commit d92241a910cb9807008f610e06fa4010229ea17d
author Michael Kruse <llvm@meinersbur.de> Mon May 20 22:31:09 2019 +0000
committer Michael Kruse <llvm@meinersbur.de> Mon May 20 22:31:09 2019 +0000
tree b893da4a657f641e1c8da610b51c3bfa4d52e359
parent 8148629c5a0970fde8927ee8274d574d5581a4f1

[CodeGen] Fix order of PHINode and MA Write generation.

At the end of a region statement, the PHINode must be generated
while the current IRBuilder's block is the region's exit node. For
obvious reasons: The PHINode references the region's exiting block.
A partial write would insert new control flow, i.e. insert new basic
blocks between the exiting blocks and the current block.

We fix this by generating the PHI nodes (region exit values) before
generating any MemoryAccess's stores.

This should fix the AOSP buildbot.

Reported-by: Eli Friedman <efriedma@quicinc.com>

git-svn-id: https://llvm.org/svn/llvm-project/polly/trunk@361204 91177308-0d34-0410-b5e6-96231b3b80d8