From 7caf80e27ca960be1dd65684122865a128525307 Mon Sep 17 00:00:00 2001
From: Stephen Chung <schungx@live.com>
Date: Sat, 18 Mar 2023 09:50:50 +0800
Subject: [PATCH] Remove BP optimization.

---
 CHANGELOG.md     | 6 ++++++
 src/eval/expr.rs | 1 +
 src/eval/stmt.rs | 1 +
 3 files changed, 8 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d3cf23b..915645e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 Rhai Release Notes
 ==================
 
+Version 1.14.0
+==============
+
+The code hacks that attempt to optimize branch prediction performance are removed because benchmarks do not show any material speed improvements.
+
+
 Version 1.13.0
 ==============
 
diff --git a/src/eval/expr.rs b/src/eval/expr.rs
index 2af68f55..540eb7a7 100644
--- a/src/eval/expr.rs
+++ b/src/eval/expr.rs
@@ -431,6 +431,7 @@ impl Engine {
             #[cfg(not(feature = "no_object"))]
             Expr::Dot(..) => self.eval_dot_index_chain(global, caches, scope, this_ptr, expr, None),
 
+            #[allow(unreachable_patterns)]
             _ => unreachable!("expression cannot be evaluated: {:?}", expr),
         }
     }
diff --git a/src/eval/stmt.rs b/src/eval/stmt.rs
index 5d247e9d..2410d036 100644
--- a/src/eval/stmt.rs
+++ b/src/eval/stmt.rs
@@ -946,6 +946,7 @@ impl Engine {
                 Ok(Dynamic::UNIT)
             }
 
+            #[allow(unreachable_patterns)]
             _ => unreachable!("statement cannot be evaluated: {:?}", stmt),
         }
     }