diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-01-25 12:00:00 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-01-25 12:00:00 +0000 |
commit | 845b3cfbf486f037e93ef520e344c3451e9559fc (patch) | |
tree | 6fb8278934594a7322b4579652762811e6852a6b /compile.c | |
parent | 07decad25f969908f7b2cc97208548605e35c5db (diff) |
compile.c: unnecessary freezing
* compile.c (iseq_peephole_optimize): get rid of freezing
dynamically created string to be duplicated immediately.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62039 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'compile.c')
-rw-r--r-- | compile.c | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -2832,6 +2832,22 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal } } + if (IS_INSN_ID(iobj, freezestring) && + IS_NEXT_INSN_ID(&iobj->link, send)) { + INSN *niobj = (INSN *)iobj->link.next; + struct rb_call_info *ci = (struct rb_call_info *)OPERAND_AT(niobj, 0); + /* + * freezestring debug_info + * send <:+@, 0, ARG_SIMPLE> + * => + * send <:+@, 0, ARG_SIMPLE> + */ + if ((ci->flag & VM_CALL_ARGS_SIMPLE) && ci->orig_argc == 0) { + ELEM_REMOVE(list); + return COMPILE_OK; + } + } + if (do_tailcallopt && (IS_INSN_ID(iobj, send) || IS_INSN_ID(iobj, opt_aref_with) || |