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18063707b5
This new OSSA invariant simplifies many optimizations because they don't have to take care of the corner case of incomplete lifetimes in dead-end blocks. The implementation basically consists of these changes: * add the lifetime completion utility * add a flag in SILFunction which tells optimization that they need to run the lifetime completion utility * let all optimizations complete lifetimes if necessary * enable the ownership verifier to check complete lifetimes
50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
//===--- OwnershipVerifierStateDumper.cpp ---------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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///
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/// This is a simple utility pass that verifies the ownership of all SILValue in
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/// a module with a special flag set that causes the verifier to emit textual
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/// errors instead of asserting. This is done one function at a time so that we
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/// can number the errors as we emit them so in FileCheck tests, we can be 100%
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/// sure we exactly matched the number of errors.
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///
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/Assertions.h"
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#include "swift/SIL/BasicBlockUtils.h"
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#include "swift/SIL/SILFunction.h"
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#include "swift/SIL/SILInstruction.h"
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#include "swift/SILOptimizer/Analysis/DeadEndBlocksAnalysis.h"
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#include "swift/SILOptimizer/PassManager/Passes.h"
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#include "swift/SILOptimizer/PassManager/Transforms.h"
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using namespace swift;
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//===----------------------------------------------------------------------===//
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// Top Level Entrypoint
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//===----------------------------------------------------------------------===//
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namespace {
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class OwnershipVerifierTextualErrorDumper : public SILFunctionTransform {
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void run() override {
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getFunction()->verifyOwnership();
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}
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};
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} // end anonymous namespace
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SILTransform *swift::createOwnershipVerifierTextualErrorDumper() {
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return new OwnershipVerifierTextualErrorDumper();
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}
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