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mcize jump table symbol manipulation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94441 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-01-25 19:51:38 +00:00
parent bfcb09688c
commit 0890cf124f
1 changed files with 38 additions and 33 deletions
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71
lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
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@ -167,8 +167,9 @@ namespace {
void EmitStartOfAsmFile(Module &M); void EmitStartOfAsmFile(Module &M);
void EmitEndOfAsmFile(Module &M); void EmitEndOfAsmFile(Module &M);
virtual void printPICJumpTableSetLabel2(unsigned uid, unsigned uid2, MCSymbol *GetARMSetPICJumpTableLabel2(unsigned uid, unsigned uid2,
const MachineBasicBlock *MBB) const; const MachineBasicBlock *MBB) const;
MCSymbol *GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const;
/// EmitMachineConstantPoolValue - Print a machine constantpool value to /// EmitMachineConstantPoolValue - Print a machine constantpool value to
/// the .s file. /// the .s file.
@ -907,17 +908,22 @@ void ARMAsmPrinter::printCPInstOperand(const MachineInstr *MI, int OpNum,
} }
} }
void ARMAsmPrinter::printPICJumpTableSetLabel2(unsigned uid, unsigned uid2, MCSymbol *ARMAsmPrinter::
const MachineBasicBlock *MBB) const { GetARMSetPICJumpTableLabel2(unsigned uid, unsigned uid2,
if (!MAI->getSetDirective()) const MachineBasicBlock *MBB) const {
return; SmallString<60> Name;
raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix()
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
<< getFunctionNumber() << '_' << uid << '_' << uid2 << getFunctionNumber() << '_' << uid << '_' << uid2
<< "_set_" << MBB->getNumber() << ',' << "_set_" << MBB->getNumber();
<< *GetMBBSymbol(MBB->getNumber()) return OutContext.GetOrCreateSymbol(Name.str());
<< '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() }
<< '_' << uid << '_' << uid2 << '\n';
MCSymbol *ARMAsmPrinter::
GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const {
SmallString<60> Name;
raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI"
<< getFunctionNumber() << '_' << uid << '_' << uid2 << '\n';
return OutContext.GetOrCreateSymbol(Name.str());
} }
void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) { void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) {
@ -927,8 +933,8 @@ void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) {
const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id
unsigned JTI = MO1.getIndex(); unsigned JTI = MO1.getIndex();
O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm());
<< '_' << JTI << '_' << MO2.getImm() << ":\n"; OutStreamer.EmitLabel(JTISymbol);
const char *JTEntryDirective = MAI->getData32bitsDirective(); const char *JTEntryDirective = MAI->getData32bitsDirective();
@ -942,21 +948,20 @@ void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) {
MachineBasicBlock *MBB = JTBBs[i]; MachineBasicBlock *MBB = JTBBs[i];
bool isNew = JTSets.insert(MBB); bool isNew = JTSets.insert(MBB);
if (UseSet && isNew) if (UseSet && isNew) {
printPICJumpTableSetLabel2(JTI, MO2.getImm(), MBB); O << MAI->getSetDirective() << ' '
<< *GetARMSetPICJumpTableLabel2(JTI, MO2.getImm(), MBB) << '-'
<< *JTISymbol << '\n';
}
O << JTEntryDirective << ' '; O << JTEntryDirective << ' ';
if (UseSet) if (UseSet)
O << MAI->getPrivateGlobalPrefix() << getFunctionNumber() O << *GetARMSetPICJumpTableLabel2(JTI, MO2.getImm(), MBB);
<< '_' << JTI << '_' << MO2.getImm() else if (TM.getRelocationModel() == Reloc::PIC_)
<< "_set_" << MBB->getNumber(); O << *GetMBBSymbol(MBB->getNumber()) << '-' << *JTISymbol;
else if (TM.getRelocationModel() == Reloc::PIC_) { else
O << *GetMBBSymbol(MBB->getNumber())
<< '-' << MAI->getPrivateGlobalPrefix() << "JTI"
<< getFunctionNumber() << '_' << JTI << '_' << MO2.getImm();
} else {
O << *GetMBBSymbol(MBB->getNumber()); O << *GetMBBSymbol(MBB->getNumber());
}
if (i != e-1) if (i != e-1)
O << '\n'; O << '\n';
} }
@ -966,8 +971,9 @@ void ARMAsmPrinter::printJT2BlockOperand(const MachineInstr *MI, int OpNum) {
const MachineOperand &MO1 = MI->getOperand(OpNum); const MachineOperand &MO1 = MI->getOperand(OpNum);
const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id
unsigned JTI = MO1.getIndex(); unsigned JTI = MO1.getIndex();
O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << JTI << '_' << MO2.getImm() << ":\n"; MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm());
OutStreamer.EmitLabel(JTISymbol);
const MachineFunction *MF = MI->getParent()->getParent(); const MachineFunction *MF = MI->getParent()->getParent();
const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo(); const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
@ -985,13 +991,12 @@ void ARMAsmPrinter::printJT2BlockOperand(const MachineInstr *MI, int OpNum) {
O << MAI->getData8bitsDirective(); O << MAI->getData8bitsDirective();
else if (HalfWordOffset) else if (HalfWordOffset)
O << MAI->getData16bitsDirective(); O << MAI->getData16bitsDirective();
if (ByteOffset || HalfWordOffset) {
O << '(' << *GetMBBSymbol(MBB->getNumber()); if (ByteOffset || HalfWordOffset)
O << "-" << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() O << '(' << *GetMBBSymbol(MBB->getNumber()) << "-" << *JTISymbol << ")/2";
<< '_' << JTI << '_' << MO2.getImm() << ")/2"; else
} else {
O << "\tb.w " << *GetMBBSymbol(MBB->getNumber()); O << "\tb.w " << *GetMBBSymbol(MBB->getNumber());
}
if (i != e-1) if (i != e-1)
O << '\n'; O << '\n';
} }