--- Comment #16 from pinskia at gcc dot gnu dot org 2008-12-28 02:48
---
This is still a dup of bug 3506, we don't optimize volatile at all.
*** This bug has been marked as a duplicate of 3506 ***
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pinskia at gcc dot gnu dot org changed:
What|Removed
--- Comment #15 from paulmck at linux dot vnet dot ibm dot com 2007-08-18
22:12 ---
(In reply to comment #13)
> (In reply to comment #11)
> > The main concern on the recent LKML thread appeared to be code size rather
> > than
> > speed.
> One should note this only helps CISC based proc
--- Comment #14 from paulmck at linux dot vnet dot ibm dot com 2007-08-18
22:08 ---
(In reply to comment #7)
> One should note this is actually hard to do without changing the code for 3506
> also.
And of course if the volatile variable in the 3506 example code was an MMIO
register, th
--- Comment #13 from pinskia at gcc dot gnu dot org 2007-08-18 01:25
---
(In reply to comment #11)
> The main concern on the recent LKML thread appeared to be code size rather
> than
> speed.
One should note this only helps CISC based processors, it will not help stuff
like PowerPC any
--- Comment #12 from paulmck at linux dot vnet dot ibm dot com 2007-08-18
01:23 ---
(In reply to comment #9)
> s/debian/Ubuntu/
Please accept my apologies for skipping that step -- I wasn't aware of this.
Should I replicate this bug at Ubuntu, or is this strictly advice for future
bug
--- Comment #11 from paulmck at linux dot vnet dot ibm dot com 2007-08-18
01:21 ---
(In reply to comment #10)
> Actually as I understand it, the expanded version is slightly faster under
> newer x86's anyways as they don't have an extra decode stage.
The main concern on the recent LKML
--- Comment #10 from pinskia at gcc dot gnu dot org 2007-08-18 01:13
---
Actually as I understand it, the expanded version is slightly faster under
newer x86's anyways as they don't have an extra decode stage.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33102
--- Comment #9 from pinskia at gcc dot gnu dot org 2007-08-18 01:12 ---
s/debian/Ubuntu/
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33102
--- Comment #8 from pinskia at gcc dot gnu dot org 2007-08-18 01:11 ---
PS you should have reported this first to debian since you are using their
modified version of GCC.
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
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--- Comment #7 from pinskia at gcc dot gnu dot org 2007-08-18 01:10 ---
One should note this is actually hard to do without changing the code for 3506
also.
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
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