index 8653a7c73b67526a5f187fb6c3de7573a39bed60..0127c488362d9397c4499da8f15dd83973ce29a5 100644 (file)
#define DEBUG_TYPE "asm-printer"
#include "ARMAsmPrinter.h"
#include "ARM.h"
-#include "ARMBuildAttrs.h"
#include "ARMConstantPoolValue.h"
#include "ARMFPUName.h"
#include "ARMMachineFunctionInfo.h"
#include "MCTargetDesc/ARMMCExpr.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallString.h"
-#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/DebugInfo.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Mangler.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/ARMBuildAttributes.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/Mangler.h"
#include "llvm/Target/TargetMachine.h"
#include <cctype>
using namespace llvm;
assert(GV && "C++ constructor pointer was not a GlobalValue!");
const MCExpr *E = MCSymbolRefExpr::Create(getSymbol(GV),
- (Subtarget->isTargetDarwin()
- ? MCSymbolRefExpr::VK_None
- : MCSymbolRefExpr::VK_ARM_TARGET1),
+ (Subtarget->isTargetELF()
+ ? MCSymbolRefExpr::VK_ARM_TARGET1
+ : MCSymbolRefExpr::VK_None),
OutContext);
OutStreamer.EmitValue(E, Size);
O << "(PLT)";
break;
}
- case MachineOperand::MO_ExternalSymbol: {
- O << *GetExternalSymbolSymbol(MO.getSymbolName());
- if (TF == ARMII::MO_PLT)
- O << "(PLT)";
- break;
- }
case MachineOperand::MO_ConstantPoolIndex:
O << *GetCPISymbol(MO.getIndex());
break;
- case MachineOperand::MO_JumpTableIndex:
- O << *GetJTISymbol(MO.getIndex());
- break;
}
}
MCSymbol *ARMAsmPrinter::
GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const {
+ const DataLayout *DL = TM.getDataLayout();
SmallString<60> Name;
- raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI"
+ raw_svector_ostream(Name) << DL->getPrivateGlobalPrefix() << "JTI"
<< getFunctionNumber() << '_' << uid << '_' << uid2;
return OutContext.GetOrCreateSymbol(Name.str());
}
MCSymbol *ARMAsmPrinter::GetARMSJLJEHLabel() const {
+ const DataLayout *DL = TM.getDataLayout();
SmallString<60> Name;
- raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "SJLJEH"
+ raw_svector_ostream(Name) << DL->getPrivateGlobalPrefix() << "SJLJEH"
<< getFunctionNumber();
return OutContext.GetOrCreateSymbol(Name.str());
}
}
void ARMAsmPrinter::EmitStartOfAsmFile(Module &M) {
- if (Subtarget->isTargetDarwin()) {
+ if (Subtarget->isTargetMachO()) {
Reloc::Model RelocM = TM.getRelocationModel();
if (RelocM == Reloc::PIC_ || RelocM == Reloc::DynamicNoPIC) {
// Declare all the text sections up front (before the DWARF sections
void ARMAsmPrinter::EmitEndOfAsmFile(Module &M) {
- if (Subtarget->isTargetDarwin()) {
+ if (Subtarget->isTargetMachO()) {
// All darwin targets use mach-o.
const TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering());
}
void ARMAsmPrinter::emitAttributes() {
- MCTargetStreamer &TS = OutStreamer.getTargetStreamer();
+ MCTargetStreamer &TS = *OutStreamer.getTargetStreamer();
ARMTargetStreamer &ATS = static_cast<ARMTargetStreamer &>(TS);
ATS.switchVendor("aeabi");
std::string CPUString = Subtarget->getCPUString();
- if (CPUString != "generic")
+ // FIXME: remove krait check when GNU tools support krait cpu
+ if (CPUString != "generic" && CPUString != "krait")
ATS.emitTextAttribute(ARMBuildAttrs::CPU_name, CPUString);
ATS.emitAttribute(ARMBuildAttrs::CPU_arch,
getArchForCPU(CPUString, Subtarget));
- if (Subtarget->isAClass()) {
- ATS.emitAttribute(ARMBuildAttrs::CPU_arch_profile,
- ARMBuildAttrs::ApplicationProfile);
- } else if (Subtarget->isRClass()) {
- ATS.emitAttribute(ARMBuildAttrs::CPU_arch_profile,
- ARMBuildAttrs::RealTimeProfile);
- } else if (Subtarget->isMClass()){
- ATS.emitAttribute(ARMBuildAttrs::CPU_arch_profile,
- ARMBuildAttrs::MicroControllerProfile);
+ // Tag_CPU_arch_profile must have the default value of 0 when "Architecture
+ // profile is not applicable (e.g. pre v7, or cross-profile code)".
+ if (Subtarget->hasV7Ops()) {
+ if (Subtarget->isAClass()) {
+ ATS.emitAttribute(ARMBuildAttrs::CPU_arch_profile,
+ ARMBuildAttrs::ApplicationProfile);
+ } else if (Subtarget->isRClass()) {
+ ATS.emitAttribute(ARMBuildAttrs::CPU_arch_profile,
+ ARMBuildAttrs::RealTimeProfile);
+ } else if (Subtarget->isMClass()) {
+ ATS.emitAttribute(ARMBuildAttrs::CPU_arch_profile,
+ ARMBuildAttrs::MicroControllerProfile);
+ }
}
ATS.emitAttribute(ARMBuildAttrs::ARM_ISA_use, Subtarget->hasARMOps() ?
ATS.emitAttribute(ARMBuildAttrs::ABI_FP_number_model,
ARMBuildAttrs::AllowIEE754);
- // FIXME: add more flags to ARMBuildAttrs.h
+ // FIXME: add more flags to ARMBuildAttributes.h
// 8-bytes alignment stuff.
- ATS.emitAttribute(ARMBuildAttrs::ABI_align8_needed, 1);
- ATS.emitAttribute(ARMBuildAttrs::ABI_align8_preserved, 1);
+ ATS.emitAttribute(ARMBuildAttrs::ABI_align_needed, 1);
+ ATS.emitAttribute(ARMBuildAttrs::ABI_align_preserved, 1);
+
+ // ABI_HardFP_use attribute to indicate single precision FP.
+ if (Subtarget->isFPOnlySP())
+ ATS.emitAttribute(ARMBuildAttrs::ABI_HardFP_use,
+ ARMBuildAttrs::HardFPSinglePrecision);
// Hard float. Use both S and D registers and conform to AAPCS-VFP.
- if (Subtarget->isAAPCS_ABI() && TM.Options.FloatABIType == FloatABI::Hard) {
- ATS.emitAttribute(ARMBuildAttrs::ABI_HardFP_use, 3);
- ATS.emitAttribute(ARMBuildAttrs::ABI_VFP_args, 1);
- }
+ if (Subtarget->isAAPCS_ABI() && TM.Options.FloatABIType == FloatABI::Hard)
+ ATS.emitAttribute(ARMBuildAttrs::ABI_VFP_args, ARMBuildAttrs::HardFPAAPCS);
+
// FIXME: Should we signal R9 usage?
- if (Subtarget->hasDivide()) {
- // Check if hardware divide is only available in thumb2 or ARM as well.
- ATS.emitAttribute(ARMBuildAttrs::DIV_use,
- Subtarget->hasDivideInARMMode() ? ARMBuildAttrs::AllowDIVExt :
- ARMBuildAttrs::AllowDIVIfExists);
- }
+ if (Subtarget->hasFP16())
+ ATS.emitAttribute(ARMBuildAttrs::FP_HP_extension, ARMBuildAttrs::AllowHPFP);
+
+ if (Subtarget->hasMPExtension())
+ ATS.emitAttribute(ARMBuildAttrs::MPextension_use, ARMBuildAttrs::AllowMP);
+
+ // Hardware divide in ARM mode is part of base arch, starting from ARMv8.
+ // If only Thumb hwdiv is present, it must also be in base arch (ARMv7-R/M).
+ // It is not possible to produce DisallowDIV: if hwdiv is present in the base
+ // arch, supplying -hwdiv downgrades the effective arch, via ClearImpliedBits.
+ // AllowDIVExt is only emitted if hwdiv isn't available in the base arch;
+ // otherwise, the default value (AllowDIVIfExists) applies.
+ if (Subtarget->hasDivideInARMMode() && !Subtarget->hasV8Ops())
+ ATS.emitAttribute(ARMBuildAttrs::DIV_use, ARMBuildAttrs::AllowDIVExt);
+
+ if (Subtarget->hasTrustZone() && Subtarget->hasVirtualization())
+ ATS.emitAttribute(ARMBuildAttrs::Virtualization_use,
+ ARMBuildAttrs::AllowTZVirtualization);
+ else if (Subtarget->hasTrustZone())
+ ATS.emitAttribute(ARMBuildAttrs::Virtualization_use,
+ ARMBuildAttrs::AllowTZ);
+ else if (Subtarget->hasVirtualization())
+ ATS.emitAttribute(ARMBuildAttrs::Virtualization_use,
+ ARMBuildAttrs::AllowVirtualization);
ATS.finishAttributeSection();
}
getModifierVariantKind(ARMCP::ARMCPModifier Modifier) {
switch (Modifier) {
case ARMCP::no_modifier: return MCSymbolRefExpr::VK_None;
- case ARMCP::TLSGD: return MCSymbolRefExpr::VK_ARM_TLSGD;
- case ARMCP::TPOFF: return MCSymbolRefExpr::VK_ARM_TPOFF;
- case ARMCP::GOTTPOFF: return MCSymbolRefExpr::VK_ARM_GOTTPOFF;
- case ARMCP::GOT: return MCSymbolRefExpr::VK_ARM_GOT;
- case ARMCP::GOTOFF: return MCSymbolRefExpr::VK_ARM_GOTOFF;
+ case ARMCP::TLSGD: return MCSymbolRefExpr::VK_TLSGD;
+ case ARMCP::TPOFF: return MCSymbolRefExpr::VK_TPOFF;
+ case ARMCP::GOTTPOFF: return MCSymbolRefExpr::VK_GOTTPOFF;
+ case ARMCP::GOT: return MCSymbolRefExpr::VK_GOT;
+ case ARMCP::GOTOFF: return MCSymbolRefExpr::VK_GOTOFF;
}
llvm_unreachable("Invalid ARMCPModifier!");
}
-MCSymbol *ARMAsmPrinter::GetARMGVSymbol(const GlobalValue *GV) {
- bool isIndirect = Subtarget->isTargetDarwin() &&
+MCSymbol *ARMAsmPrinter::GetARMGVSymbol(const GlobalValue *GV,
+ unsigned char TargetFlags) {
+ bool isIndirect = Subtarget->isTargetMachO() &&
+ (TargetFlags & ARMII::MO_NONLAZY) &&
Subtarget->GVIsIndirectSymbol(GV, TM.getRelocationModel());
if (!isIndirect)
return getSymbol(GV);
// FIXME: Remove this when Darwin transition to @GOT like syntax.
- MCSymbol *MCSym = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
+ MCSymbol *MCSym = getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
MachineModuleInfoMachO &MMIMachO =
MMI->getObjFileInfo<MachineModuleInfoMachO>();
MachineModuleInfoImpl::StubValueTy &StubSym =
void ARMAsmPrinter::
EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) {
+ const DataLayout *DL = TM.getDataLayout();
int Size = TM.getDataLayout()->getTypeAllocSize(MCPV->getType());
ARMConstantPoolValue *ACPV = static_cast<ARMConstantPoolValue*>(MCPV);
if (ACPV->isLSDA()) {
SmallString<128> Str;
raw_svector_ostream OS(Str);
- OS << MAI->getPrivateGlobalPrefix() << "_LSDA_" << getFunctionNumber();
+ OS << DL->getPrivateGlobalPrefix() << "_LSDA_" << getFunctionNumber();
MCSym = OutContext.GetOrCreateSymbol(OS.str());
} else if (ACPV->isBlockAddress()) {
const BlockAddress *BA =
MCSym = GetBlockAddressSymbol(BA);
} else if (ACPV->isGlobalValue()) {
const GlobalValue *GV = cast<ARMConstantPoolConstant>(ACPV)->getGV();
- MCSym = GetARMGVSymbol(GV);
+
+ // On Darwin, const-pool entries may get the "FOO$non_lazy_ptr" mangling, so
+ // flag the global as MO_NONLAZY.
+ unsigned char TF = Subtarget->isTargetMachO() ? ARMII::MO_NONLAZY : 0;
+ MCSym = GetARMGVSymbol(GV, TF);
} else if (ACPV->isMachineBasicBlock()) {
const MachineBasicBlock *MBB = cast<ARMConstantPoolMBB>(ACPV)->getMBB();
MCSym = MBB->getSymbol();
OutContext);
if (ACPV->getPCAdjustment()) {
- MCSymbol *PCLabel = getPICLabel(MAI->getPrivateGlobalPrefix(),
+ MCSymbol *PCLabel = getPICLabel(DL->getPrivateGlobalPrefix(),
getFunctionNumber(),
ACPV->getLabelId(),
OutContext);
assert(MI->getFlag(MachineInstr::FrameSetup) &&
"Only instruction which are involved into frame setup code are allowed");
- MCTargetStreamer &TS = OutStreamer.getTargetStreamer();
+ MCTargetStreamer &TS = *OutStreamer.getTargetStreamer();
ARMTargetStreamer &ATS = static_cast<ARMTargetStreamer &>(TS);
const MachineFunction &MF = *MI->getParent()->getParent();
const TargetRegisterInfo *RegInfo = MF.getTarget().getRegisterInfo();
#include "ARMGenMCPseudoLowering.inc"
void ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) {
+ const DataLayout *DL = TM.getDataLayout();
+
// If we just ended a constant pool, mark it as such.
if (InConstantPool && MI->getOpcode() != ARM::CONSTPOOL_ENTRY) {
OutStreamer.EmitDataRegion(MCDR_DataRegionEnd);
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
unsigned TF = MI->getOperand(1).getTargetFlags();
- bool isPIC = TF == ARMII::MO_LO16_NONLAZY_PIC;
const GlobalValue *GV = MI->getOperand(1).getGlobal();
- MCSymbol *GVSym = GetARMGVSymbol(GV);
+ MCSymbol *GVSym = GetARMGVSymbol(GV, TF);
const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext);
- if (isPIC) {
- MCSymbol *LabelSym = getPICLabel(MAI->getPrivateGlobalPrefix(),
- getFunctionNumber(),
- MI->getOperand(2).getImm(), OutContext);
- const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext);
- unsigned PCAdj = (Opc == ARM::MOVi16_ga_pcrel) ? 8 : 4;
- const MCExpr *PCRelExpr =
- ARMMCExpr::CreateLower16(MCBinaryExpr::CreateSub(GVSymExpr,
- MCBinaryExpr::CreateAdd(LabelSymExpr,
+
+ MCSymbol *LabelSym = getPICLabel(DL->getPrivateGlobalPrefix(),
+ getFunctionNumber(),
+ MI->getOperand(2).getImm(), OutContext);
+ const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext);
+ unsigned PCAdj = (Opc == ARM::MOVi16_ga_pcrel) ? 8 : 4;
+ const MCExpr *PCRelExpr =
+ ARMMCExpr::CreateLower16(MCBinaryExpr::CreateSub(GVSymExpr,
+ MCBinaryExpr::CreateAdd(LabelSymExpr,
MCConstantExpr::Create(PCAdj, OutContext),
- OutContext), OutContext), OutContext);
+ OutContext), OutContext), OutContext);
TmpInst.addOperand(MCOperand::CreateExpr(PCRelExpr));
- } else {
- const MCExpr *RefExpr= ARMMCExpr::CreateLower16(GVSymExpr, OutContext);
- TmpInst.addOperand(MCOperand::CreateExpr(RefExpr));
- }
// Add predicate operands.
TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL));
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg()));
unsigned TF = MI->getOperand(2).getTargetFlags();
- bool isPIC = TF == ARMII::MO_HI16_NONLAZY_PIC;
const GlobalValue *GV = MI->getOperand(2).getGlobal();
- MCSymbol *GVSym = GetARMGVSymbol(GV);
+ MCSymbol *GVSym = GetARMGVSymbol(GV, TF);
const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext);
- if (isPIC) {
- MCSymbol *LabelSym = getPICLabel(MAI->getPrivateGlobalPrefix(),
- getFunctionNumber(),
- MI->getOperand(3).getImm(), OutContext);
- const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext);
- unsigned PCAdj = (Opc == ARM::MOVTi16_ga_pcrel) ? 8 : 4;
- const MCExpr *PCRelExpr =
+
+ MCSymbol *LabelSym = getPICLabel(DL->getPrivateGlobalPrefix(),
+ getFunctionNumber(),
+ MI->getOperand(3).getImm(), OutContext);
+ const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext);
+ unsigned PCAdj = (Opc == ARM::MOVTi16_ga_pcrel) ? 8 : 4;
+ const MCExpr *PCRelExpr =
ARMMCExpr::CreateUpper16(MCBinaryExpr::CreateSub(GVSymExpr,
MCBinaryExpr::CreateAdd(LabelSymExpr,
MCConstantExpr::Create(PCAdj, OutContext),
OutContext), OutContext), OutContext);
TmpInst.addOperand(MCOperand::CreateExpr(PCRelExpr));
- } else {
- const MCExpr *RefExpr= ARMMCExpr::CreateUpper16(GVSymExpr, OutContext);
- TmpInst.addOperand(MCOperand::CreateExpr(RefExpr));
- }
// Add predicate operands.
TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL));
TmpInst.addOperand(MCOperand::CreateReg(0));
// This adds the address of LPC0 to r0.
// Emit the label.
- OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(),
+ OutStreamer.EmitLabel(getPICLabel(DL->getPrivateGlobalPrefix(),
getFunctionNumber(), MI->getOperand(2).getImm(),
OutContext));
// This adds the address of LPC0 to r0.
// Emit the label.
- OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(),
+ OutStreamer.EmitLabel(getPICLabel(DL->getPrivateGlobalPrefix(),
getFunctionNumber(), MI->getOperand(2).getImm(),
OutContext));
// a PC-relative address at the ldr instruction.
// Emit the label.
- OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(),
+ OutStreamer.EmitLabel(getPICLabel(DL->getPrivateGlobalPrefix(),
getFunctionNumber(), MI->getOperand(2).getImm(),
OutContext));
case ARM::TRAP: {
// Non-Darwin binutils don't yet support the "trap" mnemonic.
// FIXME: Remove this special case when they do.
- if (!Subtarget->isTargetDarwin()) {
+ if (!Subtarget->isTargetMachO()) {
//.long 0xe7ffdefe @ trap
uint32_t Val = 0xe7ffdefeUL;
OutStreamer.AddComment("trap");
case ARM::tTRAP: {
// Non-Darwin binutils don't yet support the "trap" mnemonic.
// FIXME: Remove this special case when they do.
- if (!Subtarget->isTargetDarwin()) {
+ if (!Subtarget->isTargetMachO()) {
//.short 57086 @ trap
uint16_t Val = 0xdefe;
OutStreamer.AddComment("trap");