diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-23 14:12:27 +0000 |
---|---|---|
committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-23 14:12:27 +0000 |
commit | 4ea610cf086fa1c9bb5f196a5cf5c159d0848b06 (patch) | |
tree | 2358c4305ecb2571e6769bea99376fa27fa53ab2 | |
parent | ae0ddd8df61a1947f6b6fd085b261d34e7511378 (diff) | |
download | ruby-4ea610cf086fa1c9bb5f196a5cf5c159d0848b06.tar.gz |
compile.c: remove redundant trace insn
* compile.c (iseq_peephole_optimize): remove successive line trace
instructions except for the last.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | compile.c | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -2279,6 +2279,17 @@ iseq_peephole_optimize(rb_iseq_t *iseq, LINK_ELEMENT *list, const int do_tailcal } } } + + #define IS_TRACE_LINE(insn) \ + (IS_INSN_ID(insn, trace) && \ + OPERAND_AT(insn, 0) == INT2FIX(RUBY_EVENT_LINE)) + if (IS_TRACE_LINE(iobj) && iobj->link.prev && IS_INSN(iobj->link.prev)) { + INSN *piobj = (INSN *)iobj->link.prev; + if (IS_TRACE_LINE(piobj)) { + REMOVE_ELEM(iobj->link.prev); + } + } + return COMPILE_OK; } |