SVE Instruction List by Dougall Johnson
SQNEG: Signed saturating negate
SQNEG Zd.D, Pg/Z, Zn.D (SVE2.2 (SME2.2
128-bit SVE

For each 64-bit integer set (2) to −(1), with signed saturation to 0x7FFFFFFFFFFFFFFF for the input −0x8000000000000000.
256-bit SVE

For each 64-bit integer set (2) to −(1), with signed saturation to 0x7FFFFFFFFFFFFFFF for the input −0x8000000000000000.
512-bit SVE

For each 64-bit integer set (2) to −(1), with signed saturation to 0x7FFFFFFFFFFFFFFF for the input −0x8000000000000000.
Larger sizes
1024-bit SVE

For each 64-bit integer set (2) to −(1), with signed saturation to 0x7FFFFFFFFFFFFFFF for the input −0x8000000000000000.
2048-bit SVE

For each 64-bit integer set (2) to −(1), with signed saturation to 0x7FFFFFFFFFFFFFFF for the input −0x8000000000000000.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.