See "SQSHL (immediate)" in the exploration tools

SQSHL (immediate): Signed saturating shift left by immediate

SQSHL Zdn.D, Pg/M, Zdn.D, #const (SVE2 (SME

svint64_t svqshl[_n_s64]_m(svbool_t pg, svint64_t op1, int64_t op2)

128-bit SVE

For each signed 64-bit integer set (2) to (1) << const, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000 on overflow. The shift amount is limited to 0 ≤ const ≤ 63.

256-bit SVE

For each signed 64-bit integer set (2) to (1) << const, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000 on overflow. The shift amount is limited to 0 ≤ const ≤ 63.

512-bit SVE

For each signed 64-bit integer set (2) to (1) << const, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000 on overflow. The shift amount is limited to 0 ≤ const ≤ 63.

Larger sizes

1024-bit SVE

For each signed 64-bit integer set (2) to (1) << const, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000 on overflow. The shift amount is limited to 0 ≤ const ≤ 63.

2048-bit SVE

For each signed 64-bit integer set (2) to (1) << const, with signed saturation to 0x7FFFFFFFFFFFFFFF or −0x8000000000000000 on overflow. The shift amount is limited to 0 ≤ const ≤ 63.

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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.