Remove z3 constraint solver option - #5055
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bruntib merged 3 commits intoAug 31, 2026
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Upstream Clang removed -analyzer-constraints=z3, replacing it with unsupported-z3 (llvm/llvm-project#205370). CodeChecker no longer injects this flag into the analyzer command line. - --z3 flag is kept but deprecated (no-op with warning), removal in 6.30 - is_z3_capable() probes both unsupported-z3 and z3 for older clangs - Z3 refutation (--z3-refutation) is unaffected
Since the z3 solver it is officially unsupported in clangsa and it is inherently slow for production use, the flag is removed.
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This PR is based on #5011 from @gamesh411 |
bruntib
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Aug 30, 2026
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| handler.enable_z3 = 'enable_z3' in args and args.enable_z3 == 'on' | ||
| if handler.enable_z3: | ||
| LOG.warning("The '--z3' flag is deprecated and has no effect. " | ||
| "The Z3 constraint solver backend is no longer " | ||
| "supported by upstream Clang. This flag will be " | ||
| "removed in CodeChecker 6.30. Use " | ||
| "'--z3-refutation' instead.") |
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The --z3 flag has been eliminated, so this can never be True. This whole section could be removed.
bruntib
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Aug 31, 2026
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Backward Incompatible: Remove --z3 flag
Since the z3 solver it is officially unsupported in clangsa
and it is inherently slow for production use, the flag is removed.
Z3 refutation for clang static analyzer will continue to be supported!