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883abacb5b
When using large code model: Global objects larger than 'CodeModelLargeSize' bytes are placed in sections named with a trailing ".large" The folded global address of such objects are lowered into the const pool. During inspection it was noted that LowerConstantPool() was using a default offset of zero. A fix was made, but due to only offsets of zero being generated, testing only verifies the change is not detrimental. Correct the flags emitted for explicitly specified sections. We assume the size of the object queried by getSectionForConstant() is never greater than CodeModelLargeSize. To handle greater than CodeModelLargeSize, changes to AsmPrinter would be required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196087 91177308-0d34-0410-b5e6-96231b3b80d8
114 lines
3.8 KiB
C++
114 lines
3.8 KiB
C++
//===-- XCoreMCTargetDesc.cpp - XCore Target Descriptions -----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides XCore specific target descriptions.
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//
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//===----------------------------------------------------------------------===//
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#include "XCoreMCTargetDesc.h"
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#include "InstPrinter/XCoreInstPrinter.h"
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#include "XCoreMCAsmInfo.h"
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#include "llvm/MC/MCCodeGenInfo.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/TargetRegistry.h"
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#define GET_INSTRINFO_MC_DESC
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#include "XCoreGenInstrInfo.inc"
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#define GET_SUBTARGETINFO_MC_DESC
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#include "XCoreGenSubtargetInfo.inc"
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#define GET_REGINFO_MC_DESC
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#include "XCoreGenRegisterInfo.inc"
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using namespace llvm;
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static MCInstrInfo *createXCoreMCInstrInfo() {
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MCInstrInfo *X = new MCInstrInfo();
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InitXCoreMCInstrInfo(X);
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return X;
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}
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static MCRegisterInfo *createXCoreMCRegisterInfo(StringRef TT) {
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MCRegisterInfo *X = new MCRegisterInfo();
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InitXCoreMCRegisterInfo(X, XCore::LR);
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return X;
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}
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static MCSubtargetInfo *createXCoreMCSubtargetInfo(StringRef TT, StringRef CPU,
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StringRef FS) {
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MCSubtargetInfo *X = new MCSubtargetInfo();
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InitXCoreMCSubtargetInfo(X, TT, CPU, FS);
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return X;
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}
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static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
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StringRef TT) {
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MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
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// Initial state of the frame pointer is SP.
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MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(0, XCore::SP, 0);
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MAI->addInitialFrameState(Inst);
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return MAI;
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}
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static MCCodeGenInfo *createXCoreMCCodeGenInfo(StringRef TT, Reloc::Model RM,
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CodeModel::Model CM,
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CodeGenOpt::Level OL) {
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MCCodeGenInfo *X = new MCCodeGenInfo();
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if (RM == Reloc::Default) {
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RM = Reloc::Static;
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}
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if (CM == CodeModel::Default) {
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CM = CodeModel::Small;
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}
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if (CM != CodeModel::Small && CM != CodeModel::Large)
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report_fatal_error("Target only supports CodeModel Small or Large");
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X->InitMCCodeGenInfo(RM, CM, OL);
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return X;
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}
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static MCInstPrinter *createXCoreMCInstPrinter(const Target &T,
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unsigned SyntaxVariant,
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const MCAsmInfo &MAI,
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const MCInstrInfo &MII,
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const MCRegisterInfo &MRI,
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const MCSubtargetInfo &STI) {
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return new XCoreInstPrinter(MAI, MII, MRI);
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}
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// Force static initialization.
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extern "C" void LLVMInitializeXCoreTargetMC() {
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// Register the MC asm info.
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RegisterMCAsmInfoFn X(TheXCoreTarget, createXCoreMCAsmInfo);
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// Register the MC codegen info.
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TargetRegistry::RegisterMCCodeGenInfo(TheXCoreTarget,
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createXCoreMCCodeGenInfo);
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// Register the MC instruction info.
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TargetRegistry::RegisterMCInstrInfo(TheXCoreTarget, createXCoreMCInstrInfo);
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// Register the MC register info.
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TargetRegistry::RegisterMCRegInfo(TheXCoreTarget, createXCoreMCRegisterInfo);
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// Register the MC subtarget info.
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TargetRegistry::RegisterMCSubtargetInfo(TheXCoreTarget,
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createXCoreMCSubtargetInfo);
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// Register the MCInstPrinter
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TargetRegistry::RegisterMCInstPrinter(TheXCoreTarget,
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createXCoreMCInstPrinter);
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}
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