JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / dfg / DFGFlushFormat.h

diff --git a/dfg/DFGFlushFormat.h b/dfg/DFGFlushFormat.h
index 10e3c0090ae32944f5bd52f439e8254b53e481d3..480944ba6ee7a4abb02a8959cd5ce001ca22d6f0 100644 (file)
--- a/dfg/DFGFlushFormat.h
+++ b/dfg/DFGFlushFormat.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013, 2014 Apple Inc. All rights reserved.
+ * Copyright (C) 2013-2015 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -44,7 +44,6 @@ enum FlushFormat {
     FlushedCell,
     FlushedBoolean,
     FlushedJSValue,
-    FlushedArguments,
     ConflictingFlush
 };
 
@@ -55,7 +54,6 @@ inline NodeFlags resultFor(FlushFormat format)
     case FlushedJSValue:
     case FlushedCell:
     case ConflictingFlush:
-    case FlushedArguments:
         return NodeResultJS;
     case FlushedInt32:
         return NodeResultInt32;
@@ -76,7 +74,6 @@ inline UseKind useKindFor(FlushFormat format)
     case DeadFlush:
     case FlushedJSValue:
     case ConflictingFlush:
-    case FlushedArguments:
         return UntypedUse;
     case FlushedCell:
         return CellUse;
@@ -93,6 +90,11 @@ inline UseKind useKindFor(FlushFormat format)
     return UntypedUse;
 }
 
+inline SpeculatedType typeFilterFor(FlushFormat format)
+{
+    return typeFilterFor(useKindFor(format));
+}
+
 inline DataFormat dataFormatFor(FlushFormat format)
 {
     switch (format) {
@@ -111,13 +113,27 @@ inline DataFormat dataFormatFor(FlushFormat format)
         return DataFormatCell;
     case FlushedBoolean:
         return DataFormatBoolean;
-    case FlushedArguments:
-        return DataFormatArguments;
     }
     RELEASE_ASSERT_NOT_REACHED();
     return DataFormatDead;
 }
 
+inline FlushFormat merge(FlushFormat a, FlushFormat b)
+{
+    if (a == DeadFlush)
+        return b;
+    if (b == DeadFlush)
+        return a;
+    if (a == b)
+        return a;
+    return ConflictingFlush;
+}
+
+inline bool isConcrete(FlushFormat format)
+{
+    return format != DeadFlush && format != ConflictingFlush;
+}
+
 } } // namespace JSC::DFG
 
 namespace WTF {