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CodeGen: Use MachineInstr& in LDVImpl::handleDebugValue, NFC

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Avoid another implicit conversion from iterator to pointer.

llvm-svn: 274294
This commit is contained in:
Duncan P. N. Exon Smith 2016-06-30 23:13:38 +00:00
parent 1e3982dae5
commit a7c67ff659
1 changed files with 13 additions and 14 deletions
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27
lib/CodeGen/LiveDebugVariables.cpp
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@ -314,7 +314,7 @@ class LDVImpl {
/// @param MI DBG_VALUE instruction /// @param MI DBG_VALUE instruction
/// @param Idx Last valid SLotIndex before instruction. /// @param Idx Last valid SLotIndex before instruction.
/// @return True if the DBG_VALUE instruction should be deleted. /// @return True if the DBG_VALUE instruction should be deleted.
bool handleDebugValue(MachineInstr *MI, SlotIndex Idx); bool handleDebugValue(MachineInstr &MI, SlotIndex Idx);
/// collectDebugValues - Collect and erase all DBG_VALUE instructions, adding /// collectDebugValues - Collect and erase all DBG_VALUE instructions, adding
/// a UserValue def for each instruction. /// a UserValue def for each instruction.
@ -488,24 +488,23 @@ UserValue *LDVImpl::lookupVirtReg(unsigned VirtReg) {
return nullptr; return nullptr;
} }
bool LDVImpl::handleDebugValue(MachineInstr *MI, SlotIndex Idx) { bool LDVImpl::handleDebugValue(MachineInstr &MI, SlotIndex Idx) {
// DBG_VALUE loc, offset, variable // DBG_VALUE loc, offset, variable
if (MI->getNumOperands() != 4 || if (MI.getNumOperands() != 4 ||
!(MI->getOperand(1).isReg() || MI->getOperand(1).isImm()) || !(MI.getOperand(1).isReg() || MI.getOperand(1).isImm()) ||
!MI->getOperand(2).isMetadata()) { !MI.getOperand(2).isMetadata()) {
DEBUG(dbgs() << "Can't handle " << *MI); DEBUG(dbgs() << "Can't handle " << MI);
return false; return false;
} }
// Get or create the UserValue for (variable,offset). // Get or create the UserValue for (variable,offset).
bool IsIndirect = MI->isIndirectDebugValue(); bool IsIndirect = MI.isIndirectDebugValue();
unsigned Offset = IsIndirect ? MI->getOperand(1).getImm() : 0; unsigned Offset = IsIndirect ? MI.getOperand(1).getImm() : 0;
const MDNode *Var = MI->getDebugVariable(); const MDNode *Var = MI.getDebugVariable();
const MDNode *Expr = MI->getDebugExpression(); const MDNode *Expr = MI.getDebugExpression();
//here. //here.
UserValue *UV = UserValue *UV = getUserValue(Var, Expr, Offset, IsIndirect, MI.getDebugLoc());
getUserValue(Var, Expr, Offset, IsIndirect, MI->getDebugLoc()); UV->addDef(Idx, MI.getOperand(0));
UV->addDef(Idx, MI->getOperand(0));
return true; return true;
} }
@ -527,7 +526,7 @@ bool LDVImpl::collectDebugValues(MachineFunction &mf) {
: LIS->getInstructionIndex(*std::prev(MBBI)).getRegSlot(); : LIS->getInstructionIndex(*std::prev(MBBI)).getRegSlot();
// Handle consecutive DBG_VALUE instructions with the same slot index. // Handle consecutive DBG_VALUE instructions with the same slot index.
do { do {
if (handleDebugValue(MBBI, Idx)) { if (handleDebugValue(*MBBI, Idx)) {
MBBI = MBB->erase(MBBI); MBBI = MBB->erase(MBBI);
Changed = true; Changed = true;
} else } else