On Tue, 7 May 2024 at 14:42, Matthias Kretz <m.kr...@gsi.de> wrote: > > Tested on x86_64-linux-gnu and aarch64-linux-gnu and with Clang 18 on x86_64- > linux-gnu. > > OK for trunk and backport(s)?
OK for all. > > ---------------------- 8< ---------------------------- > > Signed-off-by: Matthias Kretz <m.kr...@gsi.de> > > libstdc++-v3/ChangeLog: > > PR libstdc++/114958 > * include/experimental/bits/simd.h (__as_vector): Return scalar > simd as one-element vector. Return vector from single-vector > fixed_size simd. > (__vec_shuffle): New. > (__extract_part): Adjust return type signature. > (split): Use __extract_part for any split into non-fixed_size > simds. > (concat): If the return type stores a single vector, use > __vec_shuffle (which calls __builtin_shufflevector) to produce > the return value. > * include/experimental/bits/simd_builtin.h > (__shift_elements_right): Removed. > (__extract_part): Return single elements directly. Use > __vec_shuffle (which calls __builtin_shufflevector) to for all > non-trivial cases. > * include/experimental/bits/simd_fixed_size.h (__extract_part): > Return single elements directly. > * testsuite/experimental/simd/pr114958.cc: New test. > --- > libstdc++-v3/include/experimental/bits/simd.h | 161 +++++++++++++----- > .../include/experimental/bits/simd_builtin.h | 152 +---------------- > .../experimental/bits/simd_fixed_size.h | 4 +- > .../testsuite/experimental/simd/pr114958.cc | 20 +++ > 4 files changed, 145 insertions(+), 192 deletions(-) > create mode 100644 libstdc++-v3/testsuite/experimental/simd/pr114958.cc > > > -- > ────────────────────────────────────────────────────────────────────────── > Dr. Matthias Kretz https://mattkretz.github.io > GSI Helmholtz Centre for Heavy Ion Research https://gsi.de > stdₓ::simd > ──────────────────────────────────────────────────────────────────────────
