llvm-mirror/lib/MC/MCAsmBackend.cpp
Rafael Espindola d9e77d0e39 Simplify a really complicated check for Arch == X86_64.
The function hasReliableSymbolDifference had exactly one use in the MachO
writer. It is also only true for X86_64. In fact, the comments refers to
"Darwin x86_64" and everything else, so this makes the code match the
comment.

If this is to be abstracted again, it should be a property of
TargetObjectWriter, like useAggressiveSymbolFolding.

llvm-svn: 203605
2014-03-11 21:22:57 +00:00

43 lines
1.4 KiB
C++

//===-- MCAsmBackend.cpp - Target MC Assembly Backend ----------------------==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/MC/MCFixupKindInfo.h"
using namespace llvm;
MCAsmBackend::MCAsmBackend() : HasDataInCodeSupport(false) {}
MCAsmBackend::~MCAsmBackend() {}
const MCFixupKindInfo &
MCAsmBackend::getFixupKindInfo(MCFixupKind Kind) const {
static const MCFixupKindInfo Builtins[] = {
{ "FK_Data_1", 0, 8, 0 },
{ "FK_Data_2", 0, 16, 0 },
{ "FK_Data_4", 0, 32, 0 },
{ "FK_Data_8", 0, 64, 0 },
{ "FK_PCRel_1", 0, 8, MCFixupKindInfo::FKF_IsPCRel },
{ "FK_PCRel_2", 0, 16, MCFixupKindInfo::FKF_IsPCRel },
{ "FK_PCRel_4", 0, 32, MCFixupKindInfo::FKF_IsPCRel },
{ "FK_PCRel_8", 0, 64, MCFixupKindInfo::FKF_IsPCRel },
{ "FK_GPRel_1", 0, 8, 0 },
{ "FK_GPRel_2", 0, 16, 0 },
{ "FK_GPRel_4", 0, 32, 0 },
{ "FK_GPRel_8", 0, 64, 0 },
{ "FK_SecRel_1", 0, 8, 0 },
{ "FK_SecRel_2", 0, 16, 0 },
{ "FK_SecRel_4", 0, 32, 0 },
{ "FK_SecRel_8", 0, 64, 0 }
};
assert((size_t)Kind <= array_lengthof(Builtins) && "Unknown fixup kind");
return Builtins[Kind];
}