[PATCH] libstdc++: Replace use of incorrect non-temporal store

[Matthias Kretz]

OK for master and backports?

Tested on x86_64-pc-linux-gnu

----- >8 -----

The call to the base implementation sometimes didn't find a matching
signature because the _Abi parameter of _SimdImpl* was "wrong" after
conversion. It has to call into <new ABI tag>::_SimdImpl instead of the
current ABI tag's _SimdImpl. This also reduces the number of possible
template instantiations.

Signed-off-by: Matthias Kretz <m.kretz@gsi.de>

libstdc++-v3/ChangeLog:

	PR libstdc++/110054
	* include/experimental/bits/simd_builtin.h (_S_masked_store):
	Call into deduced ABI's SimdImpl after conversion.
	* include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
	Don't use _mm_maskmoveu_si128. Use the generic fall-back
	implementation. Also fix masked stores without SSE2, which
	were not doing anything before.
---
 .../include/experimental/bits/simd_builtin.h  |  6 +--
 .../include/experimental/bits/simd_x86.h      | 38 ++-----------------
 2 files changed, 7 insertions(+), 37 deletions(-)


--
──────────────────────────────────────────────────────────────────────────
 Dr. Matthias Kretz                           https://mattkretz.github.io
 GSI Helmholtz Centre for Heavy Ion Research               https://gsi.de
 stdₓ::simd
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