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[analyzer] Indicate UnarySymExpr is not supported by Z3 #108900

Merged
merged 1 commit into from
Sep 19, 2024
Merged

[analyzer] Indicate UnarySymExpr is not supported by Z3 #108900

merged 1 commit into from
Sep 19, 2024

Commits on Sep 19, 2024

  1. [analyzer] Indicate UnarySymExpr is not supported by Z3 

    Random testing found that the Z3 wrapper does not support UnarySymExpr,
which was added recently and not included in the original Z3 wrapper.
For now, just avoid submitting expressions to Z3 to avoid compiler crashes.

Some crash context ...

clang -cc1 -analyze -analyzer-checker=core z3-unarysymexpr.c -analyzer-constraints=z3

Unsupported expression to reason about!
UNREACHABLE executed at clang/include/clang/StaticAnalyzer/Core/PathSensitive/SMTConstraintManager.h:297!

Stack dump:
3.	<root>/clang/test/Analysis/z3-unarysymexpr.c:13:7: Error evaluating branch
 #0 <addr> llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
 llvm#1 <addr> llvm::sys::RunSignalHandlers()
 llvm#8 <addr> clang::ento::SimpleConstraintManager::assumeAux(
            llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::NonLoc, bool)
 llvm#9 <addr> clang::ento::SimpleConstraintManager::assume(
            llvm::IntrusiveRefCntPtr<clang::ento::ProgramState const>, clang::ento::NonLoc, bool)
    einvbri committed Sep 19, 2024
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