forked from OSchip/llvm-project
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
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//===- Inliner.cpp - Pass to inline function calls ------------------------===//
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//
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// Copyright 2019 The MLIR Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// =============================================================================
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#include "mlir/Dialect/StandardOps/Ops.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/IR/Function.h"
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#include "mlir/IR/Module.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Transforms/InliningUtils.h"
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#include "mlir/Transforms/Passes.h"
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#include "llvm/ADT/StringSet.h"
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using namespace mlir;
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// TODO(riverriddle) This pass should currently only be used for basic testing
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// of inlining functionality.
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namespace {
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struct Inliner : public ModulePass<Inliner> {
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void runOnModule() override {
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auto module = getModule();
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// Collect each of the direct function calls within the module.
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SmallVector<CallOp, 16> callOps;
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for (auto &f : module)
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f.walk([&](CallOp callOp) { callOps.push_back(callOp); });
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// Build the inliner interface.
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InlinerInterface interface(&getContext());
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// Try to inline each of the call operations.
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for (auto &call : callOps) {
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if (failed(inlineFunction(
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interface, module.lookupSymbol<FuncOp>(call.getCallee()), call,
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llvm::to_vector<8>(call.getArgOperands()),
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llvm::to_vector<8>(call.getResults()), call.getLoc())))
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continue;
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// If the inlining was successful then erase the call.
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call.erase();
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}
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}
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};
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} // end anonymous namespace
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static PassRegistration<Inliner> pass("inline", "Inline function calls");
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