зеркало из https://github.com/github/ruby.git
compile.c: copy a short insn with leave
* compile.c (iseq_peephole_optimize): copy not only `leave`, with a non-operand instruction, which are not longer than `jump`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63248 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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425118b898
Коммит
4cae5353c0
18
compile.c
18
compile.c
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@ -2646,7 +2646,7 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
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optimize_checktype(iseq, iobj);
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optimize_checktype(iseq, iobj);
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if (IS_INSN_ID(iobj, jump)) {
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if (IS_INSN_ID(iobj, jump)) {
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INSN *niobj, *diobj, *piobj;
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INSN *niobj, *diobj, *piobj, *dniobj;
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diobj = (INSN *)get_destination_insn(iobj);
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diobj = (INSN *)get_destination_insn(iobj);
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niobj = (INSN *)get_next_insn(iobj);
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niobj = (INSN *)get_next_insn(iobj);
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@ -2677,7 +2677,10 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
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remove_unreachable_chunk(iseq, iobj->link.next);
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remove_unreachable_chunk(iseq, iobj->link.next);
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goto again;
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goto again;
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}
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}
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else if (IS_INSN_ID(diobj, leave)) {
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else if (IS_INSN_ID(diobj, leave) ? !(dniobj = 0) :
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(diobj->operand_size == 0 &&
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(dniobj = (INSN *)get_next_insn(diobj)) != 0 &&
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(IS_INSN_ID(dniobj, leave) || (dniobj = 0)))) {
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INSN *pop;
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INSN *pop;
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/*
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/*
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* jump LABEL
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* jump LABEL
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@ -2693,12 +2696,19 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
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*/
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*/
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/* replace */
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/* replace */
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unref_destination(iobj, 0);
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unref_destination(iobj, 0);
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iobj->insn_id = BIN(leave);
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iobj->insn_id = diobj->insn_id;
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iobj->operand_size = 0;
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iobj->operand_size = 0;
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iobj->insn_info = diobj->insn_info;
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iobj->insn_info = diobj->insn_info;
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if (dniobj) {
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dniobj = new_insn_body(iseq, dniobj->insn_info.line_no, BIN(leave), 0);
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ELEM_INSERT_NEXT(&iobj->link, &dniobj->link);
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}
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else {
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dniobj = iobj;
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}
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/* adjust stack depth */
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/* adjust stack depth */
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pop = new_insn_body(iseq, diobj->insn_info.line_no, BIN(pop), 0);
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pop = new_insn_body(iseq, diobj->insn_info.line_no, BIN(pop), 0);
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ELEM_INSERT_NEXT(&iobj->link, &pop->link);
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ELEM_INSERT_NEXT(&dniobj->link, &pop->link);
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goto again;
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goto again;
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}
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}
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else if ((piobj = (INSN *)get_prev_insn(iobj)) != 0 &&
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else if ((piobj = (INSN *)get_prev_insn(iobj)) != 0 &&
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