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343d842394
This patch removes all references to DebugValueAddrInst class and debug_value_addr instruction in textual SIL files.
91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
//===--- DebugOptUtils.h --------------------------------------------------===//
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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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/// Debug Info related utilities that rely on code in SILOptimizer/ and thus can
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/// not be in include/swift/SIL/DebugUtils.h.
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///
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SILOPTIMIZER_DEBUGOPTUTILS_H
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#define SWIFT_SILOPTIMIZER_DEBUGOPTUTILS_H
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#include "swift/SIL/DebugUtils.h"
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#include "swift/SIL/SILValue.h"
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#include "swift/SILOptimizer/Utils/InstOptUtils.h"
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namespace swift {
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/// Deletes all of the debug instructions that use \p value.
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inline void deleteAllDebugUses(SILValue value, InstModCallbacks &callbacks) {
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for (auto ui = value->use_begin(), ue = value->use_end(); ui != ue;) {
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auto *inst = ui->getUser();
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++ui;
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if (inst->isDebugInstruction()) {
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callbacks.deleteInst(inst);
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}
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}
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}
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/// Deletes all of the debug uses of any result of \p inst.
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inline void deleteAllDebugUses(SILInstruction *inst,
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InstModCallbacks &callbacks) {
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for (SILValue v : inst->getResults()) {
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deleteAllDebugUses(v, callbacks);
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}
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}
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/// Transfer debug info associated with (the result of) \p I to a
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/// new `debug_value` instruction before \p I is deleted.
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void salvageDebugInfo(SILInstruction *I);
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/// Erases the instruction \p I from it's parent block and deletes it, including
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/// all debug instructions which use \p I.
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/// Precondition: The instruction may only have debug instructions as uses.
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/// If the iterator \p InstIter references any deleted instruction, it is
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/// incremented.
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///
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/// \p callbacks InstModCallback to use.
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///
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/// Returns an iterator to the next non-deleted instruction after \p I.
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inline SILBasicBlock::iterator
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eraseFromParentWithDebugInsts(SILInstruction *inst,
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InstModCallbacks callbacks = InstModCallbacks()) {
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auto nextII = std::next(inst->getIterator());
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auto results = inst->getResults();
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bool foundAny;
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do {
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foundAny = false;
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for (auto result : results) {
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while (!result->use_empty()) {
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foundAny = true;
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auto *user = result->use_begin()->getUser();
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assert(user->isDebugInstruction());
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if (nextII == user->getIterator())
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++nextII;
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callbacks.deleteInst(user);
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}
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}
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} while (foundAny);
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// Just matching what eraseFromParentWithDebugInsts is today.
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if (nextII == inst->getIterator())
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++nextII;
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swift::salvageDebugInfo(inst);
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callbacks.deleteInst(inst, false /*do not notify*/);
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return nextII;
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}
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} // namespace swift
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#endif
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