deps: patch V8 to 10.7.193.20

Refs: v8/v8@10.7.193.16...10.7.193.20

Author: targos

deps/v8/DEPS

@@ -37,7 +37,6 @@ vars = {
   'download_jsfunfuzz': False,
   'download_prebuilt_bazel': False,
   'check_v8_header_includes': False,
-  'checkout_reclient': False,
 
   # By default, download the fuchsia sdk from the public sdk directory.
   'fuchsia_sdk_cipd_prefix': 'fuchsia/sdk/gn/',
@@ -143,7 +142,7 @@ deps = {
       }
     ],
     'dep_type': 'cipd',
-    'condition': '(host_os == "linux" or host_os == "mac" or host_os == "win") and checkout_reclient',
+    'condition': '(host_os == "linux" or host_os == "mac" or host_os == "win") and host_cpu != "s390" and host_cpu != "ppc"',
   },
   'test/benchmarks/data':
     Var('chromium_url') + '/v8/deps/third_party/benchmarks.git' + '@' + '05d7188267b4560491ff9155c5ee13e207ecd65f',

deps/v8/include/v8-version.h

@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 10
 #define V8_MINOR_VERSION 7
 #define V8_BUILD_NUMBER 193
-#define V8_PATCH_LEVEL 16
+#define V8_PATCH_LEVEL 20
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/v8/src/compiler/access-info.cc

@@ -451,9 +451,15 @@ PropertyAccessInfo AccessInfoFactory::ComputeDataFieldAccessInfo(
             map, descriptor, details_representation));
   } else if (details_representation.IsHeapObject()) {
     if (descriptors_field_type->IsNone()) {
-      // Store is not safe if the field type was cleared.
-      if (access_mode == AccessMode::kStore) {
-        return Invalid();
+      switch (access_mode) {
+        case AccessMode::kStore:
+        case AccessMode::kStoreInLiteral:
+        case AccessMode::kDefine:
+          // Store is not safe if the field type was cleared.
+          return Invalid();
+        case AccessMode::kLoad:
+        case AccessMode::kHas:
+          break;
       }
 
       // The field type was cleared by the GC, so we don't know anything

deps/v8/src/wasm/graph-builder-interface.cc

@@ -88,6 +88,7 @@ class WasmGraphBuildingInterface {
   struct TryInfo : public ZoneObject {
     SsaEnv* catch_env;
     TFNode* exception = nullptr;
+    bool first_catch = true;
 
     bool might_throw() const { return exception != nullptr; }
 
@@ -936,6 +937,10 @@ class WasmGraphBuildingInterface {
 
     TFNode* exception = block->try_info->exception;
     SetEnv(block->try_info->catch_env);
+    if (block->try_info->first_catch) {
+      LoadContextIntoSsa(ssa_env_, decoder);
+      block->try_info->first_catch = false;
+    }
 
     TFNode* if_catch = nullptr;
     TFNode* if_no_catch = nullptr;
@@ -1013,6 +1018,9 @@ class WasmGraphBuildingInterface {
     }
 
     SetEnv(block->try_info->catch_env);
+    if (block->try_info->first_catch) {
+      LoadContextIntoSsa(ssa_env_, decoder);
+    }
   }
 
   void AtomicOp(FullDecoder* decoder, WasmOpcode opcode,