class RubyVM::RJIT::JITState
Public Class Methods
new(side_exit_for_pc: {}, record_boundary_patch_point: false, **)
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Calls superclass method
# File ruby_vm/rjit/jit_state.rb, line 11 def initialize(side_exit_for_pc: {}, record_boundary_patch_point: false, **) = super def insn Compiler.decode_insn(C.VALUE.new(pc).*) end def operand(index, signed: false, ruby: false) addr = pc + (index + 1) * Fiddle::SIZEOF_VOIDP value = Fiddle::Pointer.new(addr)[0, Fiddle::SIZEOF_VOIDP].unpack(signed ? 'q' : 'Q')[0] if ruby value = C.to_ruby(value) end value end def at_current_insn? pc == cfp.pc.to_i end def peek_at_local(n) local_table_size = iseq.body.local_table_size offset = -C::VM_ENV_DATA_SIZE - local_table_size + n + 1 value = (cfp.ep + offset).* C.to_ruby(value) end def peek_at_stack(depth_from_top) raise 'not at current insn' unless at_current_insn? offset = -(1 + depth_from_top) # rb_rjit_branch_stub_hit updates SP, so you don't need to worry about sp_offset value = (cfp.sp + offset).* C.to_ruby(value) end def peek_at_self C.to_ruby(cfp.self) end def peek_at_block_handler(level) ep = ep_at_level(cfp, level:) ep[C::VM_ENV_DATA_INDEX_SPECVAL] end private def ep_at_level(cfp, level:) ep = cfp.ep level.times do # VM_ENV_PREV_EP ep = C.VALUE.new(ep[C::VM_ENV_DATA_INDEX_SPECVAL] & ~0x03) end ep end end
Public Instance Methods
at_current_insn?()
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# File ruby_vm/rjit/jit_state.rb, line 26 def at_current_insn? pc == cfp.pc.to_i end
ep_at_level(cfp, level:)
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# File ruby_vm/rjit/jit_state.rb, line 56 def ep_at_level(cfp, level:) ep = cfp.ep level.times do # VM_ENV_PREV_EP ep = C.VALUE.new(ep[C::VM_ENV_DATA_INDEX_SPECVAL] & ~0x03) end ep end
insn()
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# File ruby_vm/rjit/jit_state.rb, line 13 def insn Compiler.decode_insn(C.VALUE.new(pc).*) end
operand(index, signed: false, ruby: false)
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# File ruby_vm/rjit/jit_state.rb, line 17 def operand(index, signed: false, ruby: false) addr = pc + (index + 1) * Fiddle::SIZEOF_VOIDP value = Fiddle::Pointer.new(addr)[0, Fiddle::SIZEOF_VOIDP].unpack(signed ? 'q' : 'Q')[0] if ruby value = C.to_ruby(value) end value end
peek_at_block_handler(level)
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# File ruby_vm/rjit/jit_state.rb, line 49 def peek_at_block_handler(level) ep = ep_at_level(cfp, level:) ep[C::VM_ENV_DATA_INDEX_SPECVAL] end
peek_at_local(n)
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# File ruby_vm/rjit/jit_state.rb, line 30 def peek_at_local(n) local_table_size = iseq.body.local_table_size offset = -C::VM_ENV_DATA_SIZE - local_table_size + n + 1 value = (cfp.ep + offset).* C.to_ruby(value) end
peek_at_self()
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# File ruby_vm/rjit/jit_state.rb, line 45 def peek_at_self C.to_ruby(cfp.self) end
peek_at_stack(depth_from_top)
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# File ruby_vm/rjit/jit_state.rb, line 37 def peek_at_stack(depth_from_top) raise 'not at current insn' unless at_current_insn? offset = -(1 + depth_from_top) # rb_rjit_branch_stub_hit updates SP, so you don't need to worry about sp_offset value = (cfp.sp + offset).* C.to_ruby(value) end