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path: root/tool/ruby_vm/views/_insn_sp_pc_dependency.erb
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%# -*- C -*-
%# Copyright (c) 2019 Takashi Kokubun.  All rights reserved.
%#
%# This file is a part of  the programming language Ruby.  Permission is hereby
%# granted, to either  redistribute and/or modify this file,  provided that the
%# conditions mentioned  in the  file COPYING  are met.   Consult the  file for
%# details.
%#
PUREFUNC(MAYBE_UNUSED(static bool insn_may_depend_on_sp_or_pc(int insn, const VALUE *opes)));

static bool
insn_may_depend_on_sp_or_pc(int insn, const VALUE *opes)
{
    switch (insn) {
% RubyVM::Instructions.each do |insn|
%   # handles_sp?:  If true, it requires to move sp in JIT
%   # always_leaf?: If false, it may call an arbitrary method. pc should be moved
%   #               before the call, and the method may refer to caller's pc (lineno).
%   unless !insn.is_a?(RubyVM::TraceInstructions) && !insn.handles_sp? && insn.always_leaf?
      case <%= insn.bin %>:
%   end
% end
        return true;
      default:
        return false;
    }
}