vbinary and vunary microkernels assert pointers are not NULL

PiperOrigin-RevId: 319614242
diff --git a/src/f32-vbinary/gen/vrdivc-minmax-wasm-x4.c b/src/f32-vbinary/gen/vrdivc-minmax-wasm-x4.c
index 5b689e3..1e8aa5b 100644
--- a/src/f32-vbinary/gen/vrdivc-minmax-wasm-x4.c
+++ b/src/f32-vbinary/gen/vrdivc-minmax-wasm-x4.c
@@ -23,6 +23,9 @@
 {
   assert(n != 0);
   assert(n % sizeof(float) == 0);
+  assert(a != NULL);
+  assert(b != NULL);
+  assert(y != NULL);
 
   const float vy_min = params->scalar.min;
   const float vy_max = params->scalar.max;