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-rw-r--r--gnu/llvm/lib/CodeGen/AsmPrinter/DebugLocStream.h193
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diff --git a/gnu/llvm/lib/CodeGen/AsmPrinter/DebugLocStream.h b/gnu/llvm/lib/CodeGen/AsmPrinter/DebugLocStream.h
deleted file mode 100644
index 8dcf5cbc188..00000000000
--- a/gnu/llvm/lib/CodeGen/AsmPrinter/DebugLocStream.h
+++ /dev/null
@@ -1,193 +0,0 @@
-//===--- lib/CodeGen/DebugLocStream.h - DWARF debug_loc stream --*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DEBUGLOCSTREAM_H
-#define LLVM_LIB_CODEGEN_ASMPRINTER_DEBUGLOCSTREAM_H
-
-#include "ByteStreamer.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/SmallVector.h"
-
-namespace llvm {
-
-class AsmPrinter;
-class DbgVariable;
-class DwarfCompileUnit;
-class MachineInstr;
-class MCSymbol;
-
-/// Byte stream of .debug_loc entries.
-///
-/// Stores a unified stream of .debug_loc entries. There's \a List for each
-/// variable/inlined-at pair, and an \a Entry for each \a DebugLocEntry.
-///
-/// FIXME: Do we need all these temp symbols?
-/// FIXME: Why not output directly to the output stream?
-class DebugLocStream {
-public:
- struct List {
- DwarfCompileUnit *CU;
- MCSymbol *Label = nullptr;
- size_t EntryOffset;
- List(DwarfCompileUnit *CU, size_t EntryOffset)
- : CU(CU), EntryOffset(EntryOffset) {}
- };
- struct Entry {
- const MCSymbol *BeginSym;
- const MCSymbol *EndSym;
- size_t ByteOffset;
- size_t CommentOffset;
- Entry(const MCSymbol *BeginSym, const MCSymbol *EndSym, size_t ByteOffset,
- size_t CommentOffset)
- : BeginSym(BeginSym), EndSym(EndSym), ByteOffset(ByteOffset),
- CommentOffset(CommentOffset) {}
- };
-
-private:
- SmallVector<List, 4> Lists;
- SmallVector<Entry, 32> Entries;
- SmallString<256> DWARFBytes;
- SmallVector<std::string, 32> Comments;
-
- /// Only verbose textual output needs comments. This will be set to
- /// true for that case, and false otherwise.
- bool GenerateComments;
-
-public:
- DebugLocStream(bool GenerateComments) : GenerateComments(GenerateComments) { }
- size_t getNumLists() const { return Lists.size(); }
- const List &getList(size_t LI) const { return Lists[LI]; }
- ArrayRef<List> getLists() const { return Lists; }
-
- class ListBuilder;
- class EntryBuilder;
-
-private:
- /// Start a new .debug_loc entry list.
- ///
- /// Start a new .debug_loc entry list. Return the new list's index so it can
- /// be retrieved later via \a getList().
- ///
- /// Until the next call, \a startEntry() will add entries to this list.
- size_t startList(DwarfCompileUnit *CU) {
- size_t LI = Lists.size();
- Lists.emplace_back(CU, Entries.size());
- return LI;
- }
-
- /// Finalize a .debug_loc entry list.
- ///
- /// If there are no entries in this list, delete it outright. Otherwise,
- /// create a label with \a Asm.
- ///
- /// \return false iff the list is deleted.
- bool finalizeList(AsmPrinter &Asm);
-
- /// Start a new .debug_loc entry.
- ///
- /// Until the next call, bytes added to the stream will be added to this
- /// entry.
- void startEntry(const MCSymbol *BeginSym, const MCSymbol *EndSym) {
- Entries.emplace_back(BeginSym, EndSym, DWARFBytes.size(), Comments.size());
- }
-
- /// Finalize a .debug_loc entry, deleting if it's empty.
- void finalizeEntry();
-
-public:
- BufferByteStreamer getStreamer() {
- return BufferByteStreamer(DWARFBytes, Comments, GenerateComments);
- }
-
- ArrayRef<Entry> getEntries(const List &L) const {
- size_t LI = getIndex(L);
- return makeArrayRef(Entries)
- .slice(Lists[LI].EntryOffset, getNumEntries(LI));
- }
-
- ArrayRef<char> getBytes(const Entry &E) const {
- size_t EI = getIndex(E);
- return makeArrayRef(DWARFBytes.begin(), DWARFBytes.end())
- .slice(Entries[EI].ByteOffset, getNumBytes(EI));
- }
- ArrayRef<std::string> getComments(const Entry &E) const {
- size_t EI = getIndex(E);
- return makeArrayRef(Comments)
- .slice(Entries[EI].CommentOffset, getNumComments(EI));
- }
-
-private:
- size_t getIndex(const List &L) const {
- assert(&Lists.front() <= &L && &L <= &Lists.back() &&
- "Expected valid list");
- return &L - &Lists.front();
- }
- size_t getIndex(const Entry &E) const {
- assert(&Entries.front() <= &E && &E <= &Entries.back() &&
- "Expected valid entry");
- return &E - &Entries.front();
- }
- size_t getNumEntries(size_t LI) const {
- if (LI + 1 == Lists.size())
- return Entries.size() - Lists[LI].EntryOffset;
- return Lists[LI + 1].EntryOffset - Lists[LI].EntryOffset;
- }
- size_t getNumBytes(size_t EI) const {
- if (EI + 1 == Entries.size())
- return DWARFBytes.size() - Entries[EI].ByteOffset;
- return Entries[EI + 1].ByteOffset - Entries[EI].ByteOffset;
- }
- size_t getNumComments(size_t EI) const {
- if (EI + 1 == Entries.size())
- return Comments.size() - Entries[EI].CommentOffset;
- return Entries[EI + 1].CommentOffset - Entries[EI].CommentOffset;
- }
-};
-
-/// Builder for DebugLocStream lists.
-class DebugLocStream::ListBuilder {
- DebugLocStream &Locs;
- AsmPrinter &Asm;
- DbgVariable &V;
- const MachineInstr &MI;
- size_t ListIndex;
-
-public:
- ListBuilder(DebugLocStream &Locs, DwarfCompileUnit &CU, AsmPrinter &Asm,
- DbgVariable &V, const MachineInstr &MI)
- : Locs(Locs), Asm(Asm), V(V), MI(MI), ListIndex(Locs.startList(&CU)) {}
-
- /// Finalize the list.
- ///
- /// If the list is empty, delete it. Otherwise, finalize it by creating a
- /// temp symbol in \a Asm and setting up the \a DbgVariable.
- ~ListBuilder();
-
- DebugLocStream &getLocs() { return Locs; }
-};
-
-/// Builder for DebugLocStream entries.
-class DebugLocStream::EntryBuilder {
- DebugLocStream &Locs;
-
-public:
- EntryBuilder(ListBuilder &List, const MCSymbol *Begin, const MCSymbol *End)
- : Locs(List.getLocs()) {
- Locs.startEntry(Begin, End);
- }
-
- /// Finalize the entry, deleting it if it's empty.
- ~EntryBuilder() { Locs.finalizeEntry(); }
-
- BufferByteStreamer getStreamer() { return Locs.getStreamer(); }
-};
-
-} // namespace llvm
-
-#endif