diff options
| 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 /vm_insnhelper.h | |
| parent | ce5af582a0552d1ccbe66e8b3ee3ca046f6b18c3 (diff) | |
| download | ruby-b3b5e626ad69bf22be3228f847f94e1b68f40888.tar.gz | |
* 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 'vm_insnhelper.h')
| -rw-r--r-- | vm_insnhelper.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/vm_insnhelper.h b/vm_insnhelper.h index d78a84c3dc..4d5f0e36b6 100644 --- a/vm_insnhelper.h +++ b/vm_insnhelper.h @@ -211,9 +211,15 @@ enum vm_regan_acttype { #define SYMBOL_REDEFINED_OP_FLAG (1 << 6) #define TIME_REDEFINED_OP_FLAG (1 << 7) -#define FIXNUM_2_P(a, b) ((a) & (b) & 1) #define BASIC_OP_UNREDEFINED_P(op, klass) (LIKELY((ruby_vm_redefined_flag[(op)]&(klass)) == 0)) -#define HEAP_CLASS_OF(obj) RBASIC(obj)->klass + +#define FIXNUM_2_P(a, b) ((a) & (b) & 1) +#if USE_FLONUM +#define FLONUM_2_P(a, b) (((((a)^2) | ((b)^2)) & 3) == 0) /* (FLONUM_P(a) && FLONUM_P(b)) */ +#else +#define FLONUM_2_P(a, b) 0 +#endif +#define HEAP_CLASS_OF(obj) (RBASIC(obj)->klass) #ifndef USE_IC_FOR_SPECIALIZED_METHOD #define USE_IC_FOR_SPECIALIZED_METHOD 1 |