[runtime] Port TypedArrayPrototypeSet to C++

Bug: v8:6704
Change-Id: If636bdd682d76a6d58d36fc9bfbf1302a32468ab
Reviewed-on: https://chromium-review.googlesource.com/641671
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47732}

src/js/typedarray.js

@@ -250,50 +250,12 @@ TYPED_ARRAYS(TYPED_ARRAY_SUBARRAY_CASE)
 %SetForceInlineFlag(GlobalTypedArray.prototype.subarray);
 
 
+// 22.2.3.23%TypedArray%.prototype.set ( overloaded [ , offset ] )
 DEFINE_METHOD_LEN(
   GlobalTypedArray.prototype,
   set(obj, offset) {
-    var intOffset = IS_UNDEFINED(offset) ? 0 : TO_INTEGER(offset);
-    if (intOffset < 0) throw %make_range_error(kTypedArraySetNegativeOffset);
-
-    if (intOffset > %_MaxSmi()) {
-      throw %make_range_error(kTypedArraySetSourceTooLarge);
-    }
-
-    switch (%TypedArraySetFastCases(this, obj, intOffset)) {
-      // These numbers should be synchronized with runtime-typedarray.cc.
-      case 0: // TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE
-        return;
-      case 1: // TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING
-        %_TypedArraySetFromOverlapping(this, obj, intOffset);
-        return;
-      case 2: // TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING
-        if (intOffset === 0) {
-          %TypedArrayCopyElements(this, obj, %_TypedArrayGetLength(obj));
-        } else {
-          %_TypedArraySetFromArrayLike(
-              this, obj, %_TypedArrayGetLength(obj), intOffset);
-        }
-        return;
-      case 3: // TYPED_ARRAY_SET_NON_TYPED_ARRAY
-        var l = obj.length;
-        if (IS_UNDEFINED(l)) {
-          if (IS_NUMBER(obj)) {
-              // For number as a first argument, throw TypeError
-              // instead of silently ignoring the call, so that
-              // users know they did something wrong.
-              // (Consistent with Firefox and Blink/WebKit)
-              throw %make_type_error(kInvalidArgument);
-          }
-          return;
-        }
-        l = TO_LENGTH(l);
-        if (intOffset + l > %_TypedArrayGetLength(this)) {
-          throw %make_range_error(kTypedArraySetSourceTooLarge);
-        }
-        %_TypedArraySetFromArrayLike(this, obj, l, intOffset);
-        return;
-    }
+    // TODO(franzih): Migrate this to a proper builtin.
+    %_TypedArrayPrototypeSet(this, obj, offset);
   },
   1  /* Set function length. */
 );

src/runtime/runtime.h

@@ -623,9 +623,7 @@ namespace internal {
   F(ArrayBufferViewWasNeutered, 1, 1)    \
   F(TypedArrayGetLength, 1, 1)           \
   F(TypedArrayGetBuffer, 1, 1)           \
-  F(TypedArraySetFromArrayLike, 4, 1)    \
-  F(TypedArraySetFromOverlapping, 3, 1)  \
-  F(TypedArraySetFastCases, 3, 1)        \
+  F(TypedArrayPrototypeSet, 3, 1)        \
   F(TypedArraySortFast, 1, 1)            \
   F(TypedArrayMaxSizeInHeap, 0, 1)       \
   F(IsTypedArray, 1, 1)                  \