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SVE2 API for AbsoluteDifferenceAdd #115513

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jacob-crawley
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Implements the SVE2 API for AbsoluteDifferenceAdd, along with the upper and lower widening variants.

@a74nh @kunalspathak

Dependant on #115428 being merged first

@dotnet-policy-service dotnet-policy-service bot added the community-contribution Indicates that the PR has been added by a community member label May 13, 2025
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tannergooding
tannergooding reviewed May 13, 2025
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...raries/System.Private.CoreLib/src/System/Runtime/Intrinsics/Arm/Sve2.PlatformNotSupported.cs Outdated
/// svuint8_t svaba[_u8](svuint8_t op1, svuint8_t op2, svuint8_t op3)
/// UABA Ztied1.B, Zop2.B, Zop3.B
/// </summary>
public static unsafe Vector<byte> AbsoluteDifferenceAdd(Vector<byte> addend, Vector<byte> left, Vector<byte> right) { throw new PlatformNotSupportedException(); }
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None of these are using pointers, so none need the unsafe keyword

@kunalspathak kunalspathak added the arm-sve Work related to arm64 SVE/SVE2 support label May 13, 2025
This was referenced May 14, 2025
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a74nh commented May 16, 2025

Jacob, looks like this has build failures....

2025-05-14T11:17:23.8847435Z   /__w/1/s/src/coreclr/jit/hwintrinsiclistarm64sve.h:342:1: error: redefinition of enumerator 'VNF_HWI_Sve2_BitwiseClearXor'
2025-05-14T11:17:23.8851331Z     342 | HARDWARE_INTRINSIC(Sve2,          BitwiseClearXor,                                                  -1,      3,     {INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_invalid,        INS_invalid},     HW_Category_SIMD,                  HW_Flag_Scalable|HW_Flag_SpecialCodeGen|HW_Flag_HasRMWSemantics)
2025-05-14T11:17:23.8861001Z         | ^
2025-05-14T11:17:23.8861366Z   /__w/1/s/src/coreclr/jit/valuenumfuncs.h:196:112: note: expanded from macro 'HARDWARE_INTRINSIC'
2025-05-14T11:17:23.8861743Z     196 | #define HARDWARE_INTRINSIC(isa, name, size, argCount, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, category, flag) \
2025-05-14T11:17:23.8862223Z         |                                                                                                                ^
2025-05-14T11:17:23.8862479Z   /__w/1/s/src/coreclr/jit/valuenum.h:172:73: note: expanded from macro '\
2025-05-14T11:17:23.8862776Z   ValueNumFuncDef'
2025-05-14T11:17:23.8864280Z     172 | #define ValueNumFuncDef(nm, arity, commute, knownNonNull, sharedStatic) VNF_##nm,
2025-05-14T11:17:23.8876120Z         |                                                                         ^
2025-05-14T11:17:23.8877620Z   <scratch space>:143:1: note: expanded from here
2025-05-14T11:17:23.8878806Z     143 | VNF_HWI_Sve2_BitwiseClearXor
2025-05-14T11:17:23.8879445Z         | ^
2025-05-14T11:17:23.8879830Z   /__w/1/s/src/coreclr/jit/hwintrinsiclistarm64sve.h:312:1: note: previous definition is here
2025-05-14T11:17:23.8889611Z     312 | HARDWARE_INTRINSIC(Sve2,          BitwiseClearXor,                                                  -1,      3,     {INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_sve_bcax,       INS_invalid,        INS_invalid},     HW_Category_SIMD,                  HW_Flag_Scalable|HW_Flag_SpecialCodeGen|HW_Flag_HasRMWSemantics)
2025-05-14T11:17:23.8894273Z         | ^
2025-05-14T11:17:23.8895037Z   /__w/1/s/src/coreclr/jit/valuenumfuncs.h:196:112: note: expanded from macro 'HARDWARE_INTRINSIC'
2025-05-14T11:17:23.8905671Z     196 | #define HARDWARE_INTRINSIC(isa, name, size, argCount, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, category, flag) \
2025-05-14T11:17:23.8926180Z         |                                                                                                                ^
2025-05-14T11:17:23.8926959Z   /__w/1/s/src/coreclr/jit/valuenum.h:172:73: note: expanded from macro '\
2025-05-14T11:17:23.8927814Z   ValueNumFuncDef'
2025-05-14T11:17:23.8928641Z     172 | #define ValueNumFuncDef(nm, arity, commute, knownNonNull, sharedStatic) VNF_##nm,
2025-05-14T11:17:23.8928962Z         |                                                                         ^
2025-05-14T11:17:23.8929229Z   <scratch space>:71:1: note: expanded from here
2025-05-14T11:17:23.8929861Z      71 | VNF_HWI_Sve2_BitwiseClearXor
2025-05-14T11:17:23.8930141Z         | ^
2025-05-14T11:17:24.4676298Z   2 errors generated.
2025-05-14T11:17:24.4760641Z   make[3]: *** [jit/CMakeFiles/clrjit_universal_

@jacob-crawley
Fix rebase error that defined BitwiseClearXor twice
01376a8 
Change-Id: Icd70d0f51c902c54c8f10aa45ea8e6e0ca4f011c
@jacob-crawley
Removing the 'unsafe' keyword from the intrinsic definitions
476bce3 
Change-Id: I1ecc680afa0d15dc701395cd83b383b1282fcdc2
This was referenced May 19, 2025
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@jacob-crawley jacob-crawley marked this pull request as ready for review May 20, 2025 08:37
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@jacob-crawley @a74nh @tannergooding @kunalspathak