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For Darwin, put constant data into .const, .const_data, .literal{4|8|16}

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sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35017 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2007-03-08 01:25:25 +00:00
parent f0b5d56efd
commit 98ded765c2
4 changed files with 53 additions and 4 deletions
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23
lib/Target/ARM/ARMAsmPrinter.cpp
View File

@ -743,7 +743,8 @@ bool ARMAsmPrinter::doFinalization(Module &M) {
std::string name = Mang->getValueName(I); std::string name = Mang->getValueName(I);
Constant *C = I->getInitializer(); Constant *C = I->getInitializer();
unsigned Size = TD->getTypeSize(C->getType()); const Type *Type = C->getType();
unsigned Size = TD->getTypeSize(Type);
unsigned Align = TD->getPreferredAlignmentLog(I); unsigned Align = TD->getPreferredAlignmentLog(I);
if (I->hasHiddenVisibility()) if (I->hasHiddenVisibility())
@ -829,9 +830,29 @@ bool ARMAsmPrinter::doFinalization(Module &M) {
} else { } else {
if (C->isNullValue() && !NoZerosInBSS && TAI->getBSSSection()) if (C->isNullValue() && !NoZerosInBSS && TAI->getBSSSection())
SwitchToDataSection(TAI->getBSSSection(), I); SwitchToDataSection(TAI->getBSSSection(), I);
else if (!I->isConstant())
SwitchToDataSection(TAI->getDataSection(), I);
else {
// Read-only data.
bool isIntFPLiteral = Type->isInteger() || Type->isFloatingPoint();
if (C->ContainsRelocations() && Subtarget->isTargetDarwin() &&
TM.getRelocationModel() != Reloc::Static)
SwitchToDataSection("\t.const_data\n");
else if (isIntFPLiteral && Size == 4 &&
TAI->getFourByteConstantSection())
SwitchToDataSection(TAI->getFourByteConstantSection(), I);
else if (isIntFPLiteral && Size == 8 &&
TAI->getEightByteConstantSection())
SwitchToDataSection(TAI->getEightByteConstantSection(), I);
else if (isIntFPLiteral && Size == 16 &&
TAI->getSixteenByteConstantSection())
SwitchToDataSection(TAI->getSixteenByteConstantSection(), I);
else if (TAI->getReadOnlySection())
SwitchToDataSection(TAI->getReadOnlySection(), I);
else else
SwitchToDataSection(TAI->getDataSection(), I); SwitchToDataSection(TAI->getDataSection(), I);
} }
}
break; break;
} }

3
lib/Target/ARM/ARMTargetAsmInfo.cpp
View File

@ -27,6 +27,9 @@ ARMTargetAsmInfo::ARMTargetAsmInfo(const ARMTargetMachine &TM) {
HiddenDirective = "\t.private_extern\t"; HiddenDirective = "\t.private_extern\t";
JumpTableDataSection = ".const"; JumpTableDataSection = ".const";
CStringSection = "\t.cstring"; CStringSection = "\t.cstring";
FourByteConstantSection = "\t.literal4\n";
EightByteConstantSection = "\t.literal8\n";
ReadOnlySection = "\t.const\n";
HasDotTypeDotSizeDirective = false; HasDotTypeDotSizeDirective = false;
if (TM.getRelocationModel() == Reloc::Static) { if (TM.getRelocationModel() == Reloc::Static) {
StaticCtorsSection = ".constructor"; StaticCtorsSection = ".constructor";

26
lib/Target/PowerPC/PPCAsmPrinter.cpp
View File

@ -893,7 +893,8 @@ bool DarwinAsmPrinter::doFinalization(Module &M) {
O << Directive << name << "\n"; O << Directive << name << "\n";
Constant *C = I->getInitializer(); Constant *C = I->getInitializer();
unsigned Size = TD->getTypeSize(C->getType()); const Type *Type = C->getType();
unsigned Size = TD->getTypeSize(Type);
unsigned Align = TD->getPreferredAlignmentLog(I); unsigned Align = TD->getPreferredAlignmentLog(I);
if (C->isNullValue() && /* FIXME: Verify correct */ if (C->isNullValue() && /* FIXME: Verify correct */
@ -937,7 +938,28 @@ bool DarwinAsmPrinter::doFinalization(Module &M) {
} }
} }
SwitchToDataSection("\t.data", I); if (!I->isConstant())
SwitchToDataSection(TAI->getDataSection(), I);
else {
// Read-only data.
bool isIntFPLiteral = Type->isInteger() || Type->isFloatingPoint();
if (C->ContainsRelocations() &&
TM.getRelocationModel() != Reloc::Static)
SwitchToDataSection("\t.const_data\n");
else if (isIntFPLiteral && Size == 4 &&
TAI->getFourByteConstantSection())
SwitchToDataSection(TAI->getFourByteConstantSection(), I);
else if (isIntFPLiteral && Size == 8 &&
TAI->getEightByteConstantSection())
SwitchToDataSection(TAI->getEightByteConstantSection(), I);
else if (isIntFPLiteral && Size == 16 &&
TAI->getSixteenByteConstantSection())
SwitchToDataSection(TAI->getSixteenByteConstantSection(), I);
else if (TAI->getReadOnlySection())
SwitchToDataSection(TAI->getReadOnlySection(), I);
else
SwitchToDataSection(TAI->getDataSection(), I);
}
break; break;
default: default:
cerr << "Unknown linkage type!"; cerr << "Unknown linkage type!";

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

@ -57,6 +57,9 @@ DarwinTargetAsmInfo::DarwinTargetAsmInfo(const PPCTargetMachine &TM)
JumpTableDataSection = ".const"; JumpTableDataSection = ".const";
GlobalDirective = "\t.globl\t"; GlobalDirective = "\t.globl\t";
CStringSection = "\t.cstring"; CStringSection = "\t.cstring";
FourByteConstantSection = "\t.literal4\n";
EightByteConstantSection = "\t.literal8\n";
ReadOnlySection = "\t.const\n";
if (TM.getRelocationModel() == Reloc::Static) { if (TM.getRelocationModel() == Reloc::Static) {
StaticCtorsSection = ".constructor"; StaticCtorsSection = ".constructor";
StaticDtorsSection = ".destructor"; StaticDtorsSection = ".destructor";