# HG changeset patch
# User Gilles Duboscq <duboscq@ssw.jku.at>
# Date 1363003574 -3600
# Node ID 5ceaf43459b5fe3fe0d960abbee5c3d3349d0382
# Parent  0339d17fa9509519729228ba8332f82dd9749662
Use a DeoptimizeOp to avoid spilling before the deoptimize runtime call

diff -r 0339d17fa950 -r 5ceaf43459b5 graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java
--- a/graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java	Fri Mar 08 12:50:22 2013 +0100
+++ b/graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java	Mon Mar 11 13:06:14 2013 +0100
@@ -775,13 +775,6 @@
     }
 
     @Override
-    public void emitDeoptimize(DeoptimizationAction action, DeoptimizationReason reason) {
-        LIRFrameState info = state();
-        LabelRef stubEntry = createDeoptStub(action, reason, info);
-        append(new JumpOp(stubEntry, info));
-    }
-
-    @Override
     public void emitMembar(int barriers) {
         int necessaryBarriers = target.arch.requiredBarriers(barriers);
         if (target.isMP && necessaryBarriers != 0) {
diff -r 0339d17fa950 -r 5ceaf43459b5 graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64DeoptimizeOp.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64DeoptimizeOp.java	Mon Mar 11 13:06:14 2013 +0100
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2012, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.hotspot.amd64;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.code.RuntimeCallTarget.Descriptor;
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.asm.amd64.*;
+import com.oracle.graal.lir.*;
+import com.oracle.graal.lir.LIRInstruction.Opcode;
+import com.oracle.graal.lir.amd64.*;
+import com.oracle.graal.lir.asm.*;
+
+@Opcode("DEOPT")
+final class AMD64DeoptimizeOp extends AMD64LIRInstruction {
+
+    public static final Descriptor DEOPTIMIZE = new Descriptor("deoptimize", true, void.class);
+
+    private DeoptimizationAction action;
+    private DeoptimizationReason reason;
+    @State private LIRFrameState info;
+
+    AMD64DeoptimizeOp(DeoptimizationAction action, DeoptimizationReason reason, LIRFrameState info) {
+        this.action = action;
+        this.reason = reason;
+        this.info = info;
+    }
+
+    @Override
+    public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
+        Register scratch = tasm.frameMap.registerConfig.getScratchRegister();
+        masm.movl(scratch, tasm.runtime.encodeDeoptActionAndReason(action, reason));
+        AMD64Call.directCall(tasm, masm, tasm.runtime.lookupRuntimeCall(DEOPTIMIZE), info);
+    }
+}
diff -r 0339d17fa950 -r 5ceaf43459b5 graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Fri Mar 08 12:50:22 2013 +0100
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Mon Mar 11 13:06:14 2013 +0100
@@ -182,6 +182,11 @@
             emitMove(exceptionParameter, exception);
             append(new AMD64HotSpotUnwindOp(exceptionParameter));
         }
+
+        @Override
+        public void emitDeoptimize(DeoptimizationAction action, DeoptimizationReason reason) {
+            append(new AMD64DeoptimizeOp(action, reason, state()));
+        }
     }
 
     /**
diff -r 0339d17fa950 -r 5ceaf43459b5 graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotRuntime.java
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotRuntime.java	Fri Mar 08 12:50:22 2013 +0100
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotRuntime.java	Mon Mar 11 13:06:14 2013 +0100
@@ -23,8 +23,8 @@
 package com.oracle.graal.hotspot.amd64;
 
 import static com.oracle.graal.amd64.AMD64.*;
-import static com.oracle.graal.compiler.amd64.AMD64DeoptimizationStub.*;
 import static com.oracle.graal.compiler.amd64.AMD64LIRGenerator.*;
+import static com.oracle.graal.hotspot.amd64.AMD64DeoptimizeOp.*;
 import static com.oracle.graal.hotspot.nodes.IdentityHashCodeStubCall.*;
 import static com.oracle.graal.hotspot.nodes.MonitorEnterStubCall.*;
 import static com.oracle.graal.hotspot.nodes.MonitorExitStubCall.*;