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authorJim Grosbach <grosbach@apple.com>2010-06-02 15:29:36 +0000
committerJim Grosbach <grosbach@apple.com>2010-06-02 15:29:36 +0000
commit086723d244952aee690a8aa39485a0fa0d3a7700 (patch)
treee41a55b3ec8b9a1a54498060fd226dc34f53a6b4 /lib/CodeGen/CriticalAntiDepBreaker.cpp
parentb26f27969ec895ff14f755e70f3a205460e96cf2 (diff)
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Not all entries in the range will have an SUnit. Check for that when looking
for debug information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105324 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CriticalAntiDepBreaker.cpp')
-rw-r--r--lib/CodeGen/CriticalAntiDepBreaker.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/CriticalAntiDepBreaker.cpp b/lib/CodeGen/CriticalAntiDepBreaker.cpp
index 5eabe65570..42cc44812d 100644
--- a/lib/CodeGen/CriticalAntiDepBreaker.cpp
+++ b/lib/CodeGen/CriticalAntiDepBreaker.cpp
@@ -530,6 +530,7 @@ BreakAntiDependencies(const std::vector<SUnit>& SUnits,
// related to the anti-dependency register, make sure to update that
// as well.
const SUnit *SU = MISUnitMap[Q->second->getParent()];
+ if (!SU) continue;
for (unsigned i = 0, e = SU->DbgInstrList.size() ; i < e ; ++i) {
MachineInstr *DI = SU->DbgInstrList[i];
assert (DI->getNumOperands()==3 && DI->getOperand(0).isReg() &&