[llvm-branch-commits] [mlir] [mlir][OpenMP][NFC] clean up optional reduction region parsing (PR #105644)

[Tom Eccles via llvm-branch-commits]

https://github.com/tblah created 
https://github.com/llvm/llvm-project/pull/105644

This can be handled in ODS instead of writing custom parsing/printing code.

Thanks for the idea @skatrak

>From 84f097c970c751ad6779ce6d09baad854568c4b3 Mon Sep 17 00:00:00 2001
From: Tom Eccles <tom.ecc...@arm.com>
Date: Thu, 22 Aug 2024 11:36:11 +0000
Subject: [PATCH] [mlir][OpenMP][NFC] clean up optional reduction region
 parsing

This can be handled in ODS instead of writing custom parsing/printing
code.

Thanks for the idea @skatrak
---
 mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td |  6 +--
 mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp  | 46 -------------------
 2 files changed, 3 insertions(+), 49 deletions(-)

diff --git a/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td 
b/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
index 739b1f67be7cb2..5a7dae0b5f3074 100644
--- a/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
+++ b/mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
@@ -1576,11 +1576,11 @@ def DeclareReductionOp : OpenMP_Op<"declare_reduction", 
[IsolatedFromAbove,
                         AnyRegion:$cleanupRegion);
 
   let assemblyFormat = "$sym_name `:` $type attr-dict-with-keyword "
-                       "custom<AllocReductionRegion>($allocRegion) "
+                       "( `alloc` $allocRegion^ )? "
                        "`init` $initializerRegion "
                        "`combiner` $reductionRegion "
-                       "custom<AtomicReductionRegion>($atomicReductionRegion) "
-                       "custom<CleanupReductionRegion>($cleanupRegion)";
+                       "( `atomic` $atomicReductionRegion^ )? "
+                       "( `cleanup` $cleanupRegion^ )? ";
 
   let extraClassDeclaration = [{
     PointerLikeType getAccumulatorType() {
diff --git a/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp 
b/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
index 273f49b8b12b67..eb4f9cb041841b 100644
--- a/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
+++ b/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
@@ -1883,52 +1883,6 @@ LogicalResult DistributeOp::verify() {
 // DeclareReductionOp
 
//===----------------------------------------------------------------------===//
 
-static ParseResult parseOptionalReductionRegion(OpAsmParser &parser,
-                                                Region &region,
-                                                StringRef keyword) {
-  if (parser.parseOptionalKeyword(keyword))
-    return success();
-  return parser.parseRegion(region);
-}
-
-static void printOptionalReductionRegion(OpAsmPrinter &printer, Region &region,
-                                         StringRef keyword) {
-  if (region.empty())
-    return;
-  printer << keyword << " ";
-  printer.printRegion(region);
-}
-
-static ParseResult parseAllocReductionRegion(OpAsmParser &parser,
-                                             Region &region) {
-  return parseOptionalReductionRegion(parser, region, "alloc");
-}
-
-static void printAllocReductionRegion(OpAsmPrinter &printer,
-                                      DeclareReductionOp op, Region &region) {
-  printOptionalReductionRegion(printer, region, "alloc");
-}
-
-static ParseResult parseAtomicReductionRegion(OpAsmParser &parser,
-                                              Region &region) {
-  return parseOptionalReductionRegion(parser, region, "atomic");
-}
-
-static void printAtomicReductionRegion(OpAsmPrinter &printer,
-                                       DeclareReductionOp op, Region &region) {
-  printOptionalReductionRegion(printer, region, "atomic");
-}
-
-static ParseResult parseCleanupReductionRegion(OpAsmParser &parser,
-                                               Region &region) {
-  return parseOptionalReductionRegion(parser, region, "cleanup");
-}
-
-static void printCleanupReductionRegion(OpAsmPrinter &printer,
-                                        DeclareReductionOp op, Region &region) 
{
-  printOptionalReductionRegion(printer, region, "cleanup");
-}
-
 LogicalResult DeclareReductionOp::verifyRegions() {
   if (!getAllocRegion().empty()) {
     for (YieldOp yieldOp : getAllocRegion().getOps<YieldOp>()) {

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