diff --git a/target-arm/helper.h b/target-arm/helper.h
index 8b9adf1311c1cf57bf4ba88775893362628a3b9e..fa3472f0b91ffa6730094fcca109d6610f2d537d 100644
--- a/target-arm/helper.h
+++ b/target-arm/helper.h
@@ -339,7 +339,6 @@ DEF_HELPER_2(neon_mull_s16, i64, i32, i32)
 
 DEF_HELPER_1(neon_negl_u16, i64, i64)
 DEF_HELPER_1(neon_negl_u32, i64, i64)
-DEF_HELPER_1(neon_negl_u64, i64, i64)
 
 DEF_HELPER_2(neon_qabs_s8, i32, env, i32)
 DEF_HELPER_2(neon_qabs_s16, i32, env, i32)
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 9aa920d2ac56fbec02fcccbd1cbaa5b93950bb47..89280b6eeb35d01c677323e909a51ac2389d7b7b 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -1664,12 +1664,6 @@ uint64_t HELPER(neon_negl_u32)(uint64_t x)
     return low | ((uint64_t)high << 32);
 }
 
-/* FIXME:  There should be a native op for this.  */
-uint64_t HELPER(neon_negl_u64)(uint64_t x)
-{
-    return -x;
-}
-
 /* Saturating sign manipulation.  */
 /* ??? Make these use NEON_VOP1 */
 #define DO_QABS8(x) do { \
diff --git a/target-arm/translate.c b/target-arm/translate.c
index daccb15c23af42b911021b13b790d803f7fa58b0..d33f94c0fdb665028c3dbb7f54dbc6423ecdcf08 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -4184,7 +4184,9 @@ static inline void gen_neon_negl(TCGv_i64 var, int size)
     switch (size) {
     case 0: gen_helper_neon_negl_u16(var, var); break;
     case 1: gen_helper_neon_negl_u32(var, var); break;
-    case 2: gen_helper_neon_negl_u64(var, var); break;
+    case 2:
+        tcg_gen_neg_i64(var, var);
+        break;
     default: abort();
     }
 }