame_type, block_handler, - iseq: iseq, - local_size: iseq.body.local_table_size - iseq.body.param.size, - stack_max: iseq.body.stack_max, - prev_ep:, - ) - - # Jump to a stub for the callee ISEQ - callee_ctx = Context.new - pc = (iseq.body.iseq_encoded + opt_pc).to_i - stub_next_block(iseq, pc, callee_ctx, asm) - - EndBlock - end - - # vm_call_cfunc - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_cfunc(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - if jit_caller_setup_arg(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - if jit_caller_remove_empty_kw_splat(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - - jit_call_cfunc_with_frame(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - end - - # jit_call_cfunc_with_frame - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_cfunc_with_frame(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - cfunc = cme.def.body.cfunc - - if argc + 1 > 6 - asm.incr_counter(:send_cfunc_too_many_args) - return CantCompile - end - - frame_type = C.VM_FRAME_MAGIC_CFUNC | C.VM_FRAME_FLAG_CFRAME | C.VM_ENV_FLAG_LOCAL - if flags & C.VM_CALL_KW_SPLAT != 0 - frame_type |= C.VM_FRAME_FLAG_CFRAME_KW - end - - # EXEC_EVENT_HOOK: RUBY_EVENT_C_CALL and RUBY_EVENT_C_RETURN - if C.rb_mjit_global_events & (C.RUBY_EVENT_C_CALL | C.RUBY_EVENT_C_RETURN) != 0 - asm.incr_counter(:send_c_tracing) - return CantCompile - end - - # rb_check_arity - if cfunc.argc >= 0 && argc != cfunc.argc - asm.incr_counter(:send_arity) - return CantCompile - end - if cfunc.argc == -2 - asm.incr_counter(:send_cfunc_ruby_array_varg) - return CantCompile - end - - # Delegate to codegen for C methods if we have it. - if flags & C.VM_CALL_KWARG == 0 && flags & C.VM_CALL_OPT_SEND == 0 - known_cfunc_codegen = lookup_cfunc_codegen(cme.def) - if known_cfunc_codegen&.call(jit, ctx, asm, argc, known_recv_class) - # cfunc codegen generated code. Terminate the block so - # there isn't multiple calls in the same block. - jump_to_next_insn(jit, ctx, asm) - return EndBlock - end - end - - # We will not have side exits from here. Adjust the stack. - if flags & C.VM_CALL_OPT_SEND != 0 - jit_call_opt_send_shift_stack(ctx, asm, argc, send_shift:) - end - - # Check interrupts before SP motion to safely side-exit with the original SP. - jit_check_ints(jit, ctx, asm) - - # Save caller SP and PC before pushing a callee frame for backtrace and side exits - asm.comment('save SP to caller CFP') - sp_index = -(1 + argc + (flags & C.VM_CALL_ARGS_BLOCKARG != 0 ? 1 : 0)) # Pop receiver and arguments for side exits. blockarg is not popped yet - asm.lea(SP, ctx.sp_opnd(C.VALUE.size * sp_index)) - asm.mov([CFP, C.rb_control_frame_t.offsetof(:sp)], SP) - ctx.sp_offset = -sp_index - jit_save_pc(jit, asm, comment: 'save PC to caller CFP') - - # Push a callee frame. SP register and ctx are not modified inside this. - jit_push_frame(jit, ctx, asm, cme, flags, argc, frame_type, block_handler) - - asm.comment('call C function') - case cfunc.argc - in (0..) # Non-variadic method - # Push receiver and args - (1 + argc).times do |i| - asm.mov(C_ARGS[i], ctx.stack_opnd(argc - i)) # TODO: +1 for VM_CALL_ARGS_BLOCKARG - end - in -1 # Variadic method: rb_f_puts(int argc, VALUE *argv, VALUE recv) - asm.mov(C_ARGS[0], argc) - asm.lea(C_ARGS[1], ctx.stack_opnd(argc - 1)) # argv - asm.mov(C_ARGS[2], ctx.stack_opnd(argc)) # recv - end - asm.mov(:rax, cfunc.func) - asm.call(:rax) # TODO: use rel32 if close enough - ctx.stack_pop(1 + argc) - - Invariants.record_global_inval_patch(asm, @full_cfunc_return) - - asm.comment('push the return value') - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - - asm.comment('pop the stack frame') - asm.mov([EC, C.rb_execution_context_t.offsetof(:cfp)], CFP) - - # Let guard chains share the same successor (ctx.sp_offset == 1) - assert_equal(1, ctx.sp_offset) - jump_to_next_insn(jit, ctx, asm) - EndBlock - end - - # vm_call_ivar (+ part of vm_call_method_each_type) - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_ivar(jit, ctx, asm, cme, flags, argc, comptime_recv, recv_opnd, send_shift:) - if flags & C.VM_CALL_ARGS_SPLAT != 0 - asm.incr_counter(:send_ivar_splat) - return CantCompile - end - - if argc != 0 - asm.incr_counter(:send_arity) - return CantCompile - end - - # We don't support jit_call_opt_send_shift_stack for this yet. - if flags & C.VM_CALL_OPT_SEND != 0 - asm.incr_counter(:send_ivar_opt_send) - return CantCompile - end - - ivar_id = cme.def.body.attr.id - - # Not handling block_handler - if flags & C.VM_CALL_ARGS_BLOCKARG != 0 - asm.incr_counter(:send_ivar_blockarg) - return CantCompile - end - - jit_getivar(jit, ctx, asm, comptime_recv, ivar_id, recv_opnd) - end - - # vm_call_bmethod - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_bmethod(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - proc_addr = cme.def.body.bmethod.proc - - proc_t = C.rb_yjit_get_proc_ptr(proc_addr) - proc_block = proc_t.block - - if proc_block.type != C.block_type_iseq - asm.incr_counter(:send_bmethod_not_iseq) - return CantCompile - end - - capture = proc_block.as.captured - iseq = capture.code.iseq - - # TODO: implement this - # Optimize for single ractor mode and avoid runtime check for - # "defined with an un-shareable Proc in a different Ractor" - # if !assume_single_ractor_mode(jit, ocb) - # return CantCompile; - # end - - # Passing a block to a block needs logic different from passing - # a block to a method and sometimes requires allocation. Bail for now. - if block_handler != C.VM_BLOCK_HANDLER_NONE - asm.incr_counter(:send_bmethod_blockarg) - return CantCompile - end - - frame_type = C.VM_FRAME_MAGIC_BLOCK | C.VM_FRAME_FLAG_BMETHOD | C.VM_FRAME_FLAG_LAMBDA - prev_ep = capture.ep - jit_call_iseq_setup(jit, ctx, asm, cme, flags, argc, iseq, block_handler, send_shift:, frame_type:, prev_ep:) - end - - # vm_call_alias - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_alias(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - cme = C.rb_aliased_callable_method_entry(cme) - jit_call_method_each_type(jit, ctx, asm, argc, flags, cme, comptime_recv, recv_opnd, block_handler, known_recv_class, send_shift:) - end - - # vm_call_optimized - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_optimized(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - if flags & C.VM_CALL_ARGS_BLOCKARG != 0 - # Not working yet - asm.incr_counter(:send_optimized_blockarg) - return CantCompile - end - - case cme.def.body.optimized.type - when C.OPTIMIZED_METHOD_TYPE_SEND - jit_call_opt_send(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - when C.OPTIMIZED_METHOD_TYPE_CALL - jit_call_opt_call(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - when C.OPTIMIZED_METHOD_TYPE_BLOCK_CALL - asm.incr_counter(:send_optimized_block_call) - return CantCompile - when C.OPTIMIZED_METHOD_TYPE_STRUCT_AREF - jit_call_opt_struct_aref(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - when C.OPTIMIZED_METHOD_TYPE_STRUCT_ASET - asm.incr_counter(:send_optimized_struct_aset) - return CantCompile - else - asm.incr_counter(:send_optimized_unknown_type) - return CantCompile - end - end - - # vm_call_opt_send - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_opt_send(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - if jit_caller_setup_arg(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - - if argc == 0 - asm.incr_counter(:send_optimized_send_no_args) - return CantCompile - end - - argc -= 1 - # We aren't handling `send(:send, ...)` yet. This might work, but not tested yet. - if send_shift > 0 - asm.incr_counter(:send_optimized_send_send) - return CantCompile - end - # Ideally, we want to shift the stack here, but it's not safe until you reach the point - # where you never exit. `send_shift` signals to lazily shift the stack by this amount. - send_shift += 1 - - kw_splat = flags & C.VM_CALL_KW_SPLAT != 0 - jit_call_symbol(jit, ctx, asm, cme, C.VM_CALL_FCALL, argc, kw_splat, block_handler, known_recv_class, send_shift:) - end - - # vm_call_opt_call - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_opt_call(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - if block_handler != C.VM_BLOCK_HANDLER_NONE - asm.incr_counter(:send_optimized_call_block) - return CantCompile - end - - if flags & C.VM_CALL_KWARG != 0 - asm.incr_counter(:send_optimized_call_kwarg) - return CantCompile - end - - if flags & C.VM_CALL_ARGS_SPLAT != 0 - asm.incr_counter(:send_optimized_call_splat) - return CantCompile - end - - # TODO: implement this - # Optimize for single ractor mode and avoid runtime check for - # "defined with an un-shareable Proc in a different Ractor" - # if !assume_single_ractor_mode(jit, ocb) - # return CantCompile - # end - - # If this is a .send call we need to adjust the stack - if flags & C.VM_CALL_OPT_SEND != 0 - jit_call_opt_send_shift_stack(ctx, asm, argc, send_shift:) - end - - # About to reset the SP, need to load this here - recv_idx = argc # blockarg is not supported. send_shift is already handled. - asm.mov(:rcx, ctx.stack_opnd(recv_idx)) # recv - - # Save the PC and SP because the callee can make Ruby calls - jit_prepare_routine_call(jit, ctx, asm) # NOTE: clobbers rax - - asm.lea(:rax, ctx.sp_opnd(0)) # sp - - kw_splat = flags & C.VM_CALL_KW_SPLAT - - asm.mov(C_ARGS[0], :rcx) - asm.mov(C_ARGS[1], EC) - asm.mov(C_ARGS[2], argc) - asm.lea(C_ARGS[3], [:rax, -argc * C.VALUE.size]) # stack_argument_pointer. NOTE: C_ARGS[3] is rcx - asm.mov(C_ARGS[4], kw_splat) - asm.mov(C_ARGS[5], C.VM_BLOCK_HANDLER_NONE) - asm.call(C.rb_optimized_call) - - ctx.stack_pop(argc + 1) - - stack_ret = ctx.stack_push - asm.mov(stack_ret, C_RET) - return KeepCompiling - end - - # vm_call_opt_struct_aref - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_opt_struct_aref(jit, ctx, asm, cme, flags, argc, block_handler, known_recv_class, send_shift:) - if argc != 0 - asm.incr_counter(:send_optimized_struct_aref_error) - return CantCompile - end - - off = cme.def.body.optimized.index - - recv_idx = argc # blockarg is not supported - recv_idx += send_shift - comptime_recv = jit.peek_at_stack(recv_idx) - - # This is a .send call and we need to adjust the stack - if flags & C.VM_CALL_OPT_SEND != 0 - jit_call_opt_send_shift_stack(ctx, asm, argc, send_shift:) - end - - # All structs from the same Struct class should have the same - # length. So if our comptime_recv is embedded all runtime - # structs of the same class should be as well, and the same is - # true of the converse. - embedded = C.FL_TEST_RAW(comptime_recv, C.RSTRUCT_EMBED_LEN_MASK) - - asm.comment('struct aref') - asm.mov(:rax, ctx.stack_pop(1)) # recv - - if embedded - asm.mov(:rax, [:rax, C.RStruct.offsetof(:as, :ary) + (C.VALUE.size * off)]) - else - asm.mov(:rax, [:rax, C.RStruct.offsetof(:as, :heap, :ptr)]) - asm.mov(:rax, [:rax, C.VALUE.size * off]) - end - - ret = ctx.stack_push - asm.mov(ret, :rax) - - jump_to_next_insn(jit, ctx, asm) - EndBlock - end - - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_opt_send_shift_stack(ctx, asm, argc, send_shift:) - # We don't support `send(:send, ...)` for now. - assert_equal(1, send_shift) - - asm.comment('shift stack') - (0...argc).reverse_each do |i| - opnd = ctx.stack_opnd(i) - opnd2 = ctx.stack_opnd(i + 1) - asm.mov(:rax, opnd) - asm.mov(opnd2, :rax) - end - - ctx.stack_pop(1) - end - - # vm_call_symbol - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_call_symbol(jit, ctx, asm, cme, flags, argc, kw_splat, block_handler, known_recv_class, send_shift:) - flags |= C.VM_CALL_OPT_SEND | (kw_splat ? C.VM_CALL_KW_SPLAT : 0) - - comptime_symbol = jit.peek_at_stack(argc) - if comptime_symbol.class != String && !static_symbol?(comptime_symbol) - asm.incr_counter(:send_optimized_send_not_sym_or_str) - return CantCompile - end - - mid = C.get_symbol_id(comptime_symbol) - if mid == 0 - asm.incr_counter(:send_optimized_send_null_mid) - return CantCompile - end - - asm.comment("Guard #{comptime_symbol.inspect} is on stack") - class_changed_exit = counted_exit(side_exit(jit, ctx), :send_optimized_send_mid_class_changed) - jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_symbol), ctx.stack_opnd(argc), comptime_symbol, class_changed_exit) - asm.mov(C_ARGS[0], ctx.stack_opnd(argc)) - asm.call(C.rb_get_symbol_id) - asm.cmp(C_RET, mid) - id_changed_exit = counted_exit(side_exit(jit, ctx), :send_optimized_send_mid_id_changed) - jit_chain_guard(:jne, jit, ctx, asm, id_changed_exit) - - # rb_callable_method_entry_with_refinements - cme, _ = jit_search_method(jit, ctx, asm, mid, argc, flags, send_shift:) - if cme == CantCompile - return CantCompile - end - - if flags & C.VM_CALL_FCALL != 0 - return jit_call_method(jit, ctx, asm, mid, argc, flags, cme, block_handler, known_recv_class, send_shift:) - end - - raise NotImplementedError # unreachable for now - end - - # vm_push_frame - # - # Frame structure: - # | args | locals | cme/cref | block_handler/prev EP | frame type (EP here) | stack bottom (SP here) - # - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_push_frame(jit, ctx, asm, cme, flags, argc, frame_type, block_handler, iseq: nil, local_size: 0, stack_max: 0, prev_ep: nil) - # CHECK_VM_STACK_OVERFLOW0: next_cfp <= sp + (local_size + stack_max) - asm.comment('stack overflow check') - asm.lea(:rax, ctx.sp_opnd(C.rb_control_frame_t.size + C.VALUE.size * (local_size + stack_max))) - asm.cmp(CFP, :rax) - asm.jbe(counted_exit(side_exit(jit, ctx), :send_stackoverflow)) - - # Pop blockarg after all side exits - if flags & C.VM_CALL_ARGS_BLOCKARG != 0 - ctx.stack_pop(1) - end - - if iseq - # This was not handled in jit_callee_setup_arg - opts_filled = argc - iseq.body.param.lead_num # TODO: kwarg - opts_missing = iseq.body.param.opt_num - opts_filled - local_size += opts_missing - end - local_size.times do |i| - asm.comment('set local variables') if i == 0 - local_index = ctx.sp_offset + i - asm.mov([SP, C.VALUE.size * local_index], Qnil) - end - - asm.comment('set up EP with managing data') - ep_offset = ctx.sp_offset + local_size + 2 - # ep[-2]: cref_or_me - asm.mov(:rax, cme.to_i) - asm.mov([SP, C.VALUE.size * (ep_offset - 2)], :rax) - # ep[-1]: block handler or prev env ptr - if prev_ep - asm.mov(:rax, prev_ep.to_i | 1) # tagged prev ep - asm.mov([SP, C.VALUE.size * (ep_offset - 1)], :rax) - elsif block_handler == C.VM_BLOCK_HANDLER_NONE - asm.mov([SP, C.VALUE.size * (ep_offset - 1)], C.VM_BLOCK_HANDLER_NONE) - elsif block_handler == C.rb_block_param_proxy - # vm_caller_setup_arg_block: - # VALUE handler = VM_CF_BLOCK_HANDLER(reg_cfp); - # reg_cfp->block_code = (const void *) handler; - jit_get_lep(jit, asm, reg: :rax) - asm.mov(:rax, [:rax, C.VALUE.size * C.VM_ENV_DATA_INDEX_SPECVAL]) # handler - asm.mov([CFP, C.rb_control_frame_t.offsetof(:block_code)], :rax) - - asm.mov(:rax, C.rb_block_param_proxy) - asm.mov([SP, C.VALUE.size * (ep_offset - 1)], :rax) - else # assume blockiseq - asm.mov(:rax, block_handler) - asm.mov([CFP, C.rb_control_frame_t.offsetof(:block_code)], :rax) - asm.lea(:rax, [CFP, C.rb_control_frame_t.offsetof(:self)]) # VM_CFP_TO_CAPTURED_BLOCK - asm.or(:rax, 1) # VM_BH_FROM_ISEQ_BLOCK - asm.mov([SP, C.VALUE.size * (ep_offset - 1)], :rax) - end - # ep[-0]: ENV_FLAGS - asm.mov([SP, C.VALUE.size * (ep_offset - 0)], frame_type) - - asm.comment('set up new frame') - cfp_offset = -C.rb_control_frame_t.size # callee CFP - # For ISEQ, JIT code will set it as needed. However, C func needs 0 there for svar frame detection. - if iseq.nil? - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:pc)], 0) - end - asm.mov(:rax, iseq.to_i) - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:iseq)], :rax) - self_index = ctx.sp_offset - (1 + argc) # blockarg has been popped - asm.mov(:rax, [SP, C.VALUE.size * self_index]) - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:self)], :rax) - asm.lea(:rax, [SP, C.VALUE.size * ep_offset]) - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:ep)], :rax) - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:block_code)], 0) - # Update SP register only for ISEQ calls. SP-relative operations should be done above this. - sp_reg = iseq ? SP : :rax - asm.lea(sp_reg, [SP, C.VALUE.size * (ctx.sp_offset + local_size + 3)]) - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:sp)], sp_reg) - asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:__bp__)], sp_reg) # TODO: get rid of this!! - - # cfp->jit_return is used only for ISEQs - if iseq - # Stub cfp->jit_return - return_ctx = ctx.dup - return_ctx.stack_size -= argc # Pop args. blockarg has been popped - return_ctx.sp_offset = 1 # SP is in the position after popping a receiver and arguments - return_ctx.chain_depth = 0 - branch_stub = BranchStub.new( - iseq: jit.iseq, - shape: Default, - target0: BranchTarget.new(ctx: return_ctx, pc: jit.pc + jit.insn.len * C.VALUE.size), - ) - branch_stub.target0.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(return_ctx, ocb_asm, branch_stub, true) - @ocb.write(ocb_asm) - end - branch_stub.compile = proc do |branch_asm| - branch_asm.comment('set jit_return to callee CFP') - branch_asm.stub(branch_stub) do - case branch_stub.shape - in Default - branch_asm.mov(:rax, branch_stub.target0.address) - branch_asm.mov([CFP, cfp_offset + C.rb_control_frame_t.offsetof(:jit_return)], :rax) - end - end - end - branch_stub.compile.call(asm) - end - - asm.comment('switch to callee CFP') - # Update CFP register only for ISEQ calls - cfp_reg = iseq ? CFP : :rax - asm.lea(cfp_reg, [CFP, cfp_offset]) - asm.mov([EC, C.rb_execution_context_t.offsetof(:cfp)], cfp_reg) - end - - # vm_callee_setup_arg: Set up args and return opt_pc (or CantCompile) - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_callee_setup_arg(jit, ctx, asm, flags, argc, iseq) - if flags & C.VM_CALL_KW_SPLAT == 0 - if C.rb_simple_iseq_p(iseq) - if jit_caller_setup_arg(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - if jit_caller_remove_empty_kw_splat(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - - if argc != iseq.body.param.lead_num - # argument_arity_error - return CantCompile - end - - return 0 - elsif C.rb_iseq_only_optparam_p(iseq) - if jit_caller_setup_arg(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - if jit_caller_remove_empty_kw_splat(jit, ctx, asm, flags) == CantCompile - return CantCompile - end - - lead_num = iseq.body.param.lead_num - opt_num = iseq.body.param.opt_num - opt = argc - lead_num - - if opt < 0 || opt > opt_num - asm.incr_counter(:send_arity) - return CantCompile - end - - # Qnil push is handled in jit_push_frame - - return iseq.body.param.opt_table[opt] - elsif C.rb_iseq_only_kwparam_p(iseq) && (flags & C.VM_CALL_ARGS_SPLAT) == 0 - asm.incr_counter(:send_iseq_kwparam) - return CantCompile - end - end - - # We don't support setup_parameters_complex - asm.incr_counter(:send_iseq_kw_splat) - return CantCompile - end - - # CALLER_SETUP_ARG: Return CantCompile if not supported - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_caller_setup_arg(jit, ctx, asm, flags) - if flags & C.VM_CALL_ARGS_SPLAT != 0 - # We don't support vm_caller_setup_arg_splat - asm.incr_counter(:send_args_splat) - return CantCompile - end - if flags & (C.VM_CALL_KWARG | C.VM_CALL_KW_SPLAT) != 0 - # We don't support keyword args either - asm.incr_counter(:send_kwarg) - return CantCompile - end - end - - # CALLER_REMOVE_EMPTY_KW_SPLAT: Return CantCompile if not supported - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def jit_caller_remove_empty_kw_splat(jit, ctx, asm, flags) - if (flags & C.VM_CALL_KW_SPLAT) > 0 - # We don't support removing the last Hash argument - asm.incr_counter(:send_kw_splat) - return CantCompile - end - end - - # Generate RARRAY_LEN. For array_opnd, use Opnd::Reg to reduce memory access, - # and use Opnd::Mem to save registers. - def jit_array_len(asm, array_reg, len_reg) - asm.comment('get array length for embedded or heap') - - # Pull out the embed flag to check if it's an embedded array. - asm.mov(len_reg, [array_reg, C.RBasic.offsetof(:flags)]) - - # Get the length of the array - asm.and(len_reg, C.RARRAY_EMBED_LEN_MASK) - asm.sar(len_reg, C.RARRAY_EMBED_LEN_SHIFT) - - # Conditionally move the length of the heap array - asm.test([array_reg, C.RBasic.offsetof(:flags)], C.RARRAY_EMBED_FLAG) - - # Select the array length value - asm.cmovz(len_reg, [array_reg, C.RArray.offsetof(:as, :heap, :len)]) - end - - def assert_equal(left, right) - if left != right - raise "'#{left.inspect}' was not '#{right.inspect}'" - end - end - - def fixnum?(obj) - (C.to_value(obj) & C.RUBY_FIXNUM_FLAG) == C.RUBY_FIXNUM_FLAG - end - - def flonum?(obj) - (C.to_value(obj) & C.RUBY_FLONUM_MASK) == C.RUBY_FLONUM_FLAG - end - - def static_symbol?(obj) - (C.to_value(obj) & 0xff) == C.RUBY_SYMBOL_FLAG - end - - def shape_too_complex?(obj) - C.rb_shape_get_shape_id(obj) == C.OBJ_TOO_COMPLEX_SHAPE_ID - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - # @param asm [RubyVM::MJIT::Assembler] - def defer_compilation(jit, ctx, asm) - # Make a stub to compile the current insn - stub_next_block(jit.iseq, jit.pc, ctx, asm, comment: 'defer_compilation') - end - - def stub_next_block(iseq, pc, ctx, asm, comment: 'stub_next_block') - branch_stub = BranchStub.new( - iseq:, - shape: Default, - target0: BranchTarget.new(ctx:, pc:), - ) - branch_stub.target0.address = Assembler.new.then do |ocb_asm| - @exit_compiler.compile_branch_stub(ctx, ocb_asm, branch_stub, true) - @ocb.write(ocb_asm) - end - branch_stub.compile = proc do |branch_asm| - branch_asm.comment(comment) - branch_asm.stub(branch_stub) do - case branch_stub.shape - in Default - branch_asm.jmp(branch_stub.target0.address) - in Next0 - # Just write the block without a jump - end - end - end - branch_stub.compile.call(asm) - end - - # @param jit [RubyVM::MJIT::JITState] - # @param ctx [RubyVM::MJIT::Context] - def side_exit(jit, ctx) - if side_exit = jit.side_exits[jit.pc] - return side_exit - end - asm = Assembler.new - @exit_compiler.compile_side_exit(jit.pc, ctx, asm) - jit.side_exits[jit.pc] = @ocb.write(asm) - end - - def counted_exit(side_exit, name) - asm = Assembler.new - asm.incr_counter(name) - asm.jmp(side_exit) - @ocb.write(asm) - end - - def def_iseq_ptr(cme_def) - C.rb_iseq_check(cme_def.body.iseq.iseqptr) - end - - def to_value(obj) - GC_REFS << obj - C.to_value(obj) - end - end -end |