mlir/test/lib/Dialect/MemRef/TestMultiBuffer.cpp

   1 //===- TestComposeSubView.cpp - Test composed subviews --------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "mlir/Dialect/Affine/IR/AffineOps.h"
  10 #include "mlir/Dialect/MemRef/Transforms/Passes.h"
  11 #include "mlir/Dialect/MemRef/Transforms/Transforms.h"
  12
  13 #include "mlir/Dialect/MemRef/IR/MemRef.h"
  14 #include "mlir/Pass/Pass.h"
  15
  16 using namespace mlir;
  17
  18 namespace {
  19 struct TestMultiBufferingPass
  20     : public PassWrapper<TestMultiBufferingPass, OperationPass<>> {
  21   MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestMultiBufferingPass)
  22
  23   TestMultiBufferingPass() = default;
  24   TestMultiBufferingPass(const TestMultiBufferingPass &pass)
  25       : PassWrapper(pass) {}
  26   void getDependentDialects(DialectRegistry &registry) const override {
  27     registry.insert<affine::AffineDialect>();
  28   }
  29   StringRef getArgument() const final { return "test-multi-buffering"; }
  30   StringRef getDescription() const final {
  31     return "Test multi buffering transformation";
  32   }
  33   void runOnOperation() override;
  34   Option<unsigned> multiplier{
  35       *this, "multiplier",
  36       llvm::cl::desc(
  37           "Decide how many versions of the buffer should be created,"),
  38       llvm::cl::init(2)};
  39 };
  40
  41 void TestMultiBufferingPass::runOnOperation() {
  42   SmallVector<memref::AllocOp> allocs;
  43   getOperation()->walk(
  44       [&allocs](memref::AllocOp alloc) { allocs.push_back(alloc); });
  45   for (memref::AllocOp alloc : allocs)
  46     (void)multiBuffer(alloc, multiplier);
  47 }
  48 } // namespace
  49
  50 namespace mlir {
  51 namespace test {
  52 void registerTestMultiBuffering() {
  53   PassRegistration<TestMultiBufferingPass>();
  54 }
  55 } // namespace test
  56 } // namespace mlir