[CodeGen] Move printing MO_CFIIndex operands to MachineOperand::print
Work towards the unification of MIR and debug output by refactoring the
interfaces.
Before this patch we printed "<call frame instruction>" in the debug
output.
llvm-svn: 321084
diff --git a/llvm/lib/CodeGen/MachineOperand.cpp b/llvm/lib/CodeGen/MachineOperand.cpp
index d17c481..50f7017 100644
--- a/llvm/lib/CodeGen/MachineOperand.cpp
+++ b/llvm/lib/CodeGen/MachineOperand.cpp
@@ -412,6 +412,21 @@
return nullptr;
}
+static void printCFIRegister(unsigned DwarfReg, raw_ostream &OS,
+ const TargetRegisterInfo *TRI) {
+ if (!TRI) {
+ OS << "%dwarfreg." << DwarfReg;
+ return;
+ }
+
+ int Reg = TRI->getLLVMRegNum(DwarfReg, true);
+ if (Reg == -1) {
+ OS << "<badreg>";
+ return;
+ }
+ OS << printReg(Reg, TRI);
+}
+
void MachineOperand::printSubregIdx(raw_ostream &OS, uint64_t Index,
const TargetRegisterInfo *TRI) {
OS << "%subreg.";
@@ -490,6 +505,108 @@
OS << '.' << Name;
}
+static void printCFI(raw_ostream &OS, const MCCFIInstruction &CFI,
+ const TargetRegisterInfo *TRI) {
+ switch (CFI.getOperation()) {
+ case MCCFIInstruction::OpSameValue:
+ OS << "same_value ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ break;
+ case MCCFIInstruction::OpRememberState:
+ OS << "remember_state ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ break;
+ case MCCFIInstruction::OpRestoreState:
+ OS << "restore_state ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ break;
+ case MCCFIInstruction::OpOffset:
+ OS << "offset ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ OS << ", " << CFI.getOffset();
+ break;
+ case MCCFIInstruction::OpDefCfaRegister:
+ OS << "def_cfa_register ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ break;
+ case MCCFIInstruction::OpDefCfaOffset:
+ OS << "def_cfa_offset ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ OS << CFI.getOffset();
+ break;
+ case MCCFIInstruction::OpDefCfa:
+ OS << "def_cfa ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ OS << ", " << CFI.getOffset();
+ break;
+ case MCCFIInstruction::OpRelOffset:
+ OS << "rel_offset ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ OS << ", " << CFI.getOffset();
+ break;
+ case MCCFIInstruction::OpAdjustCfaOffset:
+ OS << "adjust_cfa_offset ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ OS << CFI.getOffset();
+ break;
+ case MCCFIInstruction::OpRestore:
+ OS << "restore ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ break;
+ case MCCFIInstruction::OpEscape: {
+ OS << "escape ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ if (!CFI.getValues().empty()) {
+ size_t e = CFI.getValues().size() - 1;
+ for (size_t i = 0; i < e; ++i)
+ OS << format("0x%02x", uint8_t(CFI.getValues()[i])) << ", ";
+ OS << format("0x%02x", uint8_t(CFI.getValues()[e])) << ", ";
+ }
+ break;
+ }
+ case MCCFIInstruction::OpUndefined:
+ OS << "undefined ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ break;
+ case MCCFIInstruction::OpRegister:
+ OS << "register ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ printCFIRegister(CFI.getRegister(), OS, TRI);
+ OS << ", ";
+ printCFIRegister(CFI.getRegister2(), OS, TRI);
+ break;
+ case MCCFIInstruction::OpWindowSave:
+ OS << "window_save ";
+ if (MCSymbol *Label = CFI.getLabel())
+ MachineOperand::printSymbol(OS, *Label);
+ break;
+ default:
+ // TODO: Print the other CFI Operations.
+ OS << "<unserializable cfi directive>";
+ break;
+ }
+}
+
void MachineOperand::print(raw_ostream &OS, const TargetRegisterInfo *TRI,
const TargetIntrinsicInfo *IntrinsicInfo) const {
tryToGetTargetInfo(*this, TRI, IntrinsicInfo);
@@ -693,9 +810,13 @@
case MachineOperand::MO_MCSymbol:
printSymbol(OS, *getMCSymbol());
break;
- case MachineOperand::MO_CFIIndex:
- OS << "<call frame instruction>";
+ case MachineOperand::MO_CFIIndex: {
+ if (const MachineFunction *MF = getMFIfAvailable(*this))
+ printCFI(OS, MF->getFrameInstructions()[getCFIIndex()], TRI);
+ else
+ OS << "<cfi directive>";
break;
+ }
case MachineOperand::MO_IntrinsicID: {
Intrinsic::ID ID = getIntrinsicID();
if (ID < Intrinsic::num_intrinsics)