Cranelift: Rewrite or(and(x, y), not(y)) => or(x, not(y)) (#5676)

Co-authored-by: Rainy Sinclair <844493+itsrainy@users.noreply.github.com>

cranelift/codegen/src/isle_prelude.rs

@@ -109,6 +109,11 @@ macro_rules! isle_common_prelude_methods {
             !x
         }
 
+        #[inline]
+        fn u64_eq(&mut self, x: u64, y: u64) -> u64 {
+            u64::from(x == y)
+        }
+
         #[inline]
         fn u64_is_zero(&mut self, value: u64) -> bool {
             0 == value