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Summary:
NOTE: I mostly put it on Phabricator to make it easy for other people to fetch & check if that fixes a bug.
This patch backports 4878aa36d4a and required earlier patches onto
the release/10.x branch.
It includes the following patches:
aa5ebfdf205de6d599c1fed3161da3b63b6f0bef [ValueLattice] Make mark* functions public, return if value changed.
c1943b42c5b7feff5d0e0c1358d02889e2be165f [ValueLattice] Update markConstantRange to return false equal ranges.
e30c257811f62fea21704caa961c61e4559de202 [CVP,SCCP] Precommit test for D75055.
4878aa36d4aa27df644430139fab2734fde4a000 [ValueLattice] Add new state for undef constants.
All patches except the last one apply cleanly. For the last one, the
changes to SCCP.cpp were stripped, because SCCP does not yet use
ValueLattice on release/10.x. Otherwise we would have to pull in more
additional changes.
Subscribers: tstellar, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D76596
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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Summary:
This allows sharing the lattice value code between LVI and SCCP (D36656).
It also adds a `satisfiesPredicate` function, used by D36656.
Reviewers: davide, sanjoy, efriedma
Reviewed By: sanjoy
Subscribers: mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D37591
llvm-svn: 314411
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