SVE Instruction List by Dougall Johnson
See "DUP (scalar)" in the exploration tools

DUP (scalar): Broadcast general-purpose register to vector elements (unpredicated)

DUP Zd.S, Wn (SVE (SME
svfloat32_t svdup[_n]_f32(float32_t op)
svint32_t svdup[_n]_s32(int32_t op)
svuint32_t svdup[_n]_u32(uint32_t op)
svfloat32_t svdup[_n]_f32_x(svbool_t pg, float32_t op)
svint32_t svdup[_n]_s32_x(svbool_t pg, int32_t op)
svuint32_t svdup[_n]_u32_x(svbool_t pg, uint32_t op)

128-bit SVE

Set all 32-bit lanes of (2) to (1).

256-bit SVE

Set all 32-bit lanes of (2) to (1).

512-bit SVE

Set all 32-bit lanes of (2) to (1).

Larger sizes

1024-bit SVE

Set all 32-bit lanes of (2) to (1).

2048-bit SVE

Set all 32-bit lanes of (2) to (1).

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