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Implement target independent TLS compatible with glibc's emutls.c.

Browse Source 
The 'common' section TLS is not implemented.
Current C/C++ TLS variables are not placed in common section.
DWARF debug info to get the address of TLS variables is not generated yet.

clang and driver changes in http://reviews.llvm.org/D10524

  Added -femulated-tls flag to select the emulated TLS model,
  which will be used for old targets like Android that do not
  support ELF TLS models.

Added TargetLowering::LowerToTLSEmulatedModel as a target-independent
function to convert a SDNode of TLS variable address to a function call
to __emutls_get_address.

Added into lib/Target/*/*ISelLowering.cpp to call LowerToTLSEmulatedModel
for TLSModel::Emulated. Although all targets supporting ELF TLS models are
enhanced, emulated TLS model has been tested only for Android ELF targets.
Modified AsmPrinter.cpp to print the emutls_v.* and emutls_t.* variables for
emulated TLS variables.
Modified DwarfCompileUnit.cpp to skip some DIE for emulated TLS variabls.

TODO: Add proper DIE for emulated TLS variables.
      Added new unit tests with emulated TLS.

Differential Revision: http://reviews.llvm.org/D10522


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243438 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chih-Hung Hsieh 2015-07-28 16:24:05 +00:00
parent 751664fd1b
commit dc73dc09f1
32 changed files with 1895 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
docs/LangRef.rst
View File

@ -494,6 +494,9 @@ model is not supported, or if a better choice of model can be made.
A model can also be specified in a alias, but then it only governs how
the alias is accessed. It will not have any effect in the aliasee.
For platforms without linker support of ELF TLS model, the -femulated-tls
flag can be used to generate GCC compatible emulated TLS code.
.. _namedtypes:
Structure Types

5
include/llvm/CodeGen/AsmPrinter.h
View File

@ -238,6 +238,11 @@ public:
///
void EmitJumpTableInfo();
/// Emit the control variable for an emulated TLS variable.
virtual void EmitEmulatedTLSControlVariable(const GlobalVariable *GV,
MCSymbol *EmittedSym,
bool AllZeroInitValue);
/// Emit the specified global variable to the .s file.
virtual void EmitGlobalVariable(const GlobalVariable *GV);

5
include/llvm/CodeGen/CommandFlags.h
View File

@ -219,6 +219,10 @@ FunctionSections("function-sections",
cl::desc("Emit functions into separate sections"),
cl::init(false));
cl::opt<bool> EmulatedTLS("emulated-tls",
cl::desc("Use emulated TLS model"),
cl::init(false));
cl::opt<bool> UniqueSectionNames("unique-section-names",
cl::desc("Give unique names to every section"),
cl::init(true));
@ -260,6 +264,7 @@ static inline TargetOptions InitTargetOptionsFromCodeGenFlags() {
Options.DataSections = DataSections;
Options.FunctionSections = FunctionSections;
Options.UniqueSectionNames = UniqueSectionNames;
Options.EmulatedTLS = EmulatedTLS;
Options.MCOptions = InitMCTargetOptionsFromFlags();
Options.JTType = JTableType;

1
include/llvm/MC/MCObjectFileInfo.h
View File

@ -216,6 +216,7 @@ public:
MCSection *getTextSection() const { return TextSection; }
MCSection *getDataSection() const { return DataSection; }
MCSection *getBSSSection() const { return BSSSection; }
MCSection *getReadOnlySection() const { return ReadOnlySection; }
MCSection *getLSDASection() const { return LSDASection; }
MCSection *getCompactUnwindSection() const { return CompactUnwindSection; }
MCSection *getDwarfAbbrevSection() const { return DwarfAbbrevSection; }

4
include/llvm/Target/TargetLowering.h
View File

@ -2821,6 +2821,10 @@ public:
virtual bool useLoadStackGuardNode() const {
return false;
}
/// Lower TLS global address SDNode for target independent emulated TLS model.
virtual SDValue LowerToTLSEmulatedModel(const GlobalAddressSDNode *GA,
SelectionDAG &DAG) const;
};
/// Given an LLVM IR type and return type attributes, compute the return value

7
include/llvm/Target/TargetOptions.h
View File

@ -72,7 +72,7 @@ namespace llvm {
UseInitArray(false), DisableIntegratedAS(false),
CompressDebugSections(false), FunctionSections(false),
DataSections(false), UniqueSectionNames(true), TrapUnreachable(false),
FloatABIType(FloatABI::Default),
EmulatedTLS(false), FloatABIType(FloatABI::Default),
AllowFPOpFusion(FPOpFusion::Standard), Reciprocals(TargetRecip()),
JTType(JumpTable::Single),
ThreadModel(ThreadModel::POSIX) {}
@ -172,6 +172,10 @@ namespace llvm {
/// Emit target-specific trap instruction for 'unreachable' IR instructions.
unsigned TrapUnreachable : 1;
/// EmulatedTLS - This flag enables emulated TLS model, using emutls
/// function in the runtime library..
unsigned EmulatedTLS : 1;
/// FloatABIType - This setting is set by -float-abi=xxx option is specfied
/// on the command line. This setting may either be Default, Soft, or Hard.
/// Default selects the target's default behavior. Soft selects the ABI for
@ -231,6 +235,7 @@ inline bool operator==(const TargetOptions &LHS,
ARE_EQUAL(PositionIndependentExecutable) &&
ARE_EQUAL(UseInitArray) &&
ARE_EQUAL(TrapUnreachable) &&
ARE_EQUAL(EmulatedTLS) &&
ARE_EQUAL(FloatABIType) &&
ARE_EQUAL(AllowFPOpFusion) &&
ARE_EQUAL(Reciprocals) &&

100
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
View File

@ -343,8 +343,58 @@ MCSymbol *AsmPrinter::getSymbol(const GlobalValue *GV) const {
return TM.getSymbol(GV, *Mang);
}
static MCSymbol *getOrCreateEmuTLSControlSym(MCSymbol *GVSym, MCContext &C) {
return C.getOrCreateSymbol(Twine("__emutls_v.") + GVSym->getName());
}
static MCSymbol *getOrCreateEmuTLSInitSym(MCSymbol *GVSym, MCContext &C) {
return C.getOrCreateSymbol(Twine("__emutls_t.") + GVSym->getName());
}
/// EmitEmulatedTLSControlVariable - Emit the control variable for an emulated TLS variable.
void AsmPrinter::EmitEmulatedTLSControlVariable(const GlobalVariable *GV,
MCSymbol *EmittedSym,
bool AllZeroInitValue) {
// If there is init value, use .data.rel.local section;
// otherwise use the .data section.
MCSection *TLSVarSection = const_cast<MCSection*>(
(GV->hasInitializer() && !AllZeroInitValue)
? getObjFileLowering().getDataRelLocalSection()
: getObjFileLowering().getDataSection());
OutStreamer->SwitchSection(TLSVarSection);
MCSymbol *GVSym = getSymbol(GV);
EmitLinkage(GV, EmittedSym); // same linkage as GV
const DataLayout &DL = GV->getParent()->getDataLayout();
uint64_t Size = DL.getTypeAllocSize(GV->getType()->getElementType());
unsigned AlignLog = getGVAlignmentLog2(GV, DL);
unsigned WordSize = DL.getPointerSize();
unsigned Alignment = DL.getPointerABIAlignment();
EmitAlignment(Log2_32(Alignment));
OutStreamer->EmitLabel(EmittedSym);
OutStreamer->EmitIntValue(Size, WordSize);
OutStreamer->EmitIntValue((1 << AlignLog), WordSize);
OutStreamer->EmitIntValue(0, WordSize);
if (GV->hasInitializer() && !AllZeroInitValue) {
OutStreamer->EmitSymbolValue(
getOrCreateEmuTLSInitSym(GVSym, OutContext), WordSize);
} else
OutStreamer->EmitIntValue(0, WordSize);
if (MAI->hasDotTypeDotSizeDirective())
OutStreamer->emitELFSize(cast<MCSymbolELF>(EmittedSym),
MCConstantExpr::create(4 * WordSize, OutContext));
OutStreamer->AddBlankLine(); // End of the __emutls_v.* variable.
}
/// EmitGlobalVariable - Emit the specified global variable to the .s file.
void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
bool IsEmuTLSVar =
GV->getThreadLocalMode() != llvm::GlobalVariable::NotThreadLocal &&
TM.Options.EmulatedTLS;
assert((!IsEmuTLSVar || getObjFileLowering().getDataRelLocalSection()) &&
"Need relocatable local section for emulated TLS variables");
assert(!(IsEmuTLSVar && GV->hasCommonLinkage()) &&
"No emulated TLS variables in the common section");
if (GV->hasInitializer()) {
// Check to see if this is a special global used by LLVM, if so, emit it.
if (EmitSpecialLLVMGlobal(GV))
@ -355,7 +405,9 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
if (GlobalGOTEquivs.count(getSymbol(GV)))
return;
if (isVerbose()) {
if (isVerbose() && !IsEmuTLSVar) {
// When printing the control variable __emutls_v.*,
// we don't need to print the original TLS variable name.
GV->printAsOperand(OutStreamer->GetCommentOS(),
/*PrintType=*/false, GV->getParent());
OutStreamer->GetCommentOS() << '\n';
@ -363,7 +415,12 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
}
MCSymbol *GVSym = getSymbol(GV);
EmitVisibility(GVSym, GV->getVisibility(), !GV->isDeclaration());
MCSymbol *EmittedSym = IsEmuTLSVar ?
getOrCreateEmuTLSControlSym(GVSym, OutContext) : GVSym;
// getOrCreateEmuTLSControlSym only creates the symbol with name and default attributes.
// GV's or GVSym's attributes will be used for the EmittedSym.
EmitVisibility(EmittedSym, GV->getVisibility(), !GV->isDeclaration());
if (!GV->hasInitializer()) // External globals require no extra code.
return;
@ -374,7 +431,7 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
"' is already defined");
if (MAI->hasDotTypeDotSizeDirective())
OutStreamer->EmitSymbolAttribute(GVSym, MCSA_ELF_TypeObject);
OutStreamer->EmitSymbolAttribute(EmittedSym, MCSA_ELF_TypeObject);
SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
@ -386,6 +443,18 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
// sections and expected to be contiguous (e.g. ObjC metadata).
unsigned AlignLog = getGVAlignmentLog2(GV, DL);
bool AllZeroInitValue = false;
const Constant *InitValue = GV->getInitializer();
if (isa<ConstantAggregateZero>(InitValue))
AllZeroInitValue = true;
else {
const ConstantInt *InitIntValue = dyn_cast<ConstantInt>(InitValue);
if (InitIntValue && InitIntValue->isZero())
AllZeroInitValue = true;
}
if (IsEmuTLSVar)
EmitEmulatedTLSControlVariable(GV, EmittedSym, AllZeroInitValue);
for (const HandlerInfo &HI : Handlers) {
NamedRegionTimer T(HI.TimerName, HI.TimerGroupName, TimePassesIsEnabled);
HI.Handler->setSymbolSize(GVSym, Size);
@ -393,6 +462,8 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
// Handle common and BSS local symbols (.lcomm).
if (GVKind.isCommon() || GVKind.isBSSLocal()) {
assert(!(IsEmuTLSVar && GVKind.isCommon()) &&
"No emulated TLS variables in the common section");
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
unsigned Align = 1 << AlignLog;
@ -437,12 +508,21 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
return;
}
MCSection *TheSection =
if (IsEmuTLSVar && AllZeroInitValue)
return; // No need of initialization values.
MCSymbol *EmittedInitSym = IsEmuTLSVar ?
getOrCreateEmuTLSInitSym(GVSym, OutContext) : GVSym;
// getOrCreateEmuTLSInitSym only creates the symbol with name and default attributes.
// GV's or GVSym's attributes will be used for the EmittedInitSym.
MCSection *TheSection = IsEmuTLSVar ?
getObjFileLowering().getReadOnlySection() :
getObjFileLowering().SectionForGlobal(GV, GVKind, *Mang, TM);
// Handle the zerofill directive on darwin, which is a special form of BSS
// emission.
if (GVKind.isBSSExtern() && MAI->hasMachoZeroFillDirective()) {
if (GVKind.isBSSExtern() && MAI->hasMachoZeroFillDirective() && !IsEmuTLSVar) {
if (Size == 0) Size = 1; // zerofill of 0 bytes is undefined.
// .globl _foo
@ -462,7 +542,7 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
// TLOF class. This will also make it more obvious that stuff like
// MCStreamer::EmitTBSSSymbol is macho specific and only called from macho
// specific code.
if (GVKind.isThreadLocal() && MAI->hasMachoTBSSDirective()) {
if (GVKind.isThreadLocal() && MAI->hasMachoTBSSDirective() && !IsEmuTLSVar) {
// Emit the .tbss symbol
MCSymbol *MangSym =
OutContext.getOrCreateSymbol(GVSym->getName() + Twine("$tlv$init"));
@ -506,16 +586,18 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
OutStreamer->SwitchSection(TheSection);
EmitLinkage(GV, GVSym);
// emutls_t.* symbols are only used in the current compilation unit.
if (!IsEmuTLSVar)
EmitLinkage(GV, EmittedInitSym);
EmitAlignment(AlignLog, GV);
OutStreamer->EmitLabel(GVSym);
OutStreamer->EmitLabel(EmittedInitSym);
EmitGlobalConstant(GV->getParent()->getDataLayout(), GV->getInitializer());
if (MAI->hasDotTypeDotSizeDirective())
// .size foo, 42
OutStreamer->emitELFSize(cast<MCSymbolELF>(GVSym),
OutStreamer->emitELFSize(cast<MCSymbolELF>(EmittedInitSym),
MCConstantExpr::create(Size, OutContext));
OutStreamer->AddBlankLine();

4
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -151,6 +151,9 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(
DIELoc *Loc = new (DIEValueAllocator) DIELoc;
const MCSymbol *Sym = Asm->getSymbol(Global);
if (Global->isThreadLocal()) {
if (Asm->TM.Options.EmulatedTLS) {
// TODO: add debug info for emulated thread local mode.
} else {
// FIXME: Make this work with -gsplit-dwarf.
unsigned PointerSize = Asm->getDataLayout().getPointerSize();
assert((PointerSize == 4 || PointerSize == 8) &&
@ -173,6 +176,7 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(
addUInt(*Loc, dwarf::DW_FORM_data1,
DD->useGNUTLSOpcode() ? dwarf::DW_OP_GNU_push_tls_address
: dwarf::DW_OP_form_tls_address);
}
} else {
DD->addArangeLabel(SymbolCU(this, Sym));
addOpAddress(*Loc, Sym);

43
lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@ -3044,3 +3044,46 @@ bool TargetLowering::expandFP_TO_SINT(SDNode *Node, SDValue &Result,
DAG.getConstant(0, dl, NVT), Ret, ISD::SETLT);
return true;
}
//===----------------------------------------------------------------------===//
// Implementation of Emulated TLS Model
//===----------------------------------------------------------------------===//
SDValue TargetLowering::LowerToTLSEmulatedModel(const GlobalAddressSDNode *GA,
SelectionDAG &DAG) const {
// Access to address of TLS varialbe xyz is lowered to a function call:
// __emutls_get_address( address of global variable named "__emutls_v.xyz" )
EVT PtrVT = getPointerTy(DAG.getDataLayout());
PointerType *VoidPtrType = Type::getInt8PtrTy(*DAG.getContext());
SDLoc dl(GA);
ArgListTy Args;
ArgListEntry Entry;
std::string NameString = ("__emutls_v." + GA->getGlobal()->getName()).str();
Module *VariableModule = const_cast<Module*>(GA->getGlobal()->getParent());
StringRef EmuTlsVarName(NameString);
GlobalVariable *EmuTlsVar = VariableModule->getNamedGlobal(EmuTlsVarName);
if (!EmuTlsVar)
EmuTlsVar = dyn_cast_or_null<GlobalVariable>(
VariableModule->getOrInsertGlobal(EmuTlsVarName, VoidPtrType));
Entry.Node = DAG.getGlobalAddress(EmuTlsVar, dl, PtrVT);
Entry.Ty = VoidPtrType;
Args.push_back(Entry);
SDValue EmuTlsGetAddr = DAG.getExternalSymbol("__emutls_get_address", PtrVT);
TargetLowering::CallLoweringInfo CLI(DAG);
CLI.setDebugLoc(dl).setChain(DAG.getEntryNode());
CLI.setCallee(CallingConv::C, VoidPtrType, EmuTlsGetAddr, std::move(Args), 0);
std::pair<SDValue, SDValue> CallResult = LowerCallTo(CLI);
// TLSADDR will be codegen'ed as call. Inform MFI that function has calls.
// At last for X86 targets, maybe good for other targets too?
MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
MFI->setAdjustsStack(true); // Is this only for X86 target?
MFI->setHasCalls(true);
assert((GA->getOffset() == 0) &&
"Emulated TLS must have zero offset in GlobalAddressSDNode");
return CallResult.first;
}

4
lib/Target/AArch64/AArch64ISelLowering.cpp
View File

@ -3404,6 +3404,10 @@ AArch64TargetLowering::LowerELFGlobalTLSAddress(SDValue Op,
const GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
TLSModel::Model Model = getTargetMachine().getTLSModel(GA->getGlobal());
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(GA, DAG);
if (!EnableAArch64ELFLocalDynamicTLSGeneration) {
if (Model == TLSModel::LocalDynamic)
Model = TLSModel::GeneralDynamic;

2
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -2583,6 +2583,8 @@ ARMTargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const {
assert(Subtarget->isTargetELF() &&
"TLS not implemented for non-ELF targets");
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(GA, DAG);
TLSModel::Model model = getTargetMachine().getTLSModel(GA->getGlobal());

3
lib/Target/Mips/MipsISelLowering.cpp
View File

@ -1723,6 +1723,9 @@ lowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const
// Local Exec TLS Model.
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(GA, DAG);
SDLoc DL(GA);
const GlobalValue *GV = GA->getGlobal();
EVT PtrVT = getPointerTy(DAG.getDataLayout());

3
lib/Target/PowerPC/PPCISelLowering.cpp
View File

@ -2085,6 +2085,9 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op,
// large models could be added if users need it, at the cost of
// additional complexity.
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(GA, DAG);
SDLoc dl(GA);
const GlobalValue *GV = GA->getGlobal();
EVT PtrVT = getPointerTy(DAG.getDataLayout());

3
lib/Target/Sparc/SparcISelLowering.cpp
View File

@ -1872,6 +1872,9 @@ SDValue SparcTargetLowering::LowerGlobalTLSAddress(SDValue Op,
SelectionDAG &DAG) const {
GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(Op);
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(GA, DAG);
SDLoc DL(GA);
const GlobalValue *GV = GA->getGlobal();
EVT PtrVT = getPointerTy(DAG.getDataLayout());

2
lib/Target/SystemZ/SystemZISelLowering.cpp
View File

@ -2485,6 +2485,8 @@ SDValue SystemZTargetLowering::lowerTLSGetOffset(GlobalAddressSDNode *Node,
SDValue SystemZTargetLowering::lowerGlobalTLSAddress(GlobalAddressSDNode *Node,
SelectionDAG &DAG) const {
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(Node, DAG);
SDLoc DL(Node);
const GlobalValue *GV = Node->getGlobal();
EVT PtrVT = getPointerTy(DAG.getDataLayout());

2
lib/Target/X86/X86ISelLowering.cpp
View File

@ -11645,6 +11645,8 @@ X86TargetLowering::LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const {
auto PtrVT = getPointerTy(DAG.getDataLayout());
if (Subtarget->isTargetELF()) {
if (DAG.getTarget().Options.EmulatedTLS)
return LowerToTLSEmulatedModel(GA, DAG);
TLSModel::Model model = DAG.getTarget().getTLSModel(GV);
switch (model) {
case TLSModel::GeneralDynamic:

43
test/CodeGen/AArch64/arm64-tls-dynamic-together.ll
View File

@ -1,4 +1,7 @@
; RUN: llc -O0 -mtriple=arm64-none-linux-gnu -relocation-model=pic -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -O0 -mtriple=arm64-none-linux-gnu -relocation-model=pic \
; RUN: -verify-machineinstrs < %s | FileCheck -check-prefix=CHECK -check-prefix=NOEMU %s
; RUN: llc -emulated-tls -O0 -mtriple=arm64-none-linux-gnu -relocation-model=pic \
; RUN: -verify-machineinstrs < %s | FileCheck -check-prefix=CHECK -check-prefix=EMU %s
; If the .tlsdesccall and blr parts are emitted completely separately (even with
; glue) then LLVM will separate them quite happily (with a spill at O0, hence
@ -13,6 +16,40 @@ define i32 @test_generaldynamic() {
%val = load i32, i32* @general_dynamic_var
ret i32 %val
; CHECK: .tlsdesccall general_dynamic_var
; CHECK-NEXT: blr {{x[0-9]+}}
; NOEMU: .tlsdesccall general_dynamic_var
; NOEMU-NEXT: blr {{x[0-9]+}}
; NOEMU-NOT: __emutls_v.general_dynamic_var:
; EMU: adrp{{.+}}__emutls_v.general_dynamic_var
; EMU: bl __emutls_get_address
; EMU-NOT: __emutls_v.general_dynamic_var
; EMU-NOT: __emutls_t.general_dynamic_var
}
@emulated_init_var = thread_local global i32 37, align 8
define i32 @test_emulated_init() {
; COMMON-LABEL: test_emulated_init:
%val = load i32, i32* @emulated_init_var
ret i32 %val
; EMU: adrp{{.+}}__emutls_v.emulated_init_var
; EMU: bl __emutls_get_address
; EMU-NOT: __emutls_v.general_dynamic_var:
; EMU: .align 3
; EMU-LABEL: __emutls_v.emulated_init_var:
; EMU-NEXT: .xword 4
; EMU-NEXT: .xword 8
; EMU-NEXT: .xword 0
; EMU-NEXT: .xword __emutls_t.emulated_init_var
; EMU-LABEL: __emutls_t.emulated_init_var:
; EMU-NEXT: .word 37
}
; CHECK-NOT: __emutls_v.general_dynamic_var:
; EMU-NOT: __emutls_t.general_dynamic_var

368
test/CodeGen/AArch64/emutls.ll Normal file
View File

@ -0,0 +1,368 @@
; RUN: llc -emulated-tls -mtriple=arm-linux-android \
; RUN: -relocation-model=pic < %s | FileCheck -check-prefix=ARM32 %s
; RUN: llc -emulated-tls -mtriple=aarch64-linux-android \
; RUN: -relocation-model=pic < %s | FileCheck -check-prefix=ARM64 %s
; Copied from X86/emutls.ll
; Use my_emutls_get_address like __emutls_get_address.
@my_emutls_v_xyz = external global i8*, align 4
declare i8* @my_emutls_get_address(i8*)
define i32 @my_get_xyz() {
; ARM32-LABEL: my_get_xyz:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl my_emutls_get_address(PLT)
; ARM32-NEXT: ldr r0, [r0]
; ARM64-LABEL: my_get_xyz:
; ARM64: adrp x0, :got:my_emutls_v_xyz
; ARM64-NEXT: ldr x0, [x0, :got_lo12:my_emutls_v_xyz]
; ARM64-NEXT: bl my_emutls_get_address
; ARM64-NEXT: ldr w0, [x0]
; ARM64-NEXT: ldp x29, x30, [sp]
entry:
%call = call i8* @my_emutls_get_address(i8* bitcast (i8** @my_emutls_v_xyz to i8*))
%0 = bitcast i8* %call to i32*
%1 = load i32, i32* %0, align 4
ret i32 %1
}
@i1 = thread_local global i32 15
@i2 = external thread_local global i32
@i3 = internal thread_local global i32 15
@i4 = hidden thread_local global i32 15
@i5 = external hidden thread_local global i32
@s1 = thread_local global i16 15
@b1 = thread_local global i8 0
define i32 @f1() {
; ARM32-LABEL: f1:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldr r0, [r0]
; ARM64-LABEL: f1:
; ARM64: adrp x0, :got:__emutls_v.i1
; ARM64-NEXT: ldr x0, [x0, :got_lo12:__emutls_v.i1]
; ARM64-NEXT: bl __emutls_get_address
; ARM64-NEXT: ldr w0, [x0]
; ARM64-NEXT: ldp x29, x30, [sp]
entry:
%tmp1 = load i32, i32* @i1
ret i32 %tmp1
}
define i32* @f2() {
; ARM32-LABEL: f2:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: pop
; ARM64-LABEL: f2:
; ARM64: adrp x0, :got:__emutls_v.i1
; ARM64-NEXT: ldr x0, [x0, :got_lo12:__emutls_v.i1]
; ARM64-NEXT: bl __emutls_get_address
; ARM64-NEXT: ldp x29, x30, [sp]
entry:
ret i32* @i1
}
define i32 @f3() nounwind {
; ARM32-LABEL: f3:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldr r0, [r0]
entry:
%tmp1 = load i32, i32* @i2
ret i32 %tmp1
}
define i32* @f4() {
; ARM32-LABEL: f4:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: pop
entry:
ret i32* @i2
}
define i32 @f5() nounwind {
; ARM32-LABEL: f5:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldr r0, [r0]
entry:
%tmp1 = load i32, i32* @i3
ret i32 %tmp1
}
define i32* @f6() {
; ARM32-LABEL: f6:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: pop
entry:
ret i32* @i3
}
define i32 @f7() {
; ARM32-LABEL: f7:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldr r0, [r0]
entry:
%tmp1 = load i32, i32* @i4
ret i32 %tmp1
}
define i32* @f8() {
; ARM32-LABEL: f8:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: pop
entry:
ret i32* @i4
}
define i32 @f9() {
; ARM32-LABEL: f9:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldr r0, [r0]
entry:
%tmp1 = load i32, i32* @i5
ret i32 %tmp1
}
define i32* @f10() {
; ARM32-LABEL: f10:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: pop
entry:
ret i32* @i5
}
define i16 @f11() {
; ARM32-LABEL: f11:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldrh r0, [r0]
entry:
%tmp1 = load i16, i16* @s1
ret i16 %tmp1
}
define i32 @f12() {
; ARM32-LABEL: f12:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldrsh r0, [r0]
entry:
%tmp1 = load i16, i16* @s1
%tmp2 = sext i16 %tmp1 to i32
ret i32 %tmp2
}
define i8 @f13() {
; ARM32-LABEL: f13:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldrb r0, [r0]
; ARM32-NEXT: pop
entry:
%tmp1 = load i8, i8* @b1
ret i8 %tmp1
}
define i32 @f14() {
; ARM32-LABEL: f14:
; ARM32: ldr r0,
; ARM32-NEXT: ldr r1,
; ARM32: add r0, pc, r0
; ARM32-NEXT: ldr r0, [r1, r0]
; ARM32-NEXT: bl __emutls_get_address(PLT)
; ARM32-NEXT: ldrsb r0, [r0]
; ARM32-NEXT: pop
entry:
%tmp1 = load i8, i8* @b1
%tmp2 = sext i8 %tmp1 to i32
ret i32 %tmp2
}
;;;;;;;;;;;;;; 32-bit __emutls_v. and __emutls_t.
; ARM32 .section .data.rel.local,
; ARM32-LABEL: __emutls_v.i1:
; ARM32-NEXT: .long 4
; ARM32-NEXT: .long 4
; ARM32-NEXT: .long 0
; ARM32-NEXT: .long __emutls_t.i1
; ARM32 .section .rodata,
; ARM32-LABEL: __emutls_t.i1:
; ARM32-NEXT: .long 15
; ARM32-NOT: __emutls_v.i2
; ARM32 .section .data.rel.local,
; ARM32-LABEL: __emutls_v.i3:
; ARM32-NEXT: .long 4
; ARM32-NEXT: .long 4
; ARM32-NEXT: .long 0
; ARM32-NEXT: .long __emutls_t.i3
; ARM32 .section .rodata,
; ARM32-LABEL: __emutls_t.i3:
; ARM32-NEXT: .long 15
; ARM32 .section .data.rel.local,
; ARM32-LABEL: __emutls_v.i4:
; ARM32-NEXT: .long 4
; ARM32-NEXT: .long 4
; ARM32-NEXT: .long 0
; ARM32-NEXT: .long __emutls_t.i4
; ARM32 .section .rodata,
; ARM32-LABEL: __emutls_t.i4:
; ARM32-NEXT: .long 15
; ARM32-NOT: __emutls_v.i5:
; ARM32 .hidden __emutls_v.i5
; ARM32-NOT: __emutls_v.i5:
; ARM32 .section .data.rel.local,
; ARM32-LABEL: __emutls_v.s1:
; ARM32-NEXT: .long 2
; ARM32-NEXT: .long 2
; ARM32-NEXT: .long 0
; ARM32-NEXT: .long __emutls_t.s1
; ARM32 .section .rodata,
; ARM32-LABEL: __emutls_t.s1:
; ARM32-NEXT: .short 15
; ARM32 .section .data.rel.local,
; ARM32-LABEL: __emutls_v.b1:
; ARM32-NEXT: .long 1
; ARM32-NEXT: .long 1
; ARM32-NEXT: .long 0
; ARM32-NEXT: .long 0
; ARM32-NOT: __emutls_t.b1
;;;;;;;;;;;;;; 64-bit __emutls_v. and __emutls_t.
; ARM64 .section .data.rel.local,
; ARM64-LABEL: __emutls_v.i1:
; ARM64-NEXT: .xword 4
; ARM64-NEXT: .xword 4
; ARM64-NEXT: .xword 0
; ARM64-NEXT: .xword __emutls_t.i1
; ARM64 .section .rodata,
; ARM64-LABEL: __emutls_t.i1:
; ARM64-NEXT: .word 15
; ARM64-NOT: __emutls_v.i2
; ARM64 .section .data.rel.local,
; ARM64-LABEL: __emutls_v.i3:
; ARM64-NEXT: .xword 4
; ARM64-NEXT: .xword 4
; ARM64-NEXT: .xword 0
; ARM64-NEXT: .xword __emutls_t.i3
; ARM64 .section .rodata,
; ARM64-LABEL: __emutls_t.i3:
; ARM64-NEXT: .word 15
; ARM64 .section .data.rel.local,
; ARM64-LABEL: __emutls_v.i4:
; ARM64-NEXT: .xword 4
; ARM64-NEXT: .xword 4
; ARM64-NEXT: .xword 0
; ARM64-NEXT: .xword __emutls_t.i4
; ARM64 .section .rodata,
; ARM64-LABEL: __emutls_t.i4:
; ARM64-NEXT: .word 15
; ARM64-NOT: __emutls_v.i5:
; ARM64 .hidden __emutls_v.i5
; ARM64-NOT: __emutls_v.i5:
; ARM64 .section .data.rel.local,
; ARM64-LABEL: __emutls_v.s1:
; ARM64-NEXT: .xword 2
; ARM64-NEXT: .xword 2
; ARM64-NEXT: .xword 0
; ARM64-NEXT: .xword __emutls_t.s1
; ARM64 .section .rodata,
; ARM64-LABEL: __emutls_t.s1:
; ARM64-NEXT: .hword 15
; ARM64 .section .data.rel.local,
; ARM64-LABEL: __emutls_v.b1:
; ARM64-NEXT: .xword 1
; ARM64-NEXT: .xword 1
; ARM64-NEXT: .xword 0
; ARM64-NEXT: .xword 0
; ARM64-NOT: __emutls_t.b1

31
test/CodeGen/ARM/emutls1.ll Normal file
View File

@ -0,0 +1,31 @@
; RUN: llc < %s -emulated-tls -march=arm -mtriple=arm-linux-androideabi \
; RUN: | FileCheck %s
; RUN: llc < %s -emulated-tls -march=arm -mtriple=arm-linux-androideabi \
; RUN: -relocation-model=pic | FileCheck %s --check-prefix=PIC
; Compared with tls1.ll, emulated mode should not use __aeabi_read_tp or __tls_get_addr.
; CHECK-NOT: _aeabi_read_tp
; CHECK-NOT: _tls_get_addr
; CHECK: __emutls_get_addr
; CHECK-NOT: __aeabi_read_tp
; CHECK-NOT: _tls_get_addr
; PIC-NOT: _aeabi_read_tp
; PIC-NOT: _tls_get_addr
; PIC: __emutls_get_addr
; PIC-NOT: _aeabi_read_tp
; PIC-NOT: _tls_get_addr
@i = thread_local global i32 15 ; <i32*> [#uses=2]
define i32 @f() {
entry:
%tmp1 = load i32, i32* @i ; <i32> [#uses=1]
ret i32 %tmp1
}
define i32* @g() {
entry:
ret i32* @i
}

74
test/CodeGen/ARM/tls-models.ll
View File

@ -1,5 +1,11 @@
; RUN: llc -march=arm -mtriple=arm-linux-gnueabi < %s | FileCheck -check-prefix=CHECK-NONPIC %s
; RUN: llc -march=arm -mtriple=arm-linux-gnueabi -relocation-model=pic < %s | FileCheck -check-prefix=CHECK-PIC %s
; RUN: llc -march=arm -mtriple=arm-linux-gnueabi < %s \
; RUN: | FileCheck -check-prefix=CHECK-NONPIC -check-prefix=COMMON %s
; RUN: llc -march=arm -mtriple=arm-linux-gnueabi -relocation-model=pic < %s \
; RUN: | FileCheck -check-prefix=CHECK-PIC -check-prefix=COMMON %s
; RUN: llc -emulated-tls -march=arm -mtriple=arm-linux-gnueabi < %s \
; RUN: | FileCheck -check-prefix=EMUNONPIC -check-prefix=EMU -check-prefix=COMMON %s
; RUN: llc -emulated-tls -march=arm -mtriple=arm-linux-gnueabi -relocation-model=pic < %s \
; RUN: | FileCheck -check-prefix=EMUPIC -check-prefix=EMU -check-prefix=COMMON %s
@external_gd = external thread_local global i32
@ -20,23 +26,23 @@ define i32* @f1() {
entry:
ret i32* @external_gd
; COMMON-LABEL: f1:
; Non-PIC code can use initial-exec, PIC code has to use general dynamic.
; CHECK-NONPIC-LABEL: f1:
; CHECK-NONPIC: external_gd(GOTTPOFF)
; CHECK-PIC-LABEL: f1:
; CHECK-PIC: external_gd(TLSGD)
; EMU: __emutls_get_address
}
define i32* @f2() {
entry:
ret i32* @internal_gd
; COMMON-LABEL: f2:
; Non-PIC code can use local exec, PIC code can use local dynamic,
; but that is not implemented, so falls back to general dynamic.
; CHECK-NONPIC-LABEL: f2:
; CHECK-NONPIC: internal_gd(TPOFF)
; CHECK-PIC-LABEL: f2:
; CHECK-PIC: internal_gd(TLSGD)
; EMU: __emutls_get_address
}
@ -46,24 +52,24 @@ define i32* @f3() {
entry:
ret i32* @external_ld
; COMMON-LABEL: f3:
; Non-PIC code can use initial exec, PIC should use local dynamic,
; but that is not implemented, so falls back to general dynamic.
; CHECK-NONPIC-LABEL: f3:
; CHECK-NONPIC: external_ld(GOTTPOFF)
; CHECK-PIC-LABEL: f3:
; CHECK-PIC: external_ld(TLSGD)
; EMU: __emutls_get_address
}
define i32* @f4() {
entry:
ret i32* @internal_ld
; COMMON-LABEL: f4:
; Non-PIC code can use local exec, PIC code can use local dynamic,
; but that is not implemented, so it falls back to general dynamic.
; CHECK-NONPIC-LABEL: f4:
; CHECK-NONPIC: internal_ld(TPOFF)
; CHECK-PIC-LABEL: f4:
; CHECK-PIC: internal_ld(TLSGD)
; EMU: __emutls_get_address
}
@ -73,22 +79,22 @@ define i32* @f5() {
entry:
ret i32* @external_ie
; COMMON-LABEL: f5:
; Non-PIC and PIC code will use initial exec as specified.
; CHECK-NONPIC-LABEL: f5:
; CHECK-NONPIC: external_ie(GOTTPOFF)
; CHECK-PIC-LABEL: f5:
; CHECK-PIC: external_ie(GOTTPOFF)
; EMU: __emutls_get_address
}
define i32* @f6() {
entry:
ret i32* @internal_ie
; COMMON-LABEL: f6:
; Non-PIC code can use local exec, PIC code use initial exec as specified.
; CHECK-NONPIC-LABEL: f6:
; CHECK-NONPIC: internal_ie(TPOFF)
; CHECK-PIC-LABEL: f6:
; CHECK-PIC: internal_ie(GOTTPOFF)
; EMU: __emutls_get_address
}
@ -98,20 +104,52 @@ define i32* @f7() {
entry:
ret i32* @external_le
; COMMON-LABEL: f7:
; Non-PIC and PIC code will use local exec as specified.
; CHECK-NONPIC-LABEL: f7:
; CHECK-NONPIC: external_le(TPOFF)
; CHECK-PIC-LABEL: f7:
; CHECK-PIC: external_le(TPOFF)
; EMU: __emutls_get_address
}
define i32* @f8() {
entry:
ret i32* @internal_le
; COMMON-LABEL: f8:
; Non-PIC and PIC code will use local exec as specified.
; CHECK-NONPIC-LABEL: f8:
; CHECK-NONPIC: internal_le(TPOFF)
; CHECK-PIC-LABEL: f8:
; CHECK-PIC: internal_le(TPOFF)
; EMU: __emutls_get_address
}
; ----- emulated specified -----
; External declaration has no initializer.
; Internal definition has initializer.
; EMU-NOT: __emutls_t.external_gd
; EMU-NOT: __emutls_v.external_gd
; EMU: .align 2
; EMU-LABEL: __emutls_v.internal_gd:
; EMU-NEXT: .long 4
; EMU-NEXT: .long 4
; EMU-NEXT: .long 0
; EMU-NEXT: .long __emutls_t.internal_gd
; EMU-LABEL: __emutls_t.internal_gd:
; EMU-NEXT: .long 42
; EMU-NOT: __emutls_t.external_gd
; __emutls_t and __emutls_v are the same for PIC and non-PIC modes.
; EMU-NOT: __emutls_t.external_gd
; EMU-NOT: __emutls_v.external_gd
; EMU: .align 2
; EMU-LABEL: __emutls_v.internal_le:
; EMU-NEXT: .long 4
; EMU-NEXT: .long 4
; EMU-NEXT: .long 0
; EMU-NEXT: .long __emutls_t.internal_le
; EMU-LABEL: __emutls_t.internal_le:
; EMU-NEXT: .long 42
; EMU-NOT: __emutls_t.external_le

23
test/CodeGen/ARM/tls3.ll
View File

@ -1,5 +1,9 @@
; RUN: llc < %s -march=arm -mtriple=arm-linux-gnueabi | \
; RUN: grep "tbss"
; RUN: llc < %s -march=arm -mtriple=arm-linux-gnueabi | \
; RUN: FileCheck %s -check-prefix=CHECK -check-prefix=NOEMU
; RUN: llc < %s -emulated-tls -march=arm -mtriple=arm-linux-gnueabi | \
; RUN: FileCheck %s -check-prefix=CHECK -check-prefix=EMU
%struct.anon = type { i32, i32 }
@teste = internal thread_local global %struct.anon zeroinitializer ; <%struct.anon*> [#uses=1]
@ -9,3 +13,22 @@ entry:
%tmp2 = load i32, i32* getelementptr (%struct.anon, %struct.anon* @teste, i32 0, i32 0), align 8 ; <i32> [#uses=1]
ret i32 %tmp2
}
; CHECK-LABEL: main:
; NOEMU-NOT: __emutls_get_address
; NOEMU: .section .tbss
; NOEMU-LABEL: teste:
; NOEMU-NEXT: .zero 8
; CHECK-NOT: __emutls_t.teste
; EMU: .align 2
; EMU-LABEL: __emutls_v.teste:
; EMU-NEXT: .long 8
; EMU-NEXT: .long 4
; EMU-NEXT: .long 0
; EMU-NEXT: .long 0
; CHECK-NOT: teste:
; CHECK-NOT: __emutls_t.teste

298
test/CodeGen/Generic/emutls.ll Normal file
View File

@ -0,0 +1,298 @@
; RUN: llc < %s -emulated-tls -mtriple=arm-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=ARM_32 %s
; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -relocation-model=pic \
; RUN: | FileCheck -check-prefix=ARM_32 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -relocation-model=pic -O3 \
; RUN: | FileCheck -check-prefix=ARM_32 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-linux-android -relocation-model=pic -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=arm-linux-androidabi -O3 \
; RUN: | FileCheck -check-prefix=ARM_32 %s
; RUN: llc < %s -emulated-tls -mtriple=aarch64-linux-android -O3 \
; RUN: | FileCheck -check-prefix=ARM_64 %s
; RUN: llc < %s -emulated-tls -mtriple=i686-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=X86_32 %s
; RUN: llc < %s -emulated-tls -mtriple=x86_64-linux-android -march=x86 -relocation-model=pic \
; RUN: | FileCheck -check-prefix=X86_32 %s
; RUN: llc < %s -emulated-tls -mtriple=x86_64-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=X86_64 %s
; RUN: llc < %s -emulated-tls -mtriple=mipsel-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=MIPS_32 %s
; RUN: llc < %s -emulated-tls -mtriple=mips64el-linux-android -relocation-model=pic \
; RUN: | FileCheck -check-prefix=MIPS_64 %s
; RUN: llc < %s -emulated-tls -march=ppc64 -relocation-model=pic \
; RUN: | FileCheck %s
; RUN: llc < %s -emulated-tls -march=ppc32 -relocation-model=pic \
; RUN: | FileCheck %s
; RUN: llc < %s -emulated-tls -march=x86 -mtriple=i386-linux-gnu -relocation-model=pic \
; RUN: | FileCheck %s
; Make sure that TLS symbols are emitted in expected order.
@external_x = external thread_local global i32, align 8
@external_y = thread_local global i8 7, align 2
@internal_y = internal thread_local global i64 9, align 16
define i32* @get_external_x() {
entry:
ret i32* @external_x
}
define i8* @get_external_y() {
entry:
ret i8* @external_y
}
define i64* @get_internal_y() {
entry:
ret i64* @internal_y
}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; targets independent mode
; CHECK-LABEL: get_external_x:
; CHECK-NOT: _tls_get_address
; CHECK: __emutls_get_address
; CHECK-LABEL: get_external_y:
; CHECK: __emutls_get_address
; CHECK-NOT: _tls_get_address
; CHECK-LABEL: get_internal_y:
; CHECK-NOT: __emutls_t.external_x:
; CHECK-NOT: __emutls_v.external_x:
; CHECK-LABEL: __emutls_v.external_y:
; CHECK-LABEL: __emutls_t.external_y:
; CHECK: __emutls_t.external_y
; CHECK-LABEL: __emutls_v.internal_y:
; CHECK-LABEL: __emutls_t.internal_y:
; CHECK: __emutls_t.internal_y
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 32-bit mode
; ARM_32-LABEL: get_external_x:
; X86_32-LABEL: get_external_x:
; MIPS-LABEL: get_external_x:
; ARM_32: bl __emutls_get_address
; ARM_32: .long __emutls_v.external_x
; X86_32: movl __emutls_v.external_x
; X86_32: calll __emutls_get_address
; ARM_32-LABEL: get_external_y:
; X86_32-LABEL: get_external_y:
; MIPS_32-LABEL: get_external_y:
; ARM_32: bl __emutls_get_address
; ARM_32: .long __emutls_v.external_y
; X86_32: movl __emutls_v.external_y
; X86_32: calll __emutls_get_address
; ARM_32-LABEL: get_internal_y:
; X86_32-LABEL: get_internal_y:
; MIPS_32-LABEL: get_internal_y:
; ARM_32: bl __emutls_get_address
; ARM_32: .long __emutls_v.internal_y
; X86_32: movl __emutls_v.internal_y
; X86_32: calll __emutls_get_address
; MIPS_32: lw {{.+}}(__emutls_v.internal_y
; MIPS_32: lw {{.+}}call16(__emutls_get_address
; ARM_32-NOT: __emutls_t.external_x
; X86_32-NOT: __emutls_t.external_x
; MIPS_32-NOT: __emutls_t.external_x
; ARM_32-NOT: __emutls_v.external_x:
; X86_32-NOT: __emutls_v.external_x:
; MIPS_32-NOT: __emutls_v.external_x:
; ARM_32: .section .data.rel.local
; X86_32: .section .data.rel.local
; MIPS_32: .section .data.rel.local
; ARM_32: .align 2
; X86_32: .align 4
; MIPS_32: .align 2
; ARM_32-LABEL: __emutls_v.external_y:
; X86_32-LABEL: __emutls_v.external_y:
; MIPS_32-LABEL: __emutls_v.external_y:
; ARM_32-NEXT: .long 1
; ARM_32-NEXT: .long 2
; ARM_32-NEXT: .long 0
; ARM_32-NEXT: .long __emutls_t.external_y
; X86_32-NEXT: .long 1
; X86_32-NEXT: .long 2
; X86_32-NEXT: .long 0
; X86_32-NEXT: .long __emutls_t.external_y
; ARM_32: .section .rodata,
; X86_32: .section .rodata,
; MIPS_32: .section .rodata,
; ARM_32-LABEL: __emutls_t.external_y:
; X86_32-LABEL: __emutls_t.external_y:
; MIPS_32-LABEL: __emutls_t.external_y:
; ARM_32-NEXT: .byte 7
; X86_32-NEXT: .byte 7
; MIPS_32-NEXT: .byte 7
; ARM_32: .section .data.rel.local
; X86_32: .section .data.rel.local
; MIPS_32: .section .data.rel.local
; ARM_32: .align 2
; X86_32: .align 4
; MIPS_32: .align 2
; ARM_32-LABEL: __emutls_v.internal_y:
; X86_32-LABEL: __emutls_v.internal_y:
; MIPS_32-LABEL: __emutls_v.internal_y:
; ARM_32-NEXT: .long 8
; ARM_32-NEXT: .long 16
; ARM_32-NEXT: .long 0
; ARM_32-NEXT: .long __emutls_t.internal_y
; X86_32-NEXT: .long 8
; X86_32-NEXT: .long 16
; X86_32-NEXT: .long 0
; X86_32-NEXT: .long __emutls_t.internal_y
; MIPS_32-NEXT: .4byte 8
; MIPS_32-NEXT: .4byte 16
; MIPS_32-NEXT: .4byte 0
; MIPS_32-NEXT: .4byte __emutls_t.internal_y
; ARM_32-LABEL: __emutls_t.internal_y:
; X86_32-LABEL: __emutls_t.internal_y:
; MIPS_32-LABEL: __emutls_t.internal_y:
; ARM_32-NEXT: .long 9
; ARM_32-NEXT: .long 0
; X86_32-NEXT: .quad 9
; MIPS_32-NEXT: .8byte 9
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 64-bit mode
; X86_64-LABEL: get_external_x:
; ARM_64-LABEL: get_external_x:
; MIPS_64-LABEL: get_external_x:
; X86_64: __emutls_v.external_x
; X86_64: __emutls_get_address
; ARM_64: __emutls_v.external_x
; ARM_64: __emutls_get_address
; X86_64-LABEL: get_external_y:
; ARM_64-LABEL: get_external_y:
; MIPS_64-LABEL: get_external_y:
; X86_64: __emutls_v.external_y
; X86_64: __emutls_get_address
; ARM_64: __emutls_v.external_y
; ARM_64: __emutls_get_address
; X86_64-LABEL: get_internal_y:
; ARM_64-LABEL: get_internal_y:
; MIPS_64-LABEL: get_internal_y:
; X86_64: __emutls_v.internal_y
; X86_64: __emutls_get_address
; ARM_64: __emutls_v.internal_y
; ARM_64: __emutls_get_address
; MIPS_64: ld {{.+}}(__emutls_v.internal_y
; MIPS_64: ld {{.+}}call16(__emutls_get_address
; ARM_64-NOT: __emutls_t.external_x
; X86_64-NOT: __emutls_t.external_x
; MIPS_64-NOT: __emutls_t.external_x
; X86_64-NOT: __emutls_v.external_x:
; ARM_64-NOT: __emutls_v.external_x:
; MIPS_64-NOT: __emutls_v.external_x:
; X86_64: .align 8
; ARM_64: .align 3
; X86_64-LABEL: __emutls_v.external_y:
; ARM_64-LABEL: __emutls_v.external_y:
; MIPS_64-LABEL: __emutls_v.external_y:
; X86_64-NEXT: .quad 1
; X86_64-NEXT: .quad 2
; X86_64-NEXT: .quad 0
; X86_64-NEXT: .quad __emutls_t.external_y
; ARM_64-NEXT: .xword 1
; ARM_64-NEXT: .xword 2
; ARM_64-NEXT: .xword 0
; ARM_64-NEXT: .xword __emutls_t.external_y
; X86_64-NOT: __emutls_v.external_x:
; ARM_64-NOT: __emutls_v.external_x:
; MIPS_64-NOT: __emutls_v.external_x:
; ARM_64: .section .rodata,
; X86_64: .section .rodata,
; MIPS_64: .section .rodata,
; X86_64-LABEL: __emutls_t.external_y:
; ARM_64-LABEL: __emutls_t.external_y:
; MIPS_64-LABEL: __emutls_t.external_y:
; X86_64-NEXT: .byte 7
; ARM_64-NEXT: .byte 7
; MIPS_64-NEXT: .byte 7
; ARM_64: .section .data.rel.local
; X86_64: .section .data.rel.local
; MIPS_64: .section .data.rel.local
; X86_64: .align 8
; ARM_64: .align 3
; MIPS_64: .align 3
; X86_64-LABEL: __emutls_v.internal_y:
; ARM_64-LABEL: __emutls_v.internal_y:
; MIPS_64-LABEL: __emutls_v.internal_y:
; X86_64-NEXT: .quad 8
; X86_64-NEXT: .quad 16
; X86_64-NEXT: .quad 0
; X86_64-NEXT: .quad __emutls_t.internal_y
; ARM_64-NEXT: .xword 8
; ARM_64-NEXT: .xword 16
; ARM_64-NEXT: .xword 0
; ARM_64-NEXT: .xword __emutls_t.internal_y
; MIPS_64-NEXT: .8byte 8
; MIPS_64-NEXT: .8byte 16
; MIPS_64-NEXT: .8byte 0
; MIPS_64-NEXT: .8byte __emutls_t.internal_y
; ARM_64: .section .rodata,
; X86_64: .section .rodata,
; MIPS_64: .section .rodata,
; X86_64-LABEL: __emutls_t.internal_y:
; ARM_64-LABEL: __emutls_t.internal_y:
; MIPS_64-LABEL: __emutls_t.internal_y:
; X86_64-NEXT: .quad 9
; ARM_64-NEXT: .xword 9
; MIPS_64-NEXT: .8byte 9

168
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; RUN: llc < %s -emulated-tls -march=x86 -mtriple=i386-linux-gnu -relocation-model=pic | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mtriple=x86_64-linux-gnu -relocation-model=pic | FileCheck -check-prefix=X64 %s
; RUN: llc < %s -emulated-tls -march=x86 -mtriple=i386-linux-android -relocation-model=pic | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck -check-prefix=X64 %s
; Use my_emutls_get_address like __emutls_get_address.
@my_emutls_v_xyz = external global i8*, align 4
declare i8* @my_emutls_get_address(i8*)
define i32 @my_get_xyz() {
; X32-LABEL: my_get_xyz:
; X32: movl my_emutls_v_xyz@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll my_emutls_get_address@PLT
; X64-LABEL: my_get_xyz:
; X64: movq my_emutls_v_xyz@GOTPCREL(%rip), %rdi
; X64-NEXT: callq my_emutls_get_address@PLT
; X64-NEXT: movl (%rax), %eax
entry:
%call = call i8* @my_emutls_get_address(i8* bitcast (i8** @my_emutls_v_xyz to i8*))
%0 = bitcast i8* %call to i32*
%1 = load i32, i32* %0, align 4
ret i32 %1
}
@i = thread_local global i32 15
@j = internal thread_local global i32 42
@k = internal thread_local global i32 0, align 8
define i32 @f1() {
entry:
%tmp1 = load i32, i32* @i
ret i32 %tmp1
}
; X32-LABEL: f1:
; X32: movl __emutls_v.i@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X64-LABEL: f1:
; X64: movq __emutls_v.i@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
; X64-NEXT: movl (%rax), %eax
@i2 = external thread_local global i32
define i32* @f2() {
entry:
ret i32* @i
}
; X32-LABEL: f2:
; X64-LABEL: f2:
define i32 @f3() {
entry:
%tmp1 = load i32, i32* @i ; <i32> [#uses=1]
ret i32 %tmp1
}
; X32-LABEL: f3:
; X64-LABEL: f3:
define i32* @f4() nounwind {
entry:
ret i32* @i
}
; X32-LABEL: f4:
; X64-LABEL: f4:
define i32 @f5() nounwind {
entry:
%0 = load i32, i32* @j, align 4
%1 = load i32, i32* @k, align 4
%add = add nsw i32 %0, %1
ret i32 %add
}
; X32-LABEL: f5:
; X32: movl __emutls_v.j@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X32-NEXT: movl (%eax), %esi
; X32-NEXT: movl __emutls_v.k@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X32-NEXT: addl (%eax), %esi
; X32-NEXT: movl %esi, %eax
; X64-LABEL: f5:
; X64: movq __emutls_v.j@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
; X64-NEXT: movl (%rax), %ebx
; X64-NEXT: movq __emutls_v.k@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
; X64-NEXT: addl (%rax), %ebx
; X64-NEXT: movl %ebx, %eax
;;;;; 32-bit targets
; X32: .section .data.rel.local,
; X32-LABEL: __emutls_v.i:
; X32-NEXT: .long 4
; X32-NEXT: .long 4
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.i
; X32: .section .rodata,
; X32-LABEL: __emutls_t.i:
; X32-NEXT: .long 15
; X32: .section .data.rel.local,
; X32-LABEL: __emutls_v.j:
; X32-NEXT: .long 4
; X32-NEXT: .long 4
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.j
; X32: .section .rodata,
; X32-LABEL: __emutls_t.j:
; X32-NEXT: .long 42
; X32: .data
; X32-LABEL: __emutls_v.k:
; X32-NEXT: .long 4
; X32-NEXT: .long 8
; X32-NEXT: .long 0
; X32-NEXT: .long 0
; X32-NOT: __emutls_t.k:
;;;;; 64-bit targets
; X64: .section .data.rel.local,
; X64-LABEL: __emutls_v.i:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.i
; X64: .section .rodata,
; X64-LABEL: __emutls_t.i:
; X64-NEXT: .long 15
; X64: .section .data.rel.local,
; X64-LABEL: __emutls_v.j:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.j
; X64: .section .rodata,
; X64-LABEL: __emutls_t.j:
; X64-NEXT: .long 42
; X64: .data
; X64-LABEL: __emutls_v.k:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 8
; X64-NEXT: .quad 0
; X64-NEXT: .quad 0
; X64-NOT: __emutls_t.k:

131
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; RUN: llc < %s -emulated-tls -march=x86 -mcpu=generic -mtriple=i386-linux-gnu -relocation-model=pic -enable-pie \
; RUN: | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mcpu=generic -mtriple=x86_64-linux-gnu -relocation-model=pic -enable-pie \
; RUN: | FileCheck -check-prefix=X64 %s
; RUN: llc < %s -emulated-tls -march=x86 -mcpu=generic -mtriple=i386-linux-android -relocation-model=pic -enable-pie \
; RUN: | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mcpu=generic -mtriple=x86_64-linux-android -relocation-model=pic -enable-pie \
; RUN: | FileCheck -check-prefix=X64 %s
; Use my_emutls_get_address like __emutls_get_address.
@my_emutls_v_xyz = external global i8*, align 4
declare i8* @my_emutls_get_address(i8*)
define i32 @my_get_xyz() {
; X32-LABEL: my_get_xyz:
; X32: movl my_emutls_v_xyz@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll my_emutls_get_address@PLT
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $8, %esp
; X32-NEXT: popl %ebx
; X32-NEXT: retl
; X64-LABEL: my_get_xyz:
; X64: movq my_emutls_v_xyz@GOTPCREL(%rip), %rdi
; X64-NEXT: callq my_emutls_get_address@PLT
; X64-NEXT: movl (%rax), %eax
; X64-NEXT: popq %rdx
; X64-NEXT: retq
entry:
%call = call i8* @my_emutls_get_address(i8* bitcast (i8** @my_emutls_v_xyz to i8*))
%0 = bitcast i8* %call to i32*
%1 = load i32, i32* %0, align 4
ret i32 %1
}
@i = thread_local global i32 15
@i2 = external thread_local global i32
define i32 @f1() {
; X32-LABEL: f1:
; X32: movl __emutls_v.i@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $8, %esp
; X32-NEXT: popl %ebx
; X32-NEXT: retl
; X64-LABEL: f1:
; X64: movq __emutls_v.i@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
; X64-NEXT: movl (%rax), %eax
; X64-NEXT: popq %rdx
; X64-NEXT: retq
entry:
%tmp1 = load i32, i32* @i
ret i32 %tmp1
}
define i32* @f2() {
; X32-LABEL: f2:
; X32: movl __emutls_v.i@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X64-LABEL: f2:
; X64: movq __emutls_v.i@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
entry:
ret i32* @i
}
define i32 @f3() {
; X32-LABEL: f3:
; X32: movl __emutls_v.i2@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X64-LABEL: f3:
; X64: movq __emutls_v.i2@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
entry:
%tmp1 = load i32, i32* @i2
ret i32 %tmp1
}
define i32* @f4() {
; X32-LABEL: f4:
; X32: movl __emutls_v.i2@GOT(%ebx), %eax
; X32-NEXT: movl %eax, (%esp)
; X32-NEXT: calll __emutls_get_address@PLT
; X64-LABEL: f4:
; X64: movq __emutls_v.i2@GOTPCREL(%rip), %rdi
; X64-NEXT: callq __emutls_get_address@PLT
entry:
ret i32* @i2
}
;;;;; 32-bit targets
; X32: .section .data.rel.local,
; X32-LABEL: __emutls_v.i:
; X32-NEXT: .long 4
; X32-NEXT: .long 4
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.i
; X32: .section .rodata,
; X32-LABEL: __emutls_t.i:
; X32-NEXT: .long 15
; X32-NOT: __emutls_v.i2
; X32-NOT: __emutls_t.i2
;;;;; 64-bit targets
; X64: .section .data.rel.local,
; X64-LABEL: __emutls_v.i:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.i
; X64: .section .rodata,
; X64-LABEL: __emutls_t.i:
; X64-NEXT: .long 15
; X64-NOT: __emutls_v.i2
; X64-NOT: __emutls_t.i2

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; RUN: llc < %s -emulated-tls -march=x86 -mtriple=i386-linux-gnu | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mtriple=x86_64-linux-gnu | FileCheck -check-prefix=X64 %s
; RUN: llc < %s -emulated-tls -march=x86 -mtriple=x86-linux-android | FileCheck -check-prefix=X32 %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mtriple=x86_64-linux-android | FileCheck -check-prefix=X64 %s
; Copied from tls.ll; emulated TLS model is not implemented
; for *-pc-win32 and *-pc-winows targets yet.
; Use my_emutls_get_address like __emutls_get_address.
@my_emutls_v_xyz = external global i8*, align 4
declare i8* @my_emutls_get_address(i8*)
define i32 @my_get_xyz() {
; X32-LABEL: my_get_xyz:
; X32: movl $my_emutls_v_xyz, (%esp)
; X32-NEXT: calll my_emutls_get_address
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
; X64-LABEL: my_get_xyz:
; X64: movl $my_emutls_v_xyz, %edi
; X64-NEXT: callq my_emutls_get_address
; X64-NEXT: movl (%rax), %eax
; X64-NEXT: popq %rdx
; X64-NEXT: retq
entry:
%call = call i8* @my_emutls_get_address(i8* bitcast (i8** @my_emutls_v_xyz to i8*))
%0 = bitcast i8* %call to i32*
%1 = load i32, i32* %0, align 4
ret i32 %1
}
@i1 = thread_local global i32 15
@i2 = external thread_local global i32
@i3 = internal thread_local global i32 15
@i4 = hidden thread_local global i32 15
@i5 = external hidden thread_local global i32
@s1 = thread_local global i16 15
@b1 = thread_local global i8 0
define i32 @f1() {
; X32-LABEL: f1:
; X32: movl $__emutls_v.i1, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
; X64-LABEL: f1:
; X64: movl $__emutls_v.i1, %edi
; X64-NEXT: callq __emutls_get_address
; X64-NEXT: movl (%rax), %eax
; X64-NEXT: popq %rdx
; X64-NEXT: retq
entry:
%tmp1 = load i32, i32* @i1
ret i32 %tmp1
}
define i32* @f2() {
; X32-LABEL: f2:
; X32: movl $__emutls_v.i1, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
; X64-LABEL: f2:
; X64: movl $__emutls_v.i1, %edi
; X64-NEXT: callq __emutls_get_address
; X64-NEXT: popq %rdx
; X64-NEXT: retq
entry:
ret i32* @i1
}
define i32 @f3() nounwind {
; X32-LABEL: f3:
; X32: movl $__emutls_v.i2, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i32, i32* @i2
ret i32 %tmp1
}
define i32* @f4() {
; X32-LABEL: f4:
; X32: movl $__emutls_v.i2, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
ret i32* @i2
}
define i32 @f5() nounwind {
; X32-LABEL: f5:
; X32: movl $__emutls_v.i3, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i32, i32* @i3
ret i32 %tmp1
}
define i32* @f6() {
; X32-LABEL: f6:
; X32: movl $__emutls_v.i3, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
ret i32* @i3
}
define i32 @f7() {
; X32-LABEL: f7:
; X32: movl $__emutls_v.i4, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i32, i32* @i4
ret i32 %tmp1
}
define i32* @f8() {
; X32-LABEL: f8:
; X32: movl $__emutls_v.i4, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
ret i32* @i4
}
define i32 @f9() {
; X32-LABEL: f9:
; X32: movl $__emutls_v.i5, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i32, i32* @i5
ret i32 %tmp1
}
define i32* @f10() {
; X32-LABEL: f10:
; X32: movl $__emutls_v.i5, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
ret i32* @i5
}
define i16 @f11() {
; X32-LABEL: f11:
; X32: movl $__emutls_v.s1, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movzwl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i16, i16* @s1
ret i16 %tmp1
}
define i32 @f12() {
; X32-LABEL: f12:
; X32: movl $__emutls_v.s1, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movswl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i16, i16* @s1
%tmp2 = sext i16 %tmp1 to i32
ret i32 %tmp2
}
define i8 @f13() {
; X32-LABEL: f13:
; X32: movl $__emutls_v.b1, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movb (%eax), %al
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i8, i8* @b1
ret i8 %tmp1
}
define i32 @f14() {
; X32-LABEL: f14:
; X32: movl $__emutls_v.b1, (%esp)
; X32-NEXT: calll __emutls_get_address
; X32-NEXT: movsbl (%eax), %eax
; X32-NEXT: addl $12, %esp
; X32-NEXT: retl
entry:
%tmp1 = load i8, i8* @b1
%tmp2 = sext i8 %tmp1 to i32
ret i32 %tmp2
}
;;;;;;;;;;;;;; 32-bit __emutls_v. and __emutls_t.
; X32 .section .data.rel.local,
; X32-LABEL: __emutls_v.i1:
; X32-NEXT: .long 4
; X32-NEXT: .long 4
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.i1
; X32 .section .rodata,
; X32-LABEL: __emutls_t.i1:
; X32-NEXT: .long 15
; X32-NOT: __emutls_v.i2
; X32 .section .data.rel.local,
; X32-LABEL: __emutls_v.i3:
; X32-NEXT: .long 4
; X32-NEXT: .long 4
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.i3
; X32 .section .rodata,
; X32-LABEL: __emutls_t.i3:
; X32-NEXT: .long 15
; X32 .section .data.rel.local,
; X32-LABEL: __emutls_v.i4:
; X32-NEXT: .long 4
; X32-NEXT: .long 4
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.i4
; X32 .section .rodata,
; X32-LABEL: __emutls_t.i4:
; X32-NEXT: .long 15
; X32-NOT: __emutls_v.i5:
; X32 .hidden __emutls_v.i5
; X32-NOT: __emutls_v.i5:
; X32 .section .data.rel.local,
; X32-LABEL: __emutls_v.s1:
; X32-NEXT: .long 2
; X32-NEXT: .long 2
; X32-NEXT: .long 0
; X32-NEXT: .long __emutls_t.s1
; X32 .section .rodata,
; X32-LABEL: __emutls_t.s1:
; X32-NEXT: .short 15
; X32 .section .data.rel.local,
; X32-LABEL: __emutls_v.b1:
; X32-NEXT: .long 1
; X32-NEXT: .long 1
; X32-NEXT: .long 0
; X32-NEXT: .long 0
; X32-NOT: __emutls_t.b1
;;;;;;;;;;;;;; 64-bit __emutls_v. and __emutls_t.
; X64 .section .data.rel.local,
; X64-LABEL: __emutls_v.i1:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.i1
; X64 .section .rodata,
; X64-LABEL: __emutls_t.i1:
; X64-NEXT: .long 15
; X64-NOT: __emutls_v.i2
; X64 .section .data.rel.local,
; X64-LABEL: __emutls_v.i3:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.i3
; X64 .section .rodata,
; X64-LABEL: __emutls_t.i3:
; X64-NEXT: .long 15
; X64 .section .data.rel.local,
; X64-LABEL: __emutls_v.i4:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.i4
; X64 .section .rodata,
; X64-LABEL: __emutls_t.i4:
; X64-NEXT: .long 15
; X64-NOT: __emutls_v.i5:
; X64 .hidden __emutls_v.i5
; X64-NOT: __emutls_v.i5:
; X64 .section .data.rel.local,
; X64-LABEL: __emutls_v.s1:
; X64-NEXT: .quad 2
; X64-NEXT: .quad 2
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.s1
; X64 .section .rodata,
; X64-LABEL: __emutls_t.s1:
; X64-NEXT: .short 15
; X64 .section .data.rel.local,
; X64-LABEL: __emutls_v.b1:
; X64-NEXT: .quad 1
; X64-NEXT: .quad 1
; X64-NEXT: .quad 0
; X64-NEXT: .quad 0
; X64-NOT: __emutls_t.b1

48
test/CodeGen/X86/fast-isel-emutls.ll Normal file
View File

@ -0,0 +1,48 @@
; RUN: llc < %s -emulated-tls -march=x86 -relocation-model=pic -mtriple=i686-unknown-linux-gnu -fast-isel | FileCheck %s
; PR3654
@v = thread_local global i32 0
define i32 @f() nounwind {
entry:
%t = load i32, i32* @v
%s = add i32 %t, 1
ret i32 %s
}
; CHECK-LABEL: f:
; CHECK: movl __emutls_v.v@GOT(%ebx), %eax
; CHECK-NEXT: movl %eax, (%esp)
; CHECK-NEXT: calll __emutls_get_address@PLT
; CHECK-NEXT: movl (%eax), %eax
@alias = internal alias i32* @v
define i32 @f_alias() nounwind {
entry:
%t = load i32, i32* @v
%s = add i32 %t, 1
ret i32 %s
}
; CHECK-LABEL: f_alias:
; CHECK: movl __emutls_v.v@GOT(%ebx), %eax
; CHECK-NEXT: movl %eax, (%esp)
; CHECK-NEXT: calll __emutls_get_address@PLT
; CHECK-NEXT: movl (%eax), %eax
; Use my_emutls_get_address like __emutls_get_address.
@my_emutls_v_xyz = external global i8*, align 4
declare i8* @my_emutls_get_address(i8*)
define i32 @my_get_xyz() {
entry:
%call = call i8* @my_emutls_get_address(i8* bitcast (i8** @my_emutls_v_xyz to i8*))
%0 = bitcast i8* %call to i32*
%1 = load i32, i32* %0, align 4
ret i32 %1
}
; CHECK-LABEL: my_get_xyz:
; CHECK: movl my_emutls_v_xyz@GOT(%ebx), %eax
; CHECK-NEXT: movl %eax, (%esp)
; CHECK-NEXT: calll my_emutls_get_address@PLT
; CHECK-NEXT: movl (%eax), %eax

65
test/CodeGen/X86/tls-android-negative.ll Normal file
View File

@ -0,0 +1,65 @@
; RUN: llc < %s -emulated-tls -march=x86 -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck %s
; Make sure that some symboles are not emitted in emulated TLS model.
@external_x = external thread_local global i32
@external_y = thread_local global i32 7
@internal_y = internal thread_local global i32 9
@internal_y0 = internal thread_local global i32 0
define i32* @get_external_x() {
entry:
ret i32* @external_x
}
define i32* @get_external_y() {
entry:
ret i32* @external_y
}
define i32* @get_internal_y() {
entry:
ret i32* @internal_y
}
define i32* @get_internal_y0() {
entry:
ret i32* @internal_y0
}
; no direct access to emulated TLS variables.
; no definition of emulated TLS variables.
; no initializer for external TLS variables, __emutls_t.external_x
; no initializer for 0-initialized TLS variables, __emutls_t.internal_y0
; not global linkage for __emutls_t.external_y
; CHECK-NOT: external_x@TLS
; CHECK-NOT: external_y@TLS
; CHECK-NOT: internal_y@TLS
; CHECK-NOT: .size external_x
; CHECK-NOT: .size external_y
; CHECK-NOT: .size internal_y
; CHECK-NOT: .size internal_y0
; CHECK-NOT: __emutls_v.external_x:
; CHECK-NOT: __emutls_t.external_x:
; CHECK-NOT: __emutls_t.internal_y0:
; CHECK-NOT: global __emutls_t.external_y
; CHECK-NOT: global __emutls_v.internal_y
; CHECK-NOT: global __emutls_v.internal_y0
; CHECK: __emutls_t.external_y
; CHECK-NOT: external_x@TLS
; CHECK-NOT: external_y@TLS
; CHECK-NOT: internal_y@TLS
; CHECK-NOT: .size external_x
; CHECK-NOT: .size external_y
; CHECK-NOT: .size internal_y
; CHECK-NOT: .size internal_y0
; CHECK-NOT: __emutls_v.external_x:
; CHECK-NOT: __emutls_t.external_x:
; CHECK-NOT: __emutls_t.internal_y0:
; CHECK-NOT: global __emutls_t.external_y
; CHECK-NOT: global __emutls_v.internal_y
; CHECK-NOT: global __emutls_v.internal_y0

89
test/CodeGen/X86/tls-android.ll Normal file
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@ -0,0 +1,89 @@
; RUN: llc < %s -emulated-tls -march=x86 -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck %s
; RUN: llc < %s -emulated-tls -march=x86-64 -mtriple=x86_64-linux-android -relocation-model=pic | FileCheck -check-prefix=X64 %s
; Make sure that TLS symboles are emitted in expected order.
@external_x = external thread_local global i32
@external_y = thread_local global i32 7
@internal_y = internal thread_local global i32 9
define i32* @get_external_x() {
entry:
ret i32* @external_x
}
define i32* @get_external_y() {
entry:
ret i32* @external_y
}
define i32* @get_internal_y() {
entry:
ret i32* @internal_y
}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 32-bit mode
; CHECK-LABEL: get_external_x:
; CHECK: __emutls_v.external_x
; CHECK: __emutls_get_address
; CHECK-LABEL: get_external_y:
; CHECK: __emutls_v.external_y
; CHECK: __emutls_get_address
; CHECK-LABEL: get_internal_y:
; CHECK: __emutls_v.internal_y
; CHECK: __emutls_get_address
; CHECK-NOT: __emutls_v.external_x:
; CHECK: .align 4
; CHECK-LABEL: __emutls_v.external_y:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long __emutls_t.external_y
; CHECK-LABEL: __emutls_t.external_y:
; CHECK-NEXT: .long 7
; CHECK: .align 4
; CHECK-LABEL: __emutls_v.internal_y:
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 4
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long __emutls_t.internal_y
; CHECK-LABEL: __emutls_t.internal_y:
; CHECK-NEXT: .long 9
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 64-bit mode
; X64-LABEL: get_external_x:
; X64: __emutls_v.external_x
; X64: __emutls_get_address
; X64-LABEL: get_external_y:
; X64: __emutls_v.external_y
; X64: __emutls_get_address
; X64-LABEL: get_internal_y:
; X64: __emutls_v.internal_y
; X64: __emutls_get_address
; X64-NOT: __emutls_v.external_x:
; X64: .align 8
; X64-LABEL: __emutls_v.external_y:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.external_y
; X64-LABEL: __emutls_t.external_y:
; X64-NEXT: .long 7
; X64: .align 8
; X64-LABEL: __emutls_v.internal_y:
; X64-NEXT: .quad 4
; X64-NEXT: .quad 4
; X64-NEXT: .quad 0
; X64-NEXT: .quad __emutls_t.internal_y
; X64-LABEL: __emutls_t.internal_y:
; X64-NEXT: .long 9

2
test/CodeGen/X86/tls-models.ll
View File

@ -18,6 +18,8 @@
@external_le = external thread_local(localexec) global i32
@internal_le = internal thread_local(localexec) global i32 42
; See test cases for emulated model in emutls.ll, emutls-pic.ll and emutls-pie.ll.
; ----- no model specified -----
define i32* @f1() {

10
test/DebugInfo/ARM/tls.ll
View File

@ -1,5 +1,8 @@
; RUN: llc -O0 -filetype=asm -mtriple=armv7-linux-gnuehabi < %s | FileCheck %s
;
; RUN: llc -O0 -filetype=asm -mtriple=armv7-linux-gnuehabi < %s \
; RUN: | FileCheck %s --check-prefix=CHECK
; RUN: llc -O0 -filetype=asm -mtriple=armv7-linux-gnuehabi -emulated-tls < %s \
; RUN: | FileCheck %s --check-prefix=EMU
; Generated with clang with source
; __thread int x;
@ -16,6 +19,9 @@
; The debug relocation of the address of the tls variable
; CHECK: .long x(tlsldo)
; TODO: Add expected output for -emulated-tls tests.
; EMU-NOT: .long x(tlsldo)
!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !2, globals: !3, imports: !2)
!1 = !DIFile(filename: "tls.c", directory: "/tmp")
!2 = !{}

22
test/DebugInfo/X86/tls.ll
View File

@ -1,20 +1,30 @@
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=x86_64-unknown-linux-gnu \
; RUN: | FileCheck --check-prefix=SINGLE --check-prefix=SINGLE-64 --check-prefix=GNUOP %s
; RUN: | FileCheck --check-prefix=NOEMU --check-prefix=SINGLE --check-prefix=SINGLE-64 --check-prefix=GNUOP %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=i386-linux-gnu \
; RUN: | FileCheck --check-prefix=SINGLE --check-prefix=SINGLE-32 --check-prefix=GNUOP %s
; RUN: | FileCheck --check-prefix=NOEMU --check-prefix=SINGLE --check-prefix=SINGLE-32 --check-prefix=GNUOP %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=x86_64-unknown-linux-gnu -split-dwarf=Enable \
; RUN: | FileCheck --check-prefix=FISSION --check-prefix=GNUOP %s
; RUN: | FileCheck --check-prefix=NOEMU --check-prefix=FISSION --check-prefix=GNUOP %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=x86_64-scei-ps4 \
; RUN: | FileCheck --check-prefix=SINGLE --check-prefix=SINGLE-64 --check-prefix=STDOP %s
; RUN: | FileCheck --check-prefix=NOEMU --check-prefix=SINGLE --check-prefix=SINGLE-64 --check-prefix=STDOP %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=x86_64-apple-darwin \
; RUN: | FileCheck --check-prefix=DARWIN --check-prefix=STDOP %s
; RUN: | FileCheck --check-prefix=NOEMU --check-prefix=DARWIN --check-prefix=STDOP %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=x86_64-unknown-freebsd \
; RUN: | FileCheck --check-prefix=SINGLE --check-prefix=SINGLE-64 --check-prefix=STDOP %s
; RUN: | FileCheck --check-prefix=NOEMU --check-prefix=SINGLE --check-prefix=SINGLE-64 --check-prefix=STDOP %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=x86_64-unknown-linux-gnu -emulated-tls \
; RUN: | FileCheck --check-prefix=SINGLE --check-prefix=EMUSINGLE-64 \
; RUN: --check-prefix=EMUGNUOP --check-prefix=EMU %s
; RUN: llc %s -o - -filetype=asm -O0 -mtriple=i386-linux-gnu -emulated-tls \
; RUN: | FileCheck --check-prefix=SINGLE --check-prefix=EMUSINGLE-32 \
; RUN: --check-prefix=EMUGNUOP --check-prefix=EMU %s
; TODO: Add expected output for -emulated-tls tests.
; FIXME: add relocation and DWARF expression support to llvm-dwarfdump & use
; that here instead of raw assembly printing

1
test/Transforms/GlobalOpt/tls.ll
View File

@ -1,4 +1,5 @@
; RUN: opt < %s -globalopt -S | FileCheck %s
; RUN: opt -emulated-tls < %s -globalopt -S | FileCheck %s
declare void @wait()
declare void @signal()