CUDA int4 bitwise operations

I was wondering is there any availab开发者_StackOverflow中文版le bitwise operations for CUDA's vector types like int4/int2? I see lot of aux functions in cutil_math.h, but no any bit (left/right shift) operations, so I could

int4 x;
x <<= 100;

Thank you.

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I believe you have to do the operation element-wise (or define the operator yourself).