rs6000, Add test 128-bit shifts for just the int128 type.
This patch also renames and moves the VSX_TI iterator from vsx.md to
VEC_TI in vector.md. The uses of VEC_TI are also updated.
2021-04-29 Carl Love <cel@us.ibm.com>
gcc/ChangeLog
* config/rs6000/altivec.md (altivec_vslq, altivec_vsrq):
Rename to altivec_vslq_<mode>, altivec_vsrq_<mode>, mode VEC_TI.
* config/rs6000/vector.md (VEC_TI): Was named VSX_TI in vsx.md.
(vashlv1ti3): Change to vashl<mode>3, mode VEC_TI.
(vlshrv1ti3): Change to vlshr<mode>3, mode VEC_TI.
* config/rs6000/vsx.md (VSX_TI): Remove define_mode_iterator. Update
uses of VSX_TI to VEC_TI.
gcc/testsuite/ChangeLog
* gcc.target/powerpc/int_128bit-runnable.c: Add shift_right, shift_left
tests.