5aeb604c7c
As part of this extension this change also does some general cleanup 1) Make all the methods take `RewriterBase` as arguments instead of creating their own builders that tend to crash when used within pattern rewrites 2) Split `coalesePerfectlyNestedLoops` into two separate methods, one for `scf.for` and other for `affine.for`. The templatization didnt seem to be buying much there. Also general clean up of tests.
55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
//===- LoopCoalescing.cpp - Pass transforming loop nests into single loops-===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "mlir/Dialect/Affine/Passes.h"
|
|
|
|
#include "mlir/Dialect/Affine/IR/AffineOps.h"
|
|
#include "mlir/Dialect/Affine/LoopUtils.h"
|
|
#include "mlir/Dialect/Arith/IR/Arith.h"
|
|
#include "mlir/Dialect/Func/IR/FuncOps.h"
|
|
#include "mlir/Dialect/SCF/IR/SCF.h"
|
|
#include "mlir/Dialect/SCF/Utils/Utils.h"
|
|
#include "mlir/Transforms/Passes.h"
|
|
#include "mlir/Transforms/RegionUtils.h"
|
|
#include "llvm/Support/Debug.h"
|
|
|
|
namespace mlir {
|
|
namespace affine {
|
|
#define GEN_PASS_DEF_LOOPCOALESCING
|
|
#include "mlir/Dialect/Affine/Passes.h.inc"
|
|
} // namespace affine
|
|
} // namespace mlir
|
|
|
|
#define PASS_NAME "loop-coalescing"
|
|
#define DEBUG_TYPE PASS_NAME
|
|
|
|
using namespace mlir;
|
|
using namespace mlir::affine;
|
|
|
|
namespace {
|
|
struct LoopCoalescingPass
|
|
: public affine::impl::LoopCoalescingBase<LoopCoalescingPass> {
|
|
|
|
void runOnOperation() override {
|
|
func::FuncOp func = getOperation();
|
|
func.walk<WalkOrder::PreOrder>([](Operation *op) {
|
|
if (auto scfForOp = dyn_cast<scf::ForOp>(op))
|
|
(void)coalescePerfectlyNestedSCFForLoops(scfForOp);
|
|
else if (auto affineForOp = dyn_cast<AffineForOp>(op))
|
|
(void)coalescePerfectlyNestedAffineLoops(affineForOp);
|
|
});
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
std::unique_ptr<OperationPass<func::FuncOp>>
|
|
mlir::affine::createLoopCoalescingPass() {
|
|
return std::make_unique<LoopCoalescingPass>();
|
|
}
|