[all-commits] [llvm/llvm-project] 72ac90: [C++20] [Modules] Use the canonical decl when gett...

[Chuanqi Xu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 72ac90715876e2963af899cbb883bad1e07b67bd
      https://github.com/llvm/llvm-project/commit/72ac90715876e2963af899cbb883bad1e07b67bd
  Author: Chuanqi Xu <yedeng.yd at linux.alibaba.com>
  Date:   2023-06-21 (Wed, 21 Jun 2023)

  Changed paths:
    M clang/lib/Sema/SemaConcept.cpp
    A clang/test/Modules/pr62943.cppm

  Log Message:
  -----------
  [C++20] [Modules] Use the canonical decl when getting associated constraints

Close https://github.com/llvm/llvm-project/issues/62943.

The root cause for the issue is that we think the associated constraints
from the 'same' declaration in different module units are different
incorrectly. Since the constraints doesn't know anything about decls and
modules, we should fix the problem by getting the associated constraints
from the exactly the same declarations from different modules.