optimization/8049: SSE unaligned vector stores crash with -O0

Ian Ollmann iano@cco.caltech.edu
Thu Oct 10 12:46:00 GMT 2002


The following reply was made to PR optimization/8049; it has been noted by GNATS.

From: Ian Ollmann <iano@cco.caltech.edu>
To: Jan Hubicka <jh@suse.cz>
Cc: hubicka@gcc.gnu.org, <gcc-bugs@gcc.gnu.org>, <gcc-prs@gcc.gnu.org>,
        <gcc-gnats@gcc.gnu.org>
Subject: Re: optimization/8049: SSE unaligned vector stores crash with -O0
Date: Thu, 10 Oct 2002 12:44:08 -0700

 On Thu, 10 Oct 2002, Jan Hubicka wrote:
 
 > This really is load, however it is stored previously as:
 > > 0x80484c9 <MatrixMultiply+177>:	movaps %xmm0,0xffffff68(%ebp)
 
 Why is that a store and this a load?
 
 	0x804888b <MatrixMultiply+1139> 	movaps %xmm0, 0x4 (%esp,1)
 
 
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    Ian Ollmann, Ph.D.       iano@cco.caltech.edu
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