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changeset 3595:97c1d4902e3f

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IdealGraphVisualizer: in the server compiler scheduler, detect and handle any cycles in predecessor relations between nodes.
author Peter Hofer <peter.hofer@jku.at>
date Mon, 17 Oct 2011 16:29:11 +0200
parents af1319bc4fd5
children 3a0a26011371
files src/share/tools/IdealGraphVisualizer/ServerCompiler/src/com/sun/hotspot/igv/servercompiler/ServerCompilerScheduler.java
diffstat 1 files changed, 5 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/tools/IdealGraphVisualizer/ServerCompiler/src/com/sun/hotspot/igv/servercompiler/ServerCompilerScheduler.java	Tue Oct 18 20:07:52 2011 +0200
+++ b/src/share/tools/IdealGraphVisualizer/ServerCompiler/src/com/sun/hotspot/igv/servercompiler/ServerCompilerScheduler.java	Mon Oct 17 16:29:11 2011 +0200
@@ -111,7 +111,12 @@
                         p = parent;
                         break;
                     }
+
                     p = p.preds.get(0);
+                    if (p == proj) {
+                        // Cycle, stop
+                        break;
+                    }
 
                     if (p.block == null) {
                         p.block = block;