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Commit 05051810 authored by Scott Constable's avatar Scott Constable Committed by Craig Topper
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[X86] Fix to X86LoadValueInjectionRetHardeningPass for possible segfault 

`MBB.back()` could segfault if `MBB.empty()`. Fixed by checking for `MBB.empty()` in the loop.

Differential Revision: https://reviews.llvm.org/D77584
parent aa4b37b2
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