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5530148
2012 Dec 10
0
[LLVMdev] Possible bug in DFAPacketizer::ReadTable
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2012 Dec 10
2
[LLVMdev] Possible bug in DFAPacketizer::ReadTable
Hi all,
I have found what I think it is a bug in DFAPacketizer::ReadTable.
When finding NextStateInTable to cache all transitions belonging to a state
into CachedTable, ReadTable does not check bounds:
unsigned ThisState =
DFAStateEntryTable[state];
|
unsigned NextStateInTable = DFAStateEntryTable[state+1];
which makes NextStateInTable get a random value when state == <last state
in