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llvm-mirror/lib/CodeGen/AsmPrinter/AddressPool.cpp
David Blaikie e01dc73ad2 Fix a bunch more layering of CodeGen headers that are in Target
All these headers already depend on CodeGen headers so moving them into
CodeGen fixes the layering (since CodeGen depends on Target, not the
other way around).

llvm-svn: 318490
2017-11-17 01:07:10 +00:00

47 lines
1.4 KiB
C++

//===- llvm/CodeGen/AddressPool.cpp - Dwarf Debug Framework ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "AddressPool.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/TargetLoweringObjectFile.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/MC/MCStreamer.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;
}
// Emit addresses into the section given.
void AddressPool::emit(AsmPrinter &Asm, MCSection *AddrSection) {
if (Pool.empty())
return;
// Start the dwarf addr section.
Asm.OutStreamer->SwitchSection(AddrSection);
// 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());
}