maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Style: Don't reuse variables for multiple purposes. 

No functional change.

llvm-svn: 158742
This commit is contained in:
Jakob Stoklund Olesen 2012-06-19 21:10:18 +00:00
parent 51a8d8b8b5
commit 8eb9905a7c
1 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
llvm/lib/CodeGen/PeepholeOptimizer.cpp
View File

@ -145,8 +145,7 @@ optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
TargetRegisterInfo::isPhysicalRegister(SrcReg))
return false;
MachineRegisterInfo::use_nodbg_iterator UI = MRI->use_nodbg_begin(SrcReg);
if (++UI == MRI->use_nodbg_end())
if (MRI->hasOneNonDBGUse(SrcReg))
// No other uses.
return false;
@ -160,8 +159,8 @@ 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;
UI = MRI->use_nodbg_begin(DstReg);
for (MachineRegisterInfo::use_nodbg_iterator UE = MRI->use_nodbg_end();
for (MachineRegisterInfo::use_nodbg_iterator
UI = MRI->use_nodbg_begin(DstReg), UE = MRI->use_nodbg_end();
UI != UE; ++UI)
ReachedBBs.insert(UI->getParent());
@ -172,8 +171,8 @@ optimizeExtInstr(MachineInstr *MI, MachineBasicBlock *MBB,
SmallVector<MachineOperand*, 8> ExtendedUses;
bool ExtendLife = true;
UI = MRI->use_nodbg_begin(SrcReg);
for (MachineRegisterInfo::use_nodbg_iterator UE = MRI->use_nodbg_end();
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;
@ -239,9 +238,9 @@ 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.
UI = MRI->use_nodbg_begin(DstReg);
for (MachineRegisterInfo::use_nodbg_iterator
UE = MRI->use_nodbg_end(); UI != UE; ++UI)
UI = MRI->use_nodbg_begin(DstReg), UE = MRI->use_nodbg_end();
UI != UE; ++UI)
if (UI->isPHI())
PHIBBs.insert(UI->getParent());