tcg/optimize: Don't fold INDEX_op_and_vec to extract

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Merge tag 'pull-tcg-20250721' of https://gitlab.com/rth7680/qemu into staging

tcg/optimize: Don't fold INDEX_op_and_vec to extract

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* tag 'pull-tcg-20250721' of https://gitlab.com/rth7680/qemu:
  tcg/optimize: Don't fold INDEX_op_and_vec to extract

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

tcg/optimize.c

@@ -1454,7 +1454,7 @@ static bool fold_and(OptContext *ctx, TCGOp *op)
     a_mask = t1->z_mask & ~t2->o_mask;
 
     if (!fold_masks_zosa_int(ctx, op, z_mask, o_mask, s_mask, a_mask)) {
-        if (ti_is_const(t2)) {
+        if (op->opc == INDEX_op_and && ti_is_const(t2)) {
             /*
              * Canonicalize on extract, if valid.  This aids x86 with its
              * 2 operand MOVZBL and 2 operand AND, selecting the TCGOpcode