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[Bug middle-end/32327] [4.2 Regression] Incorrect stack sharing causing removal of live code
- From: "dnovillo at google dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Jul 2007 11:22:50 -0000
- Subject: [Bug middle-end/32327] [4.2 Regression] Incorrect stack sharing causing removal of live code
- References: <bug-32327-91@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #30 from dnovillo at google dot com 2007-07-04 11:22 -------
Subject: Re: [4.2 Regression] Incorrect stack sharing
causing removal of live code
On 7/3/07 11:28 PM, mmitchel at gcc dot gnu dot org wrote:
> ------- Comment #29 from mmitchel at gcc dot gnu dot org 2007-07-04 03:28 -------
> Diego, does this problem still exist on the 4.2 branch? I see that you checked
> in a patch, which you suggest may not be a complete fix, but does this test
> case still fail?
Yes, the problem still exists on 4.2 and mainline. The patch is valid
in that it fixes a codegen deficiency, but it only works around this
bug. The test case does not fail anymore, and getting another one to
fail may be tricky (it's a fairly rare bug, unfortunately).
A real fix is in the works, but it's not clear when it might be ready.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32327