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[CodeGen][NFC] Refactor MachineInstr::print

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* Handle more cases where the MI is not attached yet
* Add similar asserts like in MIRPrinter::print

llvm-svn: 322848
This commit is contained in:
Francis Visoiu Mistrih 2018-01-18 14:52:14 +00:00
parent 5e5fda04d8
commit f2d53ff2dd
1 changed files with 45 additions and 21 deletions
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66
lib/CodeGen/MachineInstr.cpp
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@ -74,6 +74,29 @@
using namespace llvm;
static const MachineFunction *getMFIfAvailable(const MachineInstr &MI) {
if (const MachineBasicBlock *MBB = MI.getParent())
if (const MachineFunction *MF = MBB->getParent())
return MF;
return nullptr;
}
// Try to crawl up to the machine function and get TRI and IntrinsicInfo from
// it.
static void tryToGetTargetInfo(const MachineInstr &MI,
const TargetRegisterInfo *&TRI,
const MachineRegisterInfo *&MRI,
const TargetIntrinsicInfo *&IntrinsicInfo,
const TargetInstrInfo *&TII) {
if (const MachineFunction *MF = getMFIfAvailable(MI)) {
TRI = MF->getSubtarget().getRegisterInfo();
MRI = &MF->getRegInfo();
IntrinsicInfo = MF->getTarget().getIntrinsicInfo();
TII = MF->getSubtarget().getInstrInfo();
}
}
void MachineInstr::addImplicitDefUseOperands(MachineFunction &MF) {
if (MCID->ImplicitDefs)
for (const MCPhysReg *ImpDefs = MCID->getImplicitDefs(); *ImpDefs;
@ -1209,11 +1232,15 @@ LLVM_DUMP_METHOD void MachineInstr::dump() const {
void MachineInstr::print(raw_ostream &OS, bool SkipOpers, bool SkipDebugLoc,
const TargetInstrInfo *TII) const {
const Module *M = nullptr;
if (const MachineBasicBlock *MBB = getParent())
if (const MachineFunction *MF = MBB->getParent())
M = MF->getFunction().getParent();
const Function *F = nullptr;
if (const MachineFunction *MF = getMFIfAvailable(*this)) {
F = &MF->getFunction();
M = F->getParent();
}
ModuleSlotTracker MST(M);
if (F)
MST.incorporateFunction(*F);
print(OS, MST, SkipOpers, SkipDebugLoc, TII);
}
@ -1225,18 +1252,10 @@ void MachineInstr::print(raw_ostream &OS, ModuleSlotTracker &MST,
const TargetRegisterInfo *TRI = nullptr;
const MachineRegisterInfo *MRI = nullptr;
const TargetIntrinsicInfo *IntrinsicInfo = nullptr;
tryToGetTargetInfo(*this, TRI, MRI, IntrinsicInfo, TII);
if (const MachineBasicBlock *MBB = getParent()) {
MF = MBB->getParent();
if (MF) {
MRI = &MF->getRegInfo();
TRI = MF->getSubtarget().getRegisterInfo();
if (!TII)
TII = MF->getSubtarget().getInstrInfo();
IntrinsicInfo = MF->getTarget().getIntrinsicInfo();
}
}
if (isCFIInstruction())
assert(getNumOperands() == 1 && "Expected 1 operand in CFI instruction");
SmallBitVector PrintedTypes(8);
bool ShouldPrintRegisterTies = hasComplexRegisterTies();
@ -1248,18 +1267,23 @@ void MachineInstr::print(raw_ostream &OS, ModuleSlotTracker &MST,
return findTiedOperandIdx(OpIdx);
return 0U;
};
unsigned StartOp = 0;
unsigned e = getNumOperands();
// Print explicitly defined operands on the left of an assignment syntax.
unsigned StartOp = 0, e = getNumOperands();
for (; StartOp < e && getOperand(StartOp).isReg() &&
getOperand(StartOp).isDef() && !getOperand(StartOp).isImplicit();
++StartOp) {
while (StartOp < e) {
const MachineOperand &MO = getOperand(StartOp);
if (!MO.isReg() || !MO.isDef() || MO.isImplicit())
break;
if (StartOp != 0)
OS << ", ";
LLT TypeToPrint = MRI ? getTypeToPrint(StartOp, PrintedTypes, *MRI) : LLT{};
unsigned TiedOperandIdx = getTiedOperandIdx(StartOp);
getOperand(StartOp).print(OS, MST, TypeToPrint, /*PrintDef=*/false,
ShouldPrintRegisterTies, TiedOperandIdx, TRI,
IntrinsicInfo);
MO.print(OS, MST, TypeToPrint, /*PrintDef=*/false, ShouldPrintRegisterTies,
TiedOperandIdx, TRI, IntrinsicInfo);
++StartOp;
}
if (StartOp != 0)