diff options
| -rw-r--r-- | clang/lib/Lex/PPDirectives.cpp | 6 | ||||
| -rw-r--r-- | clang/test/Preprocessor/assembler-with-cpp.c | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/clang/lib/Lex/PPDirectives.cpp b/clang/lib/Lex/PPDirectives.cpp index 5f4c321715d..f422d254f0f 100644 --- a/clang/lib/Lex/PPDirectives.cpp +++ b/clang/lib/Lex/PPDirectives.cpp @@ -654,6 +654,12 @@ TryAgain: // Return the # and the token after it. Toks[0] = SavedHash; Toks[1] = Result; + + // If the second token is a hashhash token, then we need to translate it to + // unknown so the token lexer doesn't try to perform token pasting. + if (Result.is(tok::hashhash)) + Toks[1].setKind(tok::unknown); + // Enter this token stream so that we re-lex the tokens. Make sure to // enable macro expansion, in case the token after the # is an identifier // that is expanded. diff --git a/clang/test/Preprocessor/assembler-with-cpp.c b/clang/test/Preprocessor/assembler-with-cpp.c index 0543077c01c..a9c42940a31 100644 --- a/clang/test/Preprocessor/assembler-with-cpp.c +++ b/clang/test/Preprocessor/assembler-with-cpp.c @@ -72,3 +72,8 @@ 11: T11(b) // CHECK-Identifiers-True: 11: #0 + +// This should not crash +// rdar://8823139 +# ## +// CHECK-Identifiers-False: # ## |
