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author | Richard Henderson | 2021-05-26 00:58:15 +0200 |
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committer | Peter Maydell | 2021-06-03 17:43:26 +0200 |
commit | 458d0ab6830f9bcd76af9df4d1d4db8ab646fcef (patch) | |
tree | ea4e0e9a7403c9a6272b47ebbe3c362a826de362 /target/arm/translate-sve.c | |
parent | target/arm: Implement bfloat widening fma (vector) (diff) | |
download | qemu-458d0ab6830f9bcd76af9df4d1d4db8ab646fcef.tar.gz qemu-458d0ab6830f9bcd76af9df4d1d4db8ab646fcef.tar.xz qemu-458d0ab6830f9bcd76af9df4d1d4db8ab646fcef.zip |
target/arm: Implement bfloat widening fma (indexed)
This is BFMLAL{B,T} for both AArch64 AdvSIMD and SVE,
and VFMA{B,T}.BF16 for AArch32 NEON.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525225817.400336-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/translate-sve.c')
-rw-r--r-- | target/arm/translate-sve.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index ba8f5d7b7d..46210eb696 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -8719,3 +8719,33 @@ static bool trans_BFMLALT_zzzw(DisasContext *s, arg_rrrr_esz *a) { return do_BFMLAL_zzzw(s, a, true); } + +static bool do_BFMLAL_zzxw(DisasContext *s, arg_rrxr_esz *a, bool sel) +{ + if (!dc_isar_feature(aa64_sve_bf16, s)) { + return false; + } + if (sve_access_check(s)) { + TCGv_ptr status = fpstatus_ptr(FPST_FPCR); + unsigned vsz = vec_full_reg_size(s); + + tcg_gen_gvec_4_ptr(vec_full_reg_offset(s, a->rd), + vec_full_reg_offset(s, a->rn), + vec_full_reg_offset(s, a->rm), + vec_full_reg_offset(s, a->ra), + status, vsz, vsz, (a->index << 1) | sel, + gen_helper_gvec_bfmlal_idx); + tcg_temp_free_ptr(status); + } + return true; +} + +static bool trans_BFMLALB_zzxw(DisasContext *s, arg_rrxr_esz *a) +{ + return do_BFMLAL_zzxw(s, a, false); +} + +static bool trans_BFMLALT_zzxw(DisasContext *s, arg_rrxr_esz *a) +{ + return do_BFMLAL_zzxw(s, a, true); +} |