Add static pass registration

Add static pass registration and change mlir-opt to use it. Future work is needed to refactor the registration for PassManager usage.

Change build targets to alwayslink to enforce registration.

PiperOrigin-RevId: 220390178

1 files changed, 9 insertions, 0 deletions

diff --git a/mlir/lib/Transforms/PipelineDataTransfer.cpp b/mlir/lib/Transforms/PipelineDataTransfer.cpp
index c59e007e543..52052e09d7b 100644
--- a/mlir/lib/Transforms/PipelineDataTransfer.cpp
+++ b/mlir/lib/Transforms/PipelineDataTransfer.cpp
@@ -47,10 +47,14 @@ struct PipelineDataTransfer : public FunctionPass,
   // Collect all 'for' statements.
   void visitForStmt(ForStmt *forStmt) { forStmts.push_back(forStmt); }
   std::vector<ForStmt *> forStmts;
+
+  static char passID;
 };
 
 } // end anonymous namespace
 
+char PipelineDataTransfer::passID = 0;
+
 /// Creates a pass to pipeline explicit movement of data across levels of the
 /// memory hierarchy.
 FunctionPass *mlir::createPipelineDataTransferPass() {
@@ -306,3 +310,8 @@ PassResult PipelineDataTransfer::runOnForStmt(ForStmt *forStmt) {
 
   return success();
 }
+
+static PassRegistration<PipelineDataTransfer> pass(
+    "pipeline-data-transfer",
+    "Pipeline non-blocking data transfers between explicitly managed levels of "
+    "the memory hierarchy");