[SM6.10][specs/769] Update DXIL Op Defs

[V-FEXrt]

microsoft/hlsl-specs#769 updated the signatures for the linalg DXIL ops. Update the implementation to reflect that

• removes create matrix dxil op
• renames the reserved ops to match the rest of the reserved ops
• Update the ops to they return a matrix instead of accepting it as a parameter
• updates the matrix type from i32 to object

utils/hct/hctdb.py is the interesting changes, everything else is generated code

[Copilot]

Pull request overview

This PR updates the DXIL operation definitions for linear algebra operations to align with the SM6.10 spec changes (microsoft/hlsl-specs#769). The changes modify how matrix operations handle matrix types, transitioning from i32 reference handles to proper object types and changing operations to return matrices instead of accepting them as output parameters.

Changes:

• Removed the CreateMatrix DXIL operation (no longer needed)
• Renamed reserved operations from LinAlgMatrixReserved* to ReservedD* for consistency
• Updated all matrix operations to return matrix objects instead of accepting them as in/out parameters
• Changed matrix parameter types from i32 handles to object type 'o'

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
utils/hct/hctdb.py	Updated DXIL operation definitions: removed CreateMatrix, added ReservedD0, updated all matrix ops to use object types and return matrices
lib/DXIL/DxilOperations.cpp	Generated code reflecting operation signature changes, overload type handling, and reserved op renaming
include/dxc/DXIL/DxilInstructions.h	Generated instruction wrapper structs with updated parameter accessors and argument counts
include/dxc/DXIL/DxilConstants.h	Updated OpCode enums and OpCodeClass count to reflect CreateMatrix removal and reserved op renaming
docs/DXIL.rst	Updated documentation table with new operation names and descriptions

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[hekota]

LGTM!