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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.

llvm-svn: 203865
This commit is contained in:
Owen Anderson
2014-03-13 23:12:04 +00:00
parent b00cc1f92f
commit 16c6bf49b7
35 changed files with 255 additions and 150 deletions
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14
llvm/lib/CodeGen/PeepholeOptimizer.cpp
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@@ -187,8 +187,8 @@ optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
// The source has other uses. See if we can replace the other uses with use of
// the result of the extension.
SmallPtrSet<MachineBasicBlock*, 4> ReachedBBs;
for (MachineRegisterInfo::use_nodbg_iterator
UI = MRI->use_nodbg_begin(DstReg), UE = MRI->use_nodbg_end();
for (MachineRegisterInfo::use_instr_nodbg_iterator
UI = MRI->use_instr_nodbg_begin(DstReg), UE = MRI->use_instr_nodbg_end();
UI != UE; ++UI)
ReachedBBs.insert(UI->getParent());
@@ -202,8 +202,8 @@ optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
for (MachineRegisterInfo::use_nodbg_iterator
UI = MRI->use_nodbg_begin(SrcReg), UE = MRI->use_nodbg_end();
UI != UE; ++UI) {
MachineOperand &UseMO = UI.getOperand();
MachineInstr *UseMI = &*UI;
MachineOperand &UseMO = *UI;
MachineInstr *UseMI = UseMO.getParent();
if (UseMI == MI)
continue;
@@ -270,9 +270,9 @@ optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
// Look for PHI uses of the extended result, we don't want to extend the
// liveness of a PHI input. It breaks all kinds of assumptions down
// stream. A PHI use is expected to be the kill of its source values.
for (MachineRegisterInfo::use_nodbg_iterator
UI = MRI->use_nodbg_begin(DstReg), UE = MRI->use_nodbg_end();
UI != UE; ++UI)
for (MachineRegisterInfo::use_instr_nodbg_iterator
UI = MRI->use_instr_nodbg_begin(DstReg),
UE = MRI->use_instr_nodbg_end(); UI != UE; ++UI)
if (UI->isPHI())
PHIBBs.insert(UI->getParent());