array.c: Improve performance of Array#sort with float elements

* array.c (sort_2): improve performance of Array#sort with float elements.

* internal.h (cmp_opt_Float, cmp_opt_data): added for checking whether or not
  Float#<=> can be optimizable.

* numeric.c (rb_float_cmp): added for internal use.

* internal.h (rb_float_cmp): ditto.

[Bug #13340]
[ruby-dev:50023]
[Fix GH-1539]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58333 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/array.c b/array.c
index 329061f9c0..e07e91bc3c 100644
--- a/array.c
+++ b/array.c
@@ -2420,6 +2420,9 @@ sort_2(const void *ap, const void *bp, void *dummy)
     if (STRING_P(a) && STRING_P(b) && CMP_OPTIMIZABLE(data->cmp_opt, String)) {
 	return rb_str_cmp(a, b);
     }
+    if (RB_FLOAT_TYPE_P(a) && CMP_OPTIMIZABLE(data->cmp_opt, Float)) {
+	return rb_float_cmp(a, b);
+    }
 
     retval = rb_funcallv(a, id_cmp, 1, &b);
     n = rb_cmpint(retval, a, b);