[clang] [CIR][AArch64] Upstream vrshrd_n_s64/u64 and vrshr_n_v vector rounding shift right (PR #185992)

[Andrzej Warzyński via cfe-commits]

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@@ -409,301 +407,6 @@ static const ARMVectorIntrinsicInfo AArch64SIMDIntrinsicMap[] = {
     NEONMAP1(vxarq_u64, aarch64_crypto_xar, 0),
 };
 
-// Single-Instruction-Single-Data (SISD) intrinsics.
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banach-space wrote:

@ArfiH ,  have you pushed any new code? `NEONMAP2(vrshr_n_v, ...) `and `NEONMAP2(vrshrq_n_v, ...) ` are still marked as deleted (as well as `AArch64SISDIntrinsicMap`).

https://github.com/llvm/llvm-project/pull/185992