On Mon, Mar 16, 2009 at 12:11 PM, Adam Nemet wrote:
> Ramana Radhakrishnan writes:
>> [Resent because of account funnies. Apologies to those who get this twice]
>>
>> Hi,
>>
>> > > This problem is reported every once in a while, all targets with
>> > small
>> > > load-immediate instructions suffer
On Mon, Mar 16, 2009 at 2:52 PM, Ramana Radhakrishnan
wrote:
> Wouldn't doing this in CSE only solve the problem within an extended basic
> block and not necessarily across the program ? Surely you'd want to do it
> globally or am I missing something very basic here ?
Why so serious^Wsurely?
I t
Ramana Radhakrishnan writes:
> [Resent because of account funnies. Apologies to those who get this twice]
>
> Hi,
>
> > > This problem is reported every once in a while, all targets with
> > small
> > > load-immediate instructions suffer from this, especially since GCC
> > 4.0
> > > (i.e. since t
[Resent because of account funnies. Apologies to those who get this twice]
Hi,
> > This problem is reported every once in a while, all targets with
> small
> > load-immediate instructions suffer from this, especially since GCC
> 4.0
> > (i.e. since tree-ssa). But it seems there is just not enoug
Steven Bosscher writes:
> On Sun, Mar 15, 2009 at 11:19 PM, Ramana Radhakrishnan
> wrote:
>> I'm not sure about the best way to fix this but I've filed this for
>> the moment as
>>
>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39468
>
> This problem is reported every once in a while, all targets
On Sun, Mar 15, 2009 at 11:19 PM, Ramana Radhakrishnan
wrote:
> I'm not sure about the best way to fix this but I've filed this for
> the moment as
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39468
This problem is reported every once in a while, all targets with small
load-immediate instructi
Hi Zoltan,
On Fri, Mar 13, 2009 at 9:16 AM, wrote:
> Note that it is sub-optimal on two counts.
>
> First, each loading of a constant takes 3 instructions and 3 clocks.
> Storing the constant and fetching it using an ldr also takes 3 clocks but
> only two 32-bit words and identical constants n
writes:
> Is it a problem that is worth being put onto bugzilla or I just have to do
> some trickery to save the compiler from being smarter than it is?
I think this is worth being put into bugzilla.
Ian