# HG changeset patch
# User Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
# Date 1378391800 -7200
# Node ID 2bd626188d31932dd32075defe853e509638104d
# Parent  be9e54fbb69928dbd1a7d78d7692a560feffaba0
Introduce TruffleMinInvokeThreshold flag.

diff -r be9e54fbb699 -r 2bd626188d31 graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/GraalTruffleRuntime.java
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/GraalTruffleRuntime.java	Thu Sep 05 10:59:01 2013 +0200
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/GraalTruffleRuntime.java	Thu Sep 05 16:36:40 2013 +0200
@@ -65,7 +65,7 @@
         if (truffleCompiler == null) {
             truffleCompiler = new TruffleCompilerImpl();
         }
-        return new OptimizedCallTarget(rootNode, frameDescriptor, truffleCompiler, TruffleCompilationThreshold.getValue());
+        return new OptimizedCallTarget(rootNode, frameDescriptor, truffleCompiler, TruffleMinInvokeThreshold.getValue(), TruffleCompilationThreshold.getValue());
     }
 
     @Override
diff -r be9e54fbb699 -r 2bd626188d31 graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java	Thu Sep 05 10:59:01 2013 +0200
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/OptimizedCallTarget.java	Thu Sep 05 16:36:40 2013 +0200
@@ -43,10 +43,10 @@
     private static final PrintStream OUT = TTY.out().out();
     private static final int MIN_INVOKES_AFTER_INLINING = 2;
 
-    protected OptimizedCallTarget(RootNode rootNode, FrameDescriptor descriptor, TruffleCompiler compiler, int compilationThreshold) {
+    protected OptimizedCallTarget(RootNode rootNode, FrameDescriptor descriptor, TruffleCompiler compiler, int invokeCounter, int compilationThreshold) {
         super(rootNode, descriptor);
         this.compiler = compiler;
-        this.invokeCounter = compilationThreshold >> 7;
+        this.invokeCounter = invokeCounter;
         this.loopAndInvokeCounter = compilationThreshold;
         this.originalInvokeCounter = compilationThreshold;
         this.rootNode.setCallTarget(this);
@@ -185,7 +185,7 @@
 
     @Override
     public void reportLoopCount(int count) {
-        loopAndInvokeCounter -= count;
+        loopAndInvokeCounter = Math.max(0, loopAndInvokeCounter - count);
     }
 
     @Override
diff -r be9e54fbb699 -r 2bd626188d31 graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCompilerOptions.java
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCompilerOptions.java	Thu Sep 05 10:59:01 2013 +0200
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCompilerOptions.java	Thu Sep 05 16:36:40 2013 +0200
@@ -46,6 +46,8 @@
     @Option(help = "")
     public static final OptionValue<Integer> TruffleCompilationThreshold = new OptionValue<>(1000);
     @Option(help = "")
+    public static final OptionValue<Integer> TruffleMinInvokeThreshold = new OptionValue<>(3);
+    @Option(help = "")
     public static final OptionValue<Integer> TruffleInvalidationReprofileCount = new OptionValue<>(3);
     @Option(help = "")
     public static final OptionValue<Integer> TruffleReplaceReprofileCount = new OptionValue<>(10);