John McCall 13a39c6f54 When devirtualizing the conversion to a virtual base subobject, ...

don't explode if the offset we get is zero.  This can happen if
you have an empty virtual base class.

While I'm at it, remove an unnecessary block from the IR-generation
of the null-check, mark the eventual GEP as inbounds, and generally
prettify.

llvm-svn: 161100

2012-08-01 05:04:58 +00:00

2.3 KiB

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