From 74284a28204f6f9e26bfde7a53b7a33bed451e09 Mon Sep 17 00:00:00 2001
From: emteere <47253321+emteere@users.noreply.github.com>
Date: Thu, 9 Jul 2020 18:51:39 -0400
Subject: [PATCH] GT-0_emteere bugfix - performance issue for function start
 patterns post function existence check

---
 .../ghidra/app/analyzers/FunctionStartFuncAnalyzer.java     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Ghidra/Features/BytePatterns/src/main/java/ghidra/app/analyzers/FunctionStartFuncAnalyzer.java b/Ghidra/Features/BytePatterns/src/main/java/ghidra/app/analyzers/FunctionStartFuncAnalyzer.java
index 7d8f120da3..36ed32067e 100644
--- a/Ghidra/Features/BytePatterns/src/main/java/ghidra/app/analyzers/FunctionStartFuncAnalyzer.java
+++ b/Ghidra/Features/BytePatterns/src/main/java/ghidra/app/analyzers/FunctionStartFuncAnalyzer.java
@@ -1,6 +1,5 @@
 /* ###
  * IP: GHIDRA
- * REVIEWED: YES
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,6 +44,11 @@ public class FunctionStartFuncAnalyzer extends FunctionStartAnalyzer {
 			getOrCreatePotentialMatchPropertyMap(program).getAddressSet();
 		set = set.intersect(potentialPreMatches);
 
+		// no previous no-function existing pre-requisites to check
+		if (set.isEmpty()) {
+			return true;
+		}
+		
 		return super.added(program, set, monitor, log);
 	}