target/i386: use local X86DecodedOp in gen_POP()

This will make subsequent changes a little easier to read.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-ID: <20240606095319.229650-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index f90f3d3..ca78504 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -2575,11 +2575,13 @@
 
 static void gen_POP(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
+    X86DecodedOp *op = &decode->op[0];
     MemOp ot = gen_pop_T0(s);
-    if (decode->op[0].has_ea) {
+
+    if (op->has_ea) {
         /* NOTE: order is important for MMU exceptions */
         gen_op_st_v(s, ot, s->T0, s->A0);
-        decode->op[0].unit = X86_OP_SKIP;
+        op->unit = X86_OP_SKIP;
     }
     /* NOTE: writing back registers after update is important for pop %sp */
     gen_pop_update(s, ot);