Peter Collingbourne 25a2b70cd0 CodeGen: Start using inrange annotations on vtable getelementptr. ...

This annotation allows the optimizer to split vtable groups, as permitted by
a change to the Itanium ABI [1] that prevents compilers from adjusting virtual
table pointers between virtual tables.

[1] https://github.com/MentorEmbedded/cxx-abi/pull/7

Differential Revision: https://reviews.llvm.org/D24431

llvm-svn: 289585

2016-12-13 20:50:44 +00:00

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