[all-commits] [llvm/llvm-project] 99fd06: [clang][Sema] Don't try to initialize implicit var...

[Ta-Wei Tu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 99fd0662278470f5405b8abd79b681b96cac7856
      https://github.com/llvm/llvm-project/commit/99fd0662278470f5405b8abd79b681b96cac7856
  Author: Ta-Wei Tu <tu.da.wei at gmail.com>
  Date:   2021-03-31 (Wed, 31 Mar 2021)

  Changed paths:
    M clang/lib/Sema/SemaDecl.cpp
    A clang/test/SemaCXX/PR49534.cpp

  Log Message:
  -----------
  [clang][Sema] Don't try to initialize implicit variable of invalid anonymous union/struct

This fixes https://bugs.llvm.org/show_bug.cgi?id=49534, where the call to the constructor
of the anonymous union is checked and triggers assertion failure when trying to retrieve
the alignment of the `this` argument (which is a union with virtual function).

The extra check for alignment was introduced in D97187.

Reviewed By: tmatheson

Differential Revision: https://reviews.llvm.org/D98548