[all-commits] [llvm/llvm-project] 14aeba: [analyzer] Fix crash destructing element of a suga...

[Arseniy Zaostrovnykh via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 14aebab4c6fe5c9f937efcdf1ea184495de6b737
      https://github.com/llvm/llvm-project/commit/14aebab4c6fe5c9f937efcdf1ea184495de6b737
  Author: Arseniy Zaostrovnykh <necto.ne at gmail.com>
  Date:   2026-09-07 (Mon, 07 Sep 2026)

  Changed paths:
    M clang/lib/StaticAnalyzer/Core/ExprEngineCXX.cpp
    M clang/test/Analysis/dtor-array.cpp

  Log Message:
  -----------
  [analyzer] Fix crash destructing element of a sugared array type

ExprEngine::makeElementRegion falls short trying to determine the
element type of an array that involves a type aliasing a static array
type.

This leads to a crash in ExprEngine::ProcessMemberDtor where it assumes
that element type is a CXXRecordDecl, while it is still a type alias to
a static array type.

getBaseElementType is the canonical way to desugar and peel off the
array dimensions.

Assisted by Claude Opus 5

--
CPP-8838



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