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What|Removed |Added
Target Milestone|--- |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18880
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-26
22:21 ---
Fixed.
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What|Removed |Added
Status|NEW |RESOLVED
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-17
23:55 ---
*** Bug 13796 has been marked as a duplicate of this bug. ***
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18880
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-17
23:52 ---
*** Bug 13799 has been marked as a duplicate of this bug. ***
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What|Removed |Added
--- Additional Comments From steven at gcc dot gnu dot org 2005-04-13
23:50 ---
I am no longer interested in working on this DSE pass.
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What|Removed |Added
--- Additional Comments From giovannibajo at libero dot it 2005-04-13
23:49 ---
Steven, what about posting your patch for review?
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What|Removed |Added
CC|
--- Additional Comments From steven at gcc dot gnu dot org 2005-02-01
00:23 ---
Let's just leave it as-is and revisit for 4.1.
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What|Removed |Added
AssignedTo|ste
--- Additional Comments From law at redhat dot com 2005-01-19 16:22 ---
Subject: Re: DSE is not doing its job for
global variables
On Wed, 2005-01-19 at 09:12 +, stevenb at novell dot com wrote:
> --- Additional Comments From stevenb at novell dot com 2005-01-19 09:12
--- Additional Comments From stevenb at novell dot com 2005-01-19 09:12
---
Subject: Re: DSE is not doing its job for global variables
Do you happen to have numbers on how many dead stores the RTL dead
store elimination (in flow.c, right) catches?
--
http://gcc.gnu.org/bugzilla/
--- Additional Comments From law at redhat dot com 2005-01-19 06:46 ---
Subject: Re: DSE is not doing its job for
global variables
On Wed, 2005-01-19 at 02:44 +, dje at gcc dot gnu dot org wrote:
> --- Additional Comments From dje at gcc dot gnu dot org 2005-01-19 02:44
--- Additional Comments From dje at gcc dot gnu dot org 2005-01-19 02:44
---
Steven's experiments seem to demonstrate that the current DSE implementation is
not very effective. GCC 4.0 includes RTL optimizations that will catch most if
not all of these cases, so it is not as if this wil
--- Additional Comments From law at redhat dot com 2005-01-19 01:43 ---
Subject: Re: DSE is not doing its job for
global variables
On Wed, 2005-01-19 at 01:34 +, steven at gcc dot gnu dot org wrote:
> --- Additional Comments From steven at gcc dot gnu dot org 2005-01-19
--- Additional Comments From steven at gcc dot gnu dot org 2005-01-19
01:34 ---
DSE2 also does almost nothing, so I just went ahead and posted a proposal
to just disable DSE: http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01183.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=1888
--- Additional Comments From law at redhat dot com 2005-01-17 18:33 ---
Subject: Re: DSE is not doing its job for
global variables
On Thu, 2005-01-13 at 20:38 +, steven at gcc dot gnu dot org wrote:
> --- Additional Comments From steven at gcc dot gnu dot org 2005-01-13
--- Additional Comments From steven at gcc dot gnu dot org 2005-01-13
20:38 ---
Hmpf, does DSE do anything *at* *all*???
Test cases:
---
int x;
int
f1 (int i, int j, int k)
{
int *p = k ? &i : &j;
i = 3; /* Dead store. */
*p = 5;
--- Additional Comments From steven at gcc dot gnu dot org 2005-01-12
16:56 ---
I'll have a look at Jeff's patch.
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What|Removed |Added
AssignedTo|unassigned at gc
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-22
15:00 ---
*** Bug 19130 has been marked as a duplicate of this bug. ***
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What|Removed |Added
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-08
20:09 ---
(In reply to comment #5)
> Subject: Re: DSE is not doing its job for
> global variables
> > but I should note that I found this while looking into a benchmark.
> Were you looking at the final outpu
--- Additional Comments From law at redhat dot com 2004-12-08 20:02 ---
Subject: Re: DSE is not doing its job for
global variables
On Wed, 2004-12-08 at 18:03 +, pinskia at gcc dot gnu dot org wrote:
> --- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-08
18:03 ---
Yes I know it is regression only time which is why I filed it and marked it as
an enhancement but I
should note that I found this while looking into a benchmark.
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What|Removed
--- Additional Comments From law at redhat dot com 2004-12-08 17:02 ---
Subject: Re: DSE is not doing its job for
global variables
Note that we're only fixing regressions, and I can't see a way to
classify this as a regression since the RTL DSE code ought to
catch this. This sh
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What|Removed |Added
CC||law at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18880
--- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-08
02:27 ---
Looks like DSE is not following V_MUST_DEF chains (well since really V_MUST_DEF
just became chains I
would assume this was not like not before).
If we use "--param global-var-threshold=0", DSE removes the
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