# HG changeset patch
# User Josef Eisl <josef.eisl@jku.at>
# Date 1449768127 -3600
# Node ID f2a8407253da65ae5abe53cd73821dd17f3766a6
# Parent  40f5437c92e9e49f199feafe268f4c44a7a9d447
TraceRA: move resolution: count number of created stack slots.

diff -r 40f5437c92e9 -r f2a8407253da graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/TraceGlobalMoveResolver.java
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/TraceGlobalMoveResolver.java	Thu Dec 10 18:21:43 2015 +0100
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/TraceGlobalMoveResolver.java	Thu Dec 10 18:22:07 2015 +0100
@@ -48,6 +48,7 @@
 import jdk.vm.ci.meta.Value;
 
 import com.oracle.graal.debug.Debug;
+import com.oracle.graal.debug.DebugMetric;
 import com.oracle.graal.debug.Indent;
 import com.oracle.graal.lir.LIRInsertionBuffer;
 import com.oracle.graal.lir.LIRInstruction;
@@ -62,6 +63,8 @@
  */
 final class TraceGlobalMoveResolver extends TraceGlobalMoveResolutionPhase.MoveResolver {
 
+    private static final DebugMetric cycleBreakingSlotsAllocated = Debug.metric("TraceRA[cycleBreakingSlotsAllocated(global)]");
+
     private int insertIdx;
     private LIRInsertionBuffer insertionBuffer; // buffer where moves are inserted
 
@@ -388,6 +391,7 @@
         Value from = mappingFrom.get(spillCandidate);
         try (Indent indent = Debug.logAndIndent("BreakCycle: %s", from)) {
             VirtualStackSlot spillSlot = frameMapBuilder.allocateSpillSlot(from.getLIRKind());
+            cycleBreakingSlotsAllocated.increment();
             if (Debug.isLogEnabled()) {
                 Debug.log("created new slot for spilling: %s", spillSlot);
             }
diff -r 40f5437c92e9 -r f2a8407253da graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/lsra/TraceLocalMoveResolver.java
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/lsra/TraceLocalMoveResolver.java	Thu Dec 10 18:21:43 2015 +0100
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/trace/lsra/TraceLocalMoveResolver.java	Thu Dec 10 18:22:07 2015 +0100
@@ -45,6 +45,7 @@
 import jdk.vm.ci.meta.Value;
 
 import com.oracle.graal.debug.Debug;
+import com.oracle.graal.debug.DebugMetric;
 import com.oracle.graal.debug.Indent;
 import com.oracle.graal.lir.LIRInsertionBuffer;
 import com.oracle.graal.lir.LIRInstruction;
@@ -56,6 +57,8 @@
  */
 final class TraceLocalMoveResolver {
 
+    private static final DebugMetric cycleBreakingSlotsAllocated = Debug.metric("TraceRA[cycleBreakingSlotsAllocated(local)]");
+
     private static final int STACK_SLOT_IN_CALLER_FRAME_IDX = -1;
     private final TraceLinearScan allocator;
 
@@ -428,6 +431,7 @@
             if (spillSlot1 == null) {
                 spillSlot1 = getAllocator().getFrameMapBuilder().allocateSpillSlot(fromInterval1.kind());
                 fromInterval1.setSpillSlot(spillSlot1);
+                cycleBreakingSlotsAllocated.increment();
             }
             spillInterval(spillCandidate, fromInterval1, spillSlot1);
             return;