Commits on Nov 28, 2018

1. Revert "[DebugInfo][Dexter] Unreachable line stepped onto after Simpl… …

   …ifyCFG."
   
   This reverts commit 8381d3e.

   

   nikic committed Nov 28, 2018
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2. [MergeFuncs] Generate alias instead of thunk if possible …

   The MergeFunctions pass was originally intended to emit aliases
   instead of thunks where possible (unnamed_addr). However, for a
   long time this functionality was behind a flag hardcoded to false,
   bitrotted and was eventually removed in r309313.
   
   Originally the functionality was first disabled in r108417 due to
   lack of support for aliases in Mach-O. I believe that this is no
   longer the case nowadays, but not really familiar with this area.
   
   In the interest of being conservative, this patch reintroduces the
   aliasing functionality behind a default disabled -mergefunc-use-aliases
   flag.
   
   Differential Revision: https://reviews.llvm.org/D53285
   
   git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347407 91177308-0d34-0410-b5e6-96231b3b80d8

   

   nikic committed Nov 28, 2018
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