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https://github.com/c64scene-ar/llvm-6502.git
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Support MachineBasicBlock operands on RawFrm instructions.
Get rid of separate numbering for LLVM BasicBlocks; use the automatically generated MachineBasicBlock numbering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13567 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke
parent
9f088e481c
commit
3fb5d1a6cc
@ -87,13 +87,6 @@ namespace {
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Printer(std::ostream &o, TargetMachine &tm) : O(o), TM(tm) { }
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/// We name each basic block in a Function with a unique number, so
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/// that we can consistently refer to them later. This is cleared
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/// at the beginning of each call to runOnMachineFunction().
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///
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typedef std::map<const Value *, unsigned> ValueMapTy;
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ValueMapTy NumberForBB;
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/// Cache of mangled name for current function. This is
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/// recalculated at the beginning of each call to
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/// runOnMachineFunction().
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@ -366,10 +359,6 @@ void Printer::printConstantPool(MachineConstantPool *MCP) {
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/// method to print assembly for each instruction.
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///
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bool Printer::runOnMachineFunction(MachineFunction &MF) {
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// BBNumber is used here so that a given Printer will never give two
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// BBs the same name. (If you have a better way, please let me know!)
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static unsigned BBNumber = 0;
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O << "\n\n";
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// What's my mangled name?
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CurrentFnName = Mang->getValueName(MF.getFunction());
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@ -385,19 +374,11 @@ bool Printer::runOnMachineFunction(MachineFunction &MF) {
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O << "\t.type\t" << CurrentFnName << ", @function\n";
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O << CurrentFnName << ":\n";
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// Number each basic block so that we can consistently refer to them
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// in PC-relative references.
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NumberForBB.clear();
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for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
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I != E; ++I) {
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NumberForBB[I->getBasicBlock()] = BBNumber++;
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}
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// Print out code for the function.
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for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
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I != E; ++I) {
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// Print a label for the basic block.
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O << ".LBB" << NumberForBB[I->getBasicBlock()] << ":\t# "
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O << ".LBB" << CurrentFnName << "_" << I->getNumber() << ":\t# "
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<< I->getBasicBlock()->getName() << "\n";
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for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
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II != E; ++II) {
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@ -449,13 +430,17 @@ void Printer::printOp(const MachineOperand &MO,
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case MachineOperand::MO_UnextendedImmed:
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O << (int)MO.getImmedValue();
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return;
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case MachineOperand::MO_PCRelativeDisp: {
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ValueMapTy::const_iterator i = NumberForBB.find(MO.getVRegValue());
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assert (i != NumberForBB.end()
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&& "Could not find a BB in the NumberForBB map!");
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O << ".LBB" << i->second << " # PC rel: " << MO.getVRegValue()->getName();
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case MachineOperand::MO_MachineBasicBlock: {
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MachineBasicBlock *MBBOp = MO.getMachineBasicBlock();
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O << ".LBB" << Mang->getValueName(MBBOp->getParent()->getFunction())
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<< "_" << MBBOp->getNumber () << "\t# "
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<< MBBOp->getBasicBlock ()->getName ();
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return;
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}
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case MachineOperand::MO_PCRelativeDisp:
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std::cerr << "Shouldn't use addPCDisp() when building X86 MachineInstrs";
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abort ();
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return;
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case MachineOperand::MO_GlobalAddress:
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if (!elideOffsetKeyword)
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O << "OFFSET ";
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@ -682,13 +667,13 @@ void Printer::printMachineInstruction(const MachineInstr *MI) {
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{
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// The accepted forms of Raw instructions are:
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// 1. nop - No operand required
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// 2. jmp foo - PC relative displacement operand
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// 2. jmp foo - MachineBasicBlock operand
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// 3. call bar - GlobalAddress Operand or External Symbol Operand
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// 4. in AL, imm - Immediate operand
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//
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assert(MI->getNumOperands() == 0 ||
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(MI->getNumOperands() == 1 &&
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(MI->getOperand(0).isPCRelativeDisp() ||
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(MI->getOperand(0).isMachineBasicBlock() ||
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MI->getOperand(0).isGlobalAddress() ||
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MI->getOperand(0).isExternalSymbol() ||
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MI->getOperand(0).isImmediate())) &&
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@ -87,13 +87,6 @@ namespace {
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Printer(std::ostream &o, TargetMachine &tm) : O(o), TM(tm) { }
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/// We name each basic block in a Function with a unique number, so
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/// that we can consistently refer to them later. This is cleared
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/// at the beginning of each call to runOnMachineFunction().
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///
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typedef std::map<const Value *, unsigned> ValueMapTy;
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ValueMapTy NumberForBB;
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/// Cache of mangled name for current function. This is
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/// recalculated at the beginning of each call to
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/// runOnMachineFunction().
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@ -366,10 +359,6 @@ void Printer::printConstantPool(MachineConstantPool *MCP) {
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/// method to print assembly for each instruction.
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///
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bool Printer::runOnMachineFunction(MachineFunction &MF) {
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// BBNumber is used here so that a given Printer will never give two
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// BBs the same name. (If you have a better way, please let me know!)
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static unsigned BBNumber = 0;
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O << "\n\n";
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// What's my mangled name?
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CurrentFnName = Mang->getValueName(MF.getFunction());
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@ -385,19 +374,11 @@ bool Printer::runOnMachineFunction(MachineFunction &MF) {
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O << "\t.type\t" << CurrentFnName << ", @function\n";
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O << CurrentFnName << ":\n";
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// Number each basic block so that we can consistently refer to them
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// in PC-relative references.
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NumberForBB.clear();
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for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
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I != E; ++I) {
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NumberForBB[I->getBasicBlock()] = BBNumber++;
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}
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// Print out code for the function.
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for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
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I != E; ++I) {
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// Print a label for the basic block.
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O << ".LBB" << NumberForBB[I->getBasicBlock()] << ":\t# "
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O << ".LBB" << CurrentFnName << "_" << I->getNumber() << ":\t# "
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<< I->getBasicBlock()->getName() << "\n";
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for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
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II != E; ++II) {
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@ -449,13 +430,17 @@ void Printer::printOp(const MachineOperand &MO,
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case MachineOperand::MO_UnextendedImmed:
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O << (int)MO.getImmedValue();
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return;
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case MachineOperand::MO_PCRelativeDisp: {
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ValueMapTy::const_iterator i = NumberForBB.find(MO.getVRegValue());
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assert (i != NumberForBB.end()
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&& "Could not find a BB in the NumberForBB map!");
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O << ".LBB" << i->second << " # PC rel: " << MO.getVRegValue()->getName();
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case MachineOperand::MO_MachineBasicBlock: {
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MachineBasicBlock *MBBOp = MO.getMachineBasicBlock();
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O << ".LBB" << Mang->getValueName(MBBOp->getParent()->getFunction())
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<< "_" << MBBOp->getNumber () << "\t# "
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<< MBBOp->getBasicBlock ()->getName ();
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return;
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}
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case MachineOperand::MO_PCRelativeDisp:
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std::cerr << "Shouldn't use addPCDisp() when building X86 MachineInstrs";
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abort ();
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return;
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case MachineOperand::MO_GlobalAddress:
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if (!elideOffsetKeyword)
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O << "OFFSET ";
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@ -682,13 +667,13 @@ void Printer::printMachineInstruction(const MachineInstr *MI) {
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{
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// The accepted forms of Raw instructions are:
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// 1. nop - No operand required
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// 2. jmp foo - PC relative displacement operand
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// 2. jmp foo - MachineBasicBlock operand
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// 3. call bar - GlobalAddress Operand or External Symbol Operand
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// 4. in AL, imm - Immediate operand
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//
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assert(MI->getNumOperands() == 0 ||
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(MI->getNumOperands() == 1 &&
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(MI->getOperand(0).isPCRelativeDisp() ||
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(MI->getOperand(0).isMachineBasicBlock() ||
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MI->getOperand(0).isGlobalAddress() ||
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MI->getOperand(0).isExternalSymbol() ||
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MI->getOperand(0).isImmediate())) &&
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