[Bug tree-optimization/64946] For Aarch64, vectorization with "abs" instruction is not hapenning with vector elements of char/short type.

[vekumar at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64946

--- Comment #1 from vekumar at gcc dot gnu.org ---
The test case is got from gcc.target/aarch64/vect-abs-compile.c