[PATCH] D157397: Changed returning to false

[Konrad Kusiak via Phabricator via llvm-commits]

konradkusiak97 created this revision.
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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D157397

Files:
  llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp


Index: llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
+++ llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
@@ -871,6 +871,9 @@
   unsigned MaxMask = std::max(CI.DMask, Paired.DMask);
   unsigned MinMask = std::min(CI.DMask, Paired.DMask);
 
+  if (!MaxMask)
+    return false;
+
   unsigned AllowedBitsForMin = llvm::countr_zero(MaxMask);
   if ((1u << AllowedBitsForMin) <= MinMask)
     return false;


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