akr	2013-06-20 22:52:19 +0900 (Thu, 20 Jun 2013)

  New Revision: 41500

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=41500

  Log:
    * bignum.c (bignorm): Don't call bigtrunc if the result is a fixnum.

  Modified files:
    trunk/ChangeLog
    trunk/bignum.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 41499)
+++ ChangeLog	(revision 41500)
@@ -1,3 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Thu Jun 20 22:49:27 2013  Tanaka Akira  <akr@f...>
+
+	* bignum.c (bignorm): Don't call bigtrunc if the result is a fixnum.
+
 Thu Jun 20 22:29:42 2013  Tanaka Akira  <akr@f...>
 
 	* bignum.c (rb_uint2big): Refactored.
Index: bignum.c
===================================================================
--- bignum.c	(revision 41499)
+++ bignum.c	(revision 41500)
@@ -322,7 +322,9 @@ static VALUE https://github.com/ruby/ruby/blob/trunk/bignum.c#L322
 bignorm(VALUE x)
 {
     if (RB_TYPE_P(x, T_BIGNUM)) {
-	x = bigfixize(bigtrunc(x));
+	x = bigfixize(x);
+        if (!FIXNUM_P(x))
+            bigtrunc(x);
     }
     return x;
 }

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