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-rw-r--r--lib/CodeGen/MachineSSAUpdater.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineSSAUpdater.cpp b/lib/CodeGen/MachineSSAUpdater.cpp
index 99fb99ac3c..84d6df2539 100644
--- a/lib/CodeGen/MachineSSAUpdater.cpp
+++ b/lib/CodeGen/MachineSSAUpdater.cpp
@@ -329,7 +329,7 @@ public:
/// InstrIsPHI - Check if an instruction is a PHI.
///
static MachineInstr *InstrIsPHI(MachineInstr *I) {
- if (I->isPHI())
+ if (I && I->isPHI())
return I;
return 0;
}