# HG changeset patch
# User Josef Eisl <josef.eisl@jku.at>
# Date 1437578294 -7200
# Node ID ac762c1bc9a4f51c310fd4415ead96168ff3e0a2
# Parent  399b05144895fc3e3b1f282331cb49589870dedd
LSStackSlotAllocator: only run if there are virtual stack slots.

diff -r 399b05144895 -r ac762c1bc9a4 graal/com.oracle.graal.lir/src/com/oracle/graal/lir/stackslotalloc/LSStackSlotAllocator.java
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/stackslotalloc/LSStackSlotAllocator.java	Wed Jul 22 17:10:21 2015 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/stackslotalloc/LSStackSlotAllocator.java	Wed Jul 22 17:18:14 2015 +0200
@@ -77,8 +77,10 @@
     }
 
     public void allocateStackSlots(FrameMapBuilderTool builder, LIRGenerationResult res) {
-        try (DebugCloseable t = MainTimer.start()) {
-            new Allocator(res.getLIR(), builder).allocate();
+        if (builder.getNumberOfStackSlots() > 0) {
+            try (DebugCloseable t = MainTimer.start()) {
+                new Allocator(res.getLIR(), builder).allocate();
+            }
         }
     }