diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-23 14:12:27 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-04-23 14:12:27 +0000 |
commit | 2ede24a8f16385c14a27441308699ed42fcbb238 (patch) | |
tree | 2358c4305ecb2571e6769bea99376fa27fa53ab2 /compile.c | |
parent | 8c3d9d99d6955a93a4d9176536a454ccbab96186 (diff) |
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
Diffstat (limited to 'compile.c')
-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; } |