summaryrefslogtreecommitdiff
path: root/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp')
-rw-r--r--contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp77
1 files changed, 0 insertions, 77 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp
deleted file mode 100644
index f11c7de5ed8a..000000000000
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/AddressPool.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-//===- llvm/CodeGen/AddressPool.cpp - Dwarf Debug Framework ---------------===//
-//
-// 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 "AddressPool.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-#include <utility>
-
-using namespace llvm;
-
-unsigned AddressPool::getIndex(const MCSymbol *Sym, bool TLS) {
- HasBeenUsed = true;
- auto IterBool =
- Pool.insert(std::make_pair(Sym, AddressPoolEntry(Pool.size(), TLS)));
- return IterBool.first->second.Number;
-}
-
-MCSymbol *AddressPool::emitHeader(AsmPrinter &Asm, MCSection *Section) {
- static const uint8_t AddrSize = Asm.getDataLayout().getPointerSize();
- StringRef Prefix = "debug_addr_";
- MCSymbol *BeginLabel = Asm.createTempSymbol(Prefix + "start");
- MCSymbol *EndLabel = Asm.createTempSymbol(Prefix + "end");
-
- Asm.OutStreamer->AddComment("Length of contribution");
- Asm.EmitLabelDifference(EndLabel, BeginLabel,
- 4); // TODO: Support DWARF64 format.
- Asm.OutStreamer->EmitLabel(BeginLabel);
- Asm.OutStreamer->AddComment("DWARF version number");
- Asm.emitInt16(Asm.getDwarfVersion());
- Asm.OutStreamer->AddComment("Address size");
- Asm.emitInt8(AddrSize);
- Asm.OutStreamer->AddComment("Segment selector size");
- Asm.emitInt8(0); // TODO: Support non-zero segment_selector_size.
-
- return EndLabel;
-}
-
-// Emit addresses into the section given.
-void AddressPool::emit(AsmPrinter &Asm, MCSection *AddrSection) {
- if (isEmpty())
- return;
-
- // Start the dwarf addr section.
- Asm.OutStreamer->SwitchSection(AddrSection);
-
- MCSymbol *EndLabel = nullptr;
-
- if (Asm.getDwarfVersion() >= 5)
- EndLabel = emitHeader(Asm, AddrSection);
-
- // Define the symbol that marks the start of the contribution.
- // It is referenced via DW_AT_addr_base.
- Asm.OutStreamer->EmitLabel(AddressTableBaseSym);
-
- // Order the address pool entries by ID
- SmallVector<const MCExpr *, 64> Entries(Pool.size());
-
- for (const auto &I : Pool)
- Entries[I.second.Number] =
- I.second.TLS
- ? Asm.getObjFileLowering().getDebugThreadLocalSymbol(I.first)
- : MCSymbolRefExpr::create(I.first, Asm.OutContext);
-
- for (const MCExpr *Entry : Entries)
- Asm.OutStreamer->EmitValue(Entry, Asm.getDataLayout().getPointerSize());
-
- if (EndLabel)
- Asm.OutStreamer->EmitLabel(EndLabel);
-}