--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/ConditionalEliminationTestBase.java	Thu Oct 17 20:27:44 2019 +0100
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/ConditionalEliminationTestBase.java	Thu Oct 17 20:53:35 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,20 +25,20 @@
 package org.graalvm.compiler.core.test;
 
 import org.graalvm.compiler.debug.DebugContext;
+import org.graalvm.compiler.loop.phases.ConvertDeoptimizeToGuardPhase;
 import org.graalvm.compiler.nodes.ProxyNode;
 import org.graalvm.compiler.nodes.StructuredGraph;
 import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
+import org.graalvm.compiler.nodes.spi.CoreProviders;
 import org.graalvm.compiler.nodes.spi.LoweringTool;
 import org.graalvm.compiler.phases.OptimisticOptimizations;
 import org.graalvm.compiler.phases.OptimisticOptimizations.Optimization;
 import org.graalvm.compiler.phases.common.CanonicalizerPhase;
 import org.graalvm.compiler.phases.common.ConditionalEliminationPhase;
-import org.graalvm.compiler.loop.phases.ConvertDeoptimizeToGuardPhase;
 import org.graalvm.compiler.phases.common.IterativeConditionalEliminationPhase;
 import org.graalvm.compiler.phases.common.LoweringPhase;
 import org.graalvm.compiler.phases.schedule.SchedulePhase;
 import org.graalvm.compiler.phases.tiers.HighTierContext;
-import org.graalvm.compiler.phases.tiers.PhaseContext;
 import org.junit.Assert;
 
 /**
@@ -68,7 +68,7 @@
         StructuredGraph graph = parseEager(snippet, AllowAssumptions.YES);
         DebugContext debug = graph.getDebug();
         debug.dump(DebugContext.BASIC_LEVEL, graph, "Graph");
-        PhaseContext context = new PhaseContext(getProviders());
+        CoreProviders context = getProviders();
         CanonicalizerPhase canonicalizer1 = new CanonicalizerPhase();
         CanonicalizerPhase canonicalizer = new CanonicalizerPhase();
         try (DebugContext.Scope scope = debug.scope("ConditionalEliminationTest", graph)) {
@@ -93,7 +93,7 @@
         assertEquals(referenceGraph, graph);
     }
 
-    protected void prepareGraph(StructuredGraph graph, CanonicalizerPhase canonicalizer, PhaseContext context, boolean applyLowering) {
+    protected void prepareGraph(StructuredGraph graph, CanonicalizerPhase canonicalizer, CoreProviders context, boolean applyLowering) {
         if (applyLowering) {
             new ConvertDeoptimizeToGuardPhase().apply(graph, context);
             new LoweringPhase(canonicalizer, LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, context);
@@ -105,7 +105,7 @@
 
     public void testProxies(String snippet, int expectedProxiesCreated) {
         StructuredGraph graph = parseEager(snippet, AllowAssumptions.YES);
-        PhaseContext context = new PhaseContext(getProviders());
+        CoreProviders context = getProviders();
         CanonicalizerPhase canonicalizer1 = new CanonicalizerPhase();
         canonicalizer1.disableSimplification();
         canonicalizer1.apply(graph, context);