c8545439b5
Implement vector configuration setting instructions (VSETVLI, VSETIVLI, VSETL). These allow the vector length (vl) and vector type (vtype) CSRs to be configured via a single instruction. Unfortunately each instruction has its own dedicated encoding. In the case of VSETVLI/VSETIVLI, the vector type is specified via a series of special operands, which specify the selected element width (E8, E16, E32, E64), the vector register group multiplier (M1, M2, M4, M8, MF2, MF4, MF8), the vector tail policy (TU, TA) and vector mask policy (MU, MA). Note that the order of these special operands matches non-Go assemblers. Partially based on work by Pengcheng Wang <wangpengcheng.pp@bytedance.com>. Cq-Include-Trybots: luci.golang.try:gotip-linux-riscv64 Change-Id: I431f59c1e048a3e84754f0643a963da473a741fe Reviewed-on: https://go-review.googlesource.com/c/go/+/631936 Reviewed-by: Mark Ryan <markdryan@rivosinc.com> Reviewed-by: Meng Zhuo <mengzhuo1203@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> |
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README.md
The Go Programming Language
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