On Wed, Jan 14, 2015 at 3:26 PM, Marc Glisse wrote:
> On Wed, 14 Jan 2015, Richard Biener wrote:
>
>> On Wed, Jan 14, 2015 at 1:45 PM, Marc Glisse wrote:
>>>
>>> On Tue, 13 Jan 2015, Rasmus Villemoes wrote:
>>>
diff --git gcc/match.pd gcc/match.pd
index 81c4ee6..04a0bc4 100644
---
On Wed, 14 Jan 2015, Richard Biener wrote:
On Wed, Jan 14, 2015 at 1:45 PM, Marc Glisse wrote:
On Tue, 13 Jan 2015, Rasmus Villemoes wrote:
diff --git gcc/match.pd gcc/match.pd
index 81c4ee6..04a0bc4 100644
--- gcc/match.pd
+++ gcc/match.pd
@@ -262,6 +262,16 @@ along with GCC; see the file C
On Wed, Jan 14, 2015 at 1:23 PM, Rasmus Villemoes
wrote:
> On Wed, Jan 14 2015, Richard Biener wrote:
>
>> On Tue, Jan 13, 2015 at 11:47 PM, Andrew Pinski wrote:
>>> On Tue, Jan 13, 2015 at 2:41 PM, Rasmus Villemoes
>>> wrote:
[My first attempt at submitting a patch for gcc, so please fo
On Wed, Jan 14, 2015 at 1:45 PM, Marc Glisse wrote:
> On Tue, 13 Jan 2015, Rasmus Villemoes wrote:
>
>> diff --git gcc/match.pd gcc/match.pd
>> index 81c4ee6..04a0bc4 100644
>> --- gcc/match.pd
>> +++ gcc/match.pd
>> @@ -262,6 +262,16 @@ along with GCC; see the file COPYING3. If not see
>> (abs
On Tue, 13 Jan 2015, Rasmus Villemoes wrote:
diff --git gcc/match.pd gcc/match.pd
index 81c4ee6..04a0bc4 100644
--- gcc/match.pd
+++ gcc/match.pd
@@ -262,6 +262,16 @@ along with GCC; see the file COPYING3. If not see
(abs tree_expr_nonnegative_p@0)
@0)
+/* x + (x & 1) -> (x + 1) & ~1 */
+(si
On Wed, Jan 14 2015, Richard Biener wrote:
> On Tue, Jan 13, 2015 at 11:47 PM, Andrew Pinski wrote:
>> On Tue, Jan 13, 2015 at 2:41 PM, Rasmus Villemoes
>> wrote:
>>> [My first attempt at submitting a patch for gcc, so please forgive me
>>> if I'm not following the right protocol.]
>>
>> There
On Tue, Jan 13, 2015 at 11:47 PM, Andrew Pinski wrote:
> On Tue, Jan 13, 2015 at 2:41 PM, Rasmus Villemoes
> wrote:
>> [My first attempt at submitting a patch for gcc, so please forgive me
>> if I'm not following the right protocol.]
>
> There are a few things missing. For one, a testcase or tw
On Tue, Jan 13, 2015 at 2:41 PM, Rasmus Villemoes
wrote:
> [My first attempt at submitting a patch for gcc, so please forgive me
> if I'm not following the right protocol.]
There are a few things missing. For one, a testcase or two for the
added optimizations.
>
> Sometimes rounding a variable
[My first attempt at submitting a patch for gcc, so please forgive me
if I'm not following the right protocol.]
Sometimes rounding a variable to the next even integer is written x += x
& 1. This usually means using an extra register (and hence at least an
extra mov instruction) compared to the equ
