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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-11-10 03:45:10 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-11-10 03:45:10 +0000 |
commit | f11a85c72600026f6e26afe6dda2548c785ce1d3 (patch) | |
tree | 01b8f07d7f64848927c2170777b6a0d6cdc4c58d /compile.c | |
parent | f12746d165023fd0277a6817f870e1b12b4dc948 (diff) | |
download | ruby-f11a85c72600026f6e26afe6dda2548c785ce1d3.tar.gz |
compile.c: peephole
* compile.c (iseq_peephole_optimize): remove putting object to be
popped just soon.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52517 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'compile.c')
-rw-r--r-- | compile.c | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -2000,6 +2000,18 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal } } + if (iobj->insn_id == BIN(pop)) { + LINK_ELEMENT *prev = iobj->link.prev; + if (prev->type == ISEQ_ELEMENT_INSN) { + enum ruby_vminsn_type previ = ((INSN *)prev)->insn_id; + if (previ == BIN(putobject) || previ == BIN(putnil) || + previ == BIN(putself) || previ == BIN(putstring)) { + REMOVE_ELEM(prev); + REMOVE_ELEM(&iobj->link); + } + } + } + if (do_tailcallopt && iobj->insn_id == BIN(leave)) { /* * send ... |