[PATCH] D90048: [flang][OpenMP] Upstream lowering of `ParallelOp` clauses

[Sourabh Singh Tomar via Phabricator via llvm-commits]

SouraVX created this revision.
SouraVX added reviewers: kiranchandramohan, schweitz, clementval, kiranktp, sameeranjoshi.
SouraVX added projects: LLVM, Flang.
Herald added subscribers: llvm-commits, jdoerfert, guansong, yaxunl.
SouraVX requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added a subscriber: sstefan1.

Note: This patch reflects the work that can be upstreamed from PR's(merged):

- https://github.com/flang-compiler/f18-llvm-project/pull/476


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D90048

Files:
  flang/lib/Lower/OpenMP.cpp


Index: flang/lib/Lower/OpenMP.cpp
===================================================================
--- flang/lib/Lower/OpenMP.cpp
+++ flang/lib/Lower/OpenMP.cpp
@@ -104,7 +104,17 @@
             genOMP(converter, eval, simpleStandaloneConstruct);
           },
           [&](const Fortran::parser::OpenMPFlushConstruct &flushConstruct) {
-            TODO();
+            SmallVector<Value, 4> operandRange;
+            if (auto &ompObjectList =
+                    std::get<std::optional<Fortran::parser::OmpObjectList>>(
+                        flushConstruct.t))
+              genObjectList(*ompObjectList, converter, operandRange);
+            if (auto &flushMemoryClause = std::get<
+                    std::optional<Fortran::parser::OmpFlushMemoryClause>>(
+                    flushConstruct.t))
+              TODO("Handle OmpFlushMemoryClause");
+            converter.getFirOpBuilder().create<mlir::omp::FlushOp>(
+                converter.getCurrentLocation(), operandRange);
           },
           [&](const Fortran::parser::OpenMPCancelConstruct &cancelConstruct) {
             TODO("");


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