diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 816f499e963..cc612ec2ca0 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -2629,6 +2629,15 @@
   [(set_attr "type" "neon_fp_neg_<stype><q>")]
 )
 
+(define_insn "aarch64_fnegv2di2<vczle><vczbe>"
+ [(set (match_operand:V2DI 0 "register_operand" "=w")
+       (unspec:V2DI [(match_operand:V2DI 1 "register_operand" "w")]
+		      UNSPEC_FNEG))]
+ "TARGET_SIMD"
+ "fneg\\t%0.2d, %1.2d"
+  [(set_attr "type" "neon_fp_neg_d")]
+)
+
 (define_insn "abs<mode>2<vczle><vczbe>"
  [(set (match_operand:VHSDF 0 "register_operand" "=w")
        (abs:VHSDF (match_operand:VHSDF 1 "register_operand" "w")))]
diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
index 2ac5a22c848..bfd7bcdef7c 100644
--- a/gcc/config/aarch64/aarch64.cc
+++ b/gcc/config/aarch64/aarch64.cc
@@ -11808,8 +11808,8 @@ aarch64_maybe_generate_simd_constant (rtx target, rtx val, machine_mode mode)
       /* Use the same base type as aarch64_gen_shareable_zero.  */
       rtx zero = CONST0_RTX (V4SImode);
       emit_move_insn (lowpart_subreg (V4SImode, target, mode), zero);
-      rtx neg = lowpart_subreg (V2DFmode, target, mode);
-      emit_insn (gen_negv2df2 (neg, copy_rtx (neg)));
+      rtx neg = lowpart_subreg (V2DImode, target, mode);
+      emit_insn (gen_aarch64_fnegv2di2 (neg, copy_rtx (neg)));
       return true;
     }
 
diff --git a/gcc/config/aarch64/iterators.md b/gcc/config/aarch64/iterators.md
index aaa4afefe2c..20a318e023b 100644
--- a/gcc/config/aarch64/iterators.md
+++ b/gcc/config/aarch64/iterators.md
@@ -689,6 +689,7 @@
     UNSPEC_FMINNMV	; Used in aarch64-simd.md.
     UNSPEC_FMINV	; Used in aarch64-simd.md.
     UNSPEC_FADDV	; Used in aarch64-simd.md.
+    UNSPEC_FNEG		; Used in aarch64-simd.md.
     UNSPEC_ADDV		; Used in aarch64-simd.md.
     UNSPEC_SMAXV	; Used in aarch64-simd.md.
     UNSPEC_SMINV	; Used in aarch64-simd.md.
diff --git a/gcc/testsuite/gcc.target/aarch64/pr116229.c b/gcc/testsuite/gcc.target/aarch64/pr116229.c
new file mode 100644
index 00000000000..cc42078478f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/pr116229.c
@@ -0,0 +1,20 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -fno-signed-zeros" } */
+
+typedef __attribute__((__vector_size__ (8))) unsigned long V;
+
+V __attribute__((__noipa__))
+foo (void)
+{
+  return (V){ 0x8000000000000000 };
+}
+
+V ref = (V){ 0x8000000000000000 };
+
+int
+main ()
+{
+  V v = foo ();
+  if (v[0] != ref[0])
+    __builtin_abort();
+}