aboutsummaryrefslogtreecommitdiff
path: root/target/arm/translate-sve.c
diff options
context:
space:
mode:
authorRichard Henderson <richard.henderson@linaro.org>2018-06-29 15:11:04 +0100
committerPeter Maydell <peter.maydell@linaro.org>2018-06-29 15:11:04 +0100
commit7f9ddf64d5fe5bfaa91ae0ec52217d86f4d86452 (patch)
treec37b17ffdd07949605b8b3fad8d1c38e0b5c1d30 /target/arm/translate-sve.c
parent6ceabaad1101b0b33490b0fd4bed5b6445b0a34e (diff)
target/arm: Implement SVE Floating Point Accumulating Reduction Group
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180627043328.11531-9-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.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 369ce98dc6..ceb46895e0 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -3384,6 +3384,51 @@ DO_ZZI(UMIN, umin)
#undef DO_ZZI
/*
+ *** SVE Floating Point Accumulating Reduction Group
+ */
+
+static bool trans_FADDA(DisasContext *s, arg_rprr_esz *a, uint32_t insn)
+{
+ typedef void fadda_fn(TCGv_i64, TCGv_i64, TCGv_ptr,
+ TCGv_ptr, TCGv_ptr, TCGv_i32);
+ static fadda_fn * const fns[3] = {
+ gen_helper_sve_fadda_h,
+ gen_helper_sve_fadda_s,
+ gen_helper_sve_fadda_d,
+ };
+ unsigned vsz = vec_full_reg_size(s);
+ TCGv_ptr t_rm, t_pg, t_fpst;
+ TCGv_i64 t_val;
+ TCGv_i32 t_desc;
+
+ if (a->esz == 0) {
+ return false;
+ }
+ if (!sve_access_check(s)) {
+ return true;
+ }
+
+ t_val = load_esz(cpu_env, vec_reg_offset(s, a->rn, 0, a->esz), a->esz);
+ t_rm = tcg_temp_new_ptr();
+ t_pg = tcg_temp_new_ptr();
+ tcg_gen_addi_ptr(t_rm, cpu_env, vec_full_reg_offset(s, a->rm));
+ tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->pg));
+ t_fpst = get_fpstatus_ptr(a->esz == MO_16);
+ t_desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
+
+ fns[a->esz - 1](t_val, t_val, t_rm, t_pg, t_fpst, t_desc);
+
+ tcg_temp_free_i32(t_desc);
+ tcg_temp_free_ptr(t_fpst);
+ tcg_temp_free_ptr(t_pg);
+ tcg_temp_free_ptr(t_rm);
+
+ write_fp_dreg(s, a->rd, t_val);
+ tcg_temp_free_i64(t_val);
+ return true;
+}
+
+/*
*** SVE Floating Point Arithmetic - Unpredicated Group
*/