On Sunday 04 November 2007, Mark Mitchell wrote:
> Kenneth Zadeck wrote:
> > To fix this will require a round of copy propagation, most likely in
> > concert with some induction variable detection, since the most
> > profitable place for this will be in loops.
>
> For code size, it will be profitab
Kenneth Zadeck wrote:
> To fix this will require a round of copy propagation, most likely in
> concert with some induction variable detection, since the most
> profitable place for this will be in loops.
For code size, it will be profitable everywhere. On ARM, aggressive use
of post-increment
On 11/3/07, Richard Guenther <[EMAIL PROTECTED]> wrote:
> On 11/3/07, Zdenek Dvorak <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > > >> I believe that this is something new and is most likely fallout from
> > > >> diego's reworking of the tree to rtl converter.
> > > >>
> > > >> To fix this will requir
On 11/3/07, Zdenek Dvorak <[EMAIL PROTECTED]> wrote:
> Hi,
>
> > >> I believe that this is something new and is most likely fallout from
> > >> diego's reworking of the tree to rtl converter.
> > >>
> > >> To fix this will require a round of copy propagation, most likely in
> > >> concert with some
] [mailto:[EMAIL PROTECTED] On Behalf Of
Zdenek Dvorak
Sent: 03 November 2007 15:27
To: Kenneth Zadeck
Cc: gcc@gcc.gnu.org
Subject: Re: Tree-SSA and POST_INC address mode inompatible in GCC4?
Hi,
> >> I believe that this is something new and is most likely fallout
from
> >> diego&
Hi,
> >> I believe that this is something new and is most likely fallout from
> >> diego's reworking of the tree to rtl converter.
> >>
> >> To fix this will require a round of copy propagation, most likely in
> >> concert with some induction variable detection, since the most
> >> profitable plac
2007/11/3, Kenneth Zadeck <[EMAIL PROTECTED]> wrote:
> J.C. Pizarro wrote:
> > They need to add an algorithm post-SSA that the code reuse the variables
> > converting a_j <- phi(a_i,...) to a_k <- phi(a_k,...).
> >
> > The algorithms of POST_INC and POST_DEC are very specific, so an above
> > gener
2007/11/3, J.C. Pizarro <[EMAIL PROTECTED]> wrote:
> They need to add an algorithm post-SSA that the code reuse the variables
> converting a_j <- phi(a_i,...) to a_k <- phi(a_k,...).
I'm sorry, "a_k <- phi(a_k,...)" is invalid due to SSA form definition,
but this algorithm need some form to repres
J.C. Pizarro wrote:
> 2007/11/3, Kenneth Zadeck wrote:
>
>> I believe that this is something new and is most likely fallout from
>> diego's reworking of the tree to rtl converter.
>>
>> To fix this will require a round of copy propagation, most likely in
>> concert with some induction variable d
Zdenek Dvorak wrote:
> Hi,
>
>
>> I believe that this is something new and is most likely fallout from
>> diego's reworking of the tree to rtl converter.
>>
>> To fix this will require a round of copy propagation, most likely in
>> concert with some induction variable detection, since the most
>
2007/11/3, Kenneth Zadeck wrote:
> I believe that this is something new and is most likely fallout from
> diego's reworking of the tree to rtl converter.
>
> To fix this will require a round of copy propagation, most likely in
> concert with some induction variable detection, since the most
> profi
Hi,
> I believe that this is something new and is most likely fallout from
> diego's reworking of the tree to rtl converter.
>
> To fix this will require a round of copy propagation, most likely in
> concert with some induction variable detection, since the most
> profitable place for this will b
I believe that this is something new and is most likely fallout from
diego's reworking of the tree to rtl converter.
To fix this will require a round of copy propagation, most likely in
concert with some induction variable detection, since the most
profitable place for this will be in loops.
I
adhakrishnan [mailto:[EMAIL PROTECTED]
Sent: 02 November 2007 12:39
To: Bingfeng Mei
Cc: gcc@gcc.gnu.org
Subject: Re: Tree-SSA and POST_INC address mode inompatible in GCC4?
Hi Bingfeng,
On 11/2/07, Bingfeng Mei <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I look at the following the code to
Hi Bingfeng,
On 11/2/07, Bingfeng Mei <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I look at the following the code to see what is the difference between
> GCC4 and GCC3 in using POST_INC address mode (or other similar modes).
>
> void tst(char * __restrict__ a, char * __restrict__ b){
> *a++ = *b++
Hello,
I look at the following the code to see what is the difference between
GCC4 and GCC3 in using POST_INC address mode (or other similar modes).
void tst(char * __restrict__ a, char * __restrict__ b){
*a++ = *b++;
*a++ = *b++;
*a++ = *b++;
*a++ = *b++;
*a++ = *b++;
*a++ = *b++;
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