[llvm] d397e29 - A15SDOptimizer::getPrefSPRLane - fix null dereference warning. NFCI

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2019-11-02T21:49:12Z
New Revision: d397e29273ac5b05c2b6e382420310489e0f9d55

URL: https://github.com/llvm/llvm-project/commit/d397e29273ac5b05c2b6e382420310489e0f9d55
DIFF: https://github.com/llvm/llvm-project/commit/d397e29273ac5b05c2b6e382420310489e0f9d55.diff

LOG: A15SDOptimizer::getPrefSPRLane - fix null dereference warning. NFCI

Added: 
    

Modified: 
    llvm/lib/Target/ARM/A15SDOptimizer.cpp

Removed: 
    


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diff  --git a/llvm/lib/Target/ARM/A15SDOptimizer.cpp b/llvm/lib/Target/ARM/A15SDOptimizer.cpp
index 30b9c8071ba2..f8a86a70c077 100644
--- a/llvm/lib/Target/ARM/A15SDOptimizer.cpp
+++ b/llvm/lib/Target/ARM/A15SDOptimizer.cpp
@@ -157,9 +157,8 @@ unsigned A15SDOptimizer::getPrefSPRLane(unsigned SReg) {
   MachineInstr *MI = MRI->getVRegDef(SReg);
   if (!MI) return ARM::ssub_0;
   MachineOperand *MO = MI->findRegisterDefOperand(SReg);
-
-  assert(MO->isReg() && "Non-register operand found!");
   if (!MO) return ARM::ssub_0;
+  assert(MO->isReg() && "Non-register operand found!");
 
   if (MI->isCopy() && usesRegClass(MI->getOperand(1),
                                     &ARM::SPRRegClass)) {