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%# -*- mode:c; style:ruby; coding: utf-8; indent-tabs-mode: nil -*-
%# Copyright (c) 2017 Urabe, Shyouhei. 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 int insn_stack_increase(int depth, int insn, const VALUE *opes)));
PUREFUNC(static rb_snum_t insn_stack_increase_dispatch(enum ruby_vminsn_type insn, const VALUE *opes));
rb_snum_t
insn_stack_increase_dispatch(enum ruby_vminsn_type insn, const VALUE *opes)
{
static const signed char t[] = {
% RubyVM::Instructions.each_slice 8 do |a|
<%= a.map { |i|
if i.has_attribute?('sp_inc')
'-127'
else
sprintf("%4d", i.rets.size - i.pops.size)
end
}.join(', ') -%>,
% end
};
signed char c = t[insn];
ASSERT_VM_INSTRUCTION_SIZE(t);
if (c != -127) {
return c;
}
else switch(insn) {
default:
UNREACHABLE;
% RubyVM::Instructions.each do |i|
% next unless i.has_attribute?('sp_inc')
case <%= i.bin %>:
return attr_sp_inc_<%= i.name %>(<%=
i.opes.map.with_index do |v, j|
i.cast_from_VALUE v, "opes[#{j}]"
end.join(", ")
%>);
% end
}
}
int
insn_stack_increase(int depth, int insn, const VALUE *opes)
{
enum ruby_vminsn_type itype = (enum ruby_vminsn_type)insn;
return depth + (int)insn_stack_increase_dispatch(itype, opes);
}
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