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Start using SwitchSection, allowing globals and functions to be emitted

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to specific sections.  Delete some dead functions copied from the X86 backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24449 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-11-21 07:26:04 +00:00
parent 7b6e53cde7
commit 4bfa3a3eb0
1 changed files with 7 additions and 39 deletions
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46
lib/Target/IA64/IA64AsmPrinter.cpp
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@ -46,33 +46,6 @@ namespace {
};
}
static bool isScale(const MachineOperand &MO) {
return MO.isImmediate() &&
(MO.getImmedValue() == 1 || MO.getImmedValue() == 2 ||
MO.getImmedValue() == 4 || MO.getImmedValue() == 8);
}
static bool isMem(const MachineInstr *MI, unsigned Op) {
if (MI->getOperand(Op).isFrameIndex()) return true;
if (MI->getOperand(Op).isConstantPoolIndex()) return true;
return Op+4 <= MI->getNumOperands() &&
MI->getOperand(Op ).isRegister() && isScale(MI->getOperand(Op+1)) &&
MI->getOperand(Op+2).isRegister() && (MI->getOperand(Op+3).isImmediate() ||
MI->getOperand(Op+3).isGlobalAddress());
}
// switchSection - Switch to the specified section of the executable if we are
// not already in it!
//
static void switchSection(std::ostream &OS, std::string &CurSection,
const char *NewSection) {
if (CurSection != NewSection) {
CurSection = NewSection;
if (!CurSection.empty())
OS << "\t" << NewSection << "\n";
}
}
/// printConstantPool - Print to the current output stream assembly
/// representations of the constants in the constant pool MCP. This is
/// used to print out constants which have been "spilled to memory" by
@ -84,8 +57,8 @@ void IA64SharedAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
if (CP.empty()) return;
O << "\n\t.section .data, \"aw\", \"progbits\"\n";
// FIXME: would be nice to have rodata (no 'w') when appropriate?
// FIXME: would be nice to have rodata (no 'w') when appropriate?
SwitchSection("\n\t.section .data, \"aw\", \"progbits\"\n", 0);
for (unsigned i = 0, e = CP.size(); i != e; ++i) {
emitAlignment(TD.getTypeAlignmentShift(CP[i]->getType()));
O << PrivateGlobalPrefix << "CPI" << CurrentFnName << "_" << i
@ -96,7 +69,6 @@ void IA64SharedAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
bool IA64SharedAsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData();
std::string CurSection;
// Print out module-level global variables here.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
@ -111,7 +83,7 @@ bool IA64SharedAsmPrinter::doFinalization(Module &M) {
if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) {
switchSection(O, CurSection, ".data");
SwitchSection(".data", I);
if (I->hasInternalLinkage()) {
O << "\t.lcomm " << name << "," << TD.getTypeSize(C->getType())
<< "," << (1 << Align);
@ -129,9 +101,9 @@ bool IA64SharedAsmPrinter::doFinalization(Module &M) {
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak
O << "\t.weak " << name << "\n";
switchSection(O, CurSection, "");
O << "\t.section\t.llvm.linkonce.d." << name
<< ", \"aw\", \"progbits\"\n";
SwitchSection("", I);
break;
case GlobalValue::AppendingLinkage:
// FIXME: appending linkage variables should go into a section of
@ -141,10 +113,7 @@ bool IA64SharedAsmPrinter::doFinalization(Module &M) {
O << "\t.global " << name << "\n";
// FALL THROUGH
case GlobalValue::InternalLinkage:
if (C->isNullValue())
switchSection(O, CurSection, ".bss");
else
switchSection(O, CurSection, ".data");
SwitchSection(C->isNullValue() ? ".bss" : ".data", I);
break;
case GlobalValue::GhostLinkage:
std::cerr << "GhostLinkage cannot appear in IA64AsmPrinter!\n";
@ -298,8 +267,8 @@ bool IA64AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
printConstantPool(MF.getConstantPool());
// Print out labels for the function.
O << "\n\t.section .text, \"ax\", \"progbits\"\n";
// ^^ means "Allocated instruXions in mem, initialized"
SwitchSection("\n\t.section .text, \"ax\", \"progbits\"\n", MF.getFunction());
// ^^ means "Allocated instruXions in mem, initialized"
emitAlignment(5);
O << "\t.global\t" << CurrentFnName << "\n";
O << "\t.type\t" << CurrentFnName << ", @function\n";
@ -413,7 +382,6 @@ void IA64AsmPrinter::printOp(const MachineOperand &MO,
/// MI to the current output stream.
///
void IA64AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
++EmittedInsts;
// Call the autogenerated instruction printer routines.