deps: update V8 to 10.9.194.4

PR-URL: #45579
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: anonrig

deps/v8/.ycm_extra_conf.py

@@ -42,7 +42,6 @@
 # Flags from YCM's default config.
 flags = [
 '-DUSE_CLANG_COMPLETER',
-'-std=gnu++14',
 '-x',
 'c++',
 ]
@@ -143,25 +142,27 @@ def GetClangCommandFromNinjaForFilename(v8_root, filename):
   # Parse flags that are important for YCM's purposes.
   for flag in clang_line.split(' '):
     if flag.startswith('-I'):
-      # Relative paths need to be resolved, because they're relative to the
-      # output dir, not the source.
-      if flag[2] == '/':
-        v8_flags.append(flag)
-      else:
-        abs_path = os.path.normpath(os.path.join(out_dir, flag[2:]))
-        v8_flags.append('-I' + abs_path)
-    elif flag.startswith('-std'):
+      v8_flags.append(MakeIncludePathAbsolute(flag, "-I", out_dir))
+    elif flag.startswith('-isystem'):
+      v8_flags.append(MakeIncludePathAbsolute(flag, "-isystem", out_dir))
+    elif flag.startswith('-std') or flag.startswith(
+        '-pthread') or flag.startswith('-no'):
       v8_flags.append(flag)
-    elif flag.startswith('-') and flag[1] in 'DWFfmO':
-      if flag == '-Wno-deprecated-register' or flag == '-Wno-header-guard':
-        # These flags causes libclang (3.3) to crash. Remove it until things
-        # are fixed.
-        continue
+    elif flag.startswith('-') and flag[1] in 'DWFfmgOX':
       v8_flags.append(flag)
-
   return v8_flags
 
 
+def MakeIncludePathAbsolute(flag, prefix, out_dir):
+  # Relative paths need to be resolved, because they're relative to the
+  # output dir, not the source.
+  if flag[len(prefix)] == '/':
+    return flag
+  else:
+    abs_path = os.path.normpath(os.path.join(out_dir, flag[len(prefix):]))
+    return prefix + abs_path
+
+
 def FlagsForFile(filename):
   """This is the main entry point for YCM. Its interface is fixed.
 
@@ -180,3 +181,9 @@ def FlagsForFile(filename):
     'flags': final_flags,
     'do_cache': True
   }
+
+
+def Settings(**kwargs):
+  if kwargs['language'] == 'cfamily':
+    return FlagsForFile(kwargs['filename'])
+  return {}

deps/v8/AUTHORS

@@ -114,6 +114,7 @@ Fedor Indutny <fedor@indutny.com>
 Felix Geisendörfer <haimuiba@gmail.com>
 Feng Yu <f3n67u@gmail.com>
 Filipe David Manana <fdmanana@gmail.com>
+Frank Lemanschik <frank@dspeed.eu>
 Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
 Gao Sheng <gaosheng08@meituan.com>
 Geoffrey Garside <ggarside@gmail.com>
@@ -152,6 +153,7 @@ Jiaxun Yang <jiaxun.yang@flygoat.com>
 Joel Stanley <joel@jms.id.au>
 Johan Bergström <johan@bergstroem.nu>
 Jonathan Liu <net147@gmail.com>
+Juan Arboleda <soyjuanarbol@gmail.com>
 Julien Brianceau <jbriance@cisco.com>
 JunHo Seo <sejunho@gmail.com>
 Junha Park <jpark3@scu.edu>

deps/v8/BUILD.bazel

@@ -39,6 +39,7 @@ load(":bazel/v8-non-pointer-compression.bzl", "v8_binary_non_pointer_compression
 # v8_enable_trace_baseline_exec
 # v8_enable_trace_feedback_updates
 # v8_enable_atomic_object_field_writes
+# v8_enable_conservative_stack_scanning
 # v8_enable_concurrent_marking
 # v8_enable_ignition_dispatch_counting
 # v8_enable_builtins_profiling
@@ -1381,6 +1382,8 @@ filegroup(
         "src/handles/global-handles-inl.h",
         "src/handles/global-handles.cc",
         "src/handles/global-handles.h",
+        "src/handles/traced-handles.cc",
+        "src/handles/traced-handles.h",
         "src/handles/handles-inl.h",
         "src/handles/handles.cc",
         "src/handles/handles.h",
@@ -1963,6 +1966,7 @@ filegroup(
         "src/profiler/heap-snapshot-generator-inl.h",
         "src/profiler/heap-snapshot-generator.cc",
         "src/profiler/heap-snapshot-generator.h",
+        "src/profiler/output-stream-writer.h",
         "src/profiler/profile-generator-inl.h",
         "src/profiler/profile-generator.cc",
         "src/profiler/profile-generator.h",
@@ -2664,6 +2668,8 @@ filegroup(
         "src/compiler/all-nodes.h",
         "src/compiler/allocation-builder.h",
         "src/compiler/allocation-builder-inl.h",
+        "src/compiler/backend/bitcast-elider.cc",
+        "src/compiler/backend/bitcast-elider.h",
         "src/compiler/backend/code-generator.cc",
         "src/compiler/backend/code-generator.h",
         "src/compiler/backend/code-generator-impl.h",
@@ -2887,7 +2893,7 @@ filegroup(
         "src/compiler/turboshaft/graph.h",
         "src/compiler/turboshaft/graph-visualizer.cc",
         "src/compiler/turboshaft/graph-visualizer.h",
-        "src/compiler/turboshaft/machine-optimization-assembler.h",
+        "src/compiler/turboshaft/machine-optimization-reducer.h",
         "src/compiler/turboshaft/operations.cc",
         "src/compiler/turboshaft/operations.h",
         "src/compiler/turboshaft/operation-matching.h",
@@ -2897,12 +2903,14 @@ filegroup(
         "src/compiler/turboshaft/recreate-schedule.h",
         "src/compiler/turboshaft/representations.cc",
         "src/compiler/turboshaft/representations.h",
+        "src/compiler/turboshaft/select-lowering-reducer.h",
         "src/compiler/turboshaft/sidetable.h",
         "src/compiler/turboshaft/simplify-tf-loops.cc",
         "src/compiler/turboshaft/simplify-tf-loops.h",
+        "src/compiler/turboshaft/snapshot-table.h",
         "src/compiler/turboshaft/utils.cc",
         "src/compiler/turboshaft/utils.h",
-        "src/compiler/turboshaft/value-numbering-assembler.h",
+        "src/compiler/turboshaft/value-numbering-reducer.h",
         "src/compiler/type-cache.cc",
         "src/compiler/type-cache.h",
         "src/compiler/type-narrowing-reducer.cc",
@@ -3152,16 +3160,16 @@ filegroup(
         # Note these cannot be v8_target_is_* selects because these contain
         # inline assembly that runs inside the executable. Since these are
         # linked directly into mksnapshot, they must use the actual target cpu.
-        "@v8//bazel/config:is_inline_asm_ia32": ["src/heap/base/asm/ia32/push_registers_asm.cc"],
-        "@v8//bazel/config:is_inline_asm_x64": ["src/heap/base/asm/x64/push_registers_asm.cc"],
-        "@v8//bazel/config:is_inline_asm_arm": ["src/heap/base/asm/arm/push_registers_asm.cc"],
-        "@v8//bazel/config:is_inline_asm_arm64": ["src/heap/base/asm/arm64/push_registers_asm.cc"],
-        "@v8//bazel/config:is_inline_asm_s390x": ["src/heap/base/asm/s390/push_registers_asm.cc"],
-        "@v8//bazel/config:is_inline_asm_riscv64": ["src/heap/base/asm/riscv64/push_registers_asm.cc"],
-        "@v8//bazel/config:is_inline_asm_ppc64le": ["src/heap/base/asm/ppc/push_registers_asm.cc"],
-        "@v8//bazel/config:is_msvc_asm_ia32": ["src/heap/base/asm/ia32/push_registers_masm.asm"],
-        "@v8//bazel/config:is_msvc_asm_x64": ["src/heap/base/asm/x64/push_registers_masm.asm"],
-        "@v8//bazel/config:is_msvc_asm_arm64": ["src/heap/base/asm/arm64/push_registers_masm.S"],
+        "@v8//bazel/config:is_inline_asm_ia32": ["src/heap/base/asm/ia32/save_registers_asm.cc"],
+        "@v8//bazel/config:is_inline_asm_x64": ["src/heap/base/asm/x64/save_registers_asm.cc"],
+        "@v8//bazel/config:is_inline_asm_arm": ["src/heap/base/asm/arm/save_registers_asm.cc"],
+        "@v8//bazel/config:is_inline_asm_arm64": ["src/heap/base/asm/arm64/save_registers_asm.cc"],
+        "@v8//bazel/config:is_inline_asm_s390x": ["src/heap/base/asm/s390/save_registers_asm.cc"],
+        "@v8//bazel/config:is_inline_asm_riscv64": ["src/heap/base/asm/riscv64/save_registers_asm.cc"],
+        "@v8//bazel/config:is_inline_asm_ppc64le": ["src/heap/base/asm/ppc/save_registers_asm.cc"],
+        "@v8//bazel/config:is_msvc_asm_ia32": ["src/heap/base/asm/ia32/save_registers_masm.asm"],
+        "@v8//bazel/config:is_msvc_asm_x64": ["src/heap/base/asm/x64/save_registers_masm.asm"],
+        "@v8//bazel/config:is_msvc_asm_arm64": ["src/heap/base/asm/arm64/save_registers_masm.S"],
     }),
 )
 

deps/v8/BUILD.gn

@@ -1460,6 +1460,10 @@ config("toolchain") {
       "/wd4715",  # 'function' : not all control paths return a value'
                   # MSVC does not analyze switch (enum) for completeness.
     ]
+
+    # TODO(https://crbug.com/1377771): Keep MSVC on C++17 until source code is
+    # made compatible with C++20.
+    cflags_cc = [ "/std:c++17" ]
   }
 
   if (!is_clang && !is_win) {
@@ -1476,6 +1480,11 @@ config("toolchain") {
       # Disable gcc warnings for using enum constant in boolean context.
       # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97266
       "-Wno-int-in-bool-context",
+
+      # Disable gcc deprecation warnings, which are firing on implicit capture
+      # of `this` in capture-by-value lambdas and preventing a build roll which
+      # enables C++20 (see https://crbug.com/1374227).
+      "-Wno-deprecated",
     ]
   }
 
@@ -2268,6 +2277,8 @@ action("v8_dump_build_config") {
     "v8_current_cpu=\"$v8_current_cpu\"",
     "v8_enable_atomic_object_field_writes=" +
         "$v8_enable_atomic_object_field_writes",
+    "v8_enable_conservative_stack_scanning=" +
+        "$v8_enable_conservative_stack_scanning",
     "v8_enable_concurrent_marking=$v8_enable_concurrent_marking",
     "v8_enable_single_generation=$v8_enable_single_generation",
     "v8_enable_i18n_support=$v8_enable_i18n_support",
@@ -2803,6 +2814,7 @@ v8_header_set("v8_internal_headers") {
     "src/compiler/all-nodes.h",
     "src/compiler/allocation-builder-inl.h",
     "src/compiler/allocation-builder.h",
+    "src/compiler/backend/bitcast-elider.h",
     "src/compiler/backend/code-generator-impl.h",
     "src/compiler/backend/code-generator.h",
     "src/compiler/backend/frame-elider.h",
@@ -2923,16 +2935,18 @@ v8_header_set("v8_internal_headers") {
     "src/compiler/turboshaft/graph-builder.h",
     "src/compiler/turboshaft/graph-visualizer.h",
     "src/compiler/turboshaft/graph.h",
-    "src/compiler/turboshaft/machine-optimization-assembler.h",
+    "src/compiler/turboshaft/machine-optimization-reducer.h",
     "src/compiler/turboshaft/operation-matching.h",
     "src/compiler/turboshaft/operations.h",
     "src/compiler/turboshaft/optimization-phase.h",
     "src/compiler/turboshaft/recreate-schedule.h",
     "src/compiler/turboshaft/representations.h",
+    "src/compiler/turboshaft/select-lowering-reducer.h",
     "src/compiler/turboshaft/sidetable.h",
     "src/compiler/turboshaft/simplify-tf-loops.h",
+    "src/compiler/turboshaft/snapshot-table.h",
     "src/compiler/turboshaft/utils.h",
-    "src/compiler/turboshaft/value-numbering-assembler.h",
+    "src/compiler/turboshaft/value-numbering-reducer.h",
     "src/compiler/type-cache.h",
     "src/compiler/type-narrowing-reducer.h",
     "src/compiler/typed-optimization.h",
@@ -3024,6 +3038,7 @@ v8_header_set("v8_internal_headers") {
     "src/handles/maybe-handles.h",
     "src/handles/persistent-handles.h",
     "src/handles/shared-object-conveyor-handles.h",
+    "src/handles/traced-handles.h",
     "src/heap/allocation-observer.h",
     "src/heap/allocation-result.h",
     "src/heap/allocation-stats.h",
@@ -3422,6 +3437,7 @@ v8_header_set("v8_internal_headers") {
     "src/profiler/heap-profiler.h",
     "src/profiler/heap-snapshot-generator-inl.h",
     "src/profiler/heap-snapshot-generator.h",
+    "src/profiler/output-stream-writer.h",
     "src/profiler/profile-generator-inl.h",
     "src/profiler/profile-generator.h",
     "src/profiler/profiler-listener.h",
@@ -4041,6 +4057,7 @@ v8_compiler_sources = [
   "src/compiler/access-info.cc",
   "src/compiler/add-type-assertions-reducer.cc",
   "src/compiler/all-nodes.cc",
+  "src/compiler/backend/bitcast-elider.cc",
   "src/compiler/backend/code-generator.cc",
   "src/compiler/backend/frame-elider.cc",
   "src/compiler/backend/gap-resolver.cc",
@@ -4429,6 +4446,7 @@ v8_source_set("v8_base_without_compiler") {
     "src/handles/local-handles.cc",
     "src/handles/persistent-handles.cc",
     "src/handles/shared-object-conveyor-handles.cc",
+    "src/handles/traced-handles.cc",
     "src/heap/allocation-observer.cc",
     "src/heap/array-buffer-sweeper.cc",
     "src/heap/base-space.cc",
@@ -4737,6 +4755,7 @@ v8_source_set("v8_base_without_compiler") {
 
   if (v8_enable_maglev) {
     sources += [
+      "src/maglev/maglev-assembler.cc",
       "src/maglev/maglev-code-generator.cc",
       "src/maglev/maglev-compilation-info.cc",
       "src/maglev/maglev-compilation-unit.cc",
@@ -5745,31 +5764,31 @@ v8_source_set("v8_heap_base") {
 
   if (is_clang || !is_win) {
     if (current_cpu == "x64") {
-      sources += [ "src/heap/base/asm/x64/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/x64/save_registers_asm.cc" ]
     } else if (current_cpu == "x86") {
-      sources += [ "src/heap/base/asm/ia32/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/ia32/save_registers_asm.cc" ]
     } else if (current_cpu == "arm") {
-      sources += [ "src/heap/base/asm/arm/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/arm/save_registers_asm.cc" ]
     } else if (current_cpu == "arm64") {
-      sources += [ "src/heap/base/asm/arm64/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/arm64/save_registers_asm.cc" ]
     } else if (current_cpu == "ppc64") {
-      sources += [ "src/heap/base/asm/ppc/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/ppc/save_registers_asm.cc" ]
     } else if (current_cpu == "s390x") {
-      sources += [ "src/heap/base/asm/s390/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/s390/save_registers_asm.cc" ]
     } else if (current_cpu == "mips64el") {
-      sources += [ "src/heap/base/asm/mips64/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/mips64/save_registers_asm.cc" ]
     } else if (current_cpu == "loong64") {
-      sources += [ "src/heap/base/asm/loong64/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/loong64/save_registers_asm.cc" ]
     } else if (current_cpu == "riscv64" || current_cpu == "riscv32") {
-      sources += [ "src/heap/base/asm/riscv/push_registers_asm.cc" ]
+      sources += [ "src/heap/base/asm/riscv/save_registers_asm.cc" ]
     }
   } else if (is_win) {
     if (current_cpu == "x64") {
-      sources += [ "src/heap/base/asm/x64/push_registers_masm.asm" ]
+      sources += [ "src/heap/base/asm/x64/save_registers_masm.asm" ]
     } else if (current_cpu == "x86") {
-      sources += [ "src/heap/base/asm/ia32/push_registers_masm.asm" ]
+      sources += [ "src/heap/base/asm/ia32/save_registers_masm.asm" ]
     } else if (current_cpu == "arm64") {
-      sources += [ "src/heap/base/asm/arm64/push_registers_masm.S" ]
+      sources += [ "src/heap/base/asm/arm64/save_registers_masm.S" ]
     }
   }