http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14192
Chris King changed:
What|Removed |Added
CC||colanderman at gmail dot com
--- Comment #14
--- Comment #13 from alexey dot salmin at gmail dot com 2010-04-28 15:53
---
Sorry, but I still don't get it :( Why exactly we can't remove the second load
of "*b"?
void f(int *a, const int *restrict b) {
*a++ = *b + 1;
*a++ = *b + 1;
}
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http://gcc.gnu.org/bugzil
--- Comment #12 from pinskia at gcc dot gnu dot org 2010-04-27 18:08
---
*** Bug 43907 has been marked as a duplicate of this bug. ***
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
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--- Comment #11 from rguenth at gcc dot gnu dot org 2008-10-01 14:28
---
Only two_restrict_pointers is valid. This is a dup of PR14187.
*** This bug has been marked as a duplicate of 14187 ***
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rguenth at gcc dot gnu dot org changed:
What|Removed
--- Comment #10 from pinskia at gcc dot gnu dot org 2007-06-11 00:34
---
> The second case is the following loop:
This is just caused by how we represent pointer addition. I have a fix for
that one, we now get the correct aliasing sets for it.
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pinskia at gcc dot gnu dot org cha
--- Additional Comments From ian at airs dot com 2005-09-28 05:21 ---
We are not waiting for anything in this bug, as far as I can tell.
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What|Removed |Added
--- Additional Comments From joseph at codesourcery dot com 2005-01-23
20:59 ---
Subject: Re: Restrict pointers don't help
On Sun, 23 Jan 2005, steven at gcc dot gnu dot org wrote:
> Zack, Joseph, could one of you comment on Jan's interpretation of
> the semantics of restrict?
--- Additional Comments From steven at gcc dot gnu dot org 2005-01-23
18:51 ---
We should probably have a metabug for restrict. We don't take advantage
of the restrict keyword very well either in some (unfortunately proprierty)
benchmark suites.
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What|Removed
--- Additional Comments From steven at gcc dot gnu dot org 2005-01-23
18:48 ---
Zack, Joseph, could one of you comment on Jan's interpretation of
the semantics of restrict?
This restrict keyword keeps coming back to haunt us, bah.
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What|Removed
--- Additional Comments From giovannibajo at libero dot it 2004-10-11 10:56
---
Zack, do you confirm that the semantics of restrict (in C99 and/or GNU C) allow
us to schedule the load before the store even if there is only one restrict
pointer? Otherwise, this bug report is invalid.
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