Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg-op-gvec-common.h |  4 ++++
 tcg/tcg-op-gvec.c                | 21 +++++++++++++++------
 2 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/include/tcg/tcg-op-gvec-common.h b/include/tcg/tcg-op-gvec-common.h
index 6e8fccad01..cabbe957c8 100644
--- a/include/tcg/tcg-op-gvec-common.h
+++ b/include/tcg/tcg-op-gvec-common.h
@@ -253,6 +253,10 @@ void tcg_gen_gvec_4i(uint32_t dofs, uint32_t aofs, uint32_t bofs, uint32_t cofs,
 
 /* Expand a specific vector operation.  */
 
+void tcg_gen_gvec_mov_var(unsigned vece, TCGv_ptr dbase, uint32_t dofs,
+                          TCGv_ptr abase, uint32_t aofs,
+                          uint32_t oprsz, uint32_t maxsz);
+
 void tcg_gen_gvec_mov(unsigned vece, uint32_t dofs, uint32_t aofs,
                       uint32_t oprsz, uint32_t maxsz);
 void tcg_gen_gvec_not(unsigned vece, uint32_t dofs, uint32_t aofs,
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 3e53e43354..5e58b1cc75 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -1741,8 +1741,9 @@ static void vec_mov2(unsigned vece, TCGv_vec a, TCGv_vec b)
     tcg_gen_mov_vec(a, b);
 }
 
-void tcg_gen_gvec_mov(unsigned vece, uint32_t dofs, uint32_t aofs,
-                      uint32_t oprsz, uint32_t maxsz)
+void tcg_gen_gvec_mov_var(unsigned vece, TCGv_ptr dbase, uint32_t dofs,
+                          TCGv_ptr abase, uint32_t aofs,
+                          uint32_t oprsz, uint32_t maxsz)
 {
     static const GVecGen2 g = {
         .fni8 = tcg_gen_mov_i64,
@@ -1750,14 +1751,22 @@ void tcg_gen_gvec_mov(unsigned vece, uint32_t dofs, uint32_t aofs,
         .fno = gen_helper_gvec_mov,
         .prefer_i64 = TCG_TARGET_REG_BITS == 64,
     };
-    if (dofs != aofs) {
-        tcg_gen_gvec_2(dofs, aofs, oprsz, maxsz, &g);
-    } else {
+
+    if (dofs == aofs && dbase == abase) {
         check_size_align(oprsz, maxsz, dofs);
         if (oprsz < maxsz) {
-            expand_clr(tcg_env, dofs + oprsz, maxsz - oprsz);
+            expand_clr(dbase, dofs + oprsz, maxsz - oprsz);
         }
+        return;
     }
+
+    tcg_gen_gvec_2_var(dbase, dofs, abase, aofs, oprsz, maxsz, &g);
+}
+
+void tcg_gen_gvec_mov(unsigned vece, uint32_t dofs, uint32_t aofs,
+                      uint32_t oprsz, uint32_t maxsz)
+{
+    tcg_gen_gvec_mov_var(vece, tcg_env, dofs, tcg_env, aofs, oprsz, maxsz);
 }
 
 void tcg_gen_gvec_dup_i32(unsigned vece, uint32_t dofs, uint32_t oprsz,
-- 
2.43.0

On Sun, 22 Jun 2025 at 00:53, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  include/tcg/tcg-op-gvec-common.h |  4 ++++
>  tcg/tcg-op-gvec.c                | 21 +++++++++++++++------
>  2 files changed, 19 insertions(+), 6 deletions(-)

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM