[NFC][ValueTracking] Add OffsetZero into findAllocaForValue
authorVitaly Buka <vitalybuka@google.com>
Thu, 27 Aug 2020 20:45:39 +0000 (13:45 -0700)
committerVitaly Buka <vitalybuka@google.com>
Thu, 27 Aug 2020 20:46:22 +0000 (13:46 -0700)
commita6927c8621269a3c00c0ac83ec57b66f28c78863
treecfe71ab2cef9c8666d6a8ca41b94991be7544a05
parenta1bc37c9e54e0163bc6ccb7a438a68047310ccff
[NFC][ValueTracking] Add OffsetZero into findAllocaForValue

For StackLifetime after finding alloca we need to check that
values ponting to the begining of alloca.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D86692
llvm/include/llvm/Analysis/ValueTracking.h
llvm/lib/Analysis/ValueTracking.cpp
llvm/unittests/Analysis/ValueTrackingTest.cpp