[llvm] r223907 - AsmParser: Don't allow null bytes in BB labels
David Majnemer
david.majnemer at gmail.com
Tue Dec 9 18:10:36 PST 2014
Author: majnemer
Date: Tue Dec 9 20:10:35 2014
New Revision: 223907
URL: http://llvm.org/viewvc/llvm-project?rev=223907&view=rev
Log:
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.
Added:
llvm/trunk/test/Assembler/invalid-name2.ll
Modified:
llvm/trunk/lib/AsmParser/LLLexer.cpp
Modified: llvm/trunk/lib/AsmParser/LLLexer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/AsmParser/LLLexer.cpp?rev=223907&r1=223906&r2=223907&view=diff
==============================================================================
--- llvm/trunk/lib/AsmParser/LLLexer.cpp (original)
+++ llvm/trunk/lib/AsmParser/LLLexer.cpp Tue Dec 9 20:10:35 2014
@@ -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;
Added: llvm/trunk/test/Assembler/invalid-name2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Assembler/invalid-name2.ll?rev=223907&view=auto
==============================================================================
Binary files llvm/trunk/test/Assembler/invalid-name2.ll (added) and llvm/trunk/test/Assembler/invalid-name2.ll Tue Dec 9 20:10:35 2014 differ
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