# HG changeset patch
# User Roland Schatz <roland.schatz@oracle.com>
# Date 1373361276 -7200
# Node ID 9808158cfeab3f4e9377573123d8fda9adb097d8
# Parent  dcee58529a1c5509883d24e540a85f95df739590
Allow foreign call stubs to be declared as leaf methods.

diff -r dcee58529a1c -r 9808158cfeab 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	Tue Jul 09 11:21:06 2013 +0200
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Tue Jul 09 11:14:36 2013 +0200
@@ -178,7 +178,8 @@
             // record where preserved registers are saved
             for (Map.Entry<LIRFrameState, AMD64RegistersPreservationOp> e : gen.calleeSaveInfo.entrySet()) {
                 AMD64RegistersPreservationOp save = e.getValue();
-                save.update(definedRegisters, e.getKey().debugInfo(), frameMap);
+                DebugInfo info = e.getKey() == null ? null : e.getKey().debugInfo();
+                save.update(definedRegisters, info, frameMap);
             }
         }
 
diff -r dcee58529a1c -r 9808158cfeab graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java	Tue Jul 09 11:21:06 2013 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java	Tue Jul 09 11:14:36 2013 +0200
@@ -239,8 +239,9 @@
      *            cannot be re-executed.
      * @param killedLocations the memory locations killed by the foreign call
      */
-    private void linkForeignCall(Replacements replacements, ForeignCallDescriptor descriptor, long address, boolean prependThread, boolean reexecutable, LocationIdentity... killedLocations) {
-        ForeignCallStub stub = new ForeignCallStub(this, replacements, address, descriptor, prependThread, reexecutable, killedLocations);
+    private void linkForeignCall(Replacements replacements, ForeignCallDescriptor descriptor, long address, boolean prependThread, Transition transition, boolean reexecutable,
+                    LocationIdentity... killedLocations) {
+        ForeignCallStub stub = new ForeignCallStub(this, replacements, address, descriptor, prependThread, transition, reexecutable, killedLocations);
         HotSpotForeignCallLinkage linkage = stub.getLinkage();
         HotSpotForeignCallLinkage targetLinkage = stub.getTargetLinkage();
         linkage.setCompiledStub(stub);
@@ -283,22 +284,22 @@
         link(new UnwindExceptionToCallerStub(this, r, target, registerStubCall(UNWIND_EXCEPTION_TO_CALLER, NOT_REEXECUTABLE, ANY_LOCATION)));
         link(new VerifyOopStub(this, r, target, registerStubCall(VERIFY_OOP, REEXECUTABLE, NO_LOCATIONS)));
 
-        linkForeignCall(r, IDENTITY_HASHCODE, c.identityHashCodeAddress, PREPEND_THREAD, NOT_REEXECUTABLE, MARK_WORD_LOCATION);
-        linkForeignCall(r, REGISTER_FINALIZER, c.registerFinalizerAddress, PREPEND_THREAD, NOT_REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, CREATE_NULL_POINTER_EXCEPTION, c.createNullPointerExceptionAddress, PREPEND_THREAD, REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, CREATE_OUT_OF_BOUNDS_EXCEPTION, c.createOutOfBoundsExceptionAddress, PREPEND_THREAD, REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, MONITORENTER, c.monitorenterAddress, PREPEND_THREAD, NOT_REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, MONITOREXIT, c.monitorexitAddress, PREPEND_THREAD, NOT_REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, NEW_MULTI_ARRAY, c.newMultiArrayAddress, PREPEND_THREAD, REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, DYNAMIC_NEW_ARRAY, c.dynamicNewArrayAddress, PREPEND_THREAD, REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, LOG_PRINTF, c.logPrintfAddress, PREPEND_THREAD, REEXECUTABLE, NO_LOCATIONS);
-        linkForeignCall(r, LOG_OBJECT, c.logObjectAddress, PREPEND_THREAD, REEXECUTABLE, NO_LOCATIONS);
-        linkForeignCall(r, LOG_PRIMITIVE, c.logPrimitiveAddress, PREPEND_THREAD, REEXECUTABLE, NO_LOCATIONS);
-        linkForeignCall(r, THREAD_IS_INTERRUPTED, c.threadIsInterruptedAddress, PREPEND_THREAD, NOT_REEXECUTABLE, ANY_LOCATION);
-        linkForeignCall(r, VM_ERROR, c.vmErrorAddress, PREPEND_THREAD, REEXECUTABLE, NO_LOCATIONS);
-        linkForeignCall(r, OSR_MIGRATION_END, c.osrMigrationEndAddress, DONT_PREPEND_THREAD, NOT_REEXECUTABLE, NO_LOCATIONS);
-        linkForeignCall(r, G1WBPRECALL, c.writeBarrierPreAddress, PREPEND_THREAD, REEXECUTABLE, NO_LOCATIONS);
-        linkForeignCall(r, G1WBPOSTCALL, c.writeBarrierPostAddress, PREPEND_THREAD, REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, IDENTITY_HASHCODE, c.identityHashCodeAddress, PREPEND_THREAD, NOT_LEAF, NOT_REEXECUTABLE, MARK_WORD_LOCATION);
+        linkForeignCall(r, REGISTER_FINALIZER, c.registerFinalizerAddress, PREPEND_THREAD, NOT_LEAF, NOT_REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, CREATE_NULL_POINTER_EXCEPTION, c.createNullPointerExceptionAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, CREATE_OUT_OF_BOUNDS_EXCEPTION, c.createOutOfBoundsExceptionAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, MONITORENTER, c.monitorenterAddress, PREPEND_THREAD, NOT_LEAF, NOT_REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, MONITOREXIT, c.monitorexitAddress, PREPEND_THREAD, NOT_LEAF, NOT_REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, NEW_MULTI_ARRAY, c.newMultiArrayAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, DYNAMIC_NEW_ARRAY, c.dynamicNewArrayAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, LOG_PRINTF, c.logPrintfAddress, PREPEND_THREAD, LEAF, REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, LOG_OBJECT, c.logObjectAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, LOG_PRIMITIVE, c.logPrimitiveAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, THREAD_IS_INTERRUPTED, c.threadIsInterruptedAddress, PREPEND_THREAD, NOT_LEAF, NOT_REEXECUTABLE, ANY_LOCATION);
+        linkForeignCall(r, VM_ERROR, c.vmErrorAddress, PREPEND_THREAD, NOT_LEAF, REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, OSR_MIGRATION_END, c.osrMigrationEndAddress, DONT_PREPEND_THREAD, LEAF, NOT_REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, G1WBPRECALL, c.writeBarrierPreAddress, PREPEND_THREAD, LEAF, REEXECUTABLE, NO_LOCATIONS);
+        linkForeignCall(r, G1WBPOSTCALL, c.writeBarrierPostAddress, PREPEND_THREAD, LEAF, REEXECUTABLE, NO_LOCATIONS);
         if (IntrinsifyObjectMethods.getValue()) {
             r.registerSubstitutions(ObjectSubstitutions.class);
         }
diff -r dcee58529a1c -r 9808158cfeab graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/ForeignCallStub.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/ForeignCallStub.java	Tue Jul 09 11:21:06 2013 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/ForeignCallStub.java	Tue Jul 09 11:14:36 2013 +0200
@@ -84,13 +84,13 @@
      *            be re-executed.
      * @param killedLocations the memory locations killed by the stub call
      */
-    public ForeignCallStub(HotSpotRuntime runtime, Replacements replacements, long address, ForeignCallDescriptor descriptor, boolean prependThread, boolean reexecutable,
+    public ForeignCallStub(HotSpotRuntime runtime, Replacements replacements, long address, ForeignCallDescriptor descriptor, boolean prependThread, Transition transition, boolean reexecutable,
                     LocationIdentity... killedLocations) {
-        super(runtime, replacements, HotSpotForeignCallLinkage.create(descriptor, 0L, PRESERVES_REGISTERS, JavaCallee, NOT_LEAF, reexecutable, killedLocations));
+        super(runtime, replacements, HotSpotForeignCallLinkage.create(descriptor, 0L, PRESERVES_REGISTERS, JavaCallee, transition, reexecutable, killedLocations));
         this.prependThread = prependThread;
         Class[] targetParameterTypes = createTargetParameters(descriptor);
         ForeignCallDescriptor targetSig = new ForeignCallDescriptor(descriptor.getName() + ":C", descriptor.getResultType(), targetParameterTypes);
-        target = HotSpotForeignCallLinkage.create(targetSig, address, DESTROYS_REGISTERS, NativeCall, NOT_LEAF, reexecutable, killedLocations);
+        target = HotSpotForeignCallLinkage.create(targetSig, address, DESTROYS_REGISTERS, NativeCall, transition, reexecutable, killedLocations);
     }
 
     /**
diff -r dcee58529a1c -r 9808158cfeab graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64SaveRegistersOp.java
--- a/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64SaveRegistersOp.java	Tue Jul 09 11:21:06 2013 +0200
+++ b/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64SaveRegistersOp.java	Tue Jul 09 11:14:36 2013 +0200
@@ -99,7 +99,9 @@
                 }
             }
             assert mapIndex == preserved;
-            debugInfo.setCalleeSaveInfo(new RegisterSaveLayout(keys, values));
+            if (debugInfo != null) {
+                debugInfo.setCalleeSaveInfo(new RegisterSaveLayout(keys, values));
+            }
         }
     }
 }