[all-commits] [llvm/llvm-project] 8fd3b5: Fix an edge case in determining is a function has ...

[Aaron Ballman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8fd3b5de3f96300189a2841278e6c7b6654bffc5
      https://github.com/llvm/llvm-project/commit/8fd3b5de3f96300189a2841278e6c7b6654bffc5
  Author: Aaron Ballman <aaron at aaronballman.com>
  Date:   2022-04-15 (Fri, 15 Apr 2022)

  Changed paths:
    M clang/lib/Sema/SemaDecl.cpp
    M clang/test/Sema/warn-strict-prototypes.c

  Log Message:
  -----------
  Fix an edge case in determining is a function has a prototype

Given the declaration:

  typedef void func_t(unsigned);
  __attribute__((noreturn)) func_t func;

we would incorrectly determine that `func` had no prototype because the
`noreturn` attribute would convert the underlying type directly into a
FunctionProtoType, but the declarator for `func` itself was not one for
a function with a prototype. This adds an additional check for when the
declarator is a type representation for a function with a prototype.