| commit | 4e3266fb6e40dedf99e25693e02f358de998ae69 | [log] [tgz] |
|---|---|---|
| author | Jim Lin <jim@andestech.com> | Fri Jul 25 11:29:17 2025 +0800 |
| committer | GitHub <noreply@github.com> | Fri Jul 25 11:29:17 2025 +0800 |
| tree | 37f68fca85dc57bcf4f5fe14a01ae38e1c58f1b7 | |
| parent | b0dea47ae613b5d4167058ebef6b91b92dea8488 [diff] |
[RISCV] Implement load/store support for XAndesBFHCvt (#150350) We use `lh` to load 2 bytes from memory into a gpr, then mask this gpr with -65536 to emulate nan-boxing behavior, and then the value in gpr is moved to fpr using `fmv.w.x`. To move the value back from fpr to gpr, we use `fmv.x.w` and finally, `sh` is used to store the lower 2 bytes back to memory. If zfh is enabled at the same time, we can just use flh/fsw to load/store bf16 directly.
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