target/arm: Move null function and sve check into do_frint_mode

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220527181907.189259-95-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 22 insertions, 28 deletions

diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 2a5fbec2d6..43cfd2818e 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -4140,62 +4140,56 @@ TRANS_FEAT(FRINTX, aa64_sve, gen_gvec_fpst_arg_zpz, frintx_fns[a->esz],
 static bool do_frint_mode(DisasContext *s, arg_rpr_esz *a,
                           int mode, gen_helper_gvec_3_ptr *fn)
 {
-    if (sve_access_check(s)) {
-        unsigned vsz = vec_full_reg_size(s);
-        TCGv_i32 tmode = tcg_const_i32(mode);
-        TCGv_ptr status = fpstatus_ptr(a->esz == MO_16 ? FPST_FPCR_F16 : FPST_FPCR);
+    unsigned vsz;
+    TCGv_i32 tmode;
+    TCGv_ptr status;
+
+    if (fn == NULL) {
+        return false;
+    }
+    if (!sve_access_check(s)) {
+        return true;
+    }
 
-        gen_helper_set_rmode(tmode, tmode, status);
+    vsz = vec_full_reg_size(s);
+    tmode = tcg_const_i32(mode);
+    status = fpstatus_ptr(a->esz == MO_16 ? FPST_FPCR_F16 : FPST_FPCR);
 
-        tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, a->rd),
-                           vec_full_reg_offset(s, a->rn),
-                           pred_full_reg_offset(s, a->pg),
-                           status, vsz, vsz, 0, fn);
+    gen_helper_set_rmode(tmode, tmode, status);
 
-        gen_helper_set_rmode(tmode, tmode, status);
-        tcg_temp_free_i32(tmode);
-        tcg_temp_free_ptr(status);
-    }
+    tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, a->rd),
+                       vec_full_reg_offset(s, a->rn),
+                       pred_full_reg_offset(s, a->pg),
+                       status, vsz, vsz, 0, fn);
+
+    gen_helper_set_rmode(tmode, tmode, status);
+    tcg_temp_free_i32(tmode);
+    tcg_temp_free_ptr(status);
     return true;
 }
 
 static bool trans_FRINTN(DisasContext *s, arg_rpr_esz *a)
 {
-    if (a->esz == 0) {
-        return false;
-    }
     return do_frint_mode(s, a, float_round_nearest_even, frint_fns[a->esz]);
 }
 
 static bool trans_FRINTP(DisasContext *s, arg_rpr_esz *a)
 {
-    if (a->esz == 0) {
-        return false;
-    }
     return do_frint_mode(s, a, float_round_up, frint_fns[a->esz]);
 }
 
 static bool trans_FRINTM(DisasContext *s, arg_rpr_esz *a)
 {
-    if (a->esz == 0) {
-        return false;
-    }
     return do_frint_mode(s, a, float_round_down, frint_fns[a->esz]);
 }
 
 static bool trans_FRINTZ(DisasContext *s, arg_rpr_esz *a)
 {
-    if (a->esz == 0) {
-        return false;
-    }
     return do_frint_mode(s, a, float_round_to_zero, frint_fns[a->esz]);
 }
 
 static bool trans_FRINTA(DisasContext *s, arg_rpr_esz *a)
 {
-    if (a->esz == 0) {
-        return false;
-    }
     return do_frint_mode(s, a, float_round_ties_away, frint_fns[a->esz]);
 }