Truncate rather than round to nearest when performing float-to-integer...

src/builtins.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 75 matching lines @@
   V(LoadIC_Normal,              LOAD_IC, MONOMORPHIC)                     \
   V(LoadIC_ArrayLength,         LOAD_IC, MONOMORPHIC)                     \
   V(LoadIC_StringLength,        LOAD_IC, MONOMORPHIC)                     \
   V(LoadIC_FunctionPrototype,   LOAD_IC, MONOMORPHIC)                     \
   V(LoadIC_Megamorphic,         LOAD_IC, MEGAMORPHIC)                     \
                                                                           \
   V(KeyedLoadIC_Initialize,     KEYED_LOAD_IC, UNINITIALIZED)             \
   V(KeyedLoadIC_PreMonomorphic, KEYED_LOAD_IC, PREMONOMORPHIC)            \
   V(KeyedLoadIC_Generic,        KEYED_LOAD_IC, MEGAMORPHIC)               \
   V(KeyedLoadIC_String,         KEYED_LOAD_IC, MEGAMORPHIC)               \
-  V(KeyedLoadIC_ExternalByteArray,          KEYED_LOAD_IC, MEGAMORPHIC)   \
-  V(KeyedLoadIC_ExternalUnsignedByteArray,  KEYED_LOAD_IC, MEGAMORPHIC)   \
-  V(KeyedLoadIC_ExternalShortArray,         KEYED_LOAD_IC, MEGAMORPHIC)   \
-  V(KeyedLoadIC_ExternalUnsignedShortArray, KEYED_LOAD_IC, MEGAMORPHIC)   \
-  V(KeyedLoadIC_ExternalIntArray,           KEYED_LOAD_IC, MEGAMORPHIC)   \
-  V(KeyedLoadIC_ExternalUnsignedIntArray,   KEYED_LOAD_IC, MEGAMORPHIC)   \
-  V(KeyedLoadIC_ExternalFloatArray,         KEYED_LOAD_IC, MEGAMORPHIC)   \
   V(KeyedLoadIC_IndexedInterceptor,         KEYED_LOAD_IC, MEGAMORPHIC)   \
                                                                           \
   V(StoreIC_Initialize,         STORE_IC, UNINITIALIZED)                  \
   V(StoreIC_ArrayLength,        STORE_IC, MONOMORPHIC)                    \
   V(StoreIC_Normal,             STORE_IC, MONOMORPHIC)                    \
   V(StoreIC_Megamorphic,        STORE_IC, MEGAMORPHIC)                    \
   V(StoreIC_GlobalProxy,        STORE_IC, MEGAMORPHIC)                    \
                                                                           \
   V(KeyedStoreIC_Initialize,    KEYED_STORE_IC, UNINITIALIZED)            \
   V(KeyedStoreIC_Generic,       KEYED_STORE_IC, MEGAMORPHIC)              \
-  V(KeyedStoreIC_ExternalByteArray,          KEYED_STORE_IC, MEGAMORPHIC) \
-  V(KeyedStoreIC_ExternalUnsignedByteArray,  KEYED_STORE_IC, MEGAMORPHIC) \
-  V(KeyedStoreIC_ExternalShortArray,         KEYED_STORE_IC, MEGAMORPHIC) \
-  V(KeyedStoreIC_ExternalUnsignedShortArray, KEYED_STORE_IC, MEGAMORPHIC) \
-  V(KeyedStoreIC_ExternalIntArray,           KEYED_STORE_IC, MEGAMORPHIC) \
-  V(KeyedStoreIC_ExternalUnsignedIntArray,   KEYED_STORE_IC, MEGAMORPHIC) \
-  V(KeyedStoreIC_ExternalFloatArray,         KEYED_STORE_IC, MEGAMORPHIC) \
                                                                           \
   /* Uses KeyedLoadIC_Initialize; must be after in list. */               \
   V(FunctionCall,               BUILTIN, UNINITIALIZED)                   \
   V(FunctionApply,              BUILTIN, UNINITIALIZED)                   \
                                                                           \
   V(ArrayCode,                  BUILTIN, UNINITIALIZED)                   \
   V(ArrayConstructCode,         BUILTIN, UNINITIALIZED)                   \
                                                                           \
   V(StringConstructCode,        BUILTIN, UNINITIALIZED)                   \
                                                                           \
@@ skipping 146 matching lines @@
   static void Generate_ArrayConstructCode(MacroAssembler* masm);
 
   static void Generate_StringConstructCode(MacroAssembler* masm);
 
   static void Generate_OnStackReplacement(MacroAssembler* masm);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_BUILTINS_H_