This is the single vector version within SVE decode space.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/tcg/translate-sve.c | 22 ++++++++++++++++++++++
 target/arm/tcg/sve.decode      |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
index ff70bf27b0..210a029ab8 100644
--- a/target/arm/tcg/translate-sve.c
+++ b/target/arm/tcg/translate-sve.c
@@ -7428,6 +7428,28 @@ static void gen_uclamp(unsigned vece, uint32_t d, uint32_t n, uint32_t m,
 
 TRANS_FEAT(UCLAMP, aa64_sme_or_sve2p1, gen_gvec_fn_arg_zzzz, gen_uclamp, a)
 
+static bool trans_FCLAMP(DisasContext *s, arg_FCLAMP *a)
+{
+    static gen_helper_gvec_3_ptr * const fn[] = {
+        gen_helper_sme2_bfclamp,
+        gen_helper_sme2_fclamp_h,
+        gen_helper_sme2_fclamp_s,
+        gen_helper_sme2_fclamp_d,
+    };
+
+    /* This insn uses MO_8 to encode BFloat16. */
+    if (a->esz == MO_8
+        ? !dc_isar_feature(aa64_sve_b16b16, s)
+        : !dc_isar_feature(aa64_sme2_or_sve2p1, s)) {
+        return false;
+    }
+
+    /* So far we never optimize rda with MOVPRFX */
+    assert(a->rd == a->ra);
+    return gen_gvec_fpst_zzz(s, fn[a->esz], a->rd, a->rn, a->rm, 1,
+                             a->esz == MO_16 ? FPST_A64_F16 : FPST_A64);
+}
+
 TRANS_FEAT(SQCVTN_sh, aa64_sme2_or_sve2p1, gen_gvec_ool_zz,
            gen_helper_sme2_sqcvtn_sh, a->rd, a->rn, 0)
 TRANS_FEAT(UQCVTN_sh, aa64_sme2_or_sve2p1, gen_gvec_ool_zz,
diff --git a/target/arm/tcg/sve.decode b/target/arm/tcg/sve.decode
index f808362f23..dcfc40ef44 100644
--- a/target/arm/tcg/sve.decode
+++ b/target/arm/tcg/sve.decode
@@ -1721,3 +1721,5 @@ PSEL            00100101 .1 1 000 .. 01 .... 0 .... 0 ....  \
 
 SCLAMP          01000100 .. 0 ..... 110000 ..... .....          @rda_rn_rm
 UCLAMP          01000100 .. 0 ..... 110001 ..... .....          @rda_rn_rm
+
+FCLAMP          01100100 .. 1 ..... 001001 ..... .....          @rda_rn_rm
-- 
2.43.0

On Wed, 2 Jul 2025 at 13:38, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> This is the single vector version within SVE decode space.
>
> Tested-by: Alex Bennée <alex.bennee@linaro.org>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM