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diff --git a/contrib/llvm-project/compiler-rt/lib/scudo/standalone/allocator_config.h b/contrib/llvm-project/compiler-rt/lib/scudo/standalone/allocator_config.h
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+++ b/contrib/llvm-project/compiler-rt/lib/scudo/standalone/allocator_config.h
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+//===-- allocator_config.h --------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SCUDO_ALLOCATOR_CONFIG_H_
+#define SCUDO_ALLOCATOR_CONFIG_H_
+
+#include "combined.h"
+#include "common.h"
+#include "condition_variable.h"
+#include "flags.h"
+#include "primary32.h"
+#include "primary64.h"
+#include "secondary.h"
+#include "size_class_map.h"
+#include "tsd_exclusive.h"
+#include "tsd_shared.h"
+
+// To import a custom configuration, define `SCUDO_USE_CUSTOM_CONFIG` and
+// aliasing the `Config` like:
+//
+// namespace scudo {
+//   // The instance of Scudo will be initiated with `Config`.
+//   typedef CustomConfig Config;
+//   // Aliasing as default configuration to run the tests with this config.
+//   typedef CustomConfig DefaultConfig;
+// } // namespace scudo
+//
+// Put them in the header `custom_scudo_config.h` then you will be using the
+// custom configuration and able to run all the tests as well.
+#ifdef SCUDO_USE_CUSTOM_CONFIG
+#include "custom_scudo_config.h"
+#endif
+
+namespace scudo {
+
+// Scudo uses a structure as a template argument that specifies the
+// configuration options for the various subcomponents of the allocator. See the
+// following configs as examples and check `allocator_config.def` for all the
+// available options.
+
+#ifndef SCUDO_USE_CUSTOM_CONFIG
+
+// Default configurations for various platforms. Note this is only enabled when
+// there's no custom configuration in the build system.
+struct DefaultConfig {
+  static const bool MaySupportMemoryTagging = true;
+  template <class A> using TSDRegistryT = TSDRegistryExT<A>; // Exclusive
+
+  struct Primary {
+    using SizeClassMap = DefaultSizeClassMap;
+#if SCUDO_CAN_USE_PRIMARY64
+    static const uptr RegionSizeLog = 32U;
+    static const uptr GroupSizeLog = 21U;
+    typedef uptr CompactPtrT;
+    static const uptr CompactPtrScale = 0;
+    static const bool EnableRandomOffset = true;
+    static const uptr MapSizeIncrement = 1UL << 18;
+#else
+    static const uptr RegionSizeLog = 19U;
+    static const uptr GroupSizeLog = 19U;
+    typedef uptr CompactPtrT;
+#endif
+    static const s32 MinReleaseToOsIntervalMs = INT32_MIN;
+    static const s32 MaxReleaseToOsIntervalMs = INT32_MAX;
+  };
+#if SCUDO_CAN_USE_PRIMARY64
+  template <typename Config> using PrimaryT = SizeClassAllocator64<Config>;
+#else
+  template <typename Config> using PrimaryT = SizeClassAllocator32<Config>;
+#endif
+
+  struct Secondary {
+    struct Cache {
+      static const u32 EntriesArraySize = 32U;
+      static const u32 QuarantineSize = 0U;
+      static const u32 DefaultMaxEntriesCount = 32U;
+      static const uptr DefaultMaxEntrySize = 1UL << 19;
+      static const s32 MinReleaseToOsIntervalMs = INT32_MIN;
+      static const s32 MaxReleaseToOsIntervalMs = INT32_MAX;
+    };
+    template <typename Config> using CacheT = MapAllocatorCache<Config>;
+  };
+
+  template <typename Config> using SecondaryT = MapAllocator<Config>;
+};
+
+#endif // SCUDO_USE_CUSTOM_CONFIG
+
+struct AndroidConfig {
+  static const bool MaySupportMemoryTagging = true;
+  template <class A>
+  using TSDRegistryT = TSDRegistrySharedT<A, 8U, 2U>; // Shared, max 8 TSDs.
+
+  struct Primary {
+    using SizeClassMap = AndroidSizeClassMap;
+#if SCUDO_CAN_USE_PRIMARY64
+    static const uptr RegionSizeLog = 28U;
+    typedef u32 CompactPtrT;
+    static const uptr CompactPtrScale = SCUDO_MIN_ALIGNMENT_LOG;
+    static const uptr GroupSizeLog = 20U;
+    static const bool EnableRandomOffset = true;
+    static const uptr MapSizeIncrement = 1UL << 18;
+#else
+    static const uptr RegionSizeLog = 18U;
+    static const uptr GroupSizeLog = 18U;
+    typedef uptr CompactPtrT;
+#endif
+    static const s32 MinReleaseToOsIntervalMs = 1000;
+    static const s32 MaxReleaseToOsIntervalMs = 1000;
+  };
+#if SCUDO_CAN_USE_PRIMARY64
+  template <typename Config> using PrimaryT = SizeClassAllocator64<Config>;
+#else
+  template <typename Config> using PrimaryT = SizeClassAllocator32<Config>;
+#endif
+
+  struct Secondary {
+    struct Cache {
+      static const u32 EntriesArraySize = 256U;
+      static const u32 QuarantineSize = 32U;
+      static const u32 DefaultMaxEntriesCount = 32U;
+      static const uptr DefaultMaxEntrySize = 2UL << 20;
+      static const s32 MinReleaseToOsIntervalMs = 0;
+      static const s32 MaxReleaseToOsIntervalMs = 1000;
+    };
+    template <typename Config> using CacheT = MapAllocatorCache<Config>;
+  };
+
+  template <typename Config> using SecondaryT = MapAllocator<Config>;
+};
+
+#if SCUDO_CAN_USE_PRIMARY64
+struct FuchsiaConfig {
+  static const bool MaySupportMemoryTagging = false;
+  template <class A>
+  using TSDRegistryT = TSDRegistrySharedT<A, 8U, 4U>; // Shared, max 8 TSDs.
+
+  struct Primary {
+    using SizeClassMap = FuchsiaSizeClassMap;
+#if SCUDO_RISCV64
+    // Support 39-bit VMA for riscv-64
+    static const uptr RegionSizeLog = 28U;
+    static const uptr GroupSizeLog = 19U;
+    static const bool EnableContiguousRegions = false;
+#else
+    static const uptr RegionSizeLog = 30U;
+    static const uptr GroupSizeLog = 21U;
+#endif
+    typedef u32 CompactPtrT;
+    static const bool EnableRandomOffset = true;
+    static const uptr MapSizeIncrement = 1UL << 18;
+    static const uptr CompactPtrScale = SCUDO_MIN_ALIGNMENT_LOG;
+    static const s32 MinReleaseToOsIntervalMs = INT32_MIN;
+    static const s32 MaxReleaseToOsIntervalMs = INT32_MAX;
+  };
+  template <typename Config> using PrimaryT = SizeClassAllocator64<Config>;
+
+  struct Secondary {
+    template <typename Config> using CacheT = MapAllocatorNoCache<Config>;
+  };
+  template <typename Config> using SecondaryT = MapAllocator<Config>;
+};
+
+struct TrustyConfig {
+  static const bool MaySupportMemoryTagging = true;
+  template <class A>
+  using TSDRegistryT = TSDRegistrySharedT<A, 1U, 1U>; // Shared, max 1 TSD.
+
+  struct Primary {
+    using SizeClassMap = TrustySizeClassMap;
+    static const uptr RegionSizeLog = 28U;
+    static const uptr GroupSizeLog = 20U;
+    typedef u32 CompactPtrT;
+    static const bool EnableRandomOffset = false;
+    static const uptr MapSizeIncrement = 1UL << 12;
+    static const uptr CompactPtrScale = SCUDO_MIN_ALIGNMENT_LOG;
+    static const s32 MinReleaseToOsIntervalMs = INT32_MIN;
+    static const s32 MaxReleaseToOsIntervalMs = INT32_MAX;
+  };
+  template <typename Config> using PrimaryT = SizeClassAllocator64<Config>;
+
+  struct Secondary {
+    template <typename Config> using CacheT = MapAllocatorNoCache<Config>;
+  };
+
+  template <typename Config> using SecondaryT = MapAllocator<Config>;
+};
+#endif
+
+#ifndef SCUDO_USE_CUSTOM_CONFIG
+
+#if SCUDO_ANDROID
+typedef AndroidConfig Config;
+#elif SCUDO_FUCHSIA
+typedef FuchsiaConfig Config;
+#elif SCUDO_TRUSTY
+typedef TrustyConfig Config;
+#else
+typedef DefaultConfig Config;
+#endif
+
+#endif // SCUDO_USE_CUSTOM_CONFIG
+
+} // namespace scudo
+
+#endif // SCUDO_ALLOCATOR_CONFIG_H_