[all-commits] [llvm/llvm-project] 9fe5aa: [clang][Sema] Skip the RequiresExprBodyDecls for l...

[Younan Zhang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9fe5aa31eccff49632e40bcdad6e64fc00190889
      https://github.com/llvm/llvm-project/commit/9fe5aa31eccff49632e40bcdad6e64fc00190889
  Author: Younan Zhang <zyn7109 at gmail.com>
  Date:   2024-03-07 (Thu, 07 Mar 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/TreeTransform.h
    M clang/test/SemaTemplate/concepts-lambda.cpp

  Log Message:
  -----------
  [clang][Sema] Skip the RequiresExprBodyDecls for lambda dependencies (#83997)

The dependency of a lambda inside of a `RequiresExprBodyDecl` was
previously affected by its parent, e.g.,
`ClassTemplateSpecializationDecl`. This made the lambda always dependent
regardless of the template arguments we had, which caused some crashes
on the constraint evaluation later.

This fixes https://github.com/llvm/llvm-project/issues/56556, fixes
https://github.com/llvm/llvm-project/issues/82849 and a case
demonstrated by
https://github.com/llvm/llvm-project/issues/49570#issuecomment-1664966972.



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