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* insns.def (opt_succ): use LONG_MAX as maximum Fixnum VALUE.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12744 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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usa 2007-07-12 12:40:49 +00:00
parent c13cd729bf
commit d504f64a3b
2 changed files with 5 additions and 2 deletions
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ChangeLog
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@ -1,3 +1,7 @@
Thu Jul 12 21:38:02 2007 NAKAMURA Usaku <usa@ruby-lang.org>
* insns.def (opt_succ): use LONG_MAX as maximum Fixnum VALUE.
Thu Jul 12 18:42:18 2007 Tanaka Akira <akr@fsij.org>
* range.c (range_max): use FIX2LONG instead of FIX2INT to avoid

3
insns.def
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@ -2304,8 +2304,7 @@ opt_succ
const VALUE obj = INT2FIX(1);
/* fixnum + INT2FIX(1) */
val = (recv + (obj & (~1)));
if ((~(recv ^ obj) & (recv ^ val)) &
((VALUE)0x01 << ((sizeof(VALUE) * CHAR_BIT) - 1))) {
if ((~(recv ^ obj) & (recv ^ val)) & (LONG_MAX + 1)) {
val = rb_big_plus(rb_int2big(FIX2LONG(recv)),
rb_int2big(FIX2LONG(obj)));
}