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|
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
@invariants = Invariants.new(cb, ocb, exit_compiler)
# 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}")
# 11/101
case insn.name
# nop
# getlocal
# setlocal
# getblockparam
# setblockparam
# getblockparamproxy
# getspecial
# setspecial
# getinstancevariable
# setinstancevariable
# getclassvariable
# setclassvariable
# opt_getconstant_path
# getconstant
# 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
# putstring
# concatstrings
# anytostring
# toregexp
# intern
# newarray
# newarraykwsplat
# duparray
# duphash
# expandarray
# concatarray
# splatarray
# newhash
# newrange
# pop
# dup
# dupn
# swap
# opt_reverse
# topn
# setn
# adjuststack
# defined
# checkmatch
# checkkeyword
# checktype
# defineclass
# definemethod
# definesmethod
# send
when :opt_send_without_block then opt_send_without_block(jit, ctx, asm)
# objtostring
# opt_str_freeze
# opt_nil_p
# opt_str_uminus
# opt_newarray_max
# opt_newarray_min
# invokesuper
# invokeblock
when :leave then leave(jit, ctx, asm)
# throw
# jump
# branchif
when :branchunless then branchunless(jit, ctx, asm)
# branchnil
# once
# opt_case_dispatch
# opt_plus
when :opt_minus then opt_minus(jit, ctx, asm)
# opt_mult
# opt_div
# opt_mod
# opt_eq
# opt_neq
when :opt_lt then opt_lt(jit, ctx, asm)
# opt_le
# opt_gt
# opt_ge
# opt_ltlt
# opt_and
# opt_or
# opt_aref
# opt_aset
# opt_aset_with
# opt_aref_with
# opt_length
# opt_size
# opt_empty_p
# opt_succ
# opt_not
# opt_regexpmatch2
# invokebuiltin
# opt_invokebuiltin_delegate
# opt_invokebuiltin_delegate_leave
when :getlocal_WC_0 then getlocal_WC_0(jit, ctx, asm)
# setlocal_WC_0
# setlocal_WC_1
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
#
# nop
# getlocal
# setlocal
# getblockparam
# setblockparam
# getblockparamproxy
# getspecial
# setspecial
# getinstancevariable
# setinstancevariable
# getclassvariable
# setclassvariable
# opt_getconstant_path
# getconstant
# setconstant
# getglobal
# setglobal
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def putnil(jit, ctx, asm)
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
asm.mov([SP, C.VALUE.size * ctx.stack_size], Qnil)
ctx.stack_push(1)
KeepCompiling
end
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def putself(jit, ctx, asm)
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
asm.mov(:rax, [CFP, C.rb_control_frame_t.offsetof(:self)])
asm.mov([SP, C.VALUE.size * ctx.stack_size], :rax)
ctx.stack_push(1)
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
# TODO: GC offsets
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
if asm.imm32?(val)
asm.mov([SP, C.VALUE.size * ctx.stack_size], val)
else # 64-bit immediates can't be directly written to memory
asm.mov(:rax, val)
asm.mov([SP, C.VALUE.size * ctx.stack_size], :rax)
end
ctx.stack_push(1)
KeepCompiling
end
# putspecialobject
# putstring
# concatstrings
# anytostring
# toregexp
# intern
# newarray
# newarraykwsplat
# duparray
# duphash
# expandarray
# concatarray
# splatarray
# newhash
# newrange
# pop
# dup
# dupn
# swap
# opt_reverse
# topn
# setn
# adjuststack
# defined
# checkmatch
# checkkeyword
# checktype
# defineclass
# definemethod
# definesmethod
# send
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
# @param cd `RubyVM::MJIT::CPointer::Struct_rb_call_data`
def opt_send_without_block(jit, ctx, asm)
cd = C.rb_call_data.new(jit.operand(0))
jit_call_method(jit, ctx, asm, cd)
end
# objtostring
# opt_str_freeze
# opt_nil_p
# opt_str_uminus
# opt_newarray_max
# opt_newarray_min
# invokesuper
# 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)
compile_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)
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
asm.mov(:rax, [SP])
# 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
# jump
# branchif
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def branchunless(jit, ctx, asm)
# TODO: check ints for backward branches
# TODO: skip check for known truthy
# This `test` sets ZF only for Qnil and Qfalse, which let jz jump.
asm.test([SP, C.VALUE.size * (ctx.stack_size - 1)], ~Qnil)
ctx.stack_pop(1)
# Set stubs
# TODO: reuse already-compiled blocks jumped from different blocks
branch_stub = BranchStub.new(
iseq: jit.iseq,
ctx: ctx.dup,
branch_target_pc: jit.pc + (jit.insn.len + jit.operand(0)) * C.VALUE.size,
fallthrough_pc: jit.pc + jit.insn.len * C.VALUE.size,
)
branch_stub.branch_target_addr = Assembler.new.then do |ocb_asm|
@exit_compiler.compile_branch_stub(jit, ctx, ocb_asm, branch_stub, true)
@ocb.write(ocb_asm)
end
branch_stub.fallthrough_addr = Assembler.new.then do |ocb_asm|
@exit_compiler.compile_branch_stub(jit, ctx, ocb_asm, branch_stub, false)
@ocb.write(ocb_asm)
end
# Prepare codegen for all cases
branch_stub.branch_target_next = proc do |branch_asm|
branch_asm.stub(branch_stub) do
branch_asm.comment('branch_target_next')
branch_asm.jnz(branch_stub.fallthrough_addr)
end
end
branch_stub.fallthrough_next = proc do |branch_asm|
branch_asm.stub(branch_stub) do
branch_asm.comment('fallthrough_next')
branch_asm.jz(branch_stub.branch_target_addr)
end
end
branch_stub.neither_next = proc do |branch_asm|
branch_asm.stub(branch_stub) do
branch_asm.comment('neither_next')
branch_asm.jz(branch_stub.branch_target_addr)
branch_asm.jmp(branch_stub.fallthrough_addr)
end
end
# Just jump to stubs
branch_stub.neither_next.call(asm)
EndBlock
end
# branchnil
# once
# opt_case_dispatch
# opt_plus
# @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)
unless @invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_MINUS)
return CantCompile
end
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
recv_index = ctx.stack_size - 2
obj_index = ctx.stack_size - 1
asm.comment('guard recv is fixnum') # TODO: skip this with type information
asm.test([SP, C.VALUE.size * recv_index], C.RUBY_FIXNUM_FLAG)
asm.jz(side_exit(jit, ctx))
asm.comment('guard obj is fixnum') # TODO: skip this with type information
asm.test([SP, C.VALUE.size * obj_index], C.RUBY_FIXNUM_FLAG)
asm.jz(side_exit(jit, ctx))
asm.mov(:rax, [SP, C.VALUE.size * recv_index])
asm.mov(:rcx, [SP, C.VALUE.size * obj_index])
asm.sub(:rax, :rcx)
asm.jo(side_exit(jit, ctx))
asm.add(:rax, 1)
asm.mov([SP, C.VALUE.size * recv_index], :rax)
ctx.stack_pop(1)
KeepCompiling
else
CantCompile # TODO: delegate to send
end
end
# opt_mult
# opt_div
# opt_mod
# opt_eq
# opt_neq
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def opt_lt(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)
unless @invariants.assume_bop_not_redefined(jit, C.INTEGER_REDEFINED_OP_FLAG, C.BOP_LT)
return CantCompile
end
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
recv_index = ctx.stack_size - 2
obj_index = ctx.stack_size - 1
asm.comment('guard recv is fixnum') # TODO: skip this with type information
asm.test([SP, C.VALUE.size * recv_index], C.RUBY_FIXNUM_FLAG)
asm.jz(side_exit(jit, ctx))
asm.comment('guard obj is fixnum') # TODO: skip this with type information
asm.test([SP, C.VALUE.size * obj_index], C.RUBY_FIXNUM_FLAG)
asm.jz(side_exit(jit, ctx))
asm.mov(:rax, [SP, C.VALUE.size * obj_index])
asm.cmp([SP, C.VALUE.size * recv_index], :rax)
asm.mov(:rax, Qfalse)
asm.mov(:rcx, Qtrue)
asm.cmovl(:rax, :rcx)
asm.mov([SP, C.VALUE.size * recv_index], :rax)
ctx.stack_pop(1)
KeepCompiling
else
CantCompile # TODO: delegate to send
end
end
# opt_le
# opt_gt
# opt_ge
# opt_ltlt
# opt_and
# opt_or
# opt_aref
# opt_aset
# opt_aset_with
# opt_aref_with
# opt_length
# opt_size
# opt_empty_p
# opt_succ
# opt_not
# opt_regexpmatch2
# invokebuiltin
# opt_invokebuiltin_delegate
# opt_invokebuiltin_delegate_leave
# @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)
level = 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
asm.mov([SP, C.VALUE.size * ctx.stack_size], :rax)
ctx.stack_push(1)
KeepCompiling
end
# getlocal_WC_1
# setlocal_WC_0
# setlocal_WC_1
# @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
#
# Helpers
#
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
def compile_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
# vm_call_method (vm_sendish -> vm_call_general -> vm_call_method)
# @param jit [RubyVM::MJIT::JITState]
# @param ctx [RubyVM::MJIT::Context]
# @param asm [RubyVM::MJIT::Assembler]
# @param cd `RubyVM::MJIT::CPointer::Struct_rb_call_data`
def jit_call_method(jit, ctx, asm, cd)
ci = cd.ci
argc = C.vm_ci_argc(ci)
mid = C.vm_ci_mid(ci)
flags = C.vm_ci_flag(ci)
unless jit.at_current_insn?
defer_compilation(jit, ctx, asm)
return EndBlock
end
if flags & C.VM_CALL_KW_SPLAT != 0
# recv_index calculation may not work for this
return CantCompile
end
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
recv_depth = argc + ((flags & C.VM_CALL_ARGS_BLOCKARG == 0) ? 0 : 1)
recv_index = ctx.stack_size - 1 - recv_depth
comptime_recv = jit.peek_at_stack(recv_depth)
comptime_recv_klass = C.rb_class_of(comptime_recv)
# Guard the receiver class (part of vm_search_method_fastpath)
if comptime_recv_klass.singleton_class?
asm.comment('guard known object with singleton class')
asm.mov(:rax, C.to_value(comptime_recv))
asm.cmp([SP, C.VALUE.size * recv_index], :rax)
asm.jne(side_exit(jit, ctx))
else
# TODO: support more classes
return CantCompile
end
# Do method lookup (vm_cc_cme(cc) != NULL)
cme = C.rb_callable_method_entry(comptime_recv_klass, mid)
if cme.nil?
return CantCompile # We don't support vm_call_method_name
end
# 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
return CantCompile
end
when C.METHOD_VISI_PROTECTED
return CantCompile # TODO: support this
else
raise 'unreachable'
end
# Invalidate on redefinition (part of vm_search_method_fastpath)
@invariants.assume_method_lookup_stable(jit, cme)
jit_call_method_each_type(jit, ctx, asm, ci, argc, flags, cme)
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, ci, argc, flags, cme)
case cme.def.type
when C.VM_METHOD_TYPE_ISEQ
jit_call_iseq_setup(jit, ctx, asm, ci, cme, flags, argc)
else
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, ci, cme, flags, argc)
iseq = def_iseq_ptr(cme.def)
opt_pc = jit_callee_setup_arg(jit, ctx, asm, ci, flags, iseq)
if opt_pc == CantCompile
# We hit some unsupported path of vm_callee_setup_arg
return CantCompile
end
if flags & C.VM_CALL_TAILCALL != 0
# We don't support vm_call_iseq_setup_tailcall
return CantCompile
end
jit_call_iseq_setup_normal(jit, ctx, asm, ci, cme, flags, argc, iseq)
end
# vm_call_iseq_setup_normal (vm_call_iseq_setup_2 -> vm_call_iseq_setup_normal)
def jit_call_iseq_setup_normal(jit, ctx, asm, ci, cme, flags, argc, iseq)
# Save caller SP and PC before pushing a callee frame for backtrace and side exits
asm.comment('save SP to caller CFP')
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
sp_index = ctx.stack_size - 1 - argc - ((flags & C.VM_CALL_ARGS_BLOCKARG == 0) ? 0 : 1) # Pop receiver and arguments for side exits
asm.lea(:rax, [SP, C.VALUE.size * sp_index])
asm.mov([CFP, C.rb_control_frame_t.offsetof(:sp)], :rax)
asm.comment('save PC to caller CFP')
next_pc = jit.pc + jit.insn.len * C.VALUE.size # Use the next one for backtrace and side exits
asm.mov(:rax, next_pc)
asm.mov([CFP, C.rb_control_frame_t.offsetof(:pc)], :rax)
frame_type = C.VM_FRAME_MAGIC_METHOD | C.VM_ENV_FLAG_LOCAL
jit_push_frame(jit, ctx, asm, ci, cme, flags, argc, iseq, frame_type, next_pc)
end
# vm_push_frame
#
# Frame structure:
# | args | locals | cme/cref | block_handler/prev EP | frame type (EP here) | stack bottom (SP here)
def jit_push_frame(jit, ctx, asm, ci, cme, flags, argc, iseq, frame_type, next_pc)
# TODO: stack overflow check
local_size = iseq.body.local_table_size
if local_size > 0
# TODO: support local variables
return CantCompile
end
asm.comment('move SP register to callee SP')
assert_equal(ctx.sp_offset, ctx.stack_size) # TODO: support SP motion
sp_offset = ctx.stack_size + local_size + 3
asm.add(SP, C.VALUE.size * sp_offset)
asm.comment('set cme')
asm.mov(:rax, cme.to_i)
asm.mov([SP, C.VALUE.size * -3], :rax)
asm.comment('set specval')
asm.mov([SP, C.VALUE.size * -2], C.VM_BLOCK_HANDLER_NONE)
asm.comment('set frame type')
asm.mov([SP, C.VALUE.size * -1], frame_type)
asm.comment('move CFP register to callee CFP')
asm.sub(CFP, C.rb_control_frame_t.size);
# Not setting PC since JIT code will do that as needed
asm.comment('set SP to callee CFP')
asm.mov([CFP, C.rb_control_frame_t.offsetof(:sp)], SP)
asm.comment('set ISEQ to callee CFP')
asm.mov(:rax, iseq.to_i)
asm.mov([CFP, C.rb_control_frame_t.offsetof(:iseq)], :rax)
asm.comment('set self to callee CFP')
self_index = -(1 + argc + ((flags & C.VM_CALL_ARGS_BLOCKARG == 0) ? 0 : 1) + local_size + 3)
asm.mov(:rax, [SP, C.VALUE.size * self_index])
asm.mov([CFP, C.rb_control_frame_t.offsetof(:self)], :rax)
asm.comment('set EP to callee CFP')
asm.lea(:rax, [SP, C.VALUE.size * -1])
asm.mov([CFP, C.rb_control_frame_t.offsetof(:ep)], :rax)
asm.comment('set block_code to callee CFP')
asm.mov([CFP, C.rb_control_frame_t.offsetof(:block_code)], 0)
asm.comment('set BP to callee CFP')
asm.mov([CFP, C.rb_control_frame_t.offsetof(:__bp__)], SP) # TODO: get rid of this!!
# Stub cfp->jit_return
return_ctx = ctx.dup
return_ctx.sp_offset = 1 # SP is in the position after popping a receiver and arguments
jit_return_stub = BlockStub.new(iseq: jit.iseq, pc: next_pc, ctx: return_ctx)
jit_return = Assembler.new.then do |ocb_asm|
@exit_compiler.compile_block_stub(ctx, ocb_asm, jit_return_stub)
@ocb.write(ocb_asm)
end
jit_return_stub.change_block = proc do |jump_asm, new_addr|
jump_asm.comment('set jit_return to callee CFP')
jump_asm.stub(jit_return_stub) do
jump_asm.mov(:rax, new_addr)
jump_asm.mov([CFP, C.rb_control_frame_t.offsetof(:jit_return)], :rax)
end
end
jit_return_stub.change_block.call(asm, jit_return)
asm.comment('set callee CFP to ec->cfp')
asm.mov([EC, C.rb_execution_context_t.offsetof(:cfp)], CFP)
# Jump to a stub for the callee ISEQ
callee_ctx = Context.new
compile_block_stub(iseq, iseq.body.iseq_encoded.to_i, callee_ctx, asm)
EndBlock
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, ci, flags, 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 C.vm_ci_argc(ci) != iseq.body.param.lead_num
# argument_arity_error
return CantCompile
end
return 0
else
# We don't support the remaining `else if`s yet.
return CantCompile
end
end
# We don't support setup_parameters_complex
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
return CantCompile
end
if flags & (C.VM_CALL_KWARG | C.VM_CALL_KW_SPLAT) != 0
# We don't support keyword args either
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
return CantCompile
end
end
def assert_equal(left, right)
if left != right
raise "'#{left.inspect}' was not '#{right.inspect}'"
end
end
def fixnum?(obj)
flag = C.RUBY_FIXNUM_FLAG
(C.to_value(obj) & flag) == flag
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
compile_block_stub(jit.iseq, jit.pc, ctx, asm, comment: 'defer_compilation: block stub')
end
def compile_block_stub(iseq, pc, ctx, asm, comment: 'block stub')
block_stub = BlockStub.new(iseq:, pc:, ctx: ctx.dup)
stub_hit = Assembler.new.then do |ocb_asm|
@exit_compiler.compile_block_stub(ctx, ocb_asm, block_stub)
@ocb.write(ocb_asm)
end
block_stub.change_block = proc do |jump_asm, new_addr|
jump_asm.comment(comment)
jump_asm.stub(block_stub) do
jump_asm.jmp(new_addr)
end
end
block_stub.change_block.call(asm, stub_hit)
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, ctx, asm)
jit.side_exits[jit.pc] = @ocb.write(asm)
end
def def_iseq_ptr(cme_def)
C.rb_iseq_check(cme_def.body.iseq.iseqptr)
end
end
end
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