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From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/42775] [4.4 regression] GCC fails to rebuild itself with STAGE1_CFLAGS=-O1
Date: Sun, 19 Sep 2010 21:58:00 -0000 [thread overview]
Message-ID: <20100919215830.10976.qmail@sourceware.org> (raw)
In-Reply-To: <bug-42775-7210@http.gcc.gnu.org/bugzilla/>
------- Comment #6 from ebotcazou at gcc dot gnu dot org 2010-09-19 21:58 -------
tree-ssa-operands.c:copy_virtual_operands is miscompiled by delay slot
scheduling so the workaround is to use STAGE1_CFLAGS="-O1 -fno-delayed-branch".
Another way out is probably to configure with --disable-stage1-checking.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42775
next prev parent reply other threads:[~2010-09-19 21:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-17 15:52 [Bug bootstrap/42775] New: sparc-linux 4.4.2 fails to rebuild itself when using STAGE1_CFLAGS=-O1 laurent at guerby dot net
2010-01-17 16:05 ` [Bug target/42775] " rguenth at gcc dot gnu dot org
2010-01-17 19:07 ` armin76 at gentoo dot org
2010-01-18 8:41 ` laurent at guerby dot net
2010-03-21 19:57 ` laurent at guerby dot net
2010-09-19 12:20 ` ebotcazou at gcc dot gnu dot org
2010-09-19 21:58 ` ebotcazou at gcc dot gnu dot org [this message]
2010-09-20 10:31 ` [Bug rtl-optimization/42775] [4.4 regression] GCC fails to rebuild itself with STAGE1_CFLAGS=-O1 ebotcazou at gcc dot gnu dot org
2010-09-20 21:30 ` ebotcazou at gcc dot gnu dot org
2010-09-20 21:31 ` ebotcazou at gcc dot gnu dot org
2010-09-20 21:31 ` ebotcazou at gcc dot gnu dot org
2010-09-20 21:35 ` ebotcazou at gcc dot gnu dot org
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