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Clarify some comments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60683 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-12-08 04:53:23 +00:00
parent 230591900c
commit c93ced5b34
1 changed files with 2 additions and 2 deletions
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4
lib/CodeGen/LiveIntervalAnalysis.cpp
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@@ -918,7 +918,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
MachineRegisterInfo::def_iterator I = mri_->def_begin(Reg), MachineRegisterInfo::def_iterator I = mri_->def_begin(Reg),
E = mri_->def_end(); E = mri_->def_end();
// For the def, it should be the only def. // For the def, it should be the only def of that register.
if (MO.isDef() && (next(I) != E || IsLiveIn)) if (MO.isDef() && (next(I) != E || IsLiveIn))
return false; return false;
@@ -931,7 +931,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
else if (Reg != ImpUse) else if (Reg != ImpUse)
return false; return false;
} }
// For uses, there should be only one associate def. // For the use, there should be only one associated def.
if (I != E && (next(I) != E || IsLiveIn)) if (I != E && (next(I) != E || IsLiveIn))
return false; return false;
} }