> Currently, we have to use intrinsics to support such shift. Isn't syntax of > vector > shift intuitive enough to be supported natively? Someone may argue it breaks > the > C language. But vector is a GCC extension anyway. Support for vector > add/sub/etc > already break C syntax. Any thought? Sorry if this issue had been raised in > past.
I see no reason why this could not be added provided that it is 1) adequately documented 2) implemented when not supported in hardware too (tree-ssa-vect-generic.c) 3) possibly implemented for both C and C++. Regarding 2, note that this > V4H tst(V4H a, V4H b){ > return a << b; > } would have to be emulated on all x86 targets prior to SSE5. Another much desired feature would be OpenCL C-style masking and swizzling. Paolo