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author | David Majnemer <david.majnemer@gmail.com> | 2014-12-10 02:10:35 +0000 |
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committer | David Majnemer <david.majnemer@gmail.com> | 2014-12-10 02:10:35 +0000 |
commit | 6f3be2e155193c12f7da1d78a780f8644fd8b3f5 (patch) | |
tree | 085998b7f6264178b1e4d5e1a44d954080aa3ca4 /llvm/lib/AsmParser | |
parent | ff0f23dd417a79ae029206ff16a6d0c785b546cc (diff) | |
download | bcm5719-llvm-6f3be2e155193c12f7da1d78a780f8644fd8b3f5.tar.gz bcm5719-llvm-6f3be2e155193c12f7da1d78a780f8644fd8b3f5.zip |
AsmParser: Don't allow null bytes in BB labels
Since Value objects can't have null bytes in their name, we shouldn't
allow them in the labels of basic blocks.
llvm-svn: 223907
Diffstat (limited to 'llvm/lib/AsmParser')
-rw-r--r-- | llvm/lib/AsmParser/LLLexer.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp index cd7f09b8933..ca3c9e8b6f8 100644 --- a/llvm/lib/AsmParser/LLLexer.cpp +++ b/llvm/lib/AsmParser/LLLexer.cpp @@ -393,7 +393,12 @@ lltok::Kind LLLexer::LexQuote() { if (CurPtr[0] == ':') { ++CurPtr; - kind = lltok::LabelStr; + if (StringRef(StrVal).find_first_of(0) != StringRef::npos) { + Error("Null bytes are not allowed in names"); + kind = lltok::Error; + } else { + kind = lltok::LabelStr; + } } return kind; |