llvm-6502/lib/Target/TargetSubtargetInfo.cpp
Duncan P. N. Exon Smith 16859aa242 MC: Remove MCSubtargetInfo() default constructor
Force all creators of `MCSubtargetInfo` to immediately initialize it,
merging the default constructor and the initializer into an initializing
constructor.  Besides cleaning up the code a little, this makes it clear
that the initializer is never called again later.

Out-of-tree backends need a trivial change: instead of calling:

    auto *X = new MCSubtargetInfo();
    InitXYZMCSubtargetInfo(X, ...);
    return X;

they should call:

    return createXYZMCSubtargetInfoImpl(...);

There's no real functionality change here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241957 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-10 22:43:42 +00:00

57 lines
1.7 KiB
C++

//===-- TargetSubtargetInfo.cpp - General Target Information ---------------==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file describes the general parts of a Subtarget.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/CommandLine.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
//---------------------------------------------------------------------------
// TargetSubtargetInfo Class
//
TargetSubtargetInfo::TargetSubtargetInfo(
const Triple &TT, StringRef CPU, StringRef FS,
ArrayRef<SubtargetFeatureKV> PF, ArrayRef<SubtargetFeatureKV> PD,
const SubtargetInfoKV *ProcSched, const MCWriteProcResEntry *WPR,
const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA,
const InstrStage *IS, const unsigned *OC, const unsigned *FP)
: MCSubtargetInfo(TT, CPU, FS, PF, PD, ProcSched, WPR, WL, RA, IS, OC, FP) {
}
TargetSubtargetInfo::~TargetSubtargetInfo() {}
bool TargetSubtargetInfo::enableAtomicExpand() const {
return true;
}
bool TargetSubtargetInfo::enableMachineScheduler() const {
return false;
}
bool TargetSubtargetInfo::enableJoinGlobalCopies() const {
return enableMachineScheduler();
}
bool TargetSubtargetInfo::enableRALocalReassignment(
CodeGenOpt::Level OptLevel) const {
return true;
}
bool TargetSubtargetInfo::enablePostRAScheduler() const {
return getSchedModel().PostRAScheduler;
}
bool TargetSubtargetInfo::useAA() const {
return false;
}