http://llvm.org/bugs/show_bug.cgi?id=15078
Bug #: 15078
Summary: LLVM parser crashes
Product: tools
Version: 3.0
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: llvm-as
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 9928
--> http://llvm.org/bugs/attachment.cgi?id=9928
File that causes parser crashes.
LLVM parser crashes on this input:
@vtable = internal constant [1 x i8*] [i8* @main]
define i32 @main() {
entryBlock:
ret i32 0
}
It's a very short file, has just 6 lines, but crashes lli, llvm-as, opt, and
probably everything else, since it happens in parser module. The line with
@vtable causes problem.
Stacktrace:
$ llvm-as cls.ll
0 libLLVM-3.0.so 0x000000353b8149bf
1 libLLVM-3.0.so 0x000000353b814e26
2 libpthread.so.0 0x0000003928e0efe0
3 libLLVM-3.0.so 0x000000353be9e82d
llvm::LLParser::ParseFunctionHeader(llvm::Function*&, bool) + 2317
4 libLLVM-3.0.so 0x000000353beacaa6 llvm::LLParser::ParseDefine() + 38
5 libLLVM-3.0.so 0x000000353bead068 llvm::LLParser::ParseTopLevelEntities() +
600
6 libLLVM-3.0.so 0x000000353bead1b8 llvm::LLParser::Run() + 24
7 libLLVM-3.0.so 0x000000353beb3613 llvm::ParseAssembly(llvm::MemoryBuffer*,
llvm::Module*, llvm::SMDiagnostic&, llvm::LLVMContext&) + 1747
8 libLLVM-3.0.so 0x000000353beb3e9b llvm::ParseAssemblyFile(std::string
const&, llvm::SMDiagnostic&, llvm::LLVMContext&) + 523
9 llvm-as 0x00000000004019dd
10 libc.so.6 0x0000003928621735 __libc_start_main + 245
11 llvm-as 0x000000000040251d
Stack dump:
0. Program arguments: llvm-as cls.ll
Segmentation fault (core dumped)
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