diff options
| author | Joel Sing <joel@sing.id.au> | 2024-11-24 12:39:20 +1100 |
|---|---|---|
| committer | Joel Sing <joel@sing.id.au> | 2025-02-14 07:13:11 -0800 |
| commit | c8545439b596ffc88d09b9f6970fefdf69fcfc5d (patch) | |
| tree | a3ec5f07be452bfc110f9e577d908d47efd740b1 /src/cmd/internal/obj/arm64/a.out.go | |
| parent | b16c04f43993436f24b1e4155a4652193eb1b90c (diff) | |
| download | go-c8545439b596ffc88d09b9f6970fefdf69fcfc5d.tar.xz | |
cmd/asm,cmd/internal/obj/riscv: implement vector configuration setting instructions
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>
Diffstat (limited to 'src/cmd/internal/obj/arm64/a.out.go')
| -rw-r--r-- | src/cmd/internal/obj/arm64/a.out.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cmd/internal/obj/arm64/a.out.go b/src/cmd/internal/obj/arm64/a.out.go index ad00e4842c..de04a24280 100644 --- a/src/cmd/internal/obj/arm64/a.out.go +++ b/src/cmd/internal/obj/arm64/a.out.go @@ -1055,8 +1055,8 @@ type SpecialOperand int const ( // PRFM - SPOP_PLDL1KEEP SpecialOperand = iota // must be the first one - SPOP_BEGIN SpecialOperand = iota - 1 // set as the lower bound + SPOP_PLDL1KEEP SpecialOperand = obj.SpecialOperandARM64Base + iota // must be the first one + SPOP_BEGIN SpecialOperand = obj.SpecialOperandARM64Base + iota - 1 // set as the lower bound SPOP_PLDL1STRM SPOP_PLDL2KEEP SPOP_PLDL2STRM |