SVE Instruction List by Dougall Johnson
FCVT: Floating-point convert (predicated)
FCVT Zd.D, Pg/Z, Zn.S (SVE2.2 (SME2.2
128-bit SVE

Convert each 32-bit float from the even lanes of (1) to a 64-bit float, writing the results to the corresponding 64-bit elements of (2).
256-bit SVE

Convert each 32-bit float from the even lanes of (1) to a 64-bit float, writing the results to the corresponding 64-bit elements of (2).
512-bit SVE

Convert each 32-bit float from the even lanes of (1) to a 64-bit float, writing the results to the corresponding 64-bit elements of (2).
Larger sizes
1024-bit SVE

Convert each 32-bit float from the even lanes of (1) to a 64-bit float, writing the results to the corresponding 64-bit elements of (2).
2048-bit SVE

Convert each 32-bit float from the even lanes of (1) to a 64-bit float, writing the results to the corresponding 64-bit elements of (2).
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.