[OPENMP] Remove extra code transformation.

For better support of some specific GNU extensions some extra
transformation of AST nodes were introduced. These transformations are
very hard to handle. T

[OPENMP] Remove extra code transformation.

For better support of some specific GNU extensions some extra
transformation of AST nodes were introduced. These transformations are
very hard to handle. The code is improved in handling of these
extensions by using captured expressions construct.

llvm-svn: 264709

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Stop messing with the 'g' group of options in CompilerInvocation.

With this change, most 'g' options are rejected by CompilerInvocation.
They remain only as Driver options. The new way to request de

Stop messing with the 'g' group of options in CompilerInvocation.

With this change, most 'g' options are rejected by CompilerInvocation.
They remain only as Driver options. The new way to request debug info
from cc1 is with "-debug-info-kind={line-tables-only|limited|standalone}"
and "-dwarf-version={2|3|4}". In the absence of a command-line option
to specify Dwarf version, the Toolchain decides it, rather than placing
Toolchain-specific logic in CompilerInvocation.

Also fix a bug in the Windows compatibility argument parsing
in which the "rightmost argument wins" principle failed.

Differential Revision: http://reviews.llvm.org/D13221

llvm-svn: 249655

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[OPENMP] Emit __kmpc_cancel_barrier() and code for 'cancellation point' only if 'cancel' is found.
Patch improves codegen for OpenMP constructs. If the OpenMP region does not have internal 'cancel' c

[OPENMP] Emit __kmpc_cancel_barrier() and code for 'cancellation point' only if 'cancel' is found.
Patch improves codegen for OpenMP constructs. If the OpenMP region does not have internal 'cancel' construct, a call to 'void __kmpc_barrier()' runtime function is generated for all implicit/explicit barriers. If the region has inner 'cancel' directive, then
```
if (__kmpc_cancel_barrier())
exit from outer construct;
```
code is generated.
Also, the code for 'canellation point' directive is not generated if parent directive does not have 'cancel' directive.

llvm-svn: 247681

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[OPENMP 4.1] Allow variables with reference types in private clauses.

OpenMP 4.1 allows to use variables with reference types in all private clauses (private, firstprivate, lastprivate, linear etc.)

[OPENMP 4.1] Allow variables with reference types in private clauses.

OpenMP 4.1 allows to use variables with reference types in all private clauses (private, firstprivate, lastprivate, linear etc.). Patch allows to use such variables and fixes codegen for linear variables with reference types.

llvm-svn: 245268

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[OPENMP] Fix for http://llvm.org/PR24371: Assert failure compiling blender 2.75.
blender uses statements expression in condition of the loop under control of the '#pragma omp parallel for'. This cond

[OPENMP] Fix for http://llvm.org/PR24371: Assert failure compiling blender 2.75.
blender uses statements expression in condition of the loop under control of the '#pragma omp parallel for'. This condition is used several times in different expressions required for codegen of the loop directive. If there are some variables defined in statement expression, it fires an assert during codegen because of redefinition of the same variables.
We have to rebuild several expression to be sure that all variables are unique.

llvm-svn: 245041

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[OPENMP 4.1] Allow references in init expression for loop-based constructs.

OpenMP 4.1 allows to use variables with reference types in private clauses and, therefore, in init expressions of the cann

[OPENMP 4.1] Allow references in init expression for loop-based constructs.

OpenMP 4.1 allows to use variables with reference types in private clauses and, therefore, in init expressions of the cannonical loop forms.

llvm-svn: 244209

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[OPENMP] Fixed detection of canonical loops with random access iterators.

Add handling of iterators with copy/move constructors with default arguments + converting template constructors.

llvm-svn:

[OPENMP] Fixed detection of canonical loops with random access iterators.

Add handling of iterators with copy/move constructors with default arguments + converting template constructors.

llvm-svn: 242382

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[OPENMP] http://llvm.org/PR24121: canonical loop rejected when comparison has implicit conversions or destruction

Allow to use complex iterators expressions in loops for C++.

llvm-svn: 242285

Revert "Revert r241620 and follow-up commits" and move the initialization
of the llvm targets from clang/CodeGen into ClangCheck.cpp and CIndex.cpp.

llvm-svn: 241653

Revert r241620 and follow-up commits while investigating linux buildbot failures.

llvm-svn: 241642

Wrap clang modules and pch files in an object file container.
This patch adds ObjectFilePCHContainerOperations uses the LLVM backend
to put the contents of a PCH into a __clangast section inside a CO

Wrap clang modules and pch files in an object file container.
This patch adds ObjectFilePCHContainerOperations uses the LLVM backend
to put the contents of a PCH into a __clangast section inside a COFF, ELF,
or Mach-O object file container.

This is done to facilitate module debugging by makeing it possible to
store the debug info for the types defined by a module alongside the AST.

rdar://problem/20091852

llvm-svn: 241620

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[OPENMP 4.0] Fixed codegen for 'cancellation point' construct.

Generate the next code for 'cancellation point':
if (__kmpc_cancellationpoint()) {
__kmpc_cancel_barrier();
<exit construct>;
}

ll

[OPENMP 4.0] Fixed codegen for 'cancellation point' construct.

Generate the next code for 'cancellation point':
if (__kmpc_cancellationpoint()) {
__kmpc_cancel_barrier();
<exit construct>;
}

llvm-svn: 241336

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[OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)

-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option tha

[OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)

-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736

llvm-svn: 237769

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[OPENMP] Generate !llvm.mem.loop_parallel_access metadata for loops with dynamic/guided scheduling.

Inner bodies of OpenMP worksharing loop-based constructs with dynamic or guided scheduling are all

[OPENMP] Generate !llvm.mem.loop_parallel_access metadata for loops with dynamic/guided scheduling.

Inner bodies of OpenMP worksharing loop-based constructs with dynamic or guided scheduling are allowed to be marked with !llvm.mem.parallel_loop_access metadata for better optimization. Worksharing constructs with static scheduling cannot be marked this way (according to OpenMP standard "A data dependence between the same logical iterations in two such loops is guaranteed").
Constructs with auto and runtime scheduling are also not marked because automatically chosen scheduling may be static also.
Differential Revision: http://reviews.llvm.org/D9518

llvm-svn: 236693

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[OPENMP] Allow to use global variables as lcv in loop-based directives.

For proper codegen we need to capture variable in the OpenMP region. In loop-based directives loop control variables are priva

[OPENMP] Allow to use global variables as lcv in loop-based directives.

For proper codegen we need to capture variable in the OpenMP region. In loop-based directives loop control variables are private by default and they must be captured in this region. There was a problem with capturing of globals, used as lcv, as they was not marked as private by default.
Differential Revision: http://reviews.llvm.org/D9336

llvm-svn: 236201

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DebugInfo: Metadata constructs now start with DI*

LLVM r236120 renamed debug info IR constructs to use a `DI` prefix, now
that the `DIDescriptor` hierarchy has been gone for about a week. This
comm

DebugInfo: Metadata constructs now start with DI*

LLVM r236120 renamed debug info IR constructs to use a `DI` prefix, now
that the `DIDescriptor` hierarchy has been gone for about a week. This
commit was generated using the rename-md-di-nodes.sh upgrade script
attached to PR23080, followed by running clang-format-diff.py on the
`lib/` portion of the patch.

llvm-svn: 236121

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[OPENMP] Fix use of unsigned counters in loops with zero trip count.

Patch fixes bugs in codegen for loops with unsigned counters and zero trip count. Previously preconditions for all loops were bui

[OPENMP] Fix use of unsigned counters in loops with zero trip count.

Patch fixes bugs in codegen for loops with unsigned counters and zero trip count. Previously preconditions for all loops were built using logic (Upper - Lower) > 0. But if the loop is a loop with zero trip count, then Upper - Lower is < 0 only for signed integer, for unsigned we're running into an underflow situation.
In this patch we're using original Lower<Upper condition to check that loop body can be executed at least once. Also this allows to skip code generation for loops, if it is known that preconditions for the loop are always false.
Differential Revision: http://reviews.llvm.org/D9103

llvm-svn: 235500

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[OPENMP] Improved codegen for implicit/explicit 'barrier' constructs.

Replace boolean IsExplicit parameter of OpenMPRuntime::emitBarrierCall() method by OpenMPDirectiveKind Kind for better compatibi

[OPENMP] Improved codegen for implicit/explicit 'barrier' constructs.

Replace boolean IsExplicit parameter of OpenMPRuntime::emitBarrierCall() method by OpenMPDirectiveKind Kind for better compatibility with the runtime library. Also add processing of 'nowait' clause on worksharing directives.
Differential Revision: http://reviews.llvm.org/D8659

llvm-svn: 233511

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[OPENMP] CodeGen - 'omp for' with dynamic schedule kinds.
Differential Revision: http://reviews.llvm.org/D7138

llvm-svn: 232036

[OPENMP] Fixed tests for non-debug builds. NFC.

llvm-svn: 231758

[OPENMP] Improved code for generating debug info + generation of all OpenMP regions in termination scope
Patch adds proper generation of debug info for all OpenMP regions. Also, all OpenMP regions ar

[OPENMP] Improved code for generating debug info + generation of all OpenMP regions in termination scope
Patch adds proper generation of debug info for all OpenMP regions. Also, all OpenMP regions are generated in a termination scope, because standard does not allow to throw exceptions out of structured blocks, associated with the OpenMP regions
Differential Revision: http://reviews.llvm.org/D7935

llvm-svn: 231757

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Revert "[OPENMP] Improved code for generating debug info + generation of all OpenMP regions in termination scope Patch adds proper generation of debug info for all OpenMP regions. Also, all OpenMP re

Revert "[OPENMP] Improved code for generating debug info + generation of all OpenMP regions in termination scope Patch adds proper generation of debug info for all OpenMP regions. Also, all OpenMP regions are generated in a termination scope, because standard does not allow to throw exceptions out of structured blocks, associated with the OpenMP regions Differential Revision: http://reviews.llvm.org/D7935"

This reverts commit r231752.

It was failing to link with cmake:

lib64/libclangCodeGen.a(CGOpenMPRuntime.cpp.o):/home/espindola/llvm/llvm/tools/clang/lib/CodeGen/CGOpenMPRuntime.cpp:function clang::CodeGen::InlinedOpenMPRegionRAII::~InlinedOpenMPRegionRAII(): error: undefined reference to 'clang::CodeGen::EHScopeStack::popTerminate()'
clang-3.7: error: linker command failed with exit code 1 (use -v to see invocation)

llvm-svn: 231754

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[OPENMP] Improved code for generating debug info + generation of all OpenMP regions in termination scope
Patch adds proper generation of debug info for all OpenMP regions. Also, all OpenMP regions ar

[OPENMP] Improved code for generating debug info + generation of all OpenMP regions in termination scope
Patch adds proper generation of debug info for all OpenMP regions. Also, all OpenMP regions are generated in a termination scope, because standard does not allow to throw exceptions out of structured blocks, associated with the OpenMP regions
Differential Revision: http://reviews.llvm.org/D7935

llvm-svn: 231752

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Update Clang tests to handle explicitly typed load changes in LLVM.

llvm-svn: 230795

[OPENMP] Fixed codegen for directives without function outlining.
Fixed crash on codegen for directives like 'omp for', 'omp single' etc. inside of the 'omp parallel', 'omp task' etc. regions.

llvm-

[OPENMP] Fixed codegen for directives without function outlining.
Fixed crash on codegen for directives like 'omp for', 'omp single' etc. inside of the 'omp parallel', 'omp task' etc. regions.

llvm-svn: 230621

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