ARM64-SVE: LeadingSignCount, LeadingZeroCount, PopCount #102548
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Note regarding the |
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I get some failures in the stress test due to In the meantime, marking this as ready for review. @dotnet/arm64-contrib @kunalspathak |
| HARDWARE_INTRINSIC(Sve, FusedMultiplySubtract, -1, -1, false, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_fmls, INS_sve_fmls}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation|HW_Flag_FmaIntrinsic|HW_Flag_SpecialCodeGen) | ||
| HARDWARE_INTRINSIC(Sve, FusedMultiplySubtractBySelectedScalar, -1, 4, true, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_fmls, INS_sve_fmls}, HW_Category_SIMDByIndexedElement, HW_Flag_Scalable|HW_Flag_HasImmediateOperand|HW_Flag_HasRMWSemantics|HW_Flag_FmaIntrinsic|HW_Flag_LowVectorOperation) | ||
| HARDWARE_INTRINSIC(Sve, FusedMultiplySubtractNegated, -1, -1, false, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_sve_fnmls, INS_sve_fnmls}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_EmbeddedMaskedOperation|HW_Flag_HasRMWSemantics|HW_Flag_LowMaskedOperation|HW_Flag_FmaIntrinsic|HW_Flag_SpecialCodeGen) | ||
| HARDWARE_INTRINSIC(Sve, LeadingSignCount, -1, -1, false, {INS_sve_cls, INS_invalid, INS_sve_cls, INS_invalid, INS_sve_cls, INS_invalid, INS_sve_cls, INS_invalid, INS_invalid, INS_invalid}, HW_Category_SIMD, HW_Flag_Scalable|HW_Flag_BaseTypeFromFirstArg|HW_Flag_EmbeddedMaskedOperation) |
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these 2 are missing the flag for HW_Flag_LowMaskedOperation
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I really did think I had added that! Thanks for fixing.
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/ba-g Issues seems to be #100174 |
steveharter
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May 28, 2024
* ARM64-SVE: LeadingSignCount + LeadingZeroCount * Add popcount * Fix PlatformNotSupported * Fix summary headers for popcount * Use SveSimpleVecOpTest for unsigned popcounts * Add HW_Flag_LowMaskedOperation() to LeadingSignCount() and LeadingZeroCount() --------- Co-authored-by: Kunal Pathak <[email protected]>
Ruihan-Yin
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May 30, 2024
* ARM64-SVE: LeadingSignCount + LeadingZeroCount * Add popcount * Fix PlatformNotSupported * Fix summary headers for popcount * Use SveSimpleVecOpTest for unsigned popcounts * Add HW_Flag_LowMaskedOperation() to LeadingSignCount() and LeadingZeroCount() --------- Co-authored-by: Kunal Pathak <[email protected]>
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_SveMasklessUnaryOpTestTemplate is the same as _SveUnaryOpTestTemplate, but without the Conditional Select tests.
For all these, the API method has a different Op1 and Return type and so does not fit into a standard conditional select test.
For LeadingSignCount, LeadingZeroCount the underlying instruction does not have a mask, so can't be optimised using conditional select.