From 7049d9c80d1ba859beb5d68c7a9de37d5c11b8e8 Mon Sep 17 00:00:00 2001 From: ko1 Date: Wed, 24 Aug 2011 06:31:15 +0000 Subject: * iseq.h, iseq.c, compile.c: Change the line number data structure to solve an issue reported at [ruby-dev:44413] [Ruby 1.9 - Bug #5217]. Before this fix, each instruction has an information including line number (iseq::iseq_insn_info_table). Instead of this data structure, recording only line number changing places (iseq::iseq_line_info_table). The order of entries in iseq_line_info_table is ascending order of iseq_line_info_table_entry::position. You can get a line number by an iseq and a program counter with this data structure. This fix reduces memory consumption of iseq (bytecode). On my measurement, a rails application consumes 21.8MB for iseq with this fix on the 32bit CPU. Without this fix, it consumes 24.7MB for iseq [ruby-dev:44415]. * proc.c: ditto. * vm_insnhelper.c: ditto. * vm_method.c: ditto. * vm.c (rb_vm_get_sourceline): change to use rb_iseq_line_no(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- vm_core.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'vm_core.h') diff --git a/vm_core.h b/vm_core.h index 66c3cda792..0120def4b9 100644 --- a/vm_core.h +++ b/vm_core.h @@ -176,8 +176,8 @@ struct rb_iseq_struct { unsigned short line_no; /* insn info, must be freed */ - struct iseq_insn_info_entry *insn_info_table; - size_t insn_info_size; + struct iseq_line_info_entry *line_info_table; + size_t line_info_size; ID *local_table; /* must free */ int local_table_size; -- cgit v1.2.3