riscv64: Implement Integer Narrowing SIMD Instructions #6601
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afonso360
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Had to cancel CI and re-run it since the arm64 job was stuck for the last 4h30. |
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👋 Hey,
This PR implements some of the integer narrowing instructions (
{s,u,uu}narrow). We don't have an exact native instruction for this, so the general strategy is to narrow each input individually and then merge them together.