diff options
Diffstat (limited to 'tool/ruby_vm/views/_mjit_compile_getivar.erb')
| -rw-r--r-- | tool/ruby_vm/views/_mjit_compile_getivar.erb | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tool/ruby_vm/views/_mjit_compile_getivar.erb b/tool/ruby_vm/views/_mjit_compile_getivar.erb new file mode 100644 index 0000000000..630fd72959 --- /dev/null +++ b/tool/ruby_vm/views/_mjit_compile_getivar.erb @@ -0,0 +1,44 @@ +% # -*- mode:c; style:ruby; coding: utf-8; indent-tabs-mode: nil -*- +% # Copyright (c) 2018 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. +% +% # Optimized case of get_instancevariable instruction. +#if USE_IC_FOR_IVAR +{ +% # compiler: Prepare operands which may be used by `insn.call_attribute` +% insn.opes.each_with_index do |ope, i| + MAYBE_UNUSED(<%= ope.fetch(:decl) %>) = (<%= ope.fetch(:type) %>)operands[<%= i %>]; +% end +% +% # compiler: Consider receiver as T_OBJECT if ic->ic_serial is set + if (ic->ic_serial) { +% # JIT: optimize away motion of sp and pc. This path does not call rb_warning() and so it's always leaf and not `handles_sp`. +% # <%= render 'mjit_compile_pc_and_sp', locals: { insn: insn } -%> +% +% # JIT: prepare vm_getivar's arguments and variables + fprintf(f, "{\n"); + fprintf(f, " VALUE obj = GET_SELF();\n"); + fprintf(f, " const rb_serial_t ic_serial = (rb_serial_t)%"PRI_SERIALT_PREFIX"u;\n", ic->ic_serial); + fprintf(f, " const st_index_t index = %lu;\n", ic->ic_value.index); +% +% # JIT: cache hit path of vm_getivar, or cancel JIT. + fprintf(f, " if (LIKELY(RB_TYPE_P(obj, T_OBJECT) && ic_serial == RCLASS_SERIAL(RBASIC(obj)->klass) && index < ROBJECT_NUMIV(obj))) {\n"); + fprintf(f, " stack[%d] = ROBJECT_IVPTR(obj)[index];\n", b->stack_size); + fprintf(f, " }\n"); + fprintf(f, " else {\n"); + fprintf(f, " reg_cfp->pc = original_body_iseq + %d;\n", pos); + fprintf(f, " reg_cfp->sp = (VALUE *)reg_cfp->bp + %d;\n", b->stack_size + 1); + fprintf(f, " goto cancel;\n"); + fprintf(f, " }\n"); + +% # compiler: Move JIT compiler's internal stack pointer + b->stack_size += <%= insn.call_attribute('sp_inc') %>; + fprintf(f, "}\n"); + break; + } +} +#endif /* USE_IC_FOR_IVAR */ |