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MC'ize simple ARMConstantValue entry emission (with a FIXME).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118295 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-11-05 20:34:24 +00:00
parent f79856986d
commit 8da0a5785c
1 changed files with 37 additions and 28 deletions
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65
lib/Target/ARM/ARMAsmPrinter.cpp
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@ -228,38 +228,26 @@ namespace {
/// EmitMachineConstantPoolValue - Print a machine constantpool value to /// EmitMachineConstantPoolValue - Print a machine constantpool value to
/// the .s file. /// the .s file.
virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) { virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) {
SmallString<128> Str; int Size = TM.getTargetData()->getTypeAllocSize(MCPV->getType());
raw_svector_ostream OS(Str);
EmitMachineConstantPoolValue(MCPV, OS);
// FIXME: non-assembly streamer support.
OutStreamer.EmitRawText(OS.str());
}
void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV,
raw_ostream &O) {
switch (TM.getTargetData()->getTypeAllocSize(MCPV->getType())) {
case 1: O << MAI->getData8bitsDirective(0); break;
case 2: O << MAI->getData16bitsDirective(0); break;
case 4: O << MAI->getData32bitsDirective(0); break;
default: assert(0 && "Unknown CPV size");
}
ARMConstantPoolValue *ACPV = static_cast<ARMConstantPoolValue*>(MCPV); ARMConstantPoolValue *ACPV = static_cast<ARMConstantPoolValue*>(MCPV);
SmallString<128> Str;
raw_svector_ostream OS(Str);
if (ACPV->isLSDA()) { if (ACPV->isLSDA()) {
O << MAI->getPrivateGlobalPrefix() << "_LSDA_" << getFunctionNumber(); OS << MAI->getPrivateGlobalPrefix() << "_LSDA_" << getFunctionNumber();
} else if (ACPV->isBlockAddress()) { } else if (ACPV->isBlockAddress()) {
O << *GetBlockAddressSymbol(ACPV->getBlockAddress()); OS << *GetBlockAddressSymbol(ACPV->getBlockAddress());
} else if (ACPV->isGlobalValue()) { } else if (ACPV->isGlobalValue()) {
const GlobalValue *GV = ACPV->getGV(); const GlobalValue *GV = ACPV->getGV();
bool isIndirect = Subtarget->isTargetDarwin() && bool isIndirect = Subtarget->isTargetDarwin() &&
Subtarget->GVIsIndirectSymbol(GV, TM.getRelocationModel()); Subtarget->GVIsIndirectSymbol(GV, TM.getRelocationModel());
if (!isIndirect) if (!isIndirect)
O << *Mang->getSymbol(GV); OS << *Mang->getSymbol(GV);
else { else {
// FIXME: Remove this when Darwin transition to @GOT like syntax. // FIXME: Remove this when Darwin transition to @GOT like syntax.
MCSymbol *Sym = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr"); MCSymbol *Sym = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
O << *Sym; OS << *Sym;
MachineModuleInfoMachO &MMIMachO = MachineModuleInfoMachO &MMIMachO =
MMI->getObjFileInfo<MachineModuleInfoMachO>(); MMI->getObjFileInfo<MachineModuleInfoMachO>();
@ -272,17 +260,38 @@ namespace {
} }
} else { } else {
assert(ACPV->isExtSymbol() && "unrecognized constant pool value"); assert(ACPV->isExtSymbol() && "unrecognized constant pool value");
O << *GetExternalSymbolSymbol(ACPV->getSymbol()); OS << *GetExternalSymbolSymbol(ACPV->getSymbol());
} }
if (ACPV->hasModifier()) O << "(" << ACPV->getModifier() << ")"; // Create an MCSymbol for the reference.
if (ACPV->getPCAdjustment() != 0) { MCSymbol *MCSym = OutContext.GetOrCreateSymbol(OS.str());
O << "-(" << MAI->getPrivateGlobalPrefix() << "PC" const MCExpr *Expr = MCSymbolRefExpr::Create(MCSym, OutContext);
<< getFunctionNumber() << "_" << ACPV->getLabelId()
<< "+" << (unsigned)ACPV->getPCAdjustment(); // FIXME: Model the whole expression an an MCExpr and we can get rid
if (ACPV->mustAddCurrentAddress()) // of this hasRawTextSupport() clause and just do an EmitValue().
O << "-."; if (OutStreamer.hasRawTextSupport()) {
O << ')'; if (ACPV->hasModifier()) OS << "(" << ACPV->getModifier() << ")";
if (ACPV->getPCAdjustment() != 0) {
OS << "-(" << MAI->getPrivateGlobalPrefix() << "PC"
<< getFunctionNumber() << "_" << ACPV->getLabelId()
<< "+" << (unsigned)ACPV->getPCAdjustment();
if (ACPV->mustAddCurrentAddress())
OS << "-.";
OS << ')';
}
const char *DataDirective = 0;
switch (Size) {
case 1: DataDirective = MAI->getData8bitsDirective(0); break;
case 2: DataDirective = MAI->getData16bitsDirective(0); break;
case 4: DataDirective = MAI->getData32bitsDirective(0); break;
default: assert(0 && "Unknown CPV size");
}
Twine Text(DataDirective, OS.str());
OutStreamer.EmitRawText(Text);
} else {
assert(!ACPV->hasModifier() && ACPV->getPCAdjustment() == 0 &&
"ARM binary streamer of non-trivial constant pool value!");
OutStreamer.EmitValue(Expr, Size);
} }
} }
}; };