diff --git a/src/compiler/backend/arm64/code-generator-arm64.cc b/src/compiler/backend/arm64/code-generator-arm64.cc
index f215a487dd..ccd77141b4 100644
--- a/src/compiler/backend/arm64/code-generator-arm64.cc
+++ b/src/compiler/backend/arm64/code-generator-arm64.cc
@@ -1792,6 +1792,8 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
       __ Mov(dst, i.InputInt8(1), i.InputSimd128Register(2).V2D(), 0);
       break;
     }
+      SIMD_UNOP_CASE(kArm64F64x2Abs, Fabs, 2D);
+      SIMD_UNOP_CASE(kArm64F64x2Neg, Fneg, 2D);
     case kArm64F32x4Splat: {
       __ Dup(i.OutputSimd128Register().V4S(), i.InputSimd128Register(0).S(), 0);
       break;
diff --git a/src/compiler/backend/arm64/instruction-codes-arm64.h b/src/compiler/backend/arm64/instruction-codes-arm64.h
index 6b1e4a84de..15da0a63d9 100644
--- a/src/compiler/backend/arm64/instruction-codes-arm64.h
+++ b/src/compiler/backend/arm64/instruction-codes-arm64.h
@@ -173,6 +173,8 @@ namespace compiler {
   V(Arm64F64x2Splat)                        \
   V(Arm64F64x2ExtractLane)                  \
   V(Arm64F64x2ReplaceLane)                  \
+  V(Arm64F64x2Abs)                          \
+  V(Arm64F64x2Neg)                          \
   V(Arm64F32x4Splat)                        \
   V(Arm64F32x4ExtractLane)                  \
   V(Arm64F32x4ReplaceLane)                  \
diff --git a/src/compiler/backend/arm64/instruction-scheduler-arm64.cc b/src/compiler/backend/arm64/instruction-scheduler-arm64.cc
index 0f67e6a4de..3655ce74ae 100644
--- a/src/compiler/backend/arm64/instruction-scheduler-arm64.cc
+++ b/src/compiler/backend/arm64/instruction-scheduler-arm64.cc
@@ -140,6 +140,8 @@ int InstructionScheduler::GetTargetInstructionFlags(
     case kArm64F64x2Splat:
     case kArm64F64x2ExtractLane:
     case kArm64F64x2ReplaceLane:
+    case kArm64F64x2Abs:
+    case kArm64F64x2Neg:
     case kArm64F32x4Splat:
     case kArm64F32x4ExtractLane:
     case kArm64F32x4ReplaceLane:
diff --git a/src/compiler/backend/arm64/instruction-selector-arm64.cc b/src/compiler/backend/arm64/instruction-selector-arm64.cc
index c528a65bcb..903a44429c 100644
--- a/src/compiler/backend/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/backend/arm64/instruction-selector-arm64.cc
@@ -3055,6 +3055,8 @@ void InstructionSelector::VisitInt64AbsWithOverflow(Node* node) {
   V(I8x16)
 
 #define SIMD_UNOP_LIST(V)                                 \
+  V(F64x2Abs, kArm64F64x2Abs)                             \
+  V(F64x2Neg, kArm64F64x2Neg)                             \
   V(F32x4SConvertI32x4, kArm64F32x4SConvertI32x4)         \
   V(F32x4UConvertI32x4, kArm64F32x4UConvertI32x4)         \
   V(F32x4Abs, kArm64F32x4Abs)                             \
diff --git a/src/compiler/backend/instruction-selector.cc b/src/compiler/backend/instruction-selector.cc
index d8260059f1..d99837aa8b 100644
--- a/src/compiler/backend/instruction-selector.cc
+++ b/src/compiler/backend/instruction-selector.cc
@@ -2600,8 +2600,6 @@ void InstructionSelector::VisitWord64AtomicCompareExchange(Node* node) {
         // !V8_TARGET_ARCH_MIPS64 && !V8_TARGET_ARCH_S390
 
 #if !V8_TARGET_ARCH_X64
-void InstructionSelector::VisitF64x2Abs(Node* node) { UNIMPLEMENTED(); }
-void InstructionSelector::VisitF64x2Neg(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitF64x2Add(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitF64x2Sub(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitF64x2Mul(Node* node) { UNIMPLEMENTED(); }
@@ -2616,6 +2614,8 @@ void InstructionSelector::VisitF64x2Le(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitF64x2Splat(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitF64x2ExtractLane(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitF64x2ReplaceLane(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitF64x2Abs(Node* node) { UNIMPLEMENTED(); }
+void InstructionSelector::VisitF64x2Neg(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitI64x2Splat(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitI64x2ExtractLane(Node* node) { UNIMPLEMENTED(); }
 void InstructionSelector::VisitI64x2ReplaceLane(Node* node) { UNIMPLEMENTED(); }
diff --git a/test/cctest/wasm/test-run-wasm-simd.cc b/test/cctest/wasm/test-run-wasm-simd.cc
index 53c33768eb..b1bbc109ea 100644
--- a/test/cctest/wasm/test-run-wasm-simd.cc
+++ b/test/cctest/wasm/test-run-wasm-simd.cc
@@ -988,62 +988,6 @@ WASM_SIMD_TEST_NO_LOWERING(F64x2ReplaceLane) {
     CHECK_EQ(static_cast<double>(i), ReadLittleEndianValue<double>(&g[i]));
   }
 }
-#endif  // V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_ARM64
-
-#if V8_TARGET_ARCH_X64
-void RunF64x2CompareOpTest(ExecutionTier execution_tier, LowerSimd lower_simd,
-                           WasmOpcode opcode, DoubleCompareOp expected_op) {
-  WasmRunner<int32_t, double, double> r(execution_tier, lower_simd);
-  // Set up global to hold mask output.
-  int64_t* g = r.builder().AddGlobal<int64_t>(kWasmS128);
-  // Build fn to splat test values, perform compare op, and write the result.
-  byte value1 = 0, value2 = 1;
-  byte temp1 = r.AllocateLocal(kWasmS128);
-  byte temp2 = r.AllocateLocal(kWasmS128);
-  BUILD(r, WASM_SET_LOCAL(temp1, WASM_SIMD_F64x2_SPLAT(WASM_GET_LOCAL(value1))),
-        WASM_SET_LOCAL(temp2, WASM_SIMD_F64x2_SPLAT(WASM_GET_LOCAL(value2))),
-        WASM_SET_GLOBAL(0, WASM_SIMD_BINOP(opcode, WASM_GET_LOCAL(temp1),
-                                           WASM_GET_LOCAL(temp2))),
-        WASM_ONE);
-
-  FOR_FLOAT64_INPUTS(x) {
-    if (!PlatformCanRepresent(x)) continue;
-    FOR_FLOAT64_INPUTS(y) {
-      if (!PlatformCanRepresent(y)) continue;
-      double diff = x - y;  // Model comparison as subtraction.
-      if (!PlatformCanRepresent(diff)) continue;
-      r.Call(x, y);
-      int64_t expected = expected_op(x, y);
-      for (int i = 0; i < 2; i++) {
-        CHECK_EQ(expected, ReadLittleEndianValue<int64_t>(&g[i]));
-      }
-    }
-  }
-}
-
-WASM_SIMD_TEST_NO_LOWERING(F64x2Eq) {
-  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Eq, Equal);
-}
-
-WASM_SIMD_TEST_NO_LOWERING(F64x2Ne) {
-  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Ne, NotEqual);
-}
-
-WASM_SIMD_TEST_NO_LOWERING(F64x2Gt) {
-  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Gt, Greater);
-}
-
-WASM_SIMD_TEST_NO_LOWERING(F64x2Ge) {
-  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Ge, GreaterEqual);
-}
-
-WASM_SIMD_TEST_NO_LOWERING(F64x2Lt) {
-  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Lt, Less);
-}
-
-WASM_SIMD_TEST_NO_LOWERING(F64x2Le) {
-  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Le, LessEqual);
-}
 
 bool IsExtreme(double x) {
   double abs_x = std::fabs(x);
@@ -1166,6 +1110,62 @@ WASM_SIMD_TEST_NO_LOWERING(F64x2Abs) {
 WASM_SIMD_TEST_NO_LOWERING(F64x2Neg) {
   RunF64x2UnOpTest(execution_tier, lower_simd, kExprF64x2Neg, Negate);
 }
+#endif  // V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_ARM64
+
+#if V8_TARGET_ARCH_X64
+void RunF64x2CompareOpTest(ExecutionTier execution_tier, LowerSimd lower_simd,
+                           WasmOpcode opcode, DoubleCompareOp expected_op) {
+  WasmRunner<int32_t, double, double> r(execution_tier, lower_simd);
+  // Set up global to hold mask output.
+  int64_t* g = r.builder().AddGlobal<int64_t>(kWasmS128);
+  // Build fn to splat test values, perform compare op, and write the result.
+  byte value1 = 0, value2 = 1;
+  byte temp1 = r.AllocateLocal(kWasmS128);
+  byte temp2 = r.AllocateLocal(kWasmS128);
+  BUILD(r, WASM_SET_LOCAL(temp1, WASM_SIMD_F64x2_SPLAT(WASM_GET_LOCAL(value1))),
+        WASM_SET_LOCAL(temp2, WASM_SIMD_F64x2_SPLAT(WASM_GET_LOCAL(value2))),
+        WASM_SET_GLOBAL(0, WASM_SIMD_BINOP(opcode, WASM_GET_LOCAL(temp1),
+                                           WASM_GET_LOCAL(temp2))),
+        WASM_ONE);
+
+  FOR_FLOAT64_INPUTS(x) {
+    if (!PlatformCanRepresent(x)) continue;
+    FOR_FLOAT64_INPUTS(y) {
+      if (!PlatformCanRepresent(y)) continue;
+      double diff = x - y;  // Model comparison as subtraction.
+      if (!PlatformCanRepresent(diff)) continue;
+      r.Call(x, y);
+      int64_t expected = expected_op(x, y);
+      for (int i = 0; i < 2; i++) {
+        CHECK_EQ(expected, ReadLittleEndianValue<int64_t>(&g[i]));
+      }
+    }
+  }
+}
+
+WASM_SIMD_TEST_NO_LOWERING(F64x2Eq) {
+  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Eq, Equal);
+}
+
+WASM_SIMD_TEST_NO_LOWERING(F64x2Ne) {
+  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Ne, NotEqual);
+}
+
+WASM_SIMD_TEST_NO_LOWERING(F64x2Gt) {
+  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Gt, Greater);
+}
+
+WASM_SIMD_TEST_NO_LOWERING(F64x2Ge) {
+  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Ge, GreaterEqual);
+}
+
+WASM_SIMD_TEST_NO_LOWERING(F64x2Lt) {
+  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Lt, Less);
+}
+
+WASM_SIMD_TEST_NO_LOWERING(F64x2Le) {
+  RunF64x2CompareOpTest(execution_tier, lower_simd, kExprF64x2Le, LessEqual);
+}
 
 void RunF64x2BinOpTest(ExecutionTier execution_tier, LowerSimd lower_simd,
                        WasmOpcode opcode, DoubleBinOp expected_op) {