[all-commits] [llvm/llvm-project] bd0ed0: [Clang][SemaCXX] Add unused warning for variables ...

[Takuya Shimizu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bd0ed0abc31fa5a49e87eeca7aa872e7f6e4d1e7
      https://github.com/llvm/llvm-project/commit/bd0ed0abc31fa5a49e87eeca7aa872e7f6e4d1e7
  Author: Takuya Shimizu <shimizu2486 at gmail.com>
  Date:   2023-08-06 (Sun, 06 Aug 2023)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaExprCXX.cpp
    M clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
    M clang/test/SemaCXX/warn-unused-variables.cpp

  Log Message:
  -----------
  [Clang][SemaCXX] Add unused warning for variables declared in condition expressions

This patch marks the declarations with initializations in condition expressions such as
if (int var = init) as unreferenced so that -Wunused can warn on them.

Fixes https://github.com/llvm/llvm-project/issues/61681

Reviewed By: cor3ntin
Differential Revision: https://reviews.llvm.org/D152495