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compile.c: splatarray peephole opt

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* compile.c (iseq_peephole_optimize): remove splatarray following
  always-array insn.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56908 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-11-28 02:02:40 +00:00
parent 8cbb7747cd
commit d6fdd1c330
1 changed files with 20 additions and 0 deletions
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20
compile.c
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@ -2256,6 +2256,26 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal
}
}
if (IS_INSN_ID(iobj, newarray) ||
IS_INSN_ID(iobj, duparray) ||
IS_INSN_ID(iobj, expandarray) ||
IS_INSN_ID(iobj, concatarray) ||
IS_INSN_ID(iobj, splatarray) ||
0) {
/*
* newarray N
* splatarray
* =>
* newarray N
* newarray always puts an array
*/
LINK_ELEMENT *next = iobj->link.next;
if (IS_INSN(next) && IS_INSN_ID(next, splatarray)) {
/* remove splatarray following always-array insn */
REMOVE_ELEM(next);
}
}
if (do_tailcallopt &&
(IS_INSN_ID(iobj, send) ||
IS_INSN_ID(iobj, opt_aref_with) ||