- Update documentation now that the move to monorepo has been made
- Do not tie compiler extension testing to LLVM_BUILD_EXAMPLES
- No need to specify LLVM libraries for plugins
- Add NO_MODULE option to match Polly specific requirements (i.e. building the
module *and* linking it statically)
- Issue a warning when building the compiler extension with
LLVM_BYE_LINK_INTO_TOOLS=ON, as it modifies the behavior of clang, which only
makes sense for testing purpose.
Still mark llvm/test/Feature/load_extension.ll as XFAIL because of a
ManagedStatic dependency that's going to be fixed in a seperate commit.
Differential Revision: https://reviews.llvm.org/D72327
Configure CMake to setup source-groups for Polly. Source groups
describe how source files should be organized in IDEs. By default, all
headers are dumped into one folder under PollyCore and all source files
into another. On disk, these files are organized into folders, but this
isn't reflected in the IDE. This change uses CMake source groups to have
the IDE reflect the on disk layout. This will make it easier to visualize
the project structure for users of Visual Studio and XCode
Patch by Christopher Tetreault <ctetreau@quicinc.com>
Reviewed By: Meinersbur, grosser
Differential Revision: https://reviews.llvm.org/D72117
There's quite a lot of references to Polly in the LLVM CMake codebase. However
the registration pattern used by Polly could be useful to other external
projects: thanks to that mechanism it would be possible to develop LLVM
extension without touching the LLVM code base.
This patch has two effects:
1. Remove all code specific to Polly in the llvm/clang codebase, replaicing it
with a generic mechanism
2. Provide a generic mechanism to register compiler extensions.
A compiler extension is similar to a pass plugin, with the notable difference
that the compiler extension can be configured to be built dynamically (like
plugins) or statically (like regular passes).
As a result, people willing to add extra passes to clang/opt can do it using a
separate code repo, but still have their pass be linked in clang/opt as built-in
passes.
Differential Revision: https://reviews.llvm.org/D61446
Previously, the polly unit tests were stuck in a infinite loop.
There was an edge case in StringRef::count() introduced by 9f6b13e5cc, where an empty 'Str' would cause the function to never exit.
Also fixed usage in polly.
Adapt for 05da2fe521 "Sink all InitializePasses.h includes" which
forgot the GPGPU files (presumably because POLLY_ENABLE_GPGPU_CODEGEN
is OFF by default).
Avoids the need to include TargetMachine.h from various places just for
an enum. Various other enums live here, such as the optimization level,
TLS model, etc. Data suggests that this change probably doesn't matter,
but it seems nice to have anyway.
This file lists every pass in LLVM, and is included by Pass.h, which is
very popular. Every time we add, remove, or rename a pass in LLVM, it
caused lots of recompilation.
I found this fact by looking at this table, which is sorted by the
number of times a file was changed over the last 100,000 git commits
multiplied by the number of object files that depend on it in the
current checkout:
recompiles touches affected_files header
342380 95 3604 llvm/include/llvm/ADT/STLExtras.h
314730 234 1345 llvm/include/llvm/InitializePasses.h
307036 118 2602 llvm/include/llvm/ADT/APInt.h
213049 59 3611 llvm/include/llvm/Support/MathExtras.h
170422 47 3626 llvm/include/llvm/Support/Compiler.h
162225 45 3605 llvm/include/llvm/ADT/Optional.h
158319 63 2513 llvm/include/llvm/ADT/Triple.h
140322 39 3598 llvm/include/llvm/ADT/StringRef.h
137647 59 2333 llvm/include/llvm/Support/Error.h
131619 73 1803 llvm/include/llvm/Support/FileSystem.h
Before this change, touching InitializePasses.h would cause 1345 files
to recompile. After this change, touching it only causes 550 compiles in
an incremental rebuild.
Reviewers: bkramer, asbirlea, bollu, jdoerfert
Differential Revision: https://reviews.llvm.org/D70211
Commit 395124 "NVPTX: Don't insert an extra empty line at the end of the last section"
changed the length of the kernel payload. Update the regression test to the new binary size.
Root cause is VectorBlockGenerator::copyStmt iterates all instructions
in basic block, however some load instructions may be not unnecessary
thus removed by simplification. As a result, these load instructions
don't have a corresponding array.
Looking at BlockGenerator::copyBB, it only iterates instructions list
of ScopStmt. Given it must be a block type scop in case of
vectorization, I think we should do the same in
VectorBlockGenerator::copyStmt.
Patch by bin.narwal <bin.narwal@gmail.com>
Differential Revision: https://reviews.llvm.org/D70076
ScopBuilder::buildEqivClassBlockStmts creates ScopStmts for instruction
groups in basic block and inserts these ScopStmts into Scop::StmtMap,
however, as described in llvm.org/PR38358, comment #5, StmtScops are
inserted into vector ScopStmt[BB] in wrong order. As a result,
ScopBuilder::buildSchedule creates wrong order sequence node.
Looking closer to code, it's clear there is no equivalent classes with
interleaving isOrderedInstruction(memory access) instructions after
joinOrderedInstructions. Afterwards, ScopStmts need to be created and
inserted in the original order of memory access instructions, however,
at the moment ScopStmts are inserted in the order of leader instructions
which are probably not memory access instructions.
The fix is simple with a standalone loop scanning
isOrderedInstruction(memory access) instructions in basic block and
inserting elements into LeaderToInstList one by one. The patch also
removes double reversing operations which are now unnecessary.
New test preserve-equiv-class-order-in-basic_block.ll is also added.
Differential Revision: https://reviews.llvm.org/D68941
llvm-svn: 375192
Since the removal of extensions nodes from schedule trees in r362257 it
is possible to emit parallel code for SCoPs containing
matrix-multiplications. However, the code looking for references used in
outlined statement was not prepared to handle CopyStmts introduced by
the matrix-matrix multiplication detection.
In this case, CopyStmts do not introduce references in addition to the
ones captured by MemoryAccesses, i.e. we change the assertion to accept
CopyStmts and add a regression test for this case.
This fixes llvm.org/PR43164
llvm-svn: 372188
lib/Transform/ScheduleOptimizer.cpp fails to compile on Solaris, both on the 9.x
branch (first noticed when running test-release.sh without -no-polly) and on trunk:
/var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/lib/Transform/ScheduleOptimizer.cpp: In function ‘MicroKernelParamsTy getMicroKernelParams(const llvm::TargetTransformInfo*, polly::MatMulInfoTy)’:
/var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/lib/Transform/ScheduleOptimizer.cpp:914:62: error: call of overloaded ‘sqrt(long unsigned int)’ is ambiguous
914 | ceil(sqrt(Nvec * LatencyVectorFma * ThroughputVectorFma) / Nvec) * Nvec;
| ^
In file included from /usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/math.h:24,
from /usr/gcc/9/include/c++/9.1.0/cmath:45,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm-c/DataTypes.h:28,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm/Support/DataTypes.h:16,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm/ADT/Hashing.h:47,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm/ADT/ArrayRef.h:12,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/include/polly/ScheduleOptimizer.h:12,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/lib/Transform/ScheduleOptimizer.cpp:48:
/usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/iso/math_iso.h:220:21: note: candidate: ‘long double std::sqrt(long double)’
220 | inline long double sqrt(long double __X) { return __sqrtl(__X); }
| ^~~~
/usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/iso/math_iso.h:186:15:
note: candidate: ‘float std::sqrt(float)’
186 | inline float sqrt(float __X) { return __sqrtf(__X); }
| ^~~~
/usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/iso/math_iso.h:74:15:
note: candidate: ‘double std::sqrt(double)’
74 | extern double sqrt __P((double));
| ^~~~
/var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/lib/Transform/ScheduleOptimizer.cpp:915:67:
error: call of overloaded ‘ceil(long unsigned int)’ is ambiguous
915 | int Mr = ceil(Nvec * LatencyVectorFma * ThroughputVectorFma / Nr);
| ^
In file included from /usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/math.h:24,
from /usr/gcc/9/include/c++/9.1.0/cmath:45,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm-c/DataTypes.h:28,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm/Support/DataTypes.h:16,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm/ADT/Hashing.h:47,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/include/llvm/ADT/ArrayRef.h:12,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/include/polly/ScheduleOptimizer.h:12,
from /var/llvm/llvm-9.0.0-rc4/rc4/llvm.src/tools/polly/lib/Transform/ScheduleOptimizer.cpp:48:
/usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/iso/math_iso.h:196:21: note: candidate: ‘long double std::ceil(long double)’
196 | inline long double ceil(long double __X) { return __ceill(__X); }
| ^~~~
/usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/iso/math_iso.h:160:15:
note: candidate: ‘float std::ceil(float)’
160 | inline float ceil(float __X) { return __ceilf(__X); }
| ^~~~
/usr/gcc/9/lib/gcc/x86_64-pc-solaris2.11/9.1.0/include-fixed/iso/math_iso.h:76:15:
note: candidate: ‘double std::ceil(double)’
76 | extern double ceil __P((double));
| ^~~~
Fixed by adding casts to disambiguate, checked that it now compiles on both
amd64-pc-solaris2.11 and sparcv9-sun-solaris2.11 and on x86_64-pc-linux-gnu.
Differential Revision: https://reviews.llvm.org/D67442
llvm-svn: 371825
Function joinOrderedInstructions merges instructions when a leader is encountered twice.
It also notices that leaders in SeenLeaders may lose their leadership in previous merging,
and tries to handle the case using following code:
Instruction *PrevLeader = UnionFind.getLeaderValue(SeenLeaders.back());
However, this is wrong because it always gets leader for the last element of SeenLeaders,
and I believe it's wrong even we get leader for Prev here. As a result, Statements in cases
like the one in patch aren't merged as expected. After investigation, I believe it's
unnecessary to get leader instruction at all. This is based on fact: Although leaders in
SeenLeaders could lose leadership, they only lose to others in SeenLeaders, in other words,
one existing leader will be chosen as new leader of merged equivalent statements. We can
take advantage of this and simply check if current leader equals to Prev and break merging
if it does.
The patch also adds a new test.
Patch by bin.narwal <bin.narwal@gmail.com>
Differential Revision: https://reviews.llvm.org/D67007
llvm-svn: 371801
When reading code of Dependences::calculateDependences, I noticed that
WAR is computed specifically by buildWAR. Given ISL now
supports "kills" in approximate dataflow analysis, this patch takes
advantage of it.
This patch also cleans up a couple lines redundant codes.
Patch by bin.narwal <bin.narwal@gmail.com>
Differential Revision: https://reviews.llvm.org/D66741
llvm-svn: 370396
The while loop iterating parent loop in ScopBuilder::buildDomains is
unnecessary because either L or LD are later unused, this is a simple
patch removing it.
Patch by bin.narwal <bin.narwal@gmail.com>
Differential Revision: https://reviews.llvm.org/D66698
llvm-svn: 370368
When reading code in ScopBuilder::buildEqivClassBlockStmts, I think the
main statement flag computation can be simplified, here is the patch.
It's based on two simple facts that:
1. Instruction won't be removed once it's inserted into UnionFind.
2. Main statement must be set if there is non-trivial statement besides the last one.
The patch also saves std::find call.
Patch by bin.narwal <bin.narwal@gmail.com>
Differential Revision: https://reviews.llvm.org/D66477
llvm-svn: 369972
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
llvm-svn: 368935
Scope of changes:
1) Moved buildDomains function to ScopBuilder class.
2) Moved buildDomainsWithBranchConstraints function to ScopBuilder class.
3) Moved propagateDomainConstraints to ScopBuilder class.
4) Moved propagateDomainConstraintsToRegionExit to ScopBuilder class.
5) Moved propagateInvalidStmtDomains to ScopBuilder class.
6) Moved getPredecessorDomainConstraints function to ScopBuilder class.
7) Moved addLoopBoundsToHeaderDomain function to ScopBuilder class.
8) Moved getPwAff function to ScopBuilder class.
9) Moved buildConditionSets functions to ScopBuilder class.
10) Added updateMaxLoopDepth, notifyErrorBlock, getOrInitEmptyDomain, isDomainDefined, setDomain functions to Scop class. They are used by ScopBuilder.
11) Moved helper functions: getRegionNodeBasicBlock, getRegionNodeSuccessor, containsErrorBlock, createNextIterationMap, collectBoundedParts, partitionSetParts, buildConditionSet to ScopBuilder.cpp file.
Differential Revision: https://reviews.llvm.org/D65729
llvm-svn: 368100
Scope of changes:
1) Moved addUserAssumptions function to ScopBuilder class.
2) Moved buildConditionSets functions to polly namespace.
3) Moved getRepresentingInvariantLoadSCEV to public section of the Scop class
Differential Revision: https://reviews.llvm.org/D65241
llvm-svn: 368089
Scope of changes:
1. Moved buildSchedule functions to ScopBuilder.
2. Moved combineInSequence function to ScopBuilder.
3. Moved mapToDimension function to ScopBuilder.
4. Moved LoopStackTy to ScopBuilder.
5. Moved getLoopSurroundingScop to ScopHelper.
6. Moved getNumBlocksInLoop to ScopHelper.
7. Moved getNumBlocksInRegionNode to ScopHelper.
8. Moved getRegionNodeLoop to ScopHelper.
Differential Revision: https://reviews.llvm.org/D64223
llvm-svn: 366377
Scope of changes:
1) Moved finalizeAccesses to ScopBuilder
2) Moved updateAccessDimensionality to ScopBuilder
3) Moved foldSizeConstantsToRight to ScopBuilder
4) Moved foldSizeConstantsToRight to ScopBuilder
5) Moved assumeNoOutOfBounds to ScopBuilder
6) Moved markFortranArrays to ScopBuilder
7) Added iterator range for AccessFunctions vector.
Differential Revision: https://reviews.llvm.org/D63794
llvm-svn: 366374
Scope of changes:
1) Moved addUserContext to ScopBuilder.
2) Moved command line option UserContextStr to ScopBuilder.
Differential Revision: https://reviews.llvm.org/D63740
llvm-svn: 366266
Scope of changes:
1) Moved buildAliasChecks to ScopBuilder.
2) Moved buildAliasGroup to ScopBuilder.
3) Moved buildAliasGroups to ScopBuilder.
4) Moved buildAliasGroupsForAccesses to ScopBuilder.
5) Moved splitAliasGroupsByDomain to ScopBuilder.
6) Moved addNonEmptyDomainConstraints to ScopBuilder.
7) Moved buildMinMaxAccess to ScopBuilder.
8) Moved calculateMinMaxAccess to ScopBuilder.
9) Moved getAccessDomain to ScopBuilder.
10) Moved command line options used only by buildAliasChecks functions to ScopBuilder.
11) Refactored buildAliasGroup function. Added addAliasGroup function to Scop class for pushing back calculated min/max accesses.
12) Added function incrementNumberOfAliasingAssumptions which increments number of statistic variable AssumptionsAliasing. AssumptionsAliasing variable is defined by STATISTIC macro inside ScopInfo.cpp and it is also used by function trackAssumption from Scop class.
13) Added reference to OptimizationRemarkEmitter to ScopBuilder class.
14) Moved calculateMinMaxAccess function to ScopBuilder class.
Differential Revision: https://reviews.llvm.org/D63693
llvm-svn: 366262
Scope of changes:
1) Moved addRecordedAssumptions to ScopBuilder.
2) Moved Assumption struct outside Scop class.
3) Refactored addRecordedAssumptions function. Replaced while loop by
for range loop.
4) Added function to clear processed Assumptions.
Differential Revision: https://reviews.llvm.org/D63572
llvm-svn: 366260
The Loads.h API changed so that a Type parameter is now mandatory in
preparation for pointer types being opaque. Unfortunately I don't build
polly routinely and it still had some uses. This just provides the
(obvious) load type in each case.
llvm-svn: 365470
https://reviews.llvm.org/D61934, committed as r362687, r363540, r363364
and r363147, made some emitted instruction nus/nsw. Add these falgs to
Polly's regression tests.
This should fix
Polly :: Isl/CodeGen/partial_write_in_region_with_loop.ll
Polly :: Isl/CodeGen/scev_expansion_in_nonaffine.ll
llvm-svn: 363599
FunctionAnalysisManagerModuleProxy started to be used by the
AlwaysInlinerPass in r363287 and therefore had to be registered in the
New PassManager.
Should fix the regression tests
Polly :: ScopInliner/invariant-load-func.ll
Polly :: ScopInliner/simple-inline-loop.ll
llvm-svn: 363572
Moved addInvariantLoads and functions listed below to ScopBuilder:
isAParameter
canAlwaysBeHoisted
These functions were referenced only by getNonHoistableCtx.
Moved CLI parameter PollyAllowDereferenceOfAllFunctionParams to
ScopBuilder.
Added iterator range through InvariantEquivClasses.
Patch by Dominik Adamski <adamski.dominik@gmail.com>
Differential Revision: https://reviews.llvm.org/D63172
llvm-svn: 363216
This review is based on review: https://reviews.llvm.org/D62925 . It is
part of moving hoistInvariantLoads function and all functions referenced
only by hoistInvariantLoads to ScopBuilder.
Moved getNonHoistableCtx and functions listed below to ScopBuilder:
isRequiredInvariantLoad
hasNonHoistableBasePtrInScop
isAccessRangeTooComplex
These functions were referenced only by getNonHoistableCtx.
MaxDimensionsInAccessRange and MaxDisjunctsInDomain constant is marked
as extern and it is added to polly namespace. It is used by Scop and
ScopBuilder classes.
MaxDimensionsInAccessRange constant moved to ScopBuilder. It is not used
outside ScopBuilder.
Patch by Dominik Adamski <adamski.dominik@gmail.com>
Differential Revision: https://reviews.llvm.org/D63066
llvm-svn: 363214
Refactor Scop and ScopBuilder class:
1. Move hoistInvariantLoads function from Scop to ScopBuilder class.
2. Private functions (addInvariantLoads, getNonHoistableCtx) are moved
to public section of Scop class. hoistInvariantLoads function
references these functions. These functions will be moved to
ScopBuilder as well in the next steps.
Patch by Dominik Adamski <adamski.dominik@gmail.com>
Differential Revision: https://reviews.llvm.org/D62925
llvm-svn: 363121
Refactor Scop and ScopBuilder class. Move canonicalizeDynamicsBasePtrs
and corresponding static functions from ScopInfo.cpp to ScopBuilder.cpp
Patch by Dominik Adamski <adamski.dominik@gmail.com>
Differential Revision: https://reviews.llvm.org/D62781
llvm-svn: 362554
Extension nodes make schedule trees are less flexible: Many operations,
such as rescheduling, do not work on such schedule trees with extension.
As such, some functionality such as determining parallel loops in isl's
AST are disabled.
Currently, only the pattern-matching generalized matrix-matrix
multiplication optimization adds extension nodes (to add copy-in
statements).
This patch removes all extension nodes as the last step of the schedule
optimization by hoisting the extension node's added domain up to the
root domain node. All following passes can assume that schedule trees
work without restrictions, including the parallelism test. Mark the
outermost loop of the optimized matrix-matrix multiplication as parallel
such that -polly-parallel is able to parallelize that loop.
Differential Revision: https://reviews.llvm.org/D58202
llvm-svn: 362257
Refactor Scop and ScopBuilder class. Move
buildInvariantEquivalenceClasses function from Scop class to ScopBuilder
class.
Patch by: Dominik Adamski <adamski.dominik@gmail.com>
Differential Revision: https://reviews.llvm.org/D62351
llvm-svn: 361902
isl_map_from_union_map cannot determine the map's space if the union_map
is empty. polly::singleton was designed for this case. We pass the
expected map space to avoid crashing in isl_map_from_union_map.
This fixes an issue found by the aosp buildbot. Thanks to Eli Friedman
for the reproducer.
llvm-svn: 361290
At the end of a region statement, the PHINode must be generated
while the current IRBuilder's block is the region's exit node. For
obvious reasons: The PHINode references the region's exiting block.
A partial write would insert new control flow, i.e. insert new basic
blocks between the exiting blocks and the current block.
We fix this by generating the PHI nodes (region exit values) before
generating any MemoryAccess's stores.
This should fix the AOSP buildbot.
Reported-by: Eli Friedman <efriedma@quicinc.com>
llvm-svn: 361204
Fix scan-analyzer issue:
Value stored to 'WARMemAccesses' during its initialization is never read
Patch by Dominik Adamski <adamski.dominik@gmail.com>
Signed-off-by: Dominik Adamski <adamski.dominik@gmail.com>
llvm-svn: 361196
The iteration order of OutsideLoopIterations matters for
IslNodeBuilder::getReferencesInSubtree, which inserts the values from
the map into a SetVector, which is eventually used to construct the
type of the context for parallel loops.
llvm-svn: 360723
In certain cases, it's possible for delinearization to decide one of the
array dimensions should be some function of an induction variable inside
the scop. Make sure if this happens, we refuse to use those dimensions
for delinearization.
Usually, we end up rejecting the scop before it actually crashes, but it
looks like it's possible to slip past other checks in certain cases
involving smax expressions.
Fixes a crash that started showing up this week on the polly AOSP
builder. As far as I can tell, this is a longstanding issue, though;
it was just exposed by better SCEV analysis of smin expressions.
Differential Revision: https://reviews.llvm.org/D61807
llvm-svn: 360708
PHI nodes (reads) could point to multiple instances of predecessor
blocks (PHI writes) when in an invalid context. Fix by removing PHI
instances that are in an invalid or ouside assumed context.
This fixes llvm.org/PR41656.
llvm-svn: 360454
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
Split out from D59749. The current implementation of isWrappedSet()
doesn't do what it says on the tin, and treats ranges like
[X, Max] as wrapping, because they are represented as [X, 0) when
using half-inclusive ranges. This also makes it inconsistent with
the semantics of isSignWrappedSet().
This patch renames isWrappedSet() to isUpperWrapped(), in preparation
for the introduction of a new isWrappedSet() method with corrected
behavior.
llvm-svn: 357107
Compiling with -polly-target=hybrid was causing Polly to occur two times
in the pipeline. The reason was how the ManagedMemoryRewritePass was
registered in the pass manager. ManagedMemoryRewritePass being a
ModulePass was forcing all previous passes to get recomputed. This
commit avoids Polly to appear two times in the pipeline registering the
ManagedMemoryRewritePass later in the pass manager.
Patch by Lorenzo Chelini <l.chelini@icloud.com>
Differential Revision: https://reviews.llvm.org/D59263
llvm-svn: 356965
The ParallelLoopGenerator class is changed such that GNU OpenMP specific
code was removed, allowing to use it as super class in a
template-pattern. Therefore, the code has been reorganized and one may
not use the ParallelLoopGenerator directly anymore, instead specific
implementations have to be provided. These implementations contain the
library-specific code. As such, the "GOMP" (code completely taken from
the existing backend) and "KMP" variant were created.
For "check-polly" all tests that involved "GOMP": equivalents were added
that test the new functionalities, like static scheduling and different
chunk sizes. "docs/UsingPollyWithClang.rst" shows how the alternative
backend may be used.
Patch by Michael Halkenhäuser <michaelhalk@web.de>
Differential Revision: https://reviews.llvm.org/D59100
llvm-svn: 356434
This fixes most references to the paths:
llvm.org/svn/
llvm.org/git/
llvm.org/viewvc/
github.com/llvm-mirror/
github.com/llvm-project/
reviews.llvm.org/diffusion/
to instead point to https://github.com/llvm/llvm-project.
This is *not* a trivial substitution, because additionally, all the
checkout instructions had to be migrated to instruct users on how to
use the monorepo layout, setting LLVM_ENABLE_PROJECTS instead of
checking out various projects into various subdirectories.
I've attempted to not change any scripts here, only documentation. The
scripts will have to be addressed separately.
Additionally, I've deleted one document which appeared to be outdated
and unneeded:
lldb/docs/building-with-debug-llvm.txt
Differential Revision: https://reviews.llvm.org/D57330
llvm-svn: 352514
all missed!
Thanks to Alex Bradbury for pointing this out, and the fact that I never
added the intended `legacy` anchor to the developer policy. Add that
anchor too. With hope, this will cause the links to all resolve
successfully.
llvm-svn: 351731
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.
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: 351648
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
This installs the new developer policy and moves all of the license
files across all LLVM projects in the monorepo to the new license
structure. The remaining projects will be moved independently.
Note that I've left odd formatting and other idiosyncracies of the
legacy license structure text alone to make the diff easier to read.
Critically, note that we do not in any case *remove* the old license
notice or terms, as that remains necessary until we finish the
relicensing process.
I've updated a few license files that refer to the LLVM license to
instead simply refer generically to whatever license the LLVM project is
under, basically trying to minimize confusion.
This is really the culmination of so many people. Chris led the
community discussions, drafted the policy update and organized the
multi-year string of meeting between lawyers across the community to
figure out the strategy. Numerous lawyers at companies in the community
spent their time figuring out initial answers, and then the Foundation's
lawyer Heather Meeker has done *so* much to help refine and get us ready
here. I could keep going on, but I just want to make sure everyone
realizes what a huge community effort this has been from the begining.
Differential Revision: https://reviews.llvm.org/D56897
llvm-svn: 351631
compiler identification lines in test-cases.
(Doing so only because it's then easier to search for references which
are actually important and need fixing.)
llvm-svn: 351200
CMake generates the exports file wrongly if the CMAKE_BUILD_TYPE is
unset for multi-configuration generators.
The generated file lib/cmake/polly/PollyExports-all.cmake then contains:
set_target_properties(LLVMPolly PROPERTIES
IMPORTED_LOCATION_ my_build_dir/lib/LLVMPolly.so)
set_target_properties(Polly PROPERTIES
IMPORTED_LOCATION_ my_build_dir/lib/libPolly.a)
This patch conditionalizes the underscore.
Patch by: Marcin Copik
Differential Revision: D53376
llvm-svn: 346231
This patch should not introduce any behavior changes. It consists of
mostly one of two changes:
1. Replacing fall through comments with the LLVM_FALLTHROUGH macro
2. Inserting 'break' before falling through into a case block consisting
of only 'break'.
We were already using this warning with GCC, but its warning behaves
slightly differently. In this patch, the following differences are
relevant:
1. GCC recognizes comments that say "fall through" as annotations, clang
doesn't
2. GCC doesn't warn on "case N: foo(); default: break;", clang does
3. GCC doesn't warn when the case contains a switch, but falls through
the outer case.
I will enable the warning separately in a follow-up patch so that it can
be cleanly reverted if necessary.
Reviewers: alexfh, rsmith, lattner, rtrieu, EricWF, bollu
Differential Revision: https://reviews.llvm.org/D53950
llvm-svn: 345882
This removes the primary remaining API producing `TerminatorInst` which
will reduce the rate at which code is introduced trying to use it and
generally make it much easier to remove the remaining APIs across the
codebase.
Also clean up some of the stragglers that the previous mechanical update
of variables missed.
Users of LLVM and out-of-tree code generally will need to update any
explicit variable types to handle this. Replacing `TerminatorInst` with
`Instruction` (or `auto`) almost always works. Most of these edits were
made in prior commits using the perl one-liner:
```
perl -i -ple 's/TerminatorInst(\b.* = .*getTerminator\(\))/Instruction\1/g'
```
This also my break some rare use cases where people overload for both
`Instruction` and `TerminatorInst`, but these should be easily fixed by
removing the `TerminatorInst` overload.
llvm-svn: 344504
IslAst could mark two nested outer loops as "OutermostParallel". It
caused that the code generator tried to OpenMP-parallelize both loops,
which it is not prepared loop.
It was because the recursive AST build algorithm managed a flag
"InParallelFor" to ensure that no nested loop is also marked as
"OutermostParallel". Unfortunatetly the same flag was used by nodes
marked as SIMD, and reset to false after the SIMD node. Since loops can
be marked as SIMD inside "OutermostParallel" loops, the recursive
algorithm again tried to mark loops as "OutermostParellel" although
still nested inside another "OutermostParallel" loop.
The fix exposed another bug: The function "astScheduleDimIsParallel" was
only called when a loop was potentially "OutermostParallel" or
"InnermostParallel", but as a side-effect also determines the minimum
dependence distance. Hence, changing when we need to know whether a loop
is "OutermostParallel" also changed which loop was annotated with
"#pragma minimal dependence distance".
Moreover, some complex condition linked with "InParallelFor" determined
whether a loop should be an "InnermostParallel" loop. It missed some
situations where it would not use mark as such although being inside an
SIMD mark node, and therefore not be annotated using "#pragma simd".
The changes in particular:
1. Split the "InParallelFor" flag into an "InParallelFor" and an
"InSIMD" flag.
2. Unconditionally call "astScheduleDimIsParallel" for its side-effects
and store the result in "InParallel" for later use.
3. Simplify the condition when a loop is "InnermostParallel".
Fixes llvm.org/PR33153 and llvm.org/PR38073.
llvm-svn: 343212
The general-purpose add() now sometimes adds unexpected loop-variant
pointers to the AliasSetTracker, so certain loops would be rejected with
-polly-allow-modref-calls. Use addUnknown() instead, which has the old
behavior.
I'm not completely convinced the resulting behavior is actually
correct: ScopDetection::isValidAccess seems to mostly ignore
"unknown" instructions in the AliasSetTracker. But it's not any worse
than what was happening before.
Committing without pre-commit review to unbreak the buildbots; the
following tests were failing:
test/ScopInfo/mod_ref_access_pointee_arguments.ll
test/ScopInfo/mod_ref_read_pointee_arguments.ll
test/ScopInfo/multidim_2d_with_modref_call_2.ll
llvm-svn: 342010
Summary:
Update all rdtscp callsites in PerfMonitor so that they conform with the signature changes introduced in r341698.
Reviewers: grosser, bollu
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D51928
llvm-svn: 341946
This is a bit awkward in a handful of places where we didn't even have
an instruction and now we have to see if we can build one. But on the
whole, this seems like a win and at worst a reasonable cost for removing
`TerminatorInst`.
All of this is part of the removal of `TerminatorInst` from the
`Instruction` type hierarchy.
llvm-svn: 340701
The method AliasSetTracker::getAliasSetForPointer was removed and replaced by AliasSetTracker::getAliasSetFor for the restructuring in r339930.
Since Polly uses AliasSetTracker::getAliasSetForPointer, a temporary fix has been committed in r339937 with a comment:
Can someone from polly please migrate usage and then delete the wrapper?
This commit is doing exactly that.
llvm-svn: 340072
We upstreamed the export of isl_val_2exp, to the official cpp bindings.
In this process, we concluded that pow2 is a better and more widely used
name for this functionality. Hence, both the official isl-cpp bindings
and our derived variant use now the term pow2.
llvm-svn: 339312
Hans Wennborg