* neon.md (neon_vget_lanev2di): Use gen_lowpart and gen_highpart.
* config/arm/neon.ml (Fixed_return_reg): Renamed to fixed_vector_reg.
All callers changed.
(Fixed_core_reg): New feature.
(Vget_lane [sizes S64 and U64]): Add Fixed_core_reg.  Allow fmrrd in
disassembly.
* neon-testgen.ml: Handle Fixed_core_reg.

* gcc.target/arm/neon/vgetQ_laneu64.c: Regenerated.
* gcc.target/arm/neon/vgetQ_lanes64.c: Likewise.

From-SVN: r185603