Gcc vector extensions

[Hari Sandanagobalane <hariharans@xxxxxxxxxxxx>]

Hello,
Picochip processor has a vector unit that supports operations such as

ADD imm,vsrc,vdest.

where you can add a scalar value to a vector register. This is 
equivalent to adding every element of the vector register with the 
scalar value.

GCC vector extensions allow for a scalar to be used for shift 
operations. This example from documentation says

     typedef int v4si __attribute__ ((vector_size (16)));

     v4si a, b;

     b = a >> 1;     /* b = a >> {1,1,1,1}; */

Is it possible to support

b = a + 1 /* b = a + {1,1,1,1} */

Or, is there any other way to represent this operation?

Thanks for your help.

Cheers
Hari

Note: I am not sure whether this is the right mailing list for this 
discussion.