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changeset 19328:fcefaa7f103d

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Schedule constants only in last schedule before LIR generation.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 12 Feb 2015 20:46:56 +0100
parents fcfd38578a00
children 57c53b1044a7
files graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java
diffstat 2 files changed, 9 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java	Thu Feb 12 20:38:02 2015 +0100
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java	Thu Feb 12 20:46:56 2015 +0100
@@ -267,6 +267,7 @@
             graph.maybeCompress();
 
             SchedulePhase schedule = new SchedulePhase();
+            schedule.setScheduleConstants(true);
             schedule.apply(graph);
             Debug.dump(schedule, "Final HIR schedule");
             return schedule;
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java	Thu Feb 12 20:38:02 2015 +0100
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java	Thu Feb 12 20:46:56 2015 +0100
@@ -305,6 +305,7 @@
     private BlockMap<List<ValueNode>> blockToNodesMap;
     private BlockMap<LocationSet> blockToKillSet;
     private final SchedulingStrategy selectedStrategy;
+    private boolean scheduleConstants;
 
     public SchedulePhase() {
         this(OptScheduleOutOfLoops.getValue() ? SchedulingStrategy.LATEST_OUT_OF_LOOPS : SchedulingStrategy.LATEST);
@@ -314,6 +315,10 @@
         this.selectedStrategy = strategy;
     }
 
+    public void setScheduleConstants(boolean value) {
+        scheduleConstants = value;
+    }
+
     @Override
     protected void run(StructuredGraph graph) {
         assert GraphOrder.assertNonCyclicGraph(graph);
@@ -449,6 +454,9 @@
         if (cfg.getNodeToBlock().containsKey(node)) {
             return;
         }
+        if (!scheduleConstants && node instanceof ConstantNode) {
+            return;
+        }
         if (node instanceof VirtualObjectNode) {
             return;
         }