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We don't need to return a MachineInstr* from these stack probe insertion calls anyway. If we ever need to add it back, we can return an iterator instead. Based on a patch by David Kreitzer This bug is a consequence of r279314 | dexonsmith | 2016-08-19 13:40:12 -0700 (Fri, 19 Aug 2016) | 110 lines We hit the "Assertion `!NodePtr->isKnownSentinel()' failed" assertion, but only when inserting a stack probe call at the end of an MBB, which isn't necessarily a common situation. Differential Revision: https://reviews.llvm.org/D25566 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284130 91177308-0d34-0410-b5e6-96231b3b80d8
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