Update prebuilt Clang to r416183b from Android.
https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef
clang 12.0.5 (based on r416183b) from build 7284624.
Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/include/polly/CodeGen/LoopGeneratorsGOMP.h b/linux-x64/clang/include/polly/CodeGen/LoopGeneratorsGOMP.h
new file mode 100644
index 0000000..b3ff982
--- /dev/null
+++ b/linux-x64/clang/include/polly/CodeGen/LoopGeneratorsGOMP.h
@@ -0,0 +1,75 @@
+//===- LoopGeneratorsGOMP.h - IR helper to create loops ---------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains functions to create scalar and OpenMP parallel loops
+// as LLVM-IR.
+//
+//===----------------------------------------------------------------------===//
+#ifndef POLLY_LOOP_GENERATORS_GOMP_H
+#define POLLY_LOOP_GENERATORS_GOMP_H
+
+#include "polly/CodeGen/IRBuilder.h"
+#include "polly/CodeGen/LoopGenerators.h"
+#include "polly/Support/ScopHelper.h"
+#include "llvm/ADT/SetVector.h"
+
+namespace polly {
+using namespace llvm;
+
+/// This ParallelLoopGenerator subclass handles the generation of parallelized
+/// code, utilizing the GNU OpenMP library.
+class ParallelLoopGeneratorGOMP : public ParallelLoopGenerator {
+public:
+ /// Create a parallel loop generator for the current function.
+ ParallelLoopGeneratorGOMP(PollyIRBuilder &Builder, LoopInfo &LI,
+ DominatorTree &DT, const DataLayout &DL)
+ : ParallelLoopGenerator(Builder, LI, DT, DL) {}
+
+ // The functions below may be used if one does not want to generate a
+ // specific OpenMP parallel loop, but generate individual parts of it
+ // (e.g. the subfunction definition).
+
+ /// Create a runtime library call to spawn the worker threads.
+ ///
+ /// @param SubFn The subfunction which holds the loop body.
+ /// @param SubFnParam The parameter for the subfunction (basically the struct
+ /// filled with the outside values).
+ /// @param LB The lower bound for the loop we parallelize.
+ /// @param UB The upper bound for the loop we parallelize.
+ /// @param Stride The stride of the loop we parallelize.
+ void createCallSpawnThreads(Value *SubFn, Value *SubFnParam, Value *LB,
+ Value *UB, Value *Stride);
+
+ void deployParallelExecution(Function *SubFn, Value *SubFnParam, Value *LB,
+ Value *UB, Value *Stride) override;
+
+ virtual Function *prepareSubFnDefinition(Function *F) const override;
+
+ std::tuple<Value *, Function *> createSubFn(Value *Stride, AllocaInst *Struct,
+ SetVector<Value *> UsedValues,
+ ValueMapT &VMap) override;
+
+ /// Create a runtime library call to join the worker threads.
+ void createCallJoinThreads();
+
+ /// Create a runtime library call to get the next work item.
+ ///
+ /// @param LBPtr A pointer value to store the work item begin in.
+ /// @param UBPtr A pointer value to store the work item end in.
+ ///
+ /// @returns A true value if the work item is not empty.
+ Value *createCallGetWorkItem(Value *LBPtr, Value *UBPtr);
+
+ /// Create a runtime library call to allow cleanup of the thread.
+ ///
+ /// @note This function is called right before the thread will exit the
+ /// subfunction and only if the runtime system depends on it.
+ void createCallCleanupThread();
+};
+} // end namespace polly
+#endif