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[Bug middle-end/19410] Overlapping memcpy with big struct copies (ACATS c64106a)
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Jan 2005 23:57:05 -0000
- Subject: [Bug middle-end/19410] Overlapping memcpy with big struct copies (ACATS c64106a)
- References: <20050112225244.19410.baldrick@free.fr>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-12 23:57 -------
(In reply to comment #3)
> Subject: Re: Overlapping memcpy with big struct copies (ACATS c64106a)
> > If the source and destination are identical, does it matter if memcpy is
> used? That said, ACATS tests cxa4009 and cxa4020 have overlapping memcpy's
> where the source and destination are not identical (ACATS c95087a is the same
> as c64106a: identical source and destination).
Yes it does matter at least according to the C example. I was just reducing C64106A, the others are
most likely a different problem.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19410