Do not report polymorphism for simple cases in IntNode

Author: fangerer

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/BuiltinConstructors.java

@@ -1117,7 +1117,6 @@ public PFrozenSet frozensetIterable(VirtualFrame frame, Object cls, Object itera
     // int(x, base=10)
     @Builtin(name = INT, minNumOfPositionalArgs = 1, parameterNames = {"cls", "x", "base"}, numOfPositionalOnlyArgs = 2, constructsClass = PythonBuiltinClassType.PInt)
     @GenerateNodeFactory
-    @ReportPolymorphism
     public abstract static class IntNode extends PythonTernaryBuiltinNode {
 
         private final ConditionProfile invalidBase = ConditionProfile.createBinaryProfile();
@@ -1390,17 +1389,20 @@ Object createInt(Object cls, double arg, @SuppressWarnings("unused") PNone base,
         // String
 
         @Specialization(guards = "isNoValue(base)")
+        @Megamorphic
         Object createInt(VirtualFrame frame, Object cls, String arg, @SuppressWarnings("unused") PNone base) {
             return stringToInt(frame, cls, arg, 10, arg);
         }
 
         @Specialization
+        @Megamorphic
         Object parsePIntError(VirtualFrame frame, Object cls, String number, int base) {
             checkBase(base);
             return stringToInt(frame, cls, number, base, number);
         }
 
         @Specialization(guards = "!isNoValue(base)", limit = "getCallSiteInlineCacheMaxDepth()")
+        @Megamorphic
         Object createIntError(VirtualFrame frame, Object cls, String number, Object base,
                         @CachedLibrary("base") PythonObjectLibrary lib) {
             int intBase = lib.asSizeWithState(base, null, PArguments.getThreadState(frame));
@@ -1410,18 +1412,21 @@ Object createIntError(VirtualFrame frame, Object cls, String number, Object base
 
         // PIBytesLike
         @Specialization
+        @Megamorphic
         Object parseBytesError(VirtualFrame frame, Object cls, PBytesLike arg, int base) {
             checkBase(base);
             return stringToInt(frame, cls, toString(arg), base, arg);
         }
 
         @Specialization(guards = "isNoValue(base)")
+        @Megamorphic
         Object parseBytesError(VirtualFrame frame, Object cls, PBytesLike arg, @SuppressWarnings("unused") PNone base) {
             return parseBytesError(frame, cls, arg, 10);
         }
 
         // PString
         @Specialization(guards = "isNoValue(base)", limit = "1")
+        @Megamorphic
         Object parsePInt(VirtualFrame frame, Object cls, PString arg, @SuppressWarnings("unused") PNone base,
                         @CachedLibrary("arg") PythonObjectLibrary lib,
                         @CachedLibrary(limit = "1") PythonObjectLibrary methodLib) {
@@ -1433,6 +1438,7 @@ Object parsePInt(VirtualFrame frame, Object cls, PString arg, @SuppressWarnings(
         }
 
         @Specialization(limit = "1")
+        @Megamorphic
         Object parsePInt(VirtualFrame frame, Object cls, PString arg, int base,
                         @CachedLibrary("arg") PythonObjectLibrary lib,
                         @CachedLibrary(limit = "1") PythonObjectLibrary methodLib) {
@@ -1471,6 +1477,7 @@ Object fail(Object cls, Object arg, Object base) {
         }
 
         @Specialization(guards = {"isNoValue(base)", "!isNoValue(obj)", "!isHandledType(obj)"}, limit = "5")
+        @Megamorphic
         Object createIntGeneric(VirtualFrame frame, Object cls, Object obj, @SuppressWarnings("unused") PNone base,
                         @CachedLibrary(value = "obj") PythonObjectLibrary objectLib,
                         @CachedLibrary(limit = "1") PythonObjectLibrary methodLib) {
@@ -1492,7 +1499,7 @@ Object createIntGeneric(VirtualFrame frame, Object cls, Object obj, @SuppressWar
                         if (objectLib.isBuffer(obj)) {
                             try {
                                 byte[] bytes = objectLib.getBufferBytes(obj);
-                                return stringToInt(frame, cls, toString(bytes), 10, obj);
+                                return stringToInt(frame, cls, PythonUtils.newString(bytes), 10, obj);
                             } catch (UnsupportedMessageException e) {
                                 CompilerDirectives.transferToInterpreterAndInvalidate();
                                 throw new IllegalStateException("Object claims to be a buffer but does not support getBufferBytes()");
@@ -1591,14 +1598,8 @@ private String toString(PBytesLike pByteArray) {
                 CompilerDirectives.transferToInterpreterAndInvalidate();
                 toByteArrayNode = insert(BytesNodes.ToBytesNode.create());
             }
-            return toString(toByteArrayNode.execute(pByteArray));
-        }
-
-        @TruffleBoundary
-        private static String toString(byte[] barr) {
-            return new String(barr);
+            return PythonUtils.newString(toByteArrayNode.execute(pByteArray));
         }
-
     }
 
     // bool([x])