[llvm] 9ac0315 - Add comment to assert from a843f26

[David Blaikie via llvm-commits]

Author: David Blaikie
Date: 2024-03-12T18:28:30Z
New Revision: 9ac03158987802706110ef465c4b6a7553cc4b86

URL: https://github.com/llvm/llvm-project/commit/9ac03158987802706110ef465c4b6a7553cc4b86
DIFF: https://github.com/llvm/llvm-project/commit/9ac03158987802706110ef465c4b6a7553cc4b86.diff

LOG: Add comment to assert from a843f26

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 6ef46e3c5258b3..b8b67609d755fd 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -16671,7 +16671,7 @@ bool SLPVectorizerPass::vectorizeChainsInBlock(BasicBlock *BB, BoUpSLP &R) {
           return false;
       }
       // Undefs come last.
-      assert(U1 && U2);
+      assert(U1 && U2 && "The only thing left should be undef & undef.");
       continue;
     }
     return false;