This fixes a bug found while working on the bitcode reader. In
particular, the method BitstreamReader::AtEndOfStream doesn't always
behave correctly when processing a data streamer. The method
fillCurWord doesn't properly set CurWord/BitsInCurWord if the data
streamer was already at eof, but GetBytes had not yet set the
ObjectSize field of the streaming memory object.
This patch fixes this problem, and provides a test to show that
this problem has been fixed.
Patch by Karl Schimpf.
Differential Revision: http://reviews.llvm.org/D11391
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243890 91177308-0d34-0410-b5e6-96231b3b80d8
Eventually we can make some of these pass the error along to the caller.
Reports a fatal error if:
We find an invalid abbrev record
We try to get an invalid abbrev number
We can't fill the current word due to an EOF
Fixed an invalid bitcode test to check for output with FileCheck
Bugs found with afl-fuzz
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226986 91177308-0d34-0410-b5e6-96231b3b80d8
