[cfe-dev] Bug in

[Olaf Krzikalla]

Hi @clang,

there seems to be a bug in InitPreprocessor.h, line 139 rendering the 
release build of MSVC buggy.
The line

  llvm::Twine DefPrefix = "__" + Prefix + "_";

should read

  llvm::Twine DefPrefixTmp = "__" + Prefix;
  llvm::Twine DefPrefix = DefPrefixTmp + "_";

otherwise there is a temporary llvm::Twine object used after 
deconstruction. With the change above it works fine.

Best regards
Olaf


PS: sorry for not providing a patch but I'm already late
(and it took me some time as it only occured in the release build).

-- 
Olaf Krzikalla
Technische Universitaet Dresden
Zentrum fuer Informationsdienste und Hochleistungsrechnen
Abteilung Verteiltes und Datenintensives Rechnen
Zellescher Weg 12, 01069 Dresden
Willersbau, Zimmer A105
Telefonnr.: +49 351 463-32442