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* vm_exec.c (vm_exec_core): add an UNLIKELY() hint.

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* vm_insnhelper.h (BASIC_OP_UNREDEFINED_P): add a LIKELY() hint.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19605 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2008-09-28 07:13:06 +00:00
parent 8d397604bf
commit 574027ba03
3 changed files with 8 additions and 2 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Sun Sep 28 12:36:09 2008 Koichi Sasada <ko1@atdot.net>
* vm_exec.c (vm_exec_core): add an UNLIKELY() hint.
* vm_insnhelper.h (BASIC_OP_UNREDEFINED_P): add a LIKELY() hint.
Sun Sep 28 12:04:18 2008 Nobuyoshi Nakada <nobu@ruby-lang.org>
* string.c (str_new): sets empty string to coderange 7bit.

2
vm_exec.c
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@ -83,7 +83,7 @@ vm_exec_core(rb_thread_t *th, VALUE initial)
#if OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
#include "vmtc.inc"
if (th == 0) {
if (UNLIKELY(th == 0)) {
#if OPT_STACK_CACHING
finish_insn_seq[0] = (VALUE)&&LABEL (finish_SC_ax_ax);
#else

2
vm_insnhelper.h
View file

@ -180,7 +180,7 @@ extern VALUE ruby_vm_redefined_flag;
/* optimize insn */
#define FIXNUM_2_P(a, b) ((a) & (b) & 1)
#define BASIC_OP_UNREDEFINED_P(op) ((ruby_vm_redefined_flag & (op)) == 0)
#define BASIC_OP_UNREDEFINED_P(op) (LIKELY((ruby_vm_redefined_flag & (op)) == 0))
#define HEAP_CLASS_OF(obj) RBASIC(obj)->klass
#define CALL_SIMPLE_METHOD(num, id, recv) do { \