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C#: Replace SSA classes with shared code.#21762

Merged

aschackmull merged 30 commits into

github:maingithub/codeql:mainfrom

aschackmull:csharp/ssa2aschackmull/ql:csharp/ssa2Copy head branch name to clipboard

May 4, 2026

Conversation Commits30 (30)Checks Files changed

Merged

C#: Replace SSA classes with shared code.#21762
aschackmull merged 30 commits into
github:mainfrom
aschackmull:csharp/ssa2

Commits

Commits on Apr 30, 2026

C#: Rename SsaImpl input.
aschackmull
committed
C#: Instantiate shared SSA wrappers.
aschackmull
committed
C#: Simplify library instantiations.
aschackmull
committed
C#: Remove references to getAFirstReadAtNode.
aschackmull
committed
C#: Deprecate member predicates Definition.getAFirstRead and getAFirstReadAtNode.
aschackmull
committed
C#: Deprecate member predicate Definition.getAReadAtNode.
aschackmull
committed
C#: Replace most uses of Ssa::Definition with SsaDefinition.
aschackmull
committed
C#: Delete test for Definition.getElement.
aschackmull
committed
C#: Move isLiveOutRefParameterDefinition to top-level.
aschackmull
committed
C#: Deprecate Definition.getEnclosingCallable.
aschackmull
committed
C#: Replace Ssa::ExplicitDefinition with SsaExplicitWrite.
aschackmull
committed
C#: Remove SSA location overrides.
aschackmull
committed
C#: Replace Ssa::ImplicitParameterDefinition with SsaParameterInit.
aschackmull
committed
C#: Replace Ssa::PhiNode with SsaPhiDefinition.
aschackmull
committed
C#: Replace Ssa::UncertainDefinition with SsaUncertainWrite.
aschackmull
committed
C#: Deprecate Ssa::ImplicitEntryDefinition.
aschackmull
committed
C#: Deprecate Ssa::ImplicitDefinition.
aschackmull
committed
C#: Deprecate Ssa::Definition in favour of SsaDefinition.
aschackmull
committed
C#: Deprecate some SSA internals.
aschackmull
committed
C#: Reinstate toString for SSA data flow nodes.
aschackmull
committed
C#: Exclude entry definitions from qualifier definitions.
aschackmull
committed
C#: Drop caching for deprecated predicates.
aschackmull
committed

Commits on May 1, 2026

C#: Deprecate ParameterDefinition in favour of SsaParameterInit.
aschackmull
committed
C#: Delete ParameterDefaultDefinition.
aschackmull
committed
C#: Fix toString for capture definitions.
aschackmull
committed
C#: Accept test changes.
aschackmull
committed
C#: Accept test changes for out/ref SSA location changes.
aschackmull
committed
C#: Add change note.
aschackmull
committed

Commits on May 4, 2026

Update csharp/ql/lib/semmle/code/csharp/dataflow/internal/SsaImpl.qll

hvitved
and
Copilot
authored
C#: Address some review comments.
aschackmull
committed

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