#ifdef followed by constructor results in wrong code

[llvmbot]

Bugzilla Link	39883
Version	unspecified
OS	All
Reporter	LLVM Bugzilla Contributor

Extended Description

The following code is scrambled after formatting it with clang-format:

namespace a {

class A {
 public:
  void foo() {
#ifdef RANDOM_INIT
    { randomize(); }
#endif
  }

  A() {}
};

} // namespace a

When the constructor "A() { }" or the brackets around "randomize();" are removed the formatting is as expected. (The brackets are there, because I have a #pragma for the block.)

clang-format --version
clang-format version 8.0.0 (tags/google/stable/2018-10-04)

Content of .clang-format:

BasedOnStyle: Chromium

Language: Cpp
AlignConsecutiveAssignments: true
AlignOperands: true
FixNamespaceComments: true

[mkurdej]

Also reproducible with LLVM style.
Using clang-format 14 (main from 2022-02-02), I get:

namespace a {

class A {
public:
  void foo(){
#ifdef RANDOM_INIT
      {randomize();
}
#endif
} // namespace a

A() {}
}
;

} // namespace a

[llvmbot]

@llvm/issue-subscribers-bug

[owenca]

Works as expected in 20.1.7