deps: V8: backport 1d3362c55396

Original commit message:

    [float16array] Turn flag on by default

    Float16Array has shipped in blink since M135. It is unlikely it'll
    unship by now, so turn the flag on by default.

    Bug: 42203953
    Change-Id: Ibd9de407b8810dd7bcdb46194fe04fc290ff8fb8
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/6513988
    Reviewed-by: Rezvan Mahdavi Hezaveh <[email protected]>
    Commit-Queue: Shu-yu Guo <[email protected]>
    Cr-Commit-Position: refs/heads/main@{#100104}

Refs: v8/v8@1d3362c
Co-authored-by: Michaël Zasso <[email protected]>
PR-URL: #58230
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
PR-URL: #58064
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
Reviewed-By: Paolo Insogna <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>

Author: 2 people

common.gypi

@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.11',
+    'v8_embedder_string': '-node.12',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/flags/flag-definitions.h

@@ -294,9 +294,7 @@ DEFINE_BOOL(js_shipping, true, "enable all shipped JavaScript features")
 
 // Features that are complete (but still behind the --harmony flag).
 #define HARMONY_STAGED_BASE(V)
-#define JAVASCRIPT_STAGED_FEATURES_BASE(V)                           \
-  V(js_float16array,                                                 \
-    "Float16Array, Math.f16round, DataView.getFloat16, DataView.setFloat16")
+#define JAVASCRIPT_STAGED_FEATURES_BASE(V)
 
 #ifdef V8_INTL_SUPPORT
 #define HARMONY_STAGED(V)                    \
@@ -320,7 +318,9 @@ DEFINE_BOOL(js_shipping, true, "enable all shipped JavaScript features")
   V(js_atomics_pause, "Atomics.pause")                                 \
   V(js_error_iserror, "Error.isError")                                 \
   V(js_regexp_escape, "RegExp.escape")                                 \
-  V(js_explicit_resource_management, "explicit resource management")
+  V(js_explicit_resource_management, "explicit resource management")   \
+  V(js_float16array,                                                   \
+    "Float16Array, Math.f16round, DataView.getFloat16, DataView.setFloat16")
 
 #ifdef V8_INTL_SUPPORT
 #define HARMONY_SHIPPING(V) HARMONY_SHIPPING_BASE(V)

deps/v8/src/init/bootstrapper.cc

@@ -5210,6 +5210,11 @@ DirectHandle<JSFunction> Genesis::InstallTypedArray(
           GetCorrespondingRabGsabElementsKind(elements_kind), 0);
   rab_gsab_initial_map->SetConstructor(*result);
 
+  if (rab_gsab_initial_map_index == Context::RAB_GSAB_FLOAT16_ARRAY_MAP_INDEX &&
+      v8_flags.js_float16array) {
+    LOG(isolate(), MapDetails(*rab_gsab_initial_map));
+  }
+
   native_context()->set(rab_gsab_initial_map_index, *rab_gsab_initial_map,
                         UPDATE_WRITE_BARRIER, kReleaseStore);
   Map::SetPrototype(isolate(), rab_gsab_initial_map, prototype);

deps/v8/test/test262/test262.status

@@ -2431,7 +2431,6 @@
   'staging/sm/Temporal/PlainMonthDay/from-coptic': [FAIL],
   'staging/sm/Temporal/PlainMonthDay/from-gregory': [FAIL],
   'staging/sm/Temporal/PlainMonthDay/result-not-after-1972-dec-31': [FAIL],
-  'staging/sm/Math/f16round': [FAIL],
   'staging/sm/RegExp/unicode-ignoreCase': [FAIL],
   'staging/sm/String/string-code-point-upper-lower-mapping': [FAIL],
   'staging/sm/String/string-upper-lower-mapping': [FAIL],
@@ -2442,13 +2441,10 @@
   'staging/sm/TypedArray/prototype-constructor-identity': [FAIL],
   'staging/sm/TypedArray/set-detached-bigint': [FAIL],
   'staging/sm/TypedArray/seal-and-freeze': [FAIL],
-  'staging/sm/TypedArray/sort-negative-nan': [FAIL],
-  'staging/sm/TypedArray/sort_small': [FAIL],
   'staging/sm/TypedArray/test-integrity-level': [FAIL],
   'staging/sm/TypedArray/test-integrity-level-detached': [FAIL],
   'staging/sm/TypedArray/toReversed-detached': [FAIL],
   'staging/sm/TypedArray/toSorted-detached': [FAIL],
-  'staging/sm/TypedArray/toString': [FAIL],
   'staging/sm/TypedArray/with': [FAIL],
   'staging/sm/TypedArray/with-detached': [FAIL],
 }],