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-rw-r--r--tcg/tcg-op-gvec.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 793d4ba64c..fcc25b04e6 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -1581,7 +1581,7 @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs,
TCGv_vec in = tcg_temp_new_vec(TCG_TYPE_V128);
tcg_gen_ld_vec(in, cpu_env, aofs);
- for (i = 0; i < oprsz; i += 16) {
+ for (i = (aofs == dofs) * 16; i < oprsz; i += 16) {
tcg_gen_st_vec(in, cpu_env, dofs + i);
}
tcg_temp_free_vec(in);
@@ -1591,7 +1591,7 @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs,
tcg_gen_ld_i64(in0, cpu_env, aofs);
tcg_gen_ld_i64(in1, cpu_env, aofs + 8);
- for (i = 0; i < oprsz; i += 16) {
+ for (i = (aofs == dofs) * 16; i < oprsz; i += 16) {
tcg_gen_st_i64(in0, cpu_env, dofs + i);
tcg_gen_st_i64(in1, cpu_env, dofs + i + 8);
}