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| author | Jim Laskey <jlaskey@mac.com> | 2006-07-21 21:15:20 +0000 |
|---|---|---|
| committer | Jim Laskey <jlaskey@mac.com> | 2006-07-21 21:15:20 +0000 |
| commit | cd4317efcf334be10d9a98008a1445d6e12a7712 (patch) | |
| tree | 82f4e6381dbe6669926e797094654c0f430ed18c /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | 60f09928a0d22d5927ff0a40fe9163cf1ba1014a (diff) | |
Eliminate data relocations by using NULL instead of global empty list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29250 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index fba04670f2..9e0d5d2325 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -639,8 +639,10 @@ void LiveIntervals::computeIntervals() DEBUG(std::cerr << getInstructionIndex(mi) << "\t" << *mi); // handle implicit defs - for (const unsigned* id = tid.ImplicitDefs; *id; ++id) - handleRegisterDef(mbb, mi, *id); + if (tid.ImplicitDefs) { + for (const unsigned* id = tid.ImplicitDefs; *id; ++id) + handleRegisterDef(mbb, mi, *id); + } // handle explicit defs for (int i = mi->getNumOperands() - 1; i >= 0; --i) { |