diff options
| author | tmm1 <tmm1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-12-19 02:27:36 +0000 |
|---|---|---|
| committer | tmm1 <tmm1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-12-19 02:27:36 +0000 |
| commit | 4cd675ea9edeaeee7a640dd10037b92318ad6844 (patch) | |
| tree | 2a7854ec3957bcf1e205b823113fd1060f77c436 | |
| parent | 9797647e2546d44126e5d955e394c300a48d4201 (diff) | |
| download | ruby-4cd675ea9edeaeee7a640dd10037b92318ad6844.tar.gz | |
vm_insnhelper.c: optimize for loop
* vm_insnhelper.c (vm_call_iseq_setup_normal): simple for loop
condition optimization. this area shows up as a hotspot in VM
profiles.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44285 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | vm_insnhelper.c | 6 |
2 files changed, 9 insertions, 3 deletions
@@ -1,3 +1,9 @@ +Thu Dec 19 11:23:49 2013 Aman Gupta <ruby@tmm1.net> + + * vm_insnhelper.c (vm_call_iseq_setup_normal): simple for loop + condition optimization. this area shows up as a hotspot in VM + profiles. + Thu Dec 19 10:50:13 2013 Koichi Sasada <ko1@atdot.net> * gc.c (newobj_of): don't need to RBASIC_SET_CLASS() which includes WB diff --git a/vm_insnhelper.c b/vm_insnhelper.c index 08915c8b96..94da4b1c52 100644 --- a/vm_insnhelper.c +++ b/vm_insnhelper.c @@ -1228,13 +1228,13 @@ vm_call_iseq_setup_2(rb_thread_t *th, rb_control_frame_t *cfp, rb_call_info_t *c static inline VALUE vm_call_iseq_setup_normal(rb_thread_t *th, rb_control_frame_t *cfp, rb_call_info_t *ci) { - int i; + int i, local_size; VALUE *argv = cfp->sp - ci->argc; rb_iseq_t *iseq = ci->me->def->body.iseq; VALUE *sp = argv + iseq->arg_size; - /* clear local variables */ - for (i = 0; i < iseq->local_size - iseq->arg_size; i++) { + /* clear local variables (arg_size...local_size) */ + for (i = iseq->arg_size, local_size = iseq->local_size; i < local_size; i++) { *sp++ = Qnil; } |