On 27 March 2013 10:05, Richard Biener wrote:
> On Tue, Mar 26, 2013 at 6:30 PM, Frederic Riss
> wrote:
>> Here, the code trying to expand a signed by unsigned widening multiply
>> explicitly checks that the operand isn't a constant. Why is that? I
>> removed that condition to try to find the fa
On Tue, Mar 26, 2013 at 6:30 PM, Frederic Riss wrote:
> I was playing with adding support of the various modes of widening
> multiplies on my backend, and hit some restrictions in the expansion
> code that I couldn't explain to myself. These restrictions only impact
> the signed by unsigned versio
I was playing with adding support of the various modes of widening
multiplies on my backend, and hit some restrictions in the expansion
code that I couldn't explain to myself. These restrictions only impact
the signed by unsigned version.
The first limitation was about the detection of widening mu
