5e50dd048e
This commit restructures how TypeID is implemented to ideally avoid the current problems related to shared libraries. This is done by changing the "implicit" fallback path to use the name of the type, instead of using a static template variable (which breaks shared libraries). The major downside to this is that it adds some additional initialization costs for the implicit path. Given the use of type names for uniqueness in the fallback, we also no longer allow types defined in anonymous namespaces to have an implicit TypeID. To simplify defining an ID for these classes, a new `MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID` macro was added to allow for explicitly defining a TypeID directly on an internal class. To help identify when types are using the fallback, `-debug-only=typeid` can be used to log which types are using implicit ids. This change generally only requires changes to the test passes, which are all defined in anonymous namespaces, and thus can't use the fallback any longer. Differential Revision: https://reviews.llvm.org/D122775
90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
//===-------- TestLoopUnrolling.cpp --- loop unrolling test pass ----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a pass to unroll loops by a specified unroll factor.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/Arithmetic/IR/Arithmetic.h"
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#include "mlir/Dialect/SCF/SCF.h"
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#include "mlir/Dialect/SCF/Utils/Utils.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/Pass/Pass.h"
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using namespace mlir;
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namespace {
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static unsigned getNestingDepth(Operation *op) {
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Operation *currOp = op;
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unsigned depth = 0;
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while ((currOp = currOp->getParentOp())) {
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if (isa<scf::ForOp>(currOp))
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depth++;
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}
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return depth;
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}
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struct TestLoopUnrollingPass
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: public PassWrapper<TestLoopUnrollingPass, OperationPass<>> {
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MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestLoopUnrollingPass)
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StringRef getArgument() const final { return "test-loop-unrolling"; }
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StringRef getDescription() const final {
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return "Tests loop unrolling transformation";
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}
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TestLoopUnrollingPass() = default;
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TestLoopUnrollingPass(const TestLoopUnrollingPass &) {}
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explicit TestLoopUnrollingPass(uint64_t unrollFactorParam,
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unsigned loopDepthParam,
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bool annotateLoopParam) {
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unrollFactor = unrollFactorParam;
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loopDepth = loopDepthParam;
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annotateLoop = annotateLoopParam;
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}
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry.insert<arith::ArithmeticDialect>();
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}
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void runOnOperation() override {
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SmallVector<scf::ForOp, 4> loops;
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getOperation()->walk([&](scf::ForOp forOp) {
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if (getNestingDepth(forOp) == loopDepth)
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loops.push_back(forOp);
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});
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auto annotateFn = [this](unsigned i, Operation *op, OpBuilder b) {
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if (annotateLoop) {
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op->setAttr("unrolled_iteration", b.getUI32IntegerAttr(i));
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}
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};
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for (auto loop : loops)
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(void)loopUnrollByFactor(loop, unrollFactor, annotateFn);
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}
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Option<uint64_t> unrollFactor{*this, "unroll-factor",
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llvm::cl::desc("Loop unroll factor."),
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llvm::cl::init(1)};
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Option<bool> annotateLoop{*this, "annotate",
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llvm::cl::desc("Annotate unrolled iterations."),
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llvm::cl::init(false)};
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Option<bool> unrollUpToFactor{*this, "unroll-up-to-factor",
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llvm::cl::desc("Loop unroll up to factor."),
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llvm::cl::init(false)};
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Option<unsigned> loopDepth{*this, "loop-depth", llvm::cl::desc("Loop depth."),
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llvm::cl::init(0)};
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};
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} // namespace
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namespace mlir {
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namespace test {
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void registerTestLoopUnrollingPass() {
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PassRegistration<TestLoopUnrollingPass>();
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}
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} // namespace test
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} // namespace mlir
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