SuccessChanges

Summary

  1. [LoopInterchange] Properly move condition, induction increment and ops (details)
  2. [LLDB] Do not try to canonicalize gethostname() result (details)
Commit e4961218fd5b9bb36810b8dc05481f29068dbbdd by flo
[LoopInterchange] Properly move condition, induction increment and ops
to latch.
Currently we only rely on the induction increment to come before the
condition to ensure the required instructions get moved to the new
latch.
This patch duplicates and moves the required instructions to the newly
created latch. We move the condition to the end of the new block, then
process its operands. We stop at operands that are defined outside the
loop, or are the induction PHI.
We duplicate the instructions and update the uses in the moved
instructions, to ensure other users remain intact. See the added test2
for such an example.
Reviewers: efriedma, mcrosier
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D67367
llvm-svn: 371595
The file was modifiedllvm/test/Transforms/LoopInterchange/phi-ordering.ll
The file was modifiedllvm/test/Transforms/LoopInterchange/reductions-across-inner-and-outer-loop.ll
The file was modifiedllvm/lib/Transforms/Scalar/LoopInterchange.cpp
The file was modifiedllvm/test/Transforms/LoopInterchange/interchangeable.ll
The file was addedllvm/test/Transforms/LoopInterchange/pr43176-move-to-new-latch.ll
The file was modifiedllvm/test/Transforms/LoopInterchange/perserve-lcssa.ll
Commit b250d5ff5e7c5ebd9f3f5da6776ffc91cd01c614 by dave
[LLDB] Do not try to canonicalize gethostname() result
This code is trying too hard and failing. Either the result of
gethostname() is canonical or it is not. If it is not, then trying to
canonicalize it is – for various reasons – a lost cause. For example, a
given machine might have multiple network interfaces with multiple
addresses per interface, each with a different canonical name.
Separably, the result of HostInfoPosix::GetHostname() and latency
thereof shouldn't depend on whether networking is up or down or what
network the machine happened to be attached to at any given moment (like
a laptop that travels between work and home).
https://reviews.llvm.org/D67230
llvm-svn: 371596
The file was modifiedlldb/source/Host/posix/HostInfoPosix.cpp