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| author | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-08-23 07:22:40 +0000 |
|---|---|---|
| committer | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-08-23 07:22:40 +0000 |
| commit | b3b5e626ad69bf22be3228f847f94e1b68f40888 (patch) | |
| tree | 17e1c7ec5995e9ab60632bd2a9756695b32b614c /symbian | |
| parent | ce5af582a0552d1ccbe66e8b3ee3ca046f6b18c3 (diff) | |
* include/ruby/ruby.h: introduce flonum technique for
64bit CPU environment (sizeof(double) == sizeof(VALUE)).
flonum technique enables to avoid double object creation
if the double value d is in range about between
1.72723e-77 < |d| <= 1.15792e+77 or 0.0.
flonum Float value is immediate and their lowest two bits
are b10.
If flonum is activated, then USE_FLONUM macro is 1.
I'll write detailed in this technique on
https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/Flonum_tech
* benchmark/bmx_temp.rb: add an benchmark for simple
Float calculation.
* gc.c (id2ref, rb_obj_id): add flonum Float support.
* include/ruby/intern.h: move decl of rb_float_new(double)
to include/ruby/ruby.h.
* insns.def, vm.c, vm_insnhelper.c: add flonum optimization
and simplify source code.
* vm_insnhelper.h (FLONUM_2_P): added.
* marshal.c: support flonum output.
* numeric.c (rb_float_new_in_heap): added.
* parse.y: support flonum.
* random.c: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'symbian')
0 files changed, 0 insertions, 0 deletions