deps: update V8 to 7.1.302.28

PR-URL: https://github.com/nodejs/node/pull/23423
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

1 files changed, 24 insertions, 24 deletions

diff --git a/deps/v8/src/base/macros.h b/deps/v8/src/base/macros.h
index 081018cc2e..8a2efe61a9 100644
--- a/deps/v8/src/base/macros.h
+++ b/deps/v8/src/base/macros.h
@@ -14,6 +14,9 @@
 // No-op macro which is used to work around MSVC's funky VA_ARGS support.
 #define EXPAND(x) x
 
+// This macro does nothing. That's all.
+#define NOTHING(...)
+
 // TODO(all) Replace all uses of this macro with C++'s offsetof. To do that, we
 // have to make sure that only standard-layout types and simple field
 // designators are used.
@@ -195,8 +198,9 @@ V8_INLINE Dest bit_cast(Source const& source) {
 #define V8_IMMEDIATE_CRASH() ((void(*)())0)()
 #endif
 
-
-// TODO(all) Replace all uses of this macro with static_assert, remove macro.
+// A convenience wrapper around static_assert without a string message argument.
+// Once C++17 becomes the default, this macro can be removed in favor of the
+// new static_assert(condition) overload.
 #define STATIC_ASSERT(test) static_assert(test, #test)
 
 namespace v8 {
@@ -276,6 +280,12 @@ struct Use {
     (void)unused_tmp_array_for_use_macro;                          \
   } while (false)
 
+// Evaluate the instantiations of an expression with parameter packs.
+// Since USE has left-to-right evaluation order of it's arguments,
+// the parameter pack is iterated from left to right and side effects
+// have defined behavior.
+#define ITERATE_PACK(...) USE(0, ((__VA_ARGS__), 0)...)
+
 }  // namespace base
 }  // namespace v8
 
@@ -346,47 +356,37 @@ V8_INLINE A implicit_cast(A x) {
 //      write V8_2PART_UINT64_C(0x12345678,90123456);
 #define V8_2PART_UINT64_C(a, b) (((static_cast<uint64_t>(a) << 32) + 0x##b##u))
 
-
-// Compute the 0-relative offset of some absolute value x of type T.
-// This allows conversion of Addresses and integral types into
-// 0-relative int offsets.
-template <typename T>
-constexpr inline intptr_t OffsetFrom(T x) {
-  return x - static_cast<T>(0);
-}
-
-
-// Compute the absolute value of type T for some 0-relative offset x.
-// This allows conversion of 0-relative int offsets into Addresses and
-// integral types.
-template <typename T>
-constexpr inline T AddressFrom(intptr_t x) {
-  return static_cast<T>(static_cast<T>(0) + x);
-}
-
-
 // Return the largest multiple of m which is <= x.
 template <typename T>
 inline T RoundDown(T x, intptr_t m) {
+  STATIC_ASSERT(std::is_integral<T>::value);
   // m must be a power of two.
   DCHECK(m != 0 && ((m & (m - 1)) == 0));
-  return AddressFrom<T>(OffsetFrom(x) & -m);
+  return x & -m;
 }
 template <intptr_t m, typename T>
 constexpr inline T RoundDown(T x) {
+  STATIC_ASSERT(std::is_integral<T>::value);
   // m must be a power of two.
   STATIC_ASSERT(m != 0 && ((m & (m - 1)) == 0));
-  return AddressFrom<T>(OffsetFrom(x) & -m);
+  return x & -m;
 }
 
 // Return the smallest multiple of m which is >= x.
 template <typename T>
 inline T RoundUp(T x, intptr_t m) {
+  STATIC_ASSERT(std::is_integral<T>::value);
   return RoundDown<T>(static_cast<T>(x + m - 1), m);
 }
 template <intptr_t m, typename T>
 constexpr inline T RoundUp(T x) {
-  return RoundDown<m, T>(static_cast<T>(x + m - 1));
+  STATIC_ASSERT(std::is_integral<T>::value);
+  return RoundDown<m, T>(static_cast<T>(x + (m - 1)));
+}
+
+template <typename T, typename U>
+inline bool IsAligned(T value, U alignment) {
+  return (value & (alignment - 1)) == 0;
 }
 
 inline void* AlignedAddress(void* address, size_t alignment) {