# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1432477781 -7200
# Node ID 2cb94a7ae1b701f093c0e1f901afac03abab2c22
# Parent  b118c9be1d1f54bb18208b42145b4f0d73026083
avoid unnecessary loading of regex classes when assertions are disabled

diff -r b118c9be1d1f -r 2cb94a7ae1b7 graal/com.oracle.graal.lir/src/com/oracle/graal/lir/phases/LIRPhase.java
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/phases/LIRPhase.java	Sun May 24 14:44:28 2015 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/phases/LIRPhase.java	Sun May 24 16:29:41 2015 +0200
@@ -84,7 +84,14 @@
         }
     };
 
-    private static final Pattern NAME_PATTERN = Pattern.compile("[A-Z][A-Za-z0-9]+");
+    @SuppressWarnings("all")
+    private static boolean assertionsEnabled() {
+        boolean enabled = false;
+        assert enabled = true;
+        return enabled;
+    }
+
+    private static final Pattern NAME_PATTERN = assertionsEnabled() ? Pattern.compile("[A-Z][A-Za-z0-9]+") : null;
 
     private static boolean checkName(String name) {
         assert name == null || NAME_PATTERN.matcher(name).matches() : "illegal phase name: " + name;
diff -r b118c9be1d1f -r 2cb94a7ae1b7 graal/com.oracle.graal.phases/src/com/oracle/graal/phases/BasePhase.java
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/BasePhase.java	Sun May 24 14:44:28 2015 +0200
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/BasePhase.java	Sun May 24 16:29:41 2015 +0200
@@ -62,7 +62,14 @@
      */
     private final DebugMemUseTracker memUseTracker;
 
-    private static final Pattern NAME_PATTERN = Pattern.compile("[A-Z][A-Za-z0-9]+");
+    @SuppressWarnings("all")
+    private static boolean assertionsEnabled() {
+        boolean enabled = false;
+        assert enabled = true;
+        return enabled;
+    }
+
+    private static final Pattern NAME_PATTERN = assertionsEnabled() ? Pattern.compile("[A-Z][A-Za-z0-9]+") : null;
 
     private static boolean checkName(String name) {
         assert NAME_PATTERN.matcher(name).matches() : "illegal phase name: " + name;