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9e0b1d127b
This simplifies the representation and if one wants to truly get an owned value from an undef, just copy the undef value.
31 lines
987 B
C++
31 lines
987 B
C++
//===--- SILUndef.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 - 2018 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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#include "swift/SIL/SILUndef.h"
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#include "swift/SIL/SILModule.h"
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using namespace swift;
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SILUndef::SILUndef(SILType type)
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: ValueBase(ValueKind::SILUndef, type, IsRepresentative::Yes) {}
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SILUndef *SILUndef::get(SILType ty, SILModule &m) {
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SILUndef *&entry = m.UndefValues[ty];
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if (entry == nullptr)
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entry = new (m) SILUndef(ty);
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return entry;
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}
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SILUndef *SILUndef::get(SILType ty, const SILFunction &f) {
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return SILUndef::get(ty, f.getModule());
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}
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