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9 Commits

Author SHA1 Message Date
Sourabh Singh Tomar
d2f1f53043 [flang][OpenMP] Place the insertion point to the start of the block 
After skeleton of the `Parallel Op` is created set the insertion point to start of the block. So that later `CodeGen` can proceed.

Note: This patch reflects the work that can be upstreamed from PR(merged)
PR: https://github.com/flang-compiler/f18-llvm-project/pull/424

Reviewed By: schweitz, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D88221
 2020-09-25 23:56:41 +05:30
Sourabh Singh Tomar
dfa9065ad7 [NFCI][flang] Renamed a variable name to a more descriptive name 2020-09-23 18:21:05 +05:30
Sourabh Singh Tomar
34b08487f0 [OpenMP][flang]Lower NUM_THREADS clause for parallel construct 
This patch reflects the work that can be upstreamed from PR(merged)
PR: https://github.com/flang-compiler/f18-llvm-project/pull/411

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D87846
 2020-09-23 17:57:25 +05:30
Sourabh Singh Tomar
bf812c145c [flang][OpenMP] Added initial support for lowering OpenMP parallel construct 
This patch lower `!OMP PARALLEL` construct from PFT to OpenMPDialect operations.
This is first patch in this direction(lowering parallel construct).

OpenMP parallel construct can have multiple clauses and parameters. This patch
only implements lowering of an empty(contains no code in body) parallel construct
without any clauses or parameters.

Patch is carved out of following approved PR:
https://github.com/flang-compiler/f18-llvm-project/pull/322

Reviewed By: kiranchandramohan, DavidTruby

Differential Revision: https://reviews.llvm.org/D84965
 2020-07-31 23:59:46 +05:30
Sourabh Singh Tomar
9e4ab439c2 [flang][OpenMP] Added support for lowering OpenMP taskyield construct 
Summary:
This patch lower `!OMP TASKYIELD` construct from PFT to
OpenMPDialect operations.
Construct is lowered with conformance to OpenMP 5.0 spec.

Patch is carved out of following merged PR:
https://github.com/flang-compiler/f18-llvm-project/pull/297

Reviewed: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D84350
 2020-07-23 07:16:34 +05:30
Sourabh Singh Tomar
079b49b3fb [flang][OpenMP] Added support for lowering OpenMP taskwait construct 
Summary:
This patch lower `!OMP TASKWAIT` construct from PFT to
OpenMPDialect operations.
Construct is lowered with conformance to OpenMP 4.5 spec.

Patch is carved out of following approved PR:
https://github.com/flang-compiler/f18-llvm-project/pull/280

Reviewed By: kiranchandramohan, clementval

Differential Revision: https://reviews.llvm.org/D83983
 2020-07-17 20:01:54 +05:30
Sourabh Singh Tomar
3d0b76022d [flang][OpenMP] upstream OpenMP lowering 
Summary:
This patch implements lowering of OpenMP barrier construct from
pft to OpenMPDialect.

Patch is carved out of following merged PR's from fir-dev branch
of https://github.com/flang-compiler/f18-llvm-project/

PR's:
https://github.com/flang-compiler/f18-llvm-project/pull/248
https://github.com/flang-compiler/f18-llvm-project/pull/251

Unfortunately primary tool `bbc` for functional validation is not
yet upstreamed. So this patch includes a unittest for lowering
`!OMP barrier` construct.

Some part of the these PR's still remains downstream(functional test
and dialect registration to legalizer) for obvious reasons.
Will upstream them when the dependencies are upstreamed.

Reviewed By: schweitz, kiranchandramohan

Differential Revision: https://reviews.llvm.org/D83659
 2020-07-14 18:01:15 +05:30
Eric Schweitz
c3477c51e5 [flang] Add CHARACTER type lowering helpers and runtime. 
In order for these files to build properly, this patch rolls up a number of changes that have been made to various files that have been upstreamed.

Implementations for the interfaces included in Bridge.h and IntrinsicCall.h will be included in a future diff.

Differential revision: https://reviews.llvm.org/D82608
 2020-06-26 11:01:52 -07:00
Eric Schweitz
ae6e499d25 [flang] This adds the lowering stubs for Open MP. 
The lowering bridge will call these lowering hooks to process the Open
MP directives that it iterates over in the PFT.  This is a mock
interface without an implementation in this patch.

Reviewed By: kiranchandramohan

Differential Revision: https://reviews.llvm.org/D80815
 2020-06-01 09:11:53 -07:00