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-rw-r--r--chapter04/src/main/java/com/seaofnodes/simple/node/Node.java11
1 files changed, 1 insertions, 10 deletions
diff --git a/chapter04/src/main/java/com/seaofnodes/simple/node/Node.java b/chapter04/src/main/java/com/seaofnodes/simple/node/Node.java
index eb7d8333..2a4aad2f 100644
--- a/chapter04/src/main/java/com/seaofnodes/simple/node/Node.java
+++ b/chapter04/src/main/java/com/seaofnodes/simple/node/Node.java
@@ -210,12 +210,6 @@ public abstract class Node {
// Graph-based optimizations
/**
- * We allow disabling peephole opt so that we can observe the
- * full graph, vs the optimized graph.
- */
- public static boolean _disablePeephole = false;
-
- /**
* Try to peephole at this node and return a better replacement Node if
* possible. We compute a {@link Type} and then check and replace:
* <ul>
@@ -244,9 +238,6 @@ public abstract class Node {
// Compute initial or improved Type
Type type = _type = compute();
- if (_disablePeephole)
- return null; // Peephole optimizations turned off
-
// Replace constant computations from non-constants with a constant node
if (!(this instanceof ConstantNode) && type.isConstant())
return deadCodeElim(new ConstantNode(type).peephole());
@@ -360,7 +351,7 @@ public abstract class Node {
* Used to allow repeating tests in the same JVM. This just resets the
* Node unique id generator, and is done as part of making a new Parser.
*/
- public static void reset() { UNIQUE_ID = 1; _disablePeephole=false; }
+ public static void reset() { UNIQUE_ID = 1; }
/**
* Debugging utility to find a Node by index