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Phase 2 of the great MachineRegisterInfo cleanup. This time, we're changing

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operator* on the by-operand iterators to return a MachineOperand& rather than
a MachineInstr&.  At this point they almost behave like normal iterators!

Again, this requires making some existing loops more verbose, but should pave
the way for the big range-based for-loop cleanups in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203865 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2014-03-13 23:12:04 +00:00
parent d3fc1be4f6
commit bf63022492
35 changed files with 255 additions and 150 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CodeGen/TwoAddressInstructionPass.cpp
+6 -6
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@@ -229,7 +229,7 @@ sink3AddrInstruction(MachineInstr *MI, unsigned SavedReg,
for (MachineRegisterInfo::use_nodbg_iterator
UI = MRI->use_nodbg_begin(SavedReg),
UE = MRI->use_nodbg_end(); UI != UE; ++UI) {
MachineOperand &UseMO = UI.getOperand();
MachineOperand &UseMO = *UI;
if (!UseMO.isKill())
continue;
KillMI = UseMO.getParent();
@@ -317,7 +317,7 @@ bool TwoAddressInstructionPass::noUseAfterLastDef(unsigned Reg, unsigned Dist,
unsigned LastUse = Dist;
for (MachineRegisterInfo::reg_iterator I = MRI->reg_begin(Reg),
E = MRI->reg_end(); I != E; ++I) {
MachineOperand &MO = I.getOperand();
MachineOperand &MO = *I;
MachineInstr *MI = MO.getParent();
if (MI->getParent() != MBB || MI->isDebugValue())
continue;
@@ -419,7 +419,7 @@ static bool isKilled(MachineInstr &MI, unsigned Reg,
// go with what the kill flag says.
if (std::next(Begin) != MRI->def_end())
return true;
DefMI = &*Begin;
DefMI = Begin->getParent();
bool IsSrcPhys, IsDstPhys;
unsigned SrcReg, DstReg;
// If the def is something other than a copy, then it isn't going to
@@ -457,7 +457,7 @@ MachineInstr *findOnlyInterestingUse(unsigned Reg, MachineBasicBlock *MBB,
if (!MRI->hasOneNonDBGUse(Reg))
// None or more than one use.
return 0;
MachineInstr &UseMI = *MRI->use_nodbg_begin(Reg);
MachineInstr &UseMI = *MRI->use_instr_nodbg_begin(Reg);
if (UseMI.getParent() != MBB)
return 0;
unsigned SrcReg;
@@ -914,8 +914,8 @@ rescheduleMIBelowKill(MachineBasicBlock::iterator &mi,
/// instruction too close to the defs of its register dependencies.
bool TwoAddressInstructionPass::isDefTooClose(unsigned Reg, unsigned Dist,
MachineInstr *MI) {
for (MachineRegisterInfo::def_iterator DI = MRI->def_begin(Reg),
DE = MRI->def_end(); DI != DE; ++DI) {
for (MachineRegisterInfo::def_instr_iterator DI = MRI->def_instr_begin(Reg),
DE = MRI->def_instr_end(); DI != DE; ++DI) {
MachineInstr *DefMI = &*DI;
if (DefMI->getParent() != MBB || DefMI->isCopy() || DefMI->isCopyLike())
continue;