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Re: bootstrap failure on HEAD
- From: "H. J. Lu" <hjl at lucon dot org>
- To: Dave Korn <dave dot korn at artimi dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Sun, 12 Nov 2006 08:49:46 -0800
- Subject: Re: bootstrap failure on HEAD
- References: <008f01c70669$138e8af0$a501a8c0@CAM.ARTIMI.COM>
On Sun, Nov 12, 2006 at 02:44:36PM -0000, Dave Korn wrote:
>
> I see this on linux but not on cygwin:
>
> make[3]: Leaving directory `/home/dk/gnu/obj'
> Comparing stages 2 and 3
> warning: ./cc1-checksum.o differs
> warning: ./cc1plus-checksum.o differs
> warning: ./cc1obj-checksum.o differs
> Bootstrap comparison failure!
> ./cfg.o differs
> ./cfgloopanal.o differs
> ./loop-iv.o differs
> ./predict.o differs
> ./profile.o differs
> ./value-prof.o differs
> ./ipa-inline.o differs
> make[2]: *** [compare] Error 1
> make[2]: Leaving directory `/home/dk/gnu/obj'
> make[1]: *** [stage3-bubble] Error 2
> make[1]: Leaving directory `/home/dk/gnu/obj'
> make: *** [all] Error 2
> [dk@pepper obj]$ ../gcc/config.guess
> i686-pc-linux-gnu
> [dk@pepper obj]$ uname -a
> Linux pepper.cam.artimi.com 2.4.18-14 #1 Wed Sep 4 13:35:50 EDT 2002 i686 i686
> i386 GNU/Linux
> [dk@pepper obj]$
Gcc mainline may miscompile gcc when -O2 is used. See
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29680
I have no problems on x86, x86-64 and ia64 with revision 118723 today
after reverting revision 117986. Can you try
http://gcc.gnu.org/bugzilla/attachment.cgi?id=12574
H.J.