commit 8175d01f188611f30f05c39238df3401e6f53a34
author Vedant Kumar <vsk@apple.com> Sat Jan 19 02:37:59 2019 +0000
committer Vedant Kumar <vsk@apple.com> Sat Jan 19 02:37:59 2019 +0000
tree 1ad702cf2061ae7cecc5181cd9f7a268cbf47022
parent b63d21f45082edfc60d4e57b0e011fefd5656c79

[CodeExtractor] Emit lifetime markers around reloads of outputs

CodeExtractor permits extracting a region of blocks from a function even
when values defined within the region are used outside of it.

This is typically done by creating an alloca in the original function
and reloading the alloca after a call to the extracted function.

Wrap the reload in lifetime start/end markers to promote stack coloring.

Suggested by Sergei Kachkov!

Differential Revision: https://reviews.llvm.org/D56045

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351621 91177308-0d34-0410-b5e6-96231b3b80d8