Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the ne

Update the file headers across all of the LLVM projects in the monorepo
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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Rename DEBUG macro to LLVM_DEBUG.

The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/

Rename DEBUG macro to LLVM_DEBUG.

The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
- Manual change to APInt
- Manually chage DOCS as regex doesn't match it.

In the transition period the DEBUG() macro is still present and aliased
to the LLVM_DEBUG() one.

Differential Revision: https://reviews.llvm.org/D43624

llvm-svn: 332240

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Remove \brief commands from doxygen comments.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they ar

Remove \brief commands from doxygen comments.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

llvm-svn: 331272

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[NFC] fix trivial typos in comments

"the the" -> "the"

llvm-svn: 322934

Remove redundant includes from lib/Transforms.

llvm-svn: 320628

[NFC] Convert OptimizationRemarkEmitter old emit() calls to new closure
parameterized emit() calls

Summary: This is not functional change to adopt new emit() API added in r313691.

Reviewed By: anem

[NFC] Convert OptimizationRemarkEmitter old emit() calls to new closure
parameterized emit() calls

Summary: This is not functional change to adopt new emit() API added in r313691.

Reviewed By: anemet

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D38285

llvm-svn: 315476

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Rename OptimizationDiagnosticInfo.* to OptimizationRemarkEmitter.*

Sync it up with the name of the class actually defined here. This has been
bothering me for a while...

llvm-svn: 315249

[LoopDataPrefetch][AArch64FalkorHWPFFix] Preserve ScalarEvolution

Summary:
Mark LoopDataPrefetch and AArch64FalkorHWPFFix passes as preserving
ScalarEvolution since they do not alter loop structure

[LoopDataPrefetch][AArch64FalkorHWPFFix] Preserve ScalarEvolution

Summary:
Mark LoopDataPrefetch and AArch64FalkorHWPFFix passes as preserving
ScalarEvolution since they do not alter loop structure and should not
alter any SCEV values (though LoopDataPrefetch may introduce new
instructions that won't have cached SCEV values yet).

This can result in slight code differences, mainly w.r.t. nsw/nuw flags
on SCEVs, since these are computed somewhat lazily when a zext/sext
instruction is encountered. As a result, passes after the modified
passes may see SCEVs with more nsw/nuw flags present.

Reviewers: sanjoy, anemet

Subscribers: aemerson, rengolin, mzolotukhin, javed.absar, kristof.beyls, mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D36716

llvm-svn: 311032

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Revert @llvm.assume with operator bundles (r289755-r289757)

This creates non-linear behavior in the inliner (see more details in
r289755's commit thread).

llvm-svn: 290086

Remove the AssumptionCache

After r289755, the AssumptionCache is no longer needed. Variables affected by
assumptions are now found by using the new operand-bundle-based scheme. This
new scheme is mo

Remove the AssumptionCache

After r289755, the AssumptionCache is no longer needed. Variables affected by
assumptions are now found by using the new operand-bundle-based scheme. This
new scheme is more computationally efficient, and also we need much less
code...

llvm-svn: 289756

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[LoopDataPrefetch] Port to new streaming API for opt remarks

llvm-svn: 282826

[LoopDataPrefetch] Use range based for loop; NFCI

Switch to range based for loop.
No functional change, but more readable code.

llvm-svn: 280966

[PM] Port LoopDataPrefetch to new pass manager

Summary:
Refactor the existing support into a LoopDataPrefetch implementation
class and a LoopDataPrefetchLegacyPass class that invokes it.
Add a new L

[PM] Port LoopDataPrefetch to new pass manager

Summary:
Refactor the existing support into a LoopDataPrefetch implementation
class and a LoopDataPrefetchLegacyPass class that invokes it.
Add a new LoopDataPrefetchPass for the new pass manager that utilizes
the LoopDataPrefetch implementation class.

Reviewers: mehdi_amini

Subscribers: sanjoy, mzolotukhin, nemanjai, llvm-commits

Differential Revision: https://reviews.llvm.org/D23483

llvm-svn: 278591

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[LoopDataPrefetch] Fix unused variable in release build

llvm-svn: 276491

[LoopDataPrefetch] Include hotness of region in opt remark

llvm-svn: 276488

[LoopDataPrefetch] Sort headers

llvm-svn: 276487

Apply clang-tidy's modernize-loop-convert to most of lib/Transforms.

Only minor manual fixes. No functionality change intended.

llvm-svn: 273808

Remove a few gendered pronouns.

llvm-svn: 272422

[LoopDataPrefetch] Add optimization remark

With -Rpass=loop-data-prefetch, show the memory access that got
prefetched.

llvm-svn: 268578

Add opt-bisect support to additional passes that can be skipped

Differential Revision: http://reviews.llvm.org/D19882

llvm-svn: 268457

[LoopDataPrefetch] Centralize the tuning cl::opts under the pass

This is effectively NFC, minus the renaming of the options
(-cyclone-prefetch-distance -> -prefetch-distance).

The change was reques

[LoopDataPrefetch] Centralize the tuning cl::opts under the pass

This is effectively NFC, minus the renaming of the options
(-cyclone-prefetch-distance -> -prefetch-distance).

The change was requested by Tim in D17943.

llvm-svn: 264806

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[LoopDataPrefetch] Make more member functions private, NFC.

llvm-svn: 264798

[LoopDataPrefetch] Add TTI to limit the number of iterations to prefetch ahead

Summary:
It can hurt performance to prefetch ahead too much. Be conservative for
now and don't prefetch ahead more tha

[LoopDataPrefetch] Add TTI to limit the number of iterations to prefetch ahead

Summary:
It can hurt performance to prefetch ahead too much. Be conservative for
now and don't prefetch ahead more than 3 iterations on Cyclone.

Reviewers: hfinkel

Subscribers: llvm-commits, mzolotukhin

Differential Revision: http://reviews.llvm.org/D17949

llvm-svn: 263772

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[LoopDataPrefetch/Aarch64] Allow selective prefetching of large-strided accesses

Summary:
And use this TTI for Cyclone. As it was explained in the original RFC
(http://thread.gmane.org/gmane.comp.c

[LoopDataPrefetch/Aarch64] Allow selective prefetching of large-strided accesses

Summary:
And use this TTI for Cyclone. As it was explained in the original RFC
(http://thread.gmane.org/gmane.comp.compilers.llvm.devel/92758), the HW
prefetcher work up to 2KB strides.

I am also adding tests for this and the previous change (D17943):

* Cyclone prefetching accesses with a large stride
* Cyclone not prefetching accesses with a small stride
* Generic Aarch64 subtarget not prefetching either

Reviewers: hfinkel

Subscribers: aemerson, rengolin, llvm-commits, mzolotukhin

Differential Revision: http://reviews.llvm.org/D17945

llvm-svn: 263771

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[LoopDataPrefetch] Add stats and debug output

llvm-svn: 262998