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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
135 lines
4.0 KiB
C++
135 lines
4.0 KiB
C++
//===-- DebugLoc.cpp - Implement DebugLoc class ---------------------------===//
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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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#include "llvm/IR/DebugLoc.h"
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#include "LLVMContextImpl.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/IR/DebugInfo.h"
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using namespace llvm;
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//===----------------------------------------------------------------------===//
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// DebugLoc Implementation
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//===----------------------------------------------------------------------===//
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DebugLoc::DebugLoc(const DILocation *L) : Loc(const_cast<DILocation *>(L)) {}
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DebugLoc::DebugLoc(const MDNode *L) : Loc(const_cast<MDNode *>(L)) {}
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DILocation *DebugLoc::get() const {
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return cast_or_null<DILocation>(Loc.get());
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}
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unsigned DebugLoc::getLine() const {
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assert(get() && "Expected valid DebugLoc");
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return get()->getLine();
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}
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unsigned DebugLoc::getCol() const {
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assert(get() && "Expected valid DebugLoc");
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return get()->getColumn();
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}
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MDNode *DebugLoc::getScope() const {
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assert(get() && "Expected valid DebugLoc");
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return get()->getScope();
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}
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DILocation *DebugLoc::getInlinedAt() const {
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assert(get() && "Expected valid DebugLoc");
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return get()->getInlinedAt();
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}
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MDNode *DebugLoc::getInlinedAtScope() const {
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return cast<DILocation>(Loc)->getInlinedAtScope();
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}
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DebugLoc DebugLoc::getFnDebugLoc() const {
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// FIXME: Add a method on \a DILocation that does this work.
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const MDNode *Scope = getInlinedAtScope();
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if (auto *SP = getDISubprogram(Scope))
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return DebugLoc::get(SP->getScopeLine(), 0, SP);
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return DebugLoc();
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}
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bool DebugLoc::isImplicitCode() const {
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if (DILocation *Loc = get()) {
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return Loc->isImplicitCode();
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}
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return true;
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}
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void DebugLoc::setImplicitCode(bool ImplicitCode) {
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if (DILocation *Loc = get()) {
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Loc->setImplicitCode(ImplicitCode);
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}
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}
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DebugLoc DebugLoc::get(unsigned Line, unsigned Col, const MDNode *Scope,
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const MDNode *InlinedAt, bool ImplicitCode) {
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// If no scope is available, this is an unknown location.
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if (!Scope)
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return DebugLoc();
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return DILocation::get(Scope->getContext(), Line, Col,
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const_cast<MDNode *>(Scope),
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const_cast<MDNode *>(InlinedAt), ImplicitCode);
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}
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DebugLoc DebugLoc::appendInlinedAt(DebugLoc DL, DILocation *InlinedAt,
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LLVMContext &Ctx,
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DenseMap<const MDNode *, MDNode *> &Cache,
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bool ReplaceLast) {
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SmallVector<DILocation *, 3> InlinedAtLocations;
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DILocation *Last = InlinedAt;
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DILocation *CurInlinedAt = DL;
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// Gather all the inlined-at nodes.
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while (DILocation *IA = CurInlinedAt->getInlinedAt()) {
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// Skip any we've already built nodes for.
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if (auto *Found = Cache[IA]) {
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Last = cast<DILocation>(Found);
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break;
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}
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if (ReplaceLast && !IA->getInlinedAt())
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break;
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InlinedAtLocations.push_back(IA);
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CurInlinedAt = IA;
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}
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// Starting from the top, rebuild the nodes to point to the new inlined-at
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// location (then rebuilding the rest of the chain behind it) and update the
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// map of already-constructed inlined-at nodes.
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for (const DILocation *MD : reverse(InlinedAtLocations))
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Cache[MD] = Last = DILocation::getDistinct(
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Ctx, MD->getLine(), MD->getColumn(), MD->getScope(), Last);
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return Last;
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}
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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LLVM_DUMP_METHOD void DebugLoc::dump() const { print(dbgs()); }
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#endif
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void DebugLoc::print(raw_ostream &OS) const {
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if (!Loc)
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return;
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// Print source line info.
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auto *Scope = cast<DIScope>(getScope());
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OS << Scope->getFilename();
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OS << ':' << getLine();
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if (getCol() != 0)
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OS << ':' << getCol();
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if (DebugLoc InlinedAtDL = getInlinedAt()) {
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OS << " @[ ";
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InlinedAtDL.print(OS);
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OS << " ]";
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}
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}
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