llvm-6502/include/llvm/MC/MCSymbolELF.h
Rafael Espindola cddcabadf2 Bring back r239006 with a fix.
The fix is just that getOther had not been updated for packing the st_other
values in fewer bits and could return spurious values:

-  unsigned Other = (getFlags() & (0x3f << ELF_STO_Shift)) >> ELF_STO_Shift;
+  unsigned Other = (getFlags() & (0x7 << ELF_STO_Shift)) >> ELF_STO_Shift;

Original message:

Pack the MCSymbolELF bit fields into MCSymbol's Flags.

This reduces MCSymolfELF from 64 bytes to 56 bytes on x86_64.

While at it, also make getOther/setOther easier to use by accepting unshifted
STO_* values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239012 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-04 05:59:23 +00:00

58 lines
1.5 KiB
C++

//===- MCSymbolELF.h - -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCSYMBOLELF_H
#define LLVM_MC_MCSYMBOLELF_H
#include "llvm/MC/MCSymbol.h"
namespace llvm {
class MCSymbolELF : public MCSymbol {
/// An expression describing how to calculate the size of a symbol. If a
/// symbol has no size this field will be NULL.
const MCExpr *SymbolSize = nullptr;
public:
MCSymbolELF(const StringMapEntry<bool> *Name, bool isTemporary)
: MCSymbol(true, Name, isTemporary) {}
void setSize(const MCExpr *SS) { SymbolSize = SS; }
const MCExpr *getSize() const { return SymbolSize; }
void setVisibility(unsigned Visibility);
unsigned getVisibility() const;
void setOther(unsigned Other);
unsigned getOther() const;
void setType(unsigned Type) const;
unsigned getType() const;
void setBinding(unsigned Binding) const;
unsigned getBinding() const;
bool isBindingSet() const;
void setUsedInReloc() const;
bool isUsedInReloc() const;
void setIsWeakrefUsedInReloc() const;
bool isWeakrefUsedInReloc() const;
void setIsSignature() const;
bool isSignature() const;
static bool classof(const MCSymbol *S) { return S->isELF(); }
private:
void setIsBindingSet() const;
};
}
#endif