Merging r370753:

Merging r370753:
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r370753 | jonpa | 2019-09-03 15:31:22 +0200 (Tue, 03 Sep 2019) | 6 lines

[SystemZ]  Recognize INLINEASM_BR in backend.

SystemZInstrInfo::analyzeBranch() needs to check for INLINEASM_BR
instructions, or it will crash.

Review: Ulrich Weigand
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_90@371043 91177308-0d34-0410-b5e6-96231b3b80d8