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//===- DebugLocStream.cpp - DWARF debug_loc stream --------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "DebugLocStream.h"
#include "DwarfDebug.h"
#include "llvm/CodeGen/AsmPrinter.h"
using namespace llvm;
bool DebugLocStream::finalizeList(AsmPrinter &Asm) {
if (Lists.back().EntryOffset == Entries.size()) {
// Empty list. Delete it.
Lists.pop_back();
return false;
}
// Real list. Generate a label for it.
Lists.back().Label = Asm.createTempSymbol("debug_loc");
return true;
}
void DebugLocStream::finalizeEntry() {
if (Entries.back().ByteOffset != DWARFBytes.size())
return;
// The last entry was empty. Delete it.
Comments.erase(Comments.begin() + Entries.back().CommentOffset,
Comments.end());
Entries.pop_back();
assert(Lists.back().EntryOffset <= Entries.size() &&
"Popped off more entries than are in the list");
}
DebugLocStream::ListBuilder::~ListBuilder() {
if (!Locs.finalizeList(Asm))
return;
V.initializeDbgValue(&MI);
V.setDebugLocListIndex(ListIndex);
if (TagOffset)
V.setDebugLocListTagOffset(*TagOffset);
}
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