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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/42681] [4.5 Regression] ICE: in build2_stat, at tree.c:3664 with "-O1 -fgraphite-identity"
Date: Sun, 10 Jan 2010 22:53:00 -0000 [thread overview]
Message-ID: <20100110225329.1749.qmail@sourceware.org> (raw)
In-Reply-To: <bug-42681-14164@http.gcc.gnu.org/bugzilla/>
------- Comment #4 from rguenth at gcc dot gnu dot org 2010-01-10 22:53 -------
The proper thing is to convert the pointer to an appropriate TYPE_PRECISION
signed type, do the arithmetic on it and after it convert it back to the
pointer type.
What does CLAST know about overflow issues here btw? The expression looks
dubious to me (it reads to me as (7*T_6)%8).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42681
next prev parent reply other threads:[~2010-01-10 22:53 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-10 14:11 [Bug tree-optimization/42681] New: " zsojka at seznam dot cz
2010-01-10 14:14 ` [Bug tree-optimization/42681] " zsojka at seznam dot cz
2010-01-10 20:52 ` spop at gcc dot gnu dot org
2010-01-10 21:29 ` rguenth at gcc dot gnu dot org
2010-01-10 21:33 ` spop at gcc dot gnu dot org
2010-01-10 22:53 ` rguenth at gcc dot gnu dot org [this message]
2010-01-10 22:56 ` rguenth at gcc dot gnu dot org
2010-01-14 8:15 ` spop at gcc dot gnu dot org
2010-01-14 8:38 ` spop at gcc dot gnu dot org
2010-01-14 8:38 ` spop at gcc dot gnu dot org
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