[OPENMP50]Support for imperfectly nested loops.

Added support for imperfectly nested loops introduced in OpenMP 5.0.

[OPENMP]Fix PR43516: Compiler crash with collapse(2) on non-rectangular
loop.

Missed check if the condition is also dependent when building final
expressions for the collapsed loop directives.

llvm

[OPENMP]Fix PR43516: Compiler crash with collapse(2) on non-rectangular
loop.

Missed check if the condition is also dependent when building final
expressions for the collapsed loop directives.

llvm-svn: 373348

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[OPENMP5]Use nonmonotonic modifier by default for non-static and
non-ordered loops.

According to OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Desription, If the static schedule kind is specified or

[OPENMP5]Use nonmonotonic modifier by default for non-static and
non-ordered loops.

According to OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Desription, If the static schedule kind is specified or if the ordered clause is specified, and if the nonmonotonic modifier is not specified, the effect is as if the monotonic modifier is specified. Otherwise, unless the monotonic modifier is specified, the effect is as if the nonmonotonic modifier is specified.
The first part of this requirement is implemented in runtime. Patch adds
support for the second, nonmonotonic, part of this requirement.

llvm-svn: 369801

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[OPENMP]Support for non-rectangular loops.

Added basic support for non-rectangular loops. It requires an additional
analysis of min/max boundaries for non-rectangular loops. Since only
linear depend

[OPENMP]Support for non-rectangular loops.

Added basic support for non-rectangular loops. It requires an additional
analysis of min/max boundaries for non-rectangular loops. Since only
linear dependency is allowed, we can do this analysis.

llvm-svn: 368903

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[OPENMP]Make the loop with unsigned counter countable.

According to the report, better to keep the original strict compare
operation as the loop condition with unsigned loop counters to make the
loo

[OPENMP]Make the loop with unsigned counter countable.

According to the report, better to keep the original strict compare
operation as the loop condition with unsigned loop counters to make the
loop countable. This allows further loop transformations.

llvm-svn: 352526

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[OpenMP] Avoid remainder operations for loop index values on a collapsed loop nest.

Summary: Change the strategy for computing loop index variables after collapsing a loop nest via the collapse clau

[OpenMP] Avoid remainder operations for loop index values on a collapsed loop nest.

Summary: Change the strategy for computing loop index variables after collapsing a loop nest via the collapse clause by replacing the expensive remainder operation with multiplications and additions.

Reviewers: ABataev, caomhin

Reviewed By: ABataev

Subscribers: guansong, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D56413

llvm-svn: 350759

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[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata.

Instead of generating llvm.mem.parallel_loop_access metadata, generate
llvm.access.group on instruct

[CodeGen] Generate llvm.loop.parallel_accesses instead of llvm.mem.parallel_loop_access metadata.

Instead of generating llvm.mem.parallel_loop_access metadata, generate
llvm.access.group on instructions and llvm.loop.parallel_accesses on
loops. There is one access group per generated loop.

This is clang part of D52116/r349725.

Differential Revision: https://reviews.llvm.org/D52117

llvm-svn: 349823

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[OpenMP] Update CHECK-DAG usage in for_codegen.cpp

This patch adjusts a test not to depend on deprecated FileCheck
behavior that permits overlapping matches within a block of CHECK-DAG
directives.

[OpenMP] Update CHECK-DAG usage in for_codegen.cpp

This patch adjusts a test not to depend on deprecated FileCheck
behavior that permits overlapping matches within a block of CHECK-DAG
directives. Thus, this patch also removes uses of FileCheck's
-allow-deprecated-dag-overlap command-line option.

Specifically, the FileCheck variables DBG_LOC_START, DBG_LOC_END, and
DBG_LOC_CANCEL were all set to the same value. As a result, three
TERM_DEBUG-DAG patterns, one for each variable, all matched the same
text under the old overlapping behavior. Under the new
non-overlapping behavior, that's not permitted. This patch's solution
is to replace these variables with one variable and replace these
patterns with one pattern.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D54764

llvm-svn: 347350

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[OPENMP] Create non-const ident_t objects.

Currently ident_t objects are created const when debug info is not
enabled, but the libittnotify libray in the OpenMP runtime writes to
the reserved_2 fiel

[OPENMP] Create non-const ident_t objects.

Currently ident_t objects are created const when debug info is not
enabled, but the libittnotify libray in the OpenMP runtime writes to
the reserved_2 field (See __kmp_itt_region_forking in
openmp/runtime/src/kmp_itt.inl). Now create ident_t objects non-const.

Differential Revision: https://reviews.llvm.org/D51331

llvm-svn: 340934

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[FileCheck] Add -allow-deprecated-dag-overlap to failing clang tests

See https://reviews.llvm.org/D47106 for details.

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D47172

[FileCheck] Add -allow-deprecated-dag-overlap to failing clang tests

See https://reviews.llvm.org/D47106 for details.

Reviewed By: probinson

Differential Revision: https://reviews.llvm.org/D47172

llvm-svn: 336844

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[OPENMP] General code improvements.

llvm-svn: 330140

[OPENMP] Fix lifetime of the loop counters.

We may emit incorrect lifetime info during codegen for loop counters in
OpenMP constructs because of automatic scope cleanup when we needed
temporarily lo

[OPENMP] Fix lifetime of the loop counters.

We may emit incorrect lifetime info during codegen for loop counters in
OpenMP constructs because of automatic scope cleanup when we needed
temporarily locations for private loop counters.

llvm-svn: 326922

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[OPENMP] Support for -fopenmp-simd option with compilation of simd loops
only.

Added support for -fopenmp-simd option that allows compilation of
simd-based constructs without emission of OpenMP runt

[OPENMP] Support for -fopenmp-simd option with compilation of simd loops
only.

Added support for -fopenmp-simd option that allows compilation of
simd-based constructs without emission of OpenMP runtime calls.

llvm-svn: 321560

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[OPENMP] Simplify codegen for loop iteration variables in loop preamble.

Initial patch could cause trouble in the optimized code because of the
incorrectly generated lifetime intrinsics.

llvm-svn:

[OPENMP] Simplify codegen for loop iteration variables in loop preamble.

Initial patch could cause trouble in the optimized code because of the
incorrectly generated lifetime intrinsics.

llvm-svn: 320191

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[OPENMP] Fix PR35486: crash when collapsing loops with dependent iteration spaces.

Though it is incorrect from point of view of OpenMP standard to have
dependent iteration space in OpenMP loops, com

[OPENMP] Fix PR35486: crash when collapsing loops with dependent iteration spaces.

Though it is incorrect from point of view of OpenMP standard to have
dependent iteration space in OpenMP loops, compiler should not crash.
Patch fixes this problem.

llvm-svn: 319700

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[OPENMP] Fix PR35156: Get correct thread id with windows exceptions.

If the thread id is requested in windows mode within funclets, we may
generate incorrect function call that could lead to broken

[OPENMP] Fix PR35156: Get correct thread id with windows exceptions.

If the thread id is requested in windows mode within funclets, we may
generate incorrect function call that could lead to broken codegen.

llvm-svn: 317208

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[OPENMP] Fix for PR33922: New ident_t flags for
__kmpc_for_static_fini().

Added special flags for calls of __kmpc_for_static_fini(), like previous
ly for __kmpc_for_static_init(). Added flag OMP_IDE

[OPENMP] Fix for PR33922: New ident_t flags for
__kmpc_for_static_fini().

Added special flags for calls of __kmpc_for_static_fini(), like previous
ly for __kmpc_for_static_init(). Added flag OMP_IDENT_WORK_DISTRIBUTE
for distribute cnstruct, OMP_IDENT_WORK_SECTIONS for sections-based
constructs and OMP_IDENT_WORK_LOOP for loop-based constructs in
location flags.

llvm-svn: 312642

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[OPENMP] Fix the test, NFC.

llvm-svn: 312296

[OPENMP] Fix for PR34398: assert with random access iterator if the
step>1.

If the loop is a loot with random access iterators and the iteration
construct is represented it += n, then the compiler c

[OPENMP] Fix for PR34398: assert with random access iterator if the
step>1.

If the loop is a loot with random access iterators and the iteration
construct is represented it += n, then the compiler crashed because of
reusing of the same MaterializedTemporaryExpr around N. Patch fixes it
by using the expression as written, without any special kind of
wrappings.

llvm-svn: 312292

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[OPRNMP] Fix for PR33445: ICE: OpenMP target containing ordered for.

If exceptions are enabled, there may be a problem with the codegen of
the finalization functions from OpenMP runtime. It happens

[OPRNMP] Fix for PR33445: ICE: OpenMP target containing ordered for.

If exceptions are enabled, there may be a problem with the codegen of
the finalization functions from OpenMP runtime. It happens because of
the problem with the getting of thread identifier value. Patch tries to
fix it by using the result of the call of function
__kmpc_global_thread_num() rather than loading of value of outlined
function parameter.

llvm-svn: 311007

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[OPENMP] Fix for PR33922: New ident_t flags for
__kmpc_for_static_init().

OpenMP 5.0 will include OpenMP Tools interface that requires distinguishing different worksharing constructs.

Since the sam

[OPENMP] Fix for PR33922: New ident_t flags for
__kmpc_for_static_init().

OpenMP 5.0 will include OpenMP Tools interface that requires distinguishing different worksharing constructs.

Since the same entry point (__kmp_for_static_init(ident_t *loc,
kmp_int32 global_tid,........)) is called in case static
loop/sections/distribute it is suggested using 'flags' field of the
ident_t structure to pass the type of the construct.

llvm-svn: 310865

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[OPENMP] Fix for PR31416: Clang crashes on OMPCapturedExpr during source
based coverage compilation

Added source location info to captured expression declaration + fixed
source location info for loo

[OPENMP] Fix for PR31416: Clang crashes on OMPCapturedExpr during source
based coverage compilation

Added source location info to captured expression declaration + fixed
source location info for loop based directives.

llvm-svn: 290181

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Remove unnecessary x86 backend requirements from OpenMP tests

Clang can generate LLVM IR for x86 without a registered x86 backend.

llvm-svn: 284836

[OPENMP] Fix crash for 'schedule|dist_schedule' clauses during
instantiation.

Added checks for non-dependent context when trygin to capture
non-constant schedule chunk expression for proper codegen

[OPENMP] Fix crash for 'schedule|dist_schedule' clauses during
instantiation.

Added checks for non-dependent context when trygin to capture
non-constant schedule chunk expression for proper codegen of outlined
functions.

llvm-svn: 272775

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[OPENMP 4.5] Add codegen support in runtime for '[non]monotonic'
schedule modifiers.

Runtime library expects some additional data in schedule argument for
loop-based directives, that have additional

[OPENMP 4.5] Add codegen support in runtime for '[non]monotonic'
schedule modifiers.

Runtime library expects some additional data in schedule argument for
loop-based directives, that have additional schedule modifiers
'monotonic|nonmonotonic'.

llvm-svn: 269035

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