# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1395668488 -3600
# Node ID 4c5ed5a670ed3c247855a8510442125c4d2edffd
# Parent  8dfd3f53ba4a089723ef89ce6bed267788b7688a
HSAIL: implemented storing compressed constants and made HSAILHotSpotLIRGenerator implement HotSpotLIRGenerator
Contributed-by: Eric Caspole <eric.caspole@amd.com>

diff -r 8dfd3f53ba4a -r 4c5ed5a670ed graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotLIRGenerator.java
--- a/graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotLIRGenerator.java	Mon Mar 24 11:24:22 2014 +0100
+++ b/graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotLIRGenerator.java	Mon Mar 24 14:41:28 2014 +0100
@@ -31,6 +31,9 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.compiler.hsail.*;
 import com.oracle.graal.hotspot.*;
+import com.oracle.graal.hotspot.HotSpotVMConfig.CompressEncoding;
+import com.oracle.graal.hotspot.meta.*;
+import com.oracle.graal.hotspot.nodes.*;
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.hsail.*;
 import com.oracle.graal.lir.hsail.HSAILControlFlow.*;
@@ -45,7 +48,7 @@
 /**
  * The HotSpot specific portion of the HSAIL LIR generator.
  */
-public class HSAILHotSpotLIRGenerator extends HSAILLIRGenerator {
+public class HSAILHotSpotLIRGenerator extends HSAILLIRGenerator implements HotSpotLIRGenerator {
 
     private final HotSpotVMConfig config;
 
@@ -54,6 +57,11 @@
         this.config = config;
     }
 
+    @Override
+    public HotSpotProviders getProviders() {
+        return (HotSpotProviders) super.getProviders();
+    }
+
     private int getLogMinObjectAlignment() {
         return config.logMinObjAlignment();
     }
@@ -87,6 +95,41 @@
         return true;
     }
 
+    @Override
+    public StackSlot getLockSlot(int lockDepth) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
+    @Override
+    public void visitDirectCompareAndSwap(DirectCompareAndSwapNode x) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
+    @Override
+    public void emitPrefetchAllocate(ValueNode address, ValueNode distance) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
+    @Override
+    public void emitJumpToExceptionHandlerInCaller(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
+    @Override
+    public void emitPatchReturnAddress(ValueNode address) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
+    @Override
+    public void emitDeoptimizeCaller(DeoptimizationAction action, DeoptimizationReason reason) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
+    @Override
+    public void emitTailcall(Value[] args, Value address) {
+        throw GraalInternalError.shouldNotReachHere("NYI");
+    }
+
     /**
      * Appends either a {@link CompareAndSwapOp} or a {@link CompareAndSwapCompressedOp} depending
      * on whether the memory location of a given {@link LoweredCompareAndSwapNode} contains a
@@ -163,6 +206,9 @@
                 if (isCompressed) {
                     if ((c.getKind() == Kind.Object) && c.isNull()) {
                         append(new StoreConstantOp(Kind.Int, storeAddress, Constant.forInt(0), state));
+                    } else if (c.getKind() == Kind.Long) {
+                        Constant value = compress(c, config.getKlassEncoding());
+                        append(new StoreConstantOp(Kind.Int, storeAddress, value, state));
                     } else {
                         throw GraalInternalError.shouldNotReachHere("can't handle: " + access);
                     }
@@ -226,4 +272,14 @@
         // this version of emitForeignCall not used for now
     }
 
+    /**
+     * @return a compressed version of the incoming constant lifted from AMD64HotSpotLIRGenerator
+     */
+    protected static Constant compress(Constant c, CompressEncoding encoding) {
+        if (c.getKind() == Kind.Long) {
+            return Constant.forIntegerKind(Kind.Int, (int) (((c.asLong() - encoding.base) >> encoding.shift) & 0xffffffffL), c.getPrimitiveAnnotation());
+        } else {
+            throw GraalInternalError.shouldNotReachHere();
+        }
+    }
 }