Kenneth Zadeck writes:
>> Changing the representation of unsigned constants is only worthwhile
>> if we can avoid the force_to_size for some unsigned cases. I think we can
>> avoid it for precision >= xprecision && !small_prec. Either we should take
>> the hit of doing that comparison (but see b
On 10/03/2013 10:29 AM, Richard Sandiford wrote:
Kenneth Zadeck writes:
+ /* Got to be careful of precision 0 values. */
+ if (precision)
+len = MIN (len, max_len);
+ if (TYPE_SIGN (TREE_TYPE (x)) == UNSIGNED)
{
- if (precision < HOST_BITS_PER_WIDE_INT
- && TYPE_SIGN
Kenneth Zadeck writes:
> + /* Got to be careful of precision 0 values. */
> + if (precision)
> +len = MIN (len, max_len);
> + if (TYPE_SIGN (TREE_TYPE (x)) == UNSIGNED)
> {
> - if (precision < HOST_BITS_PER_WIDE_INT
> - && TYPE_SIGN (TREE_TYPE (x)) == UNSIGNED)
> + un
Richard and others,
This patch changes the way that unsigned trees are canonicalized. As
with the last patch, I think that this patch is not that much of a step
forward. While it is still true that the signed tree-csts match the
representation of wide-ints, unsigned tree-csts do not and requ
I just committed the patch to do this as revision 202871.
there are two changes from the earlier patch:
1) the addition of frag in loop-doloop.c. This fixes an rtl
canonization bug, but it is unique to the branch. it did not cause a
problem on x86 but did on ppc.
2) the code in rtl.h for c
Richard Biener writes:
> On Tue, 24 Sep 2013, Kenneth Zadeck wrote:
>> On 09/24/2013 09:39 AM, Richard Biener wrote:
>> > On Tue, 17 Sep 2013, Kenneth Zadeck wrote:
>> >
>> > > Richi,
>> > >
>> > > This patch canonizes the bits above the precision for wide ints with
>> > > types
>> > > or
>> >
On 09/24/2013 09:51 AM, Richard Biener wrote:
On Tue, 24 Sep 2013, Kenneth Zadeck wrote:
On 09/24/2013 09:39 AM, Richard Biener wrote:
On Tue, 17 Sep 2013, Kenneth Zadeck wrote:
Richi,
This patch canonizes the bits above the precision for wide ints with types
or
modes that are not a perfect
On 09/24/2013 09:39 AM, Richard Biener wrote:
On Tue, 17 Sep 2013, Kenneth Zadeck wrote:
Richi,
This patch canonizes the bits above the precision for wide ints with types or
modes that are not a perfect multiple of HOST_BITS_PER_WIDE_INT.
I expect that most of the changes in rtl.h will go awa
On Tue, 24 Sep 2013, Kenneth Zadeck wrote:
> On 09/24/2013 09:39 AM, Richard Biener wrote:
> > On Tue, 17 Sep 2013, Kenneth Zadeck wrote:
> >
> > > Richi,
> > >
> > > This patch canonizes the bits above the precision for wide ints with types
> > > or
> > > modes that are not a perfect multiple o
On Tue, 17 Sep 2013, Kenneth Zadeck wrote:
> Richi,
>
> This patch canonizes the bits above the precision for wide ints with types or
> modes that are not a perfect multiple of HOST_BITS_PER_WIDE_INT.
>
> I expect that most of the changes in rtl.h will go away. in particular, when
> we decide
Richi,
This patch canonizes the bits above the precision for wide ints with
types or modes that are not a perfect multiple of HOST_BITS_PER_WIDE_INT.
I expect that most of the changes in rtl.h will go away. in
particular, when we decide that we can depend on richard's patch to
clean up rtl
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