LLVM  14.0.0git
DebugLocStream.cpp
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1 //===- DebugLocStream.cpp - DWARF debug_loc stream --------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "DebugLocStream.h"
10 #include "DwarfDebug.h"
12 
13 using namespace llvm;
14 
15 bool DebugLocStream::finalizeList(AsmPrinter &Asm) {
16  if (Lists.back().EntryOffset == Entries.size()) {
17  // Empty list. Delete it.
18  Lists.pop_back();
19  return false;
20  }
21 
22  // Real list. Generate a label for it.
23  Lists.back().Label = Asm.createTempSymbol("debug_loc");
24  return true;
25 }
26 
27 void DebugLocStream::finalizeEntry() {
28  if (Entries.back().ByteOffset != DWARFBytes.size())
29  return;
30 
31  // The last entry was empty. Delete it.
32  Comments.erase(Comments.begin() + Entries.back().CommentOffset,
33  Comments.end());
34  Entries.pop_back();
35 
36  assert(Lists.back().EntryOffset <= Entries.size() &&
37  "Popped off more entries than are in the list");
38 }
39 
41  if (!Locs.finalizeList(Asm))
42  return;
43  V.initializeDbgValue(&MI);
44  V.setDebugLocListIndex(ListIndex);
45  if (TagOffset)
46  V.setDebugLocListTagOffset(*TagOffset);
47 }
AsmPrinter.h
llvm
---------------------— PointerInfo ------------------------------------—
Definition: AllocatorList.h:23
DebugLocStream.h
llvm::DbgVariable::initializeDbgValue
void initializeDbgValue(DbgValueLoc Value)
Definition: DwarfDebug.h:152
llvm::DebugLocStream::ListBuilder::~ListBuilder
~ListBuilder()
Finalize the list.
Definition: DebugLocStream.cpp:40
DwarfDebug.h
llvm::DbgVariable::setDebugLocListIndex
void setDebugLocListIndex(unsigned O)
Definition: DwarfDebug.h:176
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
llvm::DbgVariable::setDebugLocListTagOffset
void setDebugLocListTagOffset(uint8_t O)
Definition: DwarfDebug.h:178
llvm::AsmPrinter
This class is intended to be used as a driving class for all asm writers.
Definition: AsmPrinter.h:82
llvm::HexStyle::Asm
@ Asm
0ffh
Definition: MCInstPrinter.h:34