On Thu, 24 May 2018, Jeff Law wrote:
+ case LSHIFT_EXPR:
+ if (TREE_CODE (TREE_OPERAND (t, 1)) == INTEGER_CST)
Maybe check INTEGRAL_TYPE_P as well, like you did for PLUS_EXPR? Or was
that also unnecessary for PLUS_EXPR?
While there may be cases where allowing an INTEGRAL_TYPE_P SSA_NA
On 05/01/2018 02:42 AM, Marc Glisse wrote:
> (I am not a reviewer, just commenting)
But your comments are definitely appreciated!
>
> On Fri, 9 Feb 2018, Roger Sayle wrote:
>
>> The following patch implements a number of __builtin_popcount related
>> optimizations.
>> (i) popcount(x) == 0 can be
On 05/01/2018 02:48 AM, Marc Glisse wrote:
> On Mon, 30 Apr 2018, Jeff Law wrote:
>
>> On 02/09/2018 05:42 AM, Roger Sayle wrote:
>>> The following patch implements a number of __builtin_popcount related
>>> optimizations.
>>> (i) popcount(x) == 0 can be simplified to x==0, and popcount(x) != 0 to
On Mon, 30 Apr 2018, Jeff Law wrote:
On 02/09/2018 05:42 AM, Roger Sayle wrote:
The following patch implements a number of __builtin_popcount related
optimizations.
(i) popcount(x) == 0 can be simplified to x==0, and popcount(x) != 0 to
x!=0.
(ii) popcount(x&1) can be simplified to x&1, and for
(I am not a reviewer, just commenting)
On Fri, 9 Feb 2018, Roger Sayle wrote:
The following patch implements a number of __builtin_popcount related
optimizations.
(i) popcount(x) == 0 can be simplified to x==0, and popcount(x) != 0 to
x!=0.
(ii) popcount(x&1) can be simplified to x&1, and for u
On 02/09/2018 05:42 AM, Roger Sayle wrote:
> The following patch implements a number of __builtin_popcount related
> optimizations.
> (i) popcount(x) == 0 can be simplified to x==0, and popcount(x) != 0 to
> x!=0.
> (ii) popcount(x&1) can be simplified to x&1, and for unsigned x,
> popcount(x>>31)
On 02/09/2018 05:42 AM, Roger Sayle wrote:
>
> The following patch implements a number of __builtin_popcount related
> optimizations.
> (i) popcount(x) == 0 can be simplified to x==0, and popcount(x) != 0 to
> x!=0.
> (ii) popcount(x&1) can be simplified to x&1, and for unsigned x,
> popcount(x>>3
The following patch implements a number of __builtin_popcount related
optimizations.
(i) popcount(x) == 0 can be simplified to x==0, and popcount(x) != 0 to
x!=0.
(ii) popcount(x&1) can be simplified to x&1, and for unsigned x,
popcount(x>>31) to x>>31.
(iii) popcount (x&6) + popcount(y&16) can be
