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comparison lib/CodeGen/AsmPrinter/AddressPool.cpp @ 77:54457678186b LLVM3.6

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
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children afa8332a0e37
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34:e874dbf0ad9d 77:54457678186b
1 //===-- llvm/CodeGen/AddressPool.cpp - Dwarf Debug Framework ---*- C++ -*--===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "AddressPool.h"
11 #include "llvm/CodeGen/AsmPrinter.h"
12 #include "llvm/MC/MCStreamer.h"
13 #include "llvm/Target/TargetLoweringObjectFile.h"
14
15 using namespace llvm;
16
17 class MCExpr;
18
19 unsigned AddressPool::getIndex(const MCSymbol *Sym, bool TLS) {
20 HasBeenUsed = true;
21 auto IterBool =
22 Pool.insert(std::make_pair(Sym, AddressPoolEntry(Pool.size(), TLS)));
23 return IterBool.first->second.Number;
24 }
25
26 // Emit addresses into the section given.
27 void AddressPool::emit(AsmPrinter &Asm, const MCSection *AddrSection) {
28 if (Pool.empty())
29 return;
30
31 // Start the dwarf addr section.
32 Asm.OutStreamer.SwitchSection(AddrSection);
33
34 // Order the address pool entries by ID
35 SmallVector<const MCExpr *, 64> Entries(Pool.size());
36
37 for (const auto &I : Pool)
38 Entries[I.second.Number] =
39 I.second.TLS
40 ? Asm.getObjFileLowering().getDebugThreadLocalSymbol(I.first)
41 : MCSymbolRefExpr::Create(I.first, Asm.OutContext);
42
43 for (const MCExpr *Entry : Entries)
44 Asm.OutStreamer.EmitValue(Entry, Asm.getDataLayout().getPointerSize());
45 }