Alexey Samsonov e5864c69a8 Don't allow MCStreamer::EmitIntValue to output 0-byte integers. ...

It makes no sense and can hide bugs. In particular, it lead
to left shift by 64 bits, which is an undefined behavior,
properly reported by UBSan.

llvm-svn: 216134

2014-08-20 22:46:38 +00:00

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