triton/test/lib/Analysis/TestMembar.cpp

#include "mlir/Dialect/GPU/GPUDialect.h"
#include "mlir/IR/Dialect.h"
#include "mlir/Pass/Pass.h"
#include "triton/Analysis/Allocation.h"
#include "triton/Analysis/Membar.h"

using namespace mlir;

namespace {

struct TestMembarPass
    : public PassWrapper<TestMembarPass, OperationPass<FuncOp>> {

  // LLVM15+
  // MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestMembarPass);

  StringRef getArgument() const final { return "test-print-membar"; }
  StringRef getDescription() const final {
    return "print the result of the allocation pass";
  }

  void runOnOperation() override {
    Operation *operation = getOperation();
    auto &os = llvm::errs();
    // Convert to std::string can remove quotes from op_name
    auto op_name = SymbolTable::getSymbolName(operation).getValue().str();
    os << op_name << "\n";
    Allocation allocation(operation);
    MembarAnalysis membarPass(&allocation);
    membarPass.run();

    size_t operationId = 0;
    operation->walk<WalkOrder::PreOrder>([&](Operation *op) {
      if (isa<gpu::BarrierOp>(op)) {
        os << "Membar " << operationId << "\n";
      }
      if (op->getNumRegions() == 0) {
        // Don't count parent Operation to simplify the test.
        operationId++;
      }
      return;
    });
  }
};

} // namespace

namespace mlir {
namespace test {
void registerTestMembarPass() { PassRegistration<TestMembarPass>(); }
} // namespace test
} // namespace mlir