<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/60721>60721</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang-format alignment malfunctions near preprocessor ifdef blocks
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          mbeall-cricut
      </td>
    </tr>
</table>

<pre>
    # Clang-format alignment near preprocessor ifdef blocks
When using ifdef blocks for hardware configurations, clang-format assignment and comment alignment seem to misbehave.

Using `clang-format` version 15.0.6


Issue arises when using the following `.clang-format` style file:
```
BasedOnStyle: LLVM
BreakBeforeBraces: Allman
ColumnLimit: 180
IndentWidth: 2
IndentPPDirectives: BeforeHash
TabWidth: 2
UseTab: Never
BreakBeforeBraces: Allman
InsertBraces: true
BreakBeforeBinaryOperators: None
KeepEmptyLinesAtTheStartOfBlocks: false
AlignConsecutiveAssignments: Consecutive
AlignConsecutiveDeclarations: Consecutive
AlignTrailingComments: true
AlignConsecutiveMacros: Consecutive
SpacesBeforeTrailingComments: 1
AllowShortFunctionsOnASingleLine: Empty
PointerAlignment: Left
SortIncludes: Never
```

The resulting formatting looks like this:
```
void myFunction()
{
#ifdef CONFIG_OPTION_1
  const uint8_t My_Big_Long_Variable_Divisor = 0x2;
#else
  const uint8_t My_Big_Long_Variable_Divisor = 0x3;
#endif

  // Comment
 BITREGISTER.REGBITS1 = 1;                            // same line comment
 BITREGISTER.REGBITS2 = My_Big_Long_Variable_Divisor; // same line comment
#ifdef CONFIG_OPTION_2
  BITREGISTER.BITS3 = 0; // same line comment
#else
  BITREGISTER.BITS3                          = 1; // same line comment
#endif
}
```

## Expected behavior

I would expect adjacent assignments across preprocessor directives to be aligned as if they are actually adjacent. In the example above, I would expect this result:
```
void myFunction()
{
#ifdef CONFIG_OPTION_1
  const uint8_t My_Big_Long_Variable_Divisor = 0x2;
#else
  const uint8_t My_Big_Long_Variable_Divisor = 0x3;
#endif

  // Comment
 BITREGISTER.REGBITS1 = 1;                            // same line comment
 BITREGISTER.REGBITS2 = My_Big_Long_Variable_Divisor; // same line comment
#ifdef CONFIG_OPTION_2
  BITREGISTER.BITS3    = 0; // same line comment
#else
  BITREGISTER.BITS3    = 1; // same line comment
#endif
}
```


</pre>
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