mirror of https://github.com/llvm/circt.git
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
//===- GoInsertion.cpp - Go Insertion Pass ----------------------*- C++ -*-===//
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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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// Contains the definitions of the Go Insertion pass.
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//
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//===----------------------------------------------------------------------===//
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#include "circt/Dialect/Calyx/CalyxHelpers.h"
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#include "circt/Dialect/Calyx/CalyxOps.h"
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#include "circt/Dialect/Calyx/CalyxPasses.h"
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#include "circt/Support/LLVM.h"
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#include "mlir/IR/BuiltinTypes.h"
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#include "mlir/IR/OperationSupport.h"
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namespace circt {
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namespace calyx {
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#define GEN_PASS_DEF_GOINSERTION
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#include "circt/Dialect/Calyx/CalyxPasses.h.inc"
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} // namespace calyx
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} // namespace circt
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using namespace circt;
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using namespace calyx;
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using namespace mlir;
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namespace {
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struct GoInsertionPass
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: public circt::calyx::impl::GoInsertionBase<GoInsertionPass> {
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void runOnOperation() override;
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};
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} // end anonymous namespace
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void GoInsertionPass::runOnOperation() {
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ComponentOp component = getOperation();
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auto wiresOp = component.getWiresOp();
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OpBuilder builder(wiresOp->getRegion(0));
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auto undefinedOp =
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builder.create<UndefinedOp>(wiresOp->getLoc(), builder.getI1Type());
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wiresOp.walk([&](GroupOp group) {
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OpBuilder builder(group->getRegion(0));
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// Since the source of a GroupOp's go signal isn't set until the
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// the Compile Control pass, use an undefined value.
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auto goOp = builder.create<GroupGoOp>(group->getLoc(), undefinedOp);
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updateGroupAssignmentGuards(builder, group, goOp);
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});
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}
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std::unique_ptr<mlir::Pass> circt::calyx::createGoInsertionPass() {
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return std::make_unique<GoInsertionPass>();
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}
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