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| author | Xueqi Luo <1824368278@qq.com> | 2025-11-27 06:37:04 +0000 |
|---|---|---|
| committer | Meng Zhuo <mengzhuo1203@gmail.com> | 2026-03-26 19:11:49 -0700 |
| commit | 91d1a883768b8b38fe79eefd820063b2b593f23a (patch) | |
| tree | 7bd4d26297825e0580049427093a8cc581cdcd11 /src/cmd/asm | |
| parent | 87fae3622dacca9cfa5026c712df40af694a4e6a (diff) | |
| download | go-91d1a883768b8b38fe79eefd820063b2b593f23a.tar.xz | |
cmd/internal/obj/riscv: add assembly support of Zbc extension
The Zbc extension adds carry-less multiplication instructions for
polynomial arithmetic over GF(2), which is used in cryptographic
algorithms and error-correcting codes. The instructions included
are: clmul, clmulh, and clmulr.
Change-Id: I77a40add1a795c7b90b478dc65835c689e82167a
GitHub-Last-Rev: 53790f0aafa46af2ed24183f58292df7f9fb224a
GitHub-Pull-Request: golang/go#76301
Reviewed-on: https://go-review.googlesource.com/c/go/+/720520
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Diffstat (limited to 'src/cmd/asm')
| -rw-r--r-- | src/cmd/asm/internal/asm/testdata/riscv64.s | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cmd/asm/internal/asm/testdata/riscv64.s b/src/cmd/asm/internal/asm/testdata/riscv64.s index 1b23680e26..94d1476a6d 100644 --- a/src/cmd/asm/internal/asm/testdata/riscv64.s +++ b/src/cmd/asm/internal/asm/testdata/riscv64.s @@ -509,6 +509,14 @@ start: ORCB X5, X6 // 13d37228 REV8 X7, X8 // 13d4836b + // 28.4.3: Carry-less multiplication (Zbc) + CLMUL X5, X6, X7 // b313530a + CLMUL X5, X6 // 3313530a + CLMULH X5, X6, X7 // b333530a + CLMULH X5, X6 // 3333530a + CLMULR X5, X6, X7 // b323530a + CLMULR X5, X6 // 3323530a + // 28.4.4: Single-bit Instructions (Zbs) BCLR X23, X24, X25 // b31c7c49 BCLR $63, X24 // 131cfc4b |