target/arm: Enforce alignment for aa64 vector LDn/STn (single)

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210419202257.161730-31-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 2a82dbbd6d..95897e63af 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -3815,6 +3815,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
     int index = is_q << 3 | S << 2 | size;
     int xs, total;
     TCGv_i64 clean_addr, tcg_rn, tcg_ebytes;
+    MemOp mop;
 
     if (extract32(insn, 31, 1)) {
         unallocated_encoding(s);
@@ -3876,6 +3877,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
 
     clean_addr = gen_mte_checkN(s, tcg_rn, !is_load, is_postidx || rn != 31,
                                 total);
+    mop = finalize_memop(s, scale);
 
     tcg_ebytes = tcg_const_i64(1 << scale);
     for (xs = 0; xs < selem; xs++) {
@@ -3883,8 +3885,7 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
             /* Load and replicate to all elements */
             TCGv_i64 tcg_tmp = tcg_temp_new_i64();
 
-            tcg_gen_qemu_ld_i64(tcg_tmp, clean_addr,
-                                get_mem_index(s), s->be_data + scale);
+            tcg_gen_qemu_ld_i64(tcg_tmp, clean_addr, get_mem_index(s), mop);
             tcg_gen_gvec_dup_i64(scale, vec_full_reg_offset(s, rt),
                                  (is_q + 1) * 8, vec_full_reg_size(s),
                                  tcg_tmp);
@@ -3892,9 +3893,9 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
         } else {
             /* Load/store one element per register */
             if (is_load) {
-                do_vec_ld(s, rt, index, clean_addr, scale | s->be_data);
+                do_vec_ld(s, rt, index, clean_addr, mop);
             } else {
-                do_vec_st(s, rt, index, clean_addr, scale | s->be_data);
+                do_vec_st(s, rt, index, clean_addr, mop);
             }
         }
         tcg_gen_add_i64(clean_addr, clean_addr, tcg_ebytes);