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+Sun Apr 24 04:21:27 2016 NARUSE, Yui <naruse@ruby-lang.org>
+
+ * vm_insnhelper.c (INLINE): define as `inline` when it is optimized.
+ define as `static inline` when it is not optimized to keep
+ the symbol generated.
+
+ * vm_insnhelper.c (vm_getivar): use `INLINE` to force inline
+ so that a compiler inlines it into vm_getinstancevariable
+ and optimizes out is_attr and related branches.
+
+ * vm_insnhelper.c (vm_getivar): use `inline` to recommend inline.
+ Without this vm1_ivar_set is degraded.
+
+ benchmark results:
+ minimum results in each 5 measurements.
+ Execution time (sec)
+ name ruby 2.4.0dev (2016-04-23 trunk 54727) [x86_64-linux] ruby 2.4.0dev (2016-04-23 trunk 54733) [x86_64-linux] built-ruby
+ loop_whileloop 0.641 0.642 0.646
+ vm1_ivar* 1.002 0.999 0.831
+ vm1_ivar_set* 0.369 1.106 0.362
+
+ Speedup ratio: compare with the result of `ruby 2.4.0dev (2016-04-23
+ trunk 54727) [x86_64-linux]' (greater is better)
+ name ruby 2.4.0dev (2016-04-23 trunk 54733) [x86_64-linux]
+ built-ruby
+ loop_whileloop
+ 0.998 0.991
+ vm1_ivar*
+ 1.003 1.205
+ vm1_ivar_set*
+ 0.334 1.018
+
Sat Apr 23 18:01:21 2016 NARUSE, Yui <naruse@ruby-lang.org>
* vm_insnhelper.c (vm_getivar): specify inline instead of static inline.