[llvm] fa6d897 - [Analysis] MemoryDepChecker::couldPreventStoreLoadForward - remove dead store. NFCI.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2021-01-07T14:21:54Z
New Revision: fa6d8977999096b2a3ae1357aa38ddf73abaf414

URL: https://github.com/llvm/llvm-project/commit/fa6d8977999096b2a3ae1357aa38ddf73abaf414
DIFF: https://github.com/llvm/llvm-project/commit/fa6d8977999096b2a3ae1357aa38ddf73abaf414.diff

LOG: [Analysis] MemoryDepChecker::couldPreventStoreLoadForward - remove dead store. NFCI.

As we're breaking from the loop when clamping MaxVF, clang static analyzer was warning that the VF iterator was being updated and never used.

Added: 
    

Modified: 
    llvm/lib/Analysis/LoopAccessAnalysis.cpp

Removed: 
    


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diff  --git a/llvm/lib/Analysis/LoopAccessAnalysis.cpp b/llvm/lib/Analysis/LoopAccessAnalysis.cpp
index be340a3b3130..76e172534176 100644
--- a/llvm/lib/Analysis/LoopAccessAnalysis.cpp
+++ b/llvm/lib/Analysis/LoopAccessAnalysis.cpp
@@ -1338,7 +1338,7 @@ bool MemoryDepChecker::couldPreventStoreLoadForward(uint64_t Distance,
     // If the number of vector iteration between the store and the load are
     // small we could incur conflicts.
     if (Distance % VF && Distance / VF < NumItersForStoreLoadThroughMemory) {
-      MaxVFWithoutSLForwardIssues = (VF >>= 1);
+      MaxVFWithoutSLForwardIssues = (VF >> 1);
       break;
     }
   }