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This removes unused includes (and forward declarations) as
suggested by include-what-you-use. If a transitive include of a removed
include is required to compile a file, I added the required header (or
forward declaration if suggested by include-what-you-use).
This should reduce compilation time and reduce the number of iterative
recompilations when a header was changed.
llvm-svn: 357209
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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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Polly version of r315249 on LLVM trunk.
llvm-svn: 315253
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r314375 privatized Loop's constructor and replaced it with an Allocator.
llvm-svn: 314412
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Properly require and preserve the OptimizationRemarkEmitter for use in
ScopPass. Previously one had to get the ORE from ScopDetection because
CodeGeneration did not mark it as preserved. It would need to be
recomputed which results in the legacy PM to throw away all previous
SCoP analysis.
This also changes the implementation of ScopPass::getAnalysisUsage to
not unconditionally preserve all passes, but only those needed to be
preserved by any SCoP pass (at least when using the legacy PM). This
allows invalidating DependenceInfo (and IslAstInfo) in case the pass
would cause them to change (e.g. OpTree, DeLICM, MaximalArrayExpansion)
JSONImporter should also invalidate the DependenceInfo. In this patch
it marks DependenceInfo as preserved anyway because some regression
tests depend on it.
Differential Revision: https://reviews.llvm.org/D37010
llvm-svn: 311888
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Summary:
During code generation for a Scop we modify the IR of a function.
While this shouldn't affect a Scop in the formal sense, the implementation
caches various information about the IR such as SCEV expressions for bounds or
parameters. This cached information needs to be updated or invalidated. To this
end, SPMUpdater allows passes to report when they've invalidated a Scop to the
PassManager, which will then flush and recompute all Scops. This in turn
invalidates all iterators, so references to Scops shouldn't be held.
Reviewers: grosser, Meinersbur, bollu
Reviewed By: grosser
Subscribers: llvm-commits, pollydev
Differential Revision: https://reviews.llvm.org/D36524
llvm-svn: 310551
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llvm-svn: 309853
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OwningScopAnalysisManagerFunctionProxy to the polly namespace.
When compiling with clang, explicit instantiation of the
OwningScopAnalysisManagerFunctionProxy needs to happen within the polly
namespace. Same goes with the specialization of its run method.
llvm-svn: 309835
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Summary:
This patch is a first attempt at registering Polly passes with the LLVM tools. Tool plugins are still unsupported, but this registration is usable from the tools if Polly is linked into them (albeit requiring minimal patches to those tools). Registration requires a small amount of machinery (the owning analysis proxies), necessary for injecting ScopAnalysisManager objects into the calling tools.
This patch is marked WIP because the registration is incomplete. Parsing manual pipelines is fully supported, but default pass injection into the O3 pipeline is lacking, mostly because there is opportunity for some redesign here, I believe. The first point of order would be insertion points. I think it makes sense to run before the vectorizers. Running Polly Early, however, is weird. Mostly because it actually is the default (which to me is unexpected), and because Polly runs it's own O1 pipeline. Why not instead insert it at an appropriate place somewhere after simplification happend? Running after the loop optimizers seems intuitive, but it also seems wasteful, since multiple consecutive loops might well be a single scop, and we don't need to run for all of them.
My second request for comments would be regarding all those smallish helper passes we have, like PollyViewer, PollyPrinter, PollyImportJScop. Right now these are controlled by command line options, deciding whether they should be part of the Polly pipeline. What is your opinion on treating them like real passes, and have the user write an appropriate pipeline if they want to use any of them?
Reviewers: grosser, Meinersbur, bollu
Reviewed By: grosser
Subscribers: llvm-commits, pollydev
Tags: #polly
Differential Revision: https://reviews.llvm.org/D35458
llvm-svn: 309826
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Summary: I made a mistake in handling transitive invalidation of analysis results. I've updated the list of preserved analyses as well as the correct result dependences.
The Invalidator passed through the invalidate() path can be used to
transitively invalidate analyses. It frequently happens that analysis
results depend on other analyses, and thus store references to their
results. When the dependee now gets invalidated, the depender needs to
be invalidated as well. This is the purpose of the Invalidator object,
which can be used to check whether some dependee analysis is in the
process of being invalidated. I originally was checking the wrong
dependee analyses, which is an actual error, you can only check analysis
results that are in the cache (which they are if you've captured their
reference). The invalidation I'm handling inside the proxy deals with
the standard analyses the proxy passes into the Scop pipeline, since I'm
capturing their reference.
This checking allows us to actually preserve a couple of results outside
of the proxy, since the Scop pipeline shouldn't break those, or
otherwise should update them accordingly.
Reviewers: grosser, Meinersbur, bollu
Reviewed By: grosser
Subscribers: pollydev, llvm-commits
Differential Revision: https://reviews.llvm.org/D36216
llvm-svn: 309811
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This is useful for debugging miscompiles and extracting testcases
for crashes. See http://llvm.org/docs/OptBisect.html .
Differential Revision: https://reviews.llvm.org/D33752
llvm-svn: 304480
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This patch adds both a ScopAnalysisManager and a ScopPassManager.
The ScopAnalysisManager is itself a Function-Analysis, and manages
analyses on Scops. The ScopPassManager takes care of building Scop pass
pipelines.
This patch is marked WIP because I've left two FIXMEs which I need to
think about some more. Both of these deal with invalidation:
Deferred invalidation is currently not implemented. Deferred
invalidation deals with analyses which cache references to other
analysis results. If these results are invalidated, invalidation needs
to be propagated into the caching analyses.
The ScopPassManager as implemented assumes that ScopPasses do not affect
other Scops in any way. There has been some discussion about this on
other patch threads, however it makes sense to reiterate this for this
specific patch.
I'm uploading this patch even though it's incomplete to encourage
discussion and give you an impression of how this is going to work.
Differential Revision: https://reviews.llvm.org/D33192
llvm-svn: 303062
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Created a new pass ScopInfoRegionPass. As name suggests, it is a
region pass and it is there to preserve compatibility with our
existing Polly passes. ScopInfoRegionPass will return a SCoP object
for a valid region while the creation of the SCoP stays in the
ScopInfo class.
Contributed-by: Utpal Bora <cs14mtech11017@iith.ac.in>
Reviewed-by: Tobias Grosser <tobias@grosser.es>,
Johannes Doerfert <doerfert@cs.uni-saarland.de>
Differential Revision: http://reviews.llvm.org/D20770
llvm-svn: 271259
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This is the first step in the interface simplification.
llvm-svn: 230897
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llvm-svn: 221982
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llvm-svn: 171224
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Suggested by: Sebastian Pop
llvm-svn: 155863
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llvm-svn: 141254
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This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e
in the old git repository.
llvm-svn: 130476
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