Commit r355068 "Fix IR/Analysis layering issue with OptBisect" uses the
template

   return Gate.isEnabled() && !Gate.shouldRunPass(this, getDescription(...));

for all pass kinds. For the RegionPass, it left out the not operator,
causing region passes to be skipped as soon as a pass gate is used.

llvm-svn: 355733

OptBisect is in IR due to LLVMContext using it.  However, it uses IR units from
Analysis as well.  This change moves getDescription functions from OptBisect
to their respective IR units.  Generating names for IR units will now be up
to the callers, keeping the Analysis IR units in Analysis.  To prevent
unnecessary string generation, isEnabled function is added so that callers know
when the description needs to be generated.

Differential Revision: https://reviews.llvm.org/D58406

llvm-svn: 355068

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

Moving PassTimingInfo from legacy pass manager code into a separate header.
Making it suitable for both legacy and new pass manager.
Adding a test on -time-passes main functionality.

llvm-svn: 340872

    
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

Summary:
This is an NFC refactoring of the OptBisect class to split it into an optional pass gate interface used by LLVMContext and the Optional Pass Bisector (OptBisect) used for debugging of optional passes.

This refactoring is needed for D44464, which introduces setOptPassGate() method to allow implementations other than OptBisect.

Patch by Yevgeny Rouban.

Reviewers: andrew.w.kaylor, fedor.sergeev, vsk, dberlin, Eugene.Zelenko, reames, skatkov
Reviewed By: fedor.sergeev
Differential Revision: https://reviews.llvm.org/D44821

llvm-svn: 328637

llvm-svn: 320617

Commit r297442 introduced mixed CRLF/LF line endings to two files.
Normalize to to LF-only line endings.

llvm-svn: 311774

This is necessary to get opt-bisect working with polly.

Differential Revision: https://reviews.llvm.org/D33751

llvm-svn: 304476

llvm-svn: 297442

Commits r291882 and related r291887.

llvm-svn: 292062

This was forgotten in r291882. Without this fix, the Polly build bots are
broken.

llvm-svn: 291887

No functional change is intended.

llvm-svn: 276000

No functionality change.

llvm-svn: 234963

llvm-svn: 232998

-debug-pass is not specified, as the string is only used when dumping pass
information.  There is a big cost of determining the name in
ReginBase<Tr>:getNameStr() if the region's entry or exit block doesn't have a
name.  This is the case for the Release build, as names are not preserved by the
front-end.

RegionPass is mainly used by Polly, resulting in long compile time for one file
of a customer application with the Release build (1m24s) vs Release+Asserts
build (10s) when Polly is used.  With this change, the compile time with the
Release build went down to 8s.

Patch by Sanjin Sijaric <ssijaric@codeaurora.org>!
Phabricator: http://reviews.llvm.org/D8076

llvm-svn: 231485

utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

llvm-svn: 225974

llvm-svn: 213456

Instead of asserting, output a message stating that a null pointer was found.

llvm-svn: 211430

never be true in a well-defined context.  The checking for null pointers
has been moved into the caller logic so it does not rely on undefined behavior.

llvm-svn: 210497

definition below all the header #include lines, lib/Analysis/...
edition.

This one has a bit extra as there were *other* #define's before #include
lines in addition to DEBUG_TYPE. I've sunk all of them as a block.

llvm-svn: 206843

 lib/Analysis/IPA/InlineCost.cpp         |   18 ------------------
 lib/Analysis/RegionPass.cpp             |    1 -
 lib/Analysis/TypeBasedAliasAnalysis.cpp |    1 -
 lib/Transforms/Scalar/LoopUnswitch.cpp  |   21 ---------------------
 lib/Transforms/Utils/LCSSA.cpp          |    2 --
 lib/Transforms/Utils/LoopSimplify.cpp   |    6 ------
 utils/TableGen/AsmWriterEmitter.cpp     |   13 -------------
 utils/TableGen/DFAPacketizerEmitter.cpp |    7 -------
 utils/TableGen/IntrinsicEmitter.cpp     |    2 --
 9 files changed, 71 deletions(-)

llvm-svn: 206506

llvm-svn: 206310

[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.

llvm-svn: 206243

llvm-svn: 202945

This also switches the users in LLVM to ensure this functionality is tested.

llvm-svn: 202705

llvm-svn: 162672

add a new Region::block_iterator which actually iterates over the basic
blocks of the region.

The old iterator, now call 'block_node_iterator' iterates over
RegionNodes which contain a single basic block. This works well with the
GraphTraits-based iterator design, however most users actually want an
iterator over the BasicBlocks inside these RegionNodes. Now the
'block_iterator' is a wrapper which exposes exactly this interface.
Internally it uses the block_node_iterator to walk all nodes which are
single basic blocks, but transparently unwraps the basic block to make
user code simpler.

While this patch is a bit of a wash, most of the updates are to internal
users, not external users of the RegionInfo. I have an accompanying
patch to Polly that is a strict simplification of every user of this
interface, and I'm working on a pass that also wants the same simplified
interface.

This patch alone should have no functional impact.

llvm-svn: 156202

Patch by Xiaoyi Guo!

llvm-svn: 138737

llvm-svn: 138701

Patch by Xiaoyi Guo!

llvm-svn: 138695

llvm-svn: 130920

Thanks Peter for pointing me to something that should have never been
committed to the llvm code base.

llvm-svn: 121648

A RegionPass is executed like a LoopPass but on the regions detected by the
RegionInfo pass instead of the loops detected by the LoopInfo pass.

llvm-svn: 116905