Merging r323536:

Merging r323536:
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r323536 | arichardson | 2018-01-26 16:56:14 +0100 (Fri, 26 Jan 2018) | 11 lines

[MIPS] Don't crash on unsized extern types with -mgpopt

Summary: This fixes an assertion when building the FreeBSD MIPS64 kernel.

Reviewers: atanasyan, sdardis, emaste

Reviewed By: sdardis

Subscribers: krytarowski, llvm-commits

Differential Revision: https://reviews.llvm.org/D42571
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_60@324087 91177308-0d34-0410-b5e6-96231b3b80d8