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* range.c (range_max): use FIX2LONG instead of FIX2INT to avoid

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RangeError by ((-0x80000001)...(-0x80000001)).max on LP64.

* insns.def (opt_plus): use FIX2LONG instead of FIX2INT to avoid
  RangeError by 0x3fffffffffffffff+1 on LP64.

* insns.def (opt_succ): don't use 0x80000000 which assumes 32bit VALUE.
  use FIX2LONG instead of FIX2INT.
  [ruby-dev:31190]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12743 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2007-07-12 09:52:48 +00:00
parent 4c289d8d10
commit c13cd729bf
3 changed files with 19 additions and 6 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
Thu Jul 12 18:42:18 2007 Tanaka Akira <akr@fsij.org>
* range.c (range_max): use FIX2LONG instead of FIX2INT to avoid
RangeError by ((-0x80000001)...(-0x80000001)).max on LP64.
* insns.def (opt_plus): use FIX2LONG instead of FIX2INT to avoid
RangeError by 0x3fffffffffffffff+1 on LP64.
* insns.def (opt_succ): don't use 0x80000000 which assumes 32bit VALUE.
use FIX2LONG instead of FIX2INT.
[ruby-dev:31190]
Thu Jul 12 17:03:15 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
* struct.c (rb_struct_init_copy): disallow changing the size.

11
insns.def
View file

@ -1677,8 +1677,8 @@ opt_plus
val = (recv + (obj & (~1)));
if ((~(recv ^ obj) & (recv ^ val)) &
((VALUE)0x01 << ((sizeof(VALUE) * CHAR_BIT) - 1))) {
val = rb_big_plus(rb_int2big(FIX2INT(recv)),
rb_int2big(FIX2INT(obj)));
val = rb_big_plus(rb_int2big(FIX2LONG(recv)),
rb_int2big(FIX2LONG(obj)));
}
#else
long a, b, c;
@ -2304,9 +2304,10 @@ opt_succ
const VALUE obj = INT2FIX(1);
/* fixnum + INT2FIX(1) */
val = (recv + (obj & (~1)));
if ((~(recv ^ obj) & (recv ^ val)) & 0x80000000) {
val = rb_big_plus(rb_int2big(FIX2INT(recv)),
rb_int2big(FIX2INT(obj)));
if ((~(recv ^ obj) & (recv ^ val)) &
((VALUE)0x01 << ((sizeof(VALUE) * CHAR_BIT) - 1))) {
val = rb_big_plus(rb_int2big(FIX2LONG(recv)),
rb_int2big(FIX2LONG(obj)));
}
}
else {

2
range.c
View file

@ -503,7 +503,7 @@ range_max(VALUE range)
return Qnil;
if (EXCL(range)) {
if (FIXNUM_P(e)) {
return INT2NUM(FIX2INT(e) - 1);
return LONG2NUM(FIX2LONG(e) - 1);
}
return rb_funcall(e, '-', 1, INT2FIX(1));
}