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-rw-r--r--include/llvm/GlobalValue.h4
-rw-r--r--lib/AsmParser/LLLexer.cpp1
-rw-r--r--lib/Bitcode/Reader/BitcodeReader.cpp1
-rw-r--r--lib/Bitcode/Writer/BitcodeWriter.cpp1
-rw-r--r--lib/CodeGen/ELFWriter.cpp5
-rw-r--r--lib/CodeGen/MachOWriter.cpp4
-rw-r--r--lib/ExecutionEngine/ExecutionEngine.cpp2
-rw-r--r--lib/Linker/LinkModules.cpp28
-rw-r--r--lib/Target/Alpha/AlphaAsmPrinter.cpp1
-rw-r--r--lib/Target/CBackend/CBackend.cpp8
-rw-r--r--lib/Target/CellSPU/SPUAsmPrinter.cpp5
-rw-r--r--lib/Target/CppBackend/CPPBackend.cpp2
-rw-r--r--lib/Target/IA64/IA64AsmPrinter.cpp2
-rw-r--r--lib/Target/Mips/MipsAsmPrinter.cpp6
-rw-r--r--lib/Target/PIC16/PIC16AsmPrinter.cpp2
-rw-r--r--lib/Target/PowerPC/PPCAsmPrinter.cpp14
-rw-r--r--lib/Target/Sparc/SparcAsmPrinter.cpp5
-rw-r--r--lib/Target/X86/X86ATTAsmPrinter.cpp3
-rw-r--r--lib/Target/X86/X86AsmPrinter.cpp3
-rw-r--r--lib/Target/X86/X86IntelAsmPrinter.cpp1
-rw-r--r--lib/Target/X86/X86Subtarget.cpp1
-rw-r--r--lib/VMCore/AsmWriter.cpp2
22 files changed, 70 insertions, 31 deletions
diff --git a/include/llvm/GlobalValue.h b/include/llvm/GlobalValue.h
index 808471d..60b2d1c 100644
--- a/include/llvm/GlobalValue.h
+++ b/include/llvm/GlobalValue.h
@@ -38,7 +38,8 @@ public:
DLLImportLinkage, ///< Function to be imported from DLL
DLLExportLinkage, ///< Function to be accessible from DLL
ExternalWeakLinkage,///< ExternalWeak linkage description
- GhostLinkage ///< Stand-in functions for streaming fns from BC files
+ GhostLinkage, ///< Stand-in functions for streaming fns from BC files
+ CommonLinkage ///< Tentative definitions
};
/// @brief An enumeration for the kinds of visibility of global values.
@@ -100,6 +101,7 @@ public:
bool hasExternalLinkage() const { return Linkage == ExternalLinkage; }
bool hasLinkOnceLinkage() const { return Linkage == LinkOnceLinkage; }
bool hasWeakLinkage() const { return Linkage == WeakLinkage; }
+ bool hasCommonLinkage() const { return Linkage == CommonLinkage; }
bool hasAppendingLinkage() const { return Linkage == AppendingLinkage; }
bool hasInternalLinkage() const { return Linkage == InternalLinkage; }
bool hasDLLImportLinkage() const { return Linkage == DLLImportLinkage; }
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index 6787ba1..37032eb 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -451,6 +451,7 @@ int LLLexer::LexIdentifier() {
KEYWORD("appending", APPENDING);
KEYWORD("dllimport", DLLIMPORT);
KEYWORD("dllexport", DLLEXPORT);
+ KEYWORD("common", COMMON);
KEYWORD("hidden", HIDDEN);
KEYWORD("protected", PROTECTED);
KEYWORD("extern_weak", EXTERN_WEAK);
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 4098266..2d421b4 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -66,6 +66,7 @@ static GlobalValue::LinkageTypes GetDecodedLinkage(unsigned Val) {
case 5: return GlobalValue::DLLImportLinkage;
case 6: return GlobalValue::DLLExportLinkage;
case 7: return GlobalValue::ExternalWeakLinkage;
+ case 8: return GlobalValue::CommonLinkage;
}
}
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 40e7011..8e9a395 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -270,6 +270,7 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) {
case GlobalValue::DLLImportLinkage: return 5;
case GlobalValue::DLLExportLinkage: return 6;
case GlobalValue::ExternalWeakLinkage: return 7;
+ case GlobalValue::CommonLinkage: return 8;
}
}
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index 63fee3a..27f23f4 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -282,7 +282,8 @@ void ELFWriter::EmitGlobal(GlobalVariable *GV) {
// If this global is part of the common block, add it now. Variables are
// part of the common block if they are zero initialized and allowed to be
// merged with other symbols.
- if (GV->hasLinkOnceLinkage() || GV->hasWeakLinkage()) {
+ if (GV->hasLinkOnceLinkage() || GV->hasWeakLinkage() ||
+ GV->hasCommonLinkage()) {
ELFSym CommonSym(GV);
// Value for common symbols is the alignment required.
CommonSym.Value = Align;
@@ -313,7 +314,7 @@ void ELFWriter::EmitGlobal(GlobalVariable *GV) {
BSSSym.SetType(ELFSym::STT_OBJECT);
switch (GV->getLinkage()) {
- default: // weak/linkonce handled above
+ default: // weak/linkonce/common handled above
assert(0 && "Unexpected linkage type!");
case GlobalValue::AppendingLinkage: // FIXME: This should be improved!
case GlobalValue::ExternalLinkage:
diff --git a/lib/CodeGen/MachOWriter.cpp b/lib/CodeGen/MachOWriter.cpp
index 2726f70..c2b42ec 100644
--- a/lib/CodeGen/MachOWriter.cpp
+++ b/lib/CodeGen/MachOWriter.cpp
@@ -403,7 +403,8 @@ void MachOWriter::EmitGlobal(GlobalVariable *GV) {
// If this global is part of the common block, add it now. Variables are
// part of the common block if they are zero initialized and allowed to be
// merged with other symbols.
- if (NoInit || GV->hasLinkOnceLinkage() || GV->hasWeakLinkage()) {
+ if (NoInit || GV->hasLinkOnceLinkage() || GV->hasWeakLinkage() ||
+ GV->hasCommonLinkage()) {
MachOSym ExtOrCommonSym(GV, Mang->getValueName(GV), MachOSym::NO_SECT,TM);
// For undefined (N_UNDF) external (N_EXT) types, n_value is the size in
// bytes of the symbol.
@@ -951,6 +952,7 @@ MachOSym::MachOSym(const GlobalValue *gv, std::string name, uint8_t sect,
break;
case GlobalValue::WeakLinkage:
case GlobalValue::LinkOnceLinkage:
+ case GlobalValue::CommonLinkage:
assert(!isa<Function>(gv) && "Unexpected linkage type for Function!");
case GlobalValue::ExternalLinkage:
GVName = TAI->getGlobalPrefix() + name;
diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index a56951d..8bd3b11 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -884,7 +884,7 @@ void ExecutionEngine::emitGlobals() {
continue;
// Otherwise, we know it's linkonce/weak, replace it if this is a strong
- // symbol.
+ // symbol. FIXME is this right for common?
if (GV->hasExternalLinkage() || GVEntry->hasExternalWeakLinkage())
GVEntry = GV;
}
diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index 3db5b09..cf4ceaa 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -410,10 +410,12 @@ static bool GetLinkageResult(GlobalValue *Dest, const GlobalValue *Src,
"': can only link appending global with another appending global!");
LinkFromSrc = true; // Special cased.
LT = Src->getLinkage();
- } else if (Src->hasWeakLinkage() || Src->hasLinkOnceLinkage()) {
- // At this point we know that Dest has LinkOnce, External*, Weak, or
- // DLL* linkage.
- if ((Dest->hasLinkOnceLinkage() && Src->hasWeakLinkage()) ||
+ } else if (Src->hasWeakLinkage() || Src->hasLinkOnceLinkage() ||
+ Src->hasCommonLinkage()) {
+ // At this point we know that Dest has LinkOnce, External*, Weak, Common,
+ // or DLL* linkage.
+ if ((Dest->hasLinkOnceLinkage() &&
+ (Src->hasWeakLinkage() || Src->hasCommonLinkage())) ||
Dest->hasExternalWeakLinkage()) {
LinkFromSrc = true;
LT = Src->getLinkage();
@@ -421,7 +423,8 @@ static bool GetLinkageResult(GlobalValue *Dest, const GlobalValue *Src,
LinkFromSrc = false;
LT = Dest->getLinkage();
}
- } else if (Dest->hasWeakLinkage() || Dest->hasLinkOnceLinkage()) {
+ } else if (Dest->hasWeakLinkage() || Dest->hasLinkOnceLinkage() ||
+ Dest->hasCommonLinkage()) {
// At this point we know that Src has External* or DLL* linkage.
if (Src->hasExternalWeakLinkage()) {
LinkFromSrc = false;
@@ -792,10 +795,12 @@ static bool LinkGlobalInits(Module *Dest, const Module *Src,
if (DGV->getInitializer() != SInit)
return Error(Err, "Global Variable Collision on '" + SGV->getName() +
"': global variables have different initializers");
- } else if (DGV->hasLinkOnceLinkage() || DGV->hasWeakLinkage()) {
+ } else if (DGV->hasLinkOnceLinkage() || DGV->hasWeakLinkage() ||
+ DGV->hasCommonLinkage()) {
// Nothing is required, mapped values will take the new global
// automatically.
- } else if (SGV->hasLinkOnceLinkage() || SGV->hasWeakLinkage()) {
+ } else if (SGV->hasLinkOnceLinkage() || SGV->hasWeakLinkage() ||
+ SGV->hasCommonLinkage()) {
// Nothing is required, mapped values will take the new global
// automatically.
} else if (DGV->hasAppendingLinkage()) {
@@ -916,16 +921,19 @@ static bool LinkFunctionProtos(Module *Dest, const Module *Src,
DF->setLinkage(SF->getLinkage());
// Visibility of prototype is overridden by vis of definition.
DF->setVisibility(SF->getVisibility());
- } else if (SF->hasWeakLinkage() || SF->hasLinkOnceLinkage()) {
+ } else if (SF->hasWeakLinkage() || SF->hasLinkOnceLinkage() ||
+ SF->hasCommonLinkage()) {
// At this point we know that DF has LinkOnce, Weak, or External* linkage.
ValueMap[SF] = DF;
// Linkonce+Weak = Weak
// *+External Weak = *
- if ((DF->hasLinkOnceLinkage() && SF->hasWeakLinkage()) ||
+ if ((DF->hasLinkOnceLinkage() &&
+ (SF->hasWeakLinkage() || SF->hasCommonLinkage())) ||
DF->hasExternalWeakLinkage())
DF->setLinkage(SF->getLinkage());
- } else if (DF->hasWeakLinkage() || DF->hasLinkOnceLinkage()) {
+ } else if (DF->hasWeakLinkage() || DF->hasLinkOnceLinkage() ||
+ DF->hasCommonLinkage()) {
// At this point we know that SF has LinkOnce or External* linkage.
ValueMap[SF] = DF;
if (!SF->hasLinkOnceLinkage() && !SF->hasExternalWeakLinkage())
diff --git a/lib/Target/Alpha/AlphaAsmPrinter.cpp b/lib/Target/Alpha/AlphaAsmPrinter.cpp
index 42e4b78..2c28971 100644
--- a/lib/Target/Alpha/AlphaAsmPrinter.cpp
+++ b/lib/Target/Alpha/AlphaAsmPrinter.cpp
@@ -225,6 +225,7 @@ bool AlphaAsmPrinter::doFinalization(Module &M) {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
+ case GlobalValue::CommonLinkage:
O << TAI->getWeakRefDirective() << name << '\n';
break;
case GlobalValue::AppendingLinkage:
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index dcc920a..f52322b 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1604,7 +1604,8 @@ bool CWriter::doInitialization(Module &M) {
for (Module::global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I) {
- if (I->hasExternalLinkage() || I->hasExternalWeakLinkage())
+ if (I->hasExternalLinkage() || I->hasExternalWeakLinkage() ||
+ I->hasCommonLinkage())
Out << "extern ";
else if (I->hasDLLImportLinkage())
Out << "__declspec(dllimport) ";
@@ -1678,6 +1679,8 @@ bool CWriter::doInitialization(Module &M) {
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
+ else if (I->hasCommonLinkage()) // FIXME is this right?
+ Out << " __ATTRIBUTE_WEAK__";
else if (I->hasWeakLinkage())
Out << " __ATTRIBUTE_WEAK__";
else if (I->hasExternalWeakLinkage())
@@ -1715,6 +1718,8 @@ bool CWriter::doInitialization(Module &M) {
Out << " __attribute__((common))";
else if (I->hasWeakLinkage())
Out << " __ATTRIBUTE_WEAK__";
+ else if (I->hasCommonLinkage())
+ Out << " __ATTRIBUTE_WEAK__";
if (I->hasHiddenVisibility())
Out << " __HIDDEN__";
@@ -1724,6 +1729,7 @@ bool CWriter::doInitialization(Module &M) {
// this, however, occurs when the variable has weak linkage. In this
// case, the assembler will complain about the variable being both weak
// and common, so we disable this optimization.
+ // FIXME common linkage should avoid this problem.
if (!I->getInitializer()->isNullValue()) {
Out << " = " ;
writeOperand(I->getInitializer());
diff --git a/lib/Target/CellSPU/SPUAsmPrinter.cpp b/lib/Target/CellSPU/SPUAsmPrinter.cpp
index f627896..4e4324b 100644
--- a/lib/Target/CellSPU/SPUAsmPrinter.cpp
+++ b/lib/Target/CellSPU/SPUAsmPrinter.cpp
@@ -340,7 +340,7 @@ void SPUAsmPrinter::printOp(const MachineOperand &MO) {
// stubs
if (TM.getRelocationModel() != Reloc::Static) {
if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage()))) {
+ GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
GVStubs.insert(Name);
O << "L" << Name << "$non_lazy_ptr";
return;
@@ -510,7 +510,7 @@ bool LinuxAsmPrinter::doFinalization(Module &M) {
if (C->isNullValue() && /* FIXME: Verify correct */
(I->hasInternalLinkage() || I->hasWeakLinkage() ||
- I->hasLinkOnceLinkage() ||
+ I->hasLinkOnceLinkage() || I->hasCommonLinkage() ||
(I->hasExternalLinkage() && !I->hasSection()))) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (I->hasExternalLinkage()) {
@@ -537,6 +537,7 @@ bool LinuxAsmPrinter::doFinalization(Module &M) {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
+ case GlobalValue::CommonLinkage:
O << "\t.global " << name << '\n'
<< "\t.weak_definition " << name << '\n';
SwitchToDataSection(".section __DATA,__datacoal_nt,coalesced", I);
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index 8724073..dc9a11e 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -301,6 +301,8 @@ namespace {
Out << "GlobalValue::ExternalWeakLinkage"; break;
case GlobalValue::GhostLinkage:
Out << "GlobalValue::GhostLinkage"; break;
+ case GlobalValue::CommonLinkage:
+ Out << "GlobalValue::CommonLinkage"; break;
}
}
diff --git a/lib/Target/IA64/IA64AsmPrinter.cpp b/lib/Target/IA64/IA64AsmPrinter.cpp
index 829730d..037687c 100644
--- a/lib/Target/IA64/IA64AsmPrinter.cpp
+++ b/lib/Target/IA64/IA64AsmPrinter.cpp
@@ -275,6 +275,7 @@ bool IA64AsmPrinter::doFinalization(Module &M) {
if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
+ I->hasCommonLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchToDataSection(".data", I);
if (I->hasInternalLinkage()) {
@@ -289,6 +290,7 @@ bool IA64AsmPrinter::doFinalization(Module &M) {
} else {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
+ case GlobalValue::CommonLinkage:
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
diff --git a/lib/Target/Mips/MipsAsmPrinter.cpp b/lib/Target/Mips/MipsAsmPrinter.cpp
index 6c0c908..6ae6104 100644
--- a/lib/Target/Mips/MipsAsmPrinter.cpp
+++ b/lib/Target/Mips/MipsAsmPrinter.cpp
@@ -461,7 +461,8 @@ doFinalization(Module &M)
// Is this correct ?
if (C->isNullValue() && (I->hasLinkOnceLinkage() ||
- I->hasInternalLinkage() || I->hasWeakLinkage()))
+ I->hasInternalLinkage() || I->hasWeakLinkage() ||
+ I->hasCommonLinkage()))
{
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
@@ -487,7 +488,8 @@ doFinalization(Module &M)
switch (I->getLinkage())
{
case GlobalValue::LinkOnceLinkage:
- case GlobalValue::WeakLinkage:
+ case GlobalValue::CommonLinkage:
+ case GlobalValue::WeakLinkage:
// FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
diff --git a/lib/Target/PIC16/PIC16AsmPrinter.cpp b/lib/Target/PIC16/PIC16AsmPrinter.cpp
index f211fac..15711b5 100644
--- a/lib/Target/PIC16/PIC16AsmPrinter.cpp
+++ b/lib/Target/PIC16/PIC16AsmPrinter.cpp
@@ -414,7 +414,7 @@ bool PIC16AsmPrinter::doFinalization(Module &M)
if (!I->hasSection() &&
(I->hasInternalLinkage() || I->hasWeakLinkage() ||
- I->hasLinkOnceLinkage())) {
+ I->hasLinkOnceLinkage() || I->hasCommonLinkage())) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (!NoZerosInBSS && TAI->getBSSSection())
SwitchToDataSection(M.getModuleIdentifier().c_str(), I);
diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 4cc9d2a..96e1ae8 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -185,7 +185,7 @@ namespace {
if (MO.getType() == MachineOperand::MO_GlobalAddress) {
GlobalValue *GV = MO.getGlobal();
if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage()))) {
+ GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
// Dynamically-resolved functions need a stub for the function.
std::string Name = Mang->getValueName(GV);
FnStubs.insert(Name);
@@ -390,7 +390,7 @@ void PPCAsmPrinter::printOp(const MachineOperand &MO) {
// External or weakly linked global variables need non-lazily-resolved stubs
if (TM.getRelocationModel() != Reloc::Static) {
if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage()))) {
+ GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
GVStubs.insert(Name);
O << "L" << Name << "$non_lazy_ptr";
return;
@@ -671,8 +671,8 @@ bool LinuxAsmPrinter::doFinalization(Module &M) {
unsigned Align = TD->getPreferredAlignmentLog(I);
if (C->isNullValue() && /* FIXME: Verify correct */
- !I->hasSection() &&
- (I->hasInternalLinkage() || I->hasWeakLinkage() ||
+ !I->hasSection() && (I->hasCommonLinkage() ||
+ I->hasInternalLinkage() || I->hasWeakLinkage() ||
I->hasLinkOnceLinkage() || I->hasExternalLinkage())) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (I->hasExternalLinkage()) {
@@ -696,6 +696,7 @@ bool LinuxAsmPrinter::doFinalization(Module &M) {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
+ case GlobalValue::CommonLinkage:
O << "\t.global " << name << '\n'
<< "\t.type " << name << ", @object\n"
<< "\t.weak " << name << '\n';
@@ -936,8 +937,8 @@ bool DarwinAsmPrinter::doFinalization(Module &M) {
unsigned Align = TD->getPreferredAlignmentLog(I);
if (C->isNullValue() && /* FIXME: Verify correct */
- !I->hasSection() &&
- (I->hasInternalLinkage() || I->hasWeakLinkage() ||
+ !I->hasSection() && (I->hasCommonLinkage() ||
+ I->hasInternalLinkage() || I->hasWeakLinkage() ||
I->hasLinkOnceLinkage() || I->hasExternalLinkage())) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (I->hasExternalLinkage()) {
@@ -961,6 +962,7 @@ bool DarwinAsmPrinter::doFinalization(Module &M) {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
+ case GlobalValue::CommonLinkage:
O << "\t.globl " << name << '\n'
<< "\t.weak_definition " << name << '\n';
SwitchToDataSection("\t.section __DATA,__datacoal_nt,coalesced", I);
diff --git a/lib/Target/Sparc/SparcAsmPrinter.cpp b/lib/Target/Sparc/SparcAsmPrinter.cpp
index 01bd092..2011ab9 100644
--- a/lib/Target/Sparc/SparcAsmPrinter.cpp
+++ b/lib/Target/Sparc/SparcAsmPrinter.cpp
@@ -231,8 +231,8 @@ bool SparcAsmPrinter::doFinalization(Module &M) {
unsigned Size = TD->getABITypeSize(C->getType());
unsigned Align = TD->getPreferredAlignment(I);
- if (C->isNullValue() &&
- (I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
+ if (C->isNullValue() && (I->hasCommonLinkage() ||
+ I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchToDataSection(".data", I);
if (I->hasInternalLinkage())
@@ -243,6 +243,7 @@ bool SparcAsmPrinter::doFinalization(Module &M) {
O << "\n";
} else {
switch (I->getLinkage()) {
+ case GlobalValue::CommonLinkage:
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
diff --git a/lib/Target/X86/X86ATTAsmPrinter.cpp b/lib/Target/X86/X86ATTAsmPrinter.cpp
index 6909da1..4659deb 100644
--- a/lib/Target/X86/X86ATTAsmPrinter.cpp
+++ b/lib/Target/X86/X86ATTAsmPrinter.cpp
@@ -309,7 +309,8 @@ void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
// non-lazily-resolved stubs
if (GV->isDeclaration() ||
GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage()) {
+ GV->hasLinkOnceLinkage() ||
+ GV->hasCommonLinkage()) {
// Dynamically-resolved functions need a stub for the function.
if (isCallOp && isa<Function>(GV)) {
FnStubs.insert(Name);
diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index e1bc65f..3898a9e 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -200,7 +200,7 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
if (!I->isThreadLocal() &&
(I->hasInternalLinkage() || I->hasWeakLinkage() ||
- I->hasLinkOnceLinkage())) {
+ I->hasLinkOnceLinkage() || I->hasCommonLinkage())) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (!NoZerosInBSS && TAI->getBSSSection())
SwitchToDataSection(TAI->getBSSSection(), I);
@@ -235,6 +235,7 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
}
switch (I->getLinkage()) {
+ case GlobalValue::CommonLinkage:
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
if (Subtarget->isTargetDarwin()) {
diff --git a/lib/Target/X86/X86IntelAsmPrinter.cpp b/lib/Target/X86/X86IntelAsmPrinter.cpp
index ddd90cd..a1031bd 100644
--- a/lib/Target/X86/X86IntelAsmPrinter.cpp
+++ b/lib/Target/X86/X86IntelAsmPrinter.cpp
@@ -373,6 +373,7 @@ bool X86IntelAsmPrinter::doFinalization(Module &M) {
bool bCustomSegment = false;
switch (I->getLinkage()) {
+ case GlobalValue::CommonLinkage:
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
SwitchToDataSection("");
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 98d80c8..23ceb9b 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -41,6 +41,7 @@ bool X86Subtarget::GVRequiresExtraLoad(const GlobalValue* GV,
if (isTargetDarwin()) {
return (!isDirectCall &&
(GV->hasWeakLinkage() || GV->hasLinkOnceLinkage() ||
+ GV->hasCommonLinkage() ||
(GV->isDeclaration() && !GV->hasNotBeenReadFromBitcode())));
} else if (isTargetELF()) {
// Extra load is needed for all non-statics.
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 06bfc50..3d39553 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -930,6 +930,7 @@ void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
} else {
switch (GV->getLinkage()) {
case GlobalValue::InternalLinkage: Out << "internal "; break;
+ case GlobalValue::CommonLinkage: Out << "common "; break;
case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
case GlobalValue::WeakLinkage: Out << "weak "; break;
case GlobalValue::AppendingLinkage: Out << "appending "; break;
@@ -1049,6 +1050,7 @@ void AssemblyWriter::printFunction(const Function *F) {
case GlobalValue::InternalLinkage: Out << "internal "; break;
case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
case GlobalValue::WeakLinkage: Out << "weak "; break;
+ case GlobalValue::CommonLinkage: Out << "common "; break;
case GlobalValue::AppendingLinkage: Out << "appending "; break;
case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
generated by cgit v1.1 at 2025-05-29 11:10:20 +0000