[PATCH] Fix to PR8880 (clang dies processing a for loop).

Serge Pavlov sepavloff at gmail.com
Wed Oct 2 07:18:35 PDT 2013


Friendly ping.


2013/9/26 Serge Pavlov <sepavloff at gmail.com>

> sepavloff added you to the CC list for the revision "Fix to PR8880 (clang
> dies processing a for loop).".
>
> Due to statement expressions supported as GCC extension, it is possible to
> put 'break' or 'continue' into a loop/switch statement but outside its
> body, similar to this:
>     for ( ; ({ if (first) { first = 0; continue; } 0; }); )
> Such usage must be diagnosed as an error, GCC rejects it.
> To recognize such patterns the flags BreakScope and ContinueScope are
>  temporarily turned off while parsing condition expression.
>
> Please review the fix.
> Thank you.
>
> http://llvm-reviews.chandlerc.com/D1762
>
> Files:
>   include/clang/Basic/DiagnosticSemaKinds.td
>   include/clang/Parse/Parser.h
>   include/clang/Sema/Scope.h
>   lib/Parse/ParseStmt.cpp
>   lib/Parse/Parser.cpp
>   lib/Sema/Scope.cpp
>   test/Analysis/dead-stores.c
>   test/Parser/bad-control.c
>   test/Sema/statements.c
>
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>


-- 
Thanks,
--Serge
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