diff --git a/tccgen.c b/tccgen.c
index b056c1e..3508e84 100644
--- a/tccgen.c
+++ b/tccgen.c
@@ -1197,6 +1197,7 @@ static int reg_fret(int t)
     return REG_FRET;
 }
 
+#if !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_X86_64)
 /* expand 64bit on stack in two ints */
 static void lexpand(void)
 {
@@ -1217,6 +1218,7 @@ static void lexpand(void)
     }
     vtop[0].type.t = vtop[-1].type.t = VT_INT | u;
 }
+#endif
 
 #ifdef TCC_TARGET_ARM
 /* expand long long on stack */
@@ -2370,6 +2372,7 @@ static void gen_cast(CType *type)
                     tcc_warning("nonportable conversion from pointer to char/short");
                 }
                 force_charshort_cast(dbt);
+#if !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_X86_64)
             } else if ((dbt & VT_BTYPE) == VT_INT) {
                 /* scalar to int */
                 if ((sbt & VT_BTYPE) == VT_LLONG) {
@@ -2380,6 +2383,7 @@ static void gen_cast(CType *type)
                 /* if lvalue and single word type, nothing to do because
                    the lvalue already contains the real type size (see
                    VT_LVAL_xxx constants) */
+#endif
             }
         }
     } else if ((dbt & VT_BTYPE) == VT_PTR && !(vtop->r & VT_LVAL)) {