diff options
Diffstat (limited to 'tool/instruction.rb')
| -rwxr-xr-x | tool/instruction.rb | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/tool/instruction.rb b/tool/instruction.rb index 45d57c1890..a82ac2ccc0 100755 --- a/tool/instruction.rb +++ b/tool/instruction.rb @@ -684,6 +684,9 @@ class RubyVM push_ba = insn.pushsc raise "unsupport" if push_ba[0].size > 0 && push_ba[1].size > 0 + n = 0 + push_ba.each {|pushs| n += pushs.length} + commit " CHECK_STACK_OVERFLOW(REG_CFP, #{n});" if n > 0 push_ba.each{|pushs| pushs.each{|r| commit " PUSH(SCREG(#{r}));" @@ -816,13 +819,22 @@ class RubyVM commit " #define LABEL_IS_SC(lab) LABEL_##lab##_###{insn.sc.size == 0 ? 't' : 'f'}" end + def each_footer_stack_val insn + insn.rets.reverse_each{|v| + break if v[1] == '...' + yield v + } + end + def make_footer_stack_val insn comment " /* push stack val */" - insn.rets.reverse_each{|v| - if v[1] == '...' - break - end + n = 0 + each_footer_stack_val(insn){|v| + n += 1 unless v[2] + } + commit " CHECK_STACK_OVERFLOW(REG_CFP, #{n});" if n > 0 + each_footer_stack_val(insn){|v| if v[2] commit " SCREG(#{v[2]}) = #{v[1]};" else |