------- Comment #2 from kkojima at gcc dot gnu dot org 2009-08-09 22:44 -------
I've confirmed that 4.5 has the same problem and 4.3 doesn't.
> In this code, "tst r9,r9" is moved to wrong place as if
> "t" bit is not clobbered in __udiv_qrnnd_16.
>
> I guessed that missing "t" bit constraint in udiv_qrnnd macro
> caused this problem. So I tried following patch, but there was
> no effect.
I think you are right. Also your patch solves the problem in my
tests. Did you make strtod_l.i change as your patch does for
longlong.h?
--
kkojima at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |wrong-code
Known to fail| |4.4.1 4.5.0
Known to work| |4.3.4
Priority|P3 |P4
Last reconfirmed|0000-00-00 00:00:00 |2009-08-09 22:44:43
date| |
Summary|[4.4 Regression] SH: |[4.4/4.5 Regression] SH:
|miscompilation for sh4-linux|miscompilation for sh4-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41015
