Consolidate runtime helpers (X86Base, Interlocked, Buffer) across CoreCLR and NativeAOT#122791

Merged

jkotas merged 52 commits intomainfrom

copilot/move-cpuidex-qcall-implementation

Jan 2, 2026

Commits on Dec 31, 2025

Initial plan
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Move X86Base._cpuidex QCall implementation to shared location

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jkotas
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Fix build errors: update csproj files and include CommonMacros.h for NativeAOT

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Update src/coreclr/runtime/MiscNativeHelpers.cpp
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Update src/coreclr/runtime/MiscNativeHelpers.cpp
jkotas
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Remove extra blank lines in MiscHelpers.cpp and fix NativeAOT build

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Move Interlocked_MemoryBarrierProcessWide, Buffer_Clear, and Buffer_MemMove to shared MiscNativeHelpers

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Rename __cpuidex to CpuId to match public method name

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Rename __cpuidex to CpuId in Mono implementation to fix build breaks

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Move Buffer and Interlocked QCall declarations to shared files, create NativeAOT common.h

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Rename __cpuidex to CpuId in Mono native implementation

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Update src/coreclr/nativeaot/Runtime/common.h
jkotas
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Update src/coreclr/runtime/MiscNativeHelpers.cpp
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Revert changes to src/coreclr/gc/env/common.h

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Delete INLINE macro definition from CommonMacros.h

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Move MemmoveInternal and ZeroMemoryInternal to SpanHelpers.ByteMemOps.cs

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Replace Buffer QCalls with direct memset/memmove calls and fix ZeroMemory macro

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Update src/coreclr/vm/comutilnative.cpp
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Apply suggestions from code review
jkotas
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Apply suggestions from code review
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Rename ZeroMemoryInternal to ZeroMemoryNative and MemmoveInternal to MemmoveNative

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Update ZeroMemoryNative to use Unsafe.WriteUnaligned and Block16

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Fix Mono icall mappings and suppress CS3016 warnings

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Apply suggestions from code review
jkotas
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Apply suggestions from code review
jkotas
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Update src/libraries/System.Private.CoreLib/src/System/SpanHelpers.ByteMemOps.cs
jkotas
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Delete ZeroMemoryNative and MemmoveNative from Mono Buffer.Mono.cs

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Add Mono-specific memmove/memset/CpuId implementations and consolidate X86Base

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Update src/libraries/System.Private.CoreLib/src/System/SpanHelpers.ByteMemOps.cs
jkotas
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Update src/libraries/System.Private.CoreLib/src/System/SpanHelpers.ByteMemOps.cs
jkotas
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Update src/libraries/System.Private.CoreLib/src/System/SpanHelpers.ByteMemOps.cs
jkotas
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Apply suggestions from code review
jkotas
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Rename Mono icalls to ves_icall_System_SpanHelpers_* and update signatures

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Change Mono memmove/memset pointer arguments to void* to match native signatures

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Change non-Mono memmove/memset pointer arguments to void*

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Fix NativeAOT build breaks in CommonMacros.h and PalUnix.cpp

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Delete OS_PAGE_SIZE and related page size functions

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Add common.h as first include to fix NativeAOT build breaks

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Delete Range.h and AllocHeap::Contains method

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Update src/coreclr/nativeaot/Runtime/allocheap.h
jkotas
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Update src/coreclr/nativeaot/Runtime/common.h
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Update src/coreclr/nativeaot/Runtime/common.h
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Fix THUNKS_MAP_SIZE macro to cast OS_PAGE_SIZE to int

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Update src/coreclr/nativeaot/Runtime/ThunksMapping.cpp
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Add int casts to RhpGetNumThunkBlocksPerMapping and RhpGetNumThunksPerBlock

Copilot
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jkotas
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Commits on Jan 1, 2026