diff options
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) { |