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From: Alan Modra <amodra@bigpond.net.au>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: optimization/10252: __builtin_constant_p() returns TRUE for non-constant expression
Date: Fri, 28 Mar 2003 08:46:00 -0000 [thread overview]
Message-ID: <20030328083601.25503.qmail@sources.redhat.com> (raw)
The following reply was made to PR optimization/10252; it has been noted by GNATS.
From: Alan Modra <amodra@bigpond.net.au>
To: davidm@hpl.hp.com
Cc: gcc-gnats@gcc.gnu.org, rth@redhat.com
Subject: Re: optimization/10252: __builtin_constant_p() returns TRUE for non-constant expression
Date: Fri, 28 Mar 2003 19:02:05 +1030
Same thing happens on powerpc64-linux. __bad_stuff will never be
executed, so looks like dead code elimination isn't working properly.
14: 38 00 00 00 li r0,0
18: 2f 80 00 00 cmpwi cr7,r0,0
1c: 40 9e 00 14 bne- cr7,30 <.foo+0x30>
[snip]
30: 48 00 00 01 bl 30 <.foo+0x30>
30: R_PPC64_REL24 .__bad_stuff
--
Alan Modra
IBM OzLabs - Linux Technology Centre
next reply other threads:[~2003-03-28 8:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-28 8:46 Alan Modra [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-03-31 1:16 rth
2003-03-28 7:36 davidm
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