Update ROOT and Cling to LLVM22#21658

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devajithvs wants to merge 30 commits into

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devajithvs:ROOT-llvm22

Commits on Jun 19, 2026

Import ROOT-llvm22
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[cling][LLVM20] Misc adaptations for updated APIs
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[cling] Unload: TopLevelStmtDecl special casing
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[core][LLVM22] Adapt to LLVM 22 API changes
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[cling][AST] Add utility function `QualifyTypeUnderPrefix`
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[cling][AST] Copy `QualTypeName.cpp` functions into `AST.cpp`
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[cling][LLVM22] All the NestedNameSpecifier changes
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[core][LLVM22] All NestedNameSpecifier changes
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[cling][AST] Add `getFullyQualifiedType` changes needed for cling
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[cling][AST][Desugar] Strip AutoType early before the type-specific handling
devajithvs
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[cling][AST] PartialDesugaring: Fix loss of namespace prefix for TST
devajithvs
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[cling][AST] Strip unnecessary global '::' qualifier for TemplateNames
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[cling][AST] Restore partial desugaring of global RecordType prefixes in LLVM22
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[TClassEdit][REVISIT] Map `__size_t` and `__ptrdiff_t` aliases back to standard types
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[TCling] Strip tag keywords to handle LLVM22 elaborated type removal
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[TCling][NestedNameSpecifier] ReSubstTemplateArg: Early return only for Kind::Type
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[cling][test] Update output print types
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[cling][test] Fix Transform test: populate m_toReplace for std::string
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[roottest] Update reference files after LLVM22
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[roottest][meta] Update test-case to reflect what was written
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[roottest] Adapt ResolveTypedef test for LLVM22 UsingType desugaring
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[cppyy] Unmark xfail, this test now passes with LLVM22
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[cling] Enable SuppressTagKeywordInAnonNames by default
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[cling][macos] Allow framework includes in System group in CopyIncludePaths
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[cling] Clear `UnsubstitutedConstraintSatisfactionCache` on unload
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[cling] Suppress SFINAE diagnostics in InstantiateTemplateWithDefaults
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[TEMPORARY] Turn off AdaptiveCpp and CLAD temporarily
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[cling][AST] Remove dead ElaboratedType code paths
devajithvs
committed

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Update ROOT and Cling to LLVM22#21658

Update ROOT and Cling to LLVM22#21658
devajithvs wants to merge 30 commits into
root-project:masterfrom
devajithvs:ROOT-llvm22

Commits on Jun 19, 2026

Import ROOT-llvm22

[cling][LLVM20] Misc adaptations for updated APIs

[cling] Unload: TopLevelStmtDecl special casing

[core][LLVM22] Adapt to LLVM 22 API changes

[cling][AST] Add utility function `QualifyTypeUnderPrefix`

[cling][AST] Copy `QualTypeName.cpp` functions into `AST.cpp`

[cling][LLVM22] All the NestedNameSpecifier changes

[core][LLVM22] All NestedNameSpecifier changes

[cling][AST] Add `getFullyQualifiedType` changes needed for cling

[cling][AST][Desugar] Strip AutoType early before the type-specific handling

[cling][AST] PartialDesugaring: Fix loss of namespace prefix for TST

[cling][AST] Strip unnecessary global '::' qualifier for TemplateNames

[cling][AST] Restore partial desugaring of global RecordType prefixes in LLVM22

[TClassEdit][REVISIT] Map `__size_t` and `__ptrdiff_t` aliases back to standard types

[TCling] Strip tag keywords to handle LLVM22 elaborated type removal

[TCling][NestedNameSpecifier] ReSubstTemplateArg: Early return only for Kind::Type

[cling][test] Update output print types

[cling][test] Fix Transform test: populate m_toReplace for std::string

[roottest] Update reference files after LLVM22

[roottest][meta] Update test-case to reflect what was written

[roottest] Adapt ResolveTypedef test for LLVM22 UsingType desugaring

[cppyy] Unmark xfail, this test now passes with LLVM22

[cling] Enable SuppressTagKeywordInAnonNames by default

[cling][macos] Allow framework includes in System group in CopyIncludePaths

[cling] Clear `UnsubstitutedConstraintSatisfactionCache` on unload

[cling] Suppress SFINAE diagnostics in InstantiateTemplateWithDefaults

[TEMPORARY] Turn off AdaptiveCpp and CLAD temporarily

[cling][AST] Remove dead ElaboratedType code paths

Commits on Jun 22, 2026

[TCling][REVISIT] Strip tag keywords to handle LLVM22 elaborated type removal

Revert "[TCling] Strip tag keywords to handle LLVM22 elaborated type removal"