diff --git a/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs b/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs
index f1291c8fbddf..0c703916c136 100644
--- a/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs
+++ b/library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs
@@ -9487,7 +9487,7 @@ pub fn vdivq_f64(a: float64x2_t, b: float64x2_t) -> float64x2_t {
 #[target_feature(enable = "neon,fp16")]
 #[unstable(feature = "stdarch_neon_f16", issue = "136306")]
 #[cfg(not(target_arch = "arm64ec"))]
-#[cfg_attr(test, assert_instr(nop))]
+#[cfg_attr(test, assert_instr(fdiv))]
 pub fn vdivh_f16(a: f16, b: f16) -> f16 {
     a / b
 }
@@ -14829,7 +14829,7 @@ pub fn vmuld_lane_f64<const LANE: i32>(a: f64, b: float64x1_t) -> f64 {
 #[target_feature(enable = "neon,fp16")]
 #[unstable(feature = "stdarch_neon_f16", issue = "136306")]
 #[cfg(not(target_arch = "arm64ec"))]
-#[cfg_attr(test, assert_instr(nop))]
+#[cfg_attr(test, assert_instr(fmul))]
 pub fn vmulh_f16(a: f16, b: f16) -> f16 {
     a * b
 }
@@ -26719,7 +26719,7 @@ pub fn vsubq_f64(a: float64x2_t, b: float64x2_t) -> float64x2_t {
 #[inline]
 #[target_feature(enable = "neon")]
 #[stable(feature = "neon_intrinsics", since = "1.59.0")]
-#[cfg_attr(test, assert_instr(nop))]
+#[cfg_attr(test, assert_instr(sub))]
 pub fn vsubd_s64(a: i64, b: i64) -> i64 {
     a.wrapping_sub(b)
 }
@@ -26728,7 +26728,7 @@ pub fn vsubd_s64(a: i64, b: i64) -> i64 {
 #[inline]
 #[target_feature(enable = "neon")]
 #[stable(feature = "neon_intrinsics", since = "1.59.0")]
-#[cfg_attr(test, assert_instr(nop))]
+#[cfg_attr(test, assert_instr(sub))]
 pub fn vsubd_u64(a: u64, b: u64) -> u64 {
     a.wrapping_sub(b)
 }
@@ -26738,7 +26738,7 @@ pub fn vsubd_u64(a: u64, b: u64) -> u64 {
 #[target_feature(enable = "neon,fp16")]
 #[unstable(feature = "stdarch_neon_f16", issue = "136306")]
 #[cfg(not(target_arch = "arm64ec"))]
-#[cfg_attr(test, assert_instr(nop))]
+#[cfg_attr(test, assert_instr(fsub))]
 pub fn vsubh_f16(a: f16, b: f16) -> f16 {
     a - b
 }
diff --git a/library/stdarch/crates/core_arch/src/arm_shared/neon/generated.rs b/library/stdarch/crates/core_arch/src/arm_shared/neon/generated.rs
index cfd9c201864c..314965cc208f 100644
--- a/library/stdarch/crates/core_arch/src/arm_shared/neon/generated.rs
+++ b/library/stdarch/crates/core_arch/src/arm_shared/neon/generated.rs
@@ -8310,7 +8310,7 @@ pub fn vcreate_p64(a: u64) -> poly64x1_t {
 #[inline]
 #[target_feature(enable = "neon")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v7"))]
-# [cfg_attr (all (test , target_arch = "arm") , assert_instr (vcvt . f16 . f32))]
+#[cfg_attr(all(test, target_arch = "arm"), assert_instr(vcvt))]
 #[cfg_attr(
     all(test, any(target_arch = "aarch64", target_arch = "arm64ec")),
     assert_instr(fcvtn)
diff --git a/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml b/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml
index f3faf1483827..42f716874b37 100644
--- a/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml
+++ b/library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml
@@ -5669,7 +5669,7 @@ intrinsics:
       - *neon-fp16
       - *neon-unstable-f16
       - *target-not-arm64ec
-    assert_instr: [nop]
+    assert_instr: [fdiv]
     safety: safe
     types:
       - [f16, 'h']
@@ -5694,7 +5694,7 @@ intrinsics:
     arguments: ["a: {type[1]}", "b: {type[1]}"]
     return_type: "{type[1]}"
     attr: [*neon-stable]
-    assert_instr: [nop]
+    assert_instr: [sub]
     safety: safe
     types:
       - ['d_s64', 'i64']
@@ -5710,7 +5710,7 @@ intrinsics:
       - *neon-fp16
       - *neon-unstable-f16
       - *target-not-arm64ec
-    assert_instr: [nop]
+    assert_instr: [fsub]
     safety: safe
     types:
       - ['h_f16', 'f16']
@@ -11271,7 +11271,7 @@ intrinsics:
       - *neon-fp16
       - *neon-unstable-f16
       - *target-not-arm64ec
-    assert_instr: [nop]
+    assert_instr: [fmul]
     safety: safe
     types:
       - [f16, 'h']
diff --git a/library/stdarch/crates/stdarch-gen-arm/spec/neon/arm_shared.spec.yml b/library/stdarch/crates/stdarch-gen-arm/spec/neon/arm_shared.spec.yml
index 9727f0a4bbe4..e8b31d73f939 100644
--- a/library/stdarch/crates/stdarch-gen-arm/spec/neon/arm_shared.spec.yml
+++ b/library/stdarch/crates/stdarch-gen-arm/spec/neon/arm_shared.spec.yml
@@ -10732,7 +10732,7 @@ intrinsics:
     return_type: "{neon_type[1]}"
     attr:
       - *neon-v7
-      - FnCall: [cfg_attr, [*test-is-arm, {FnCall: [assert_instr, [vcvt.f16.f32]]}]]
+      - FnCall: [cfg_attr, [*test-is-arm, {FnCall: [assert_instr, [vcvt]]}]]
       - FnCall: [cfg_attr, [*neon-target-aarch64-arm64ec, {FnCall: [assert_instr, [fcvtn]]}]]
       - *arm-fp16
       - *neon-unstable-f16