[llvm] d3649c2 - [Vectorize] Fix a warning

[Kazu Hirata via llvm-commits]

Author: Kazu Hirata
Date: 2022-09-13T09:30:06-07:00
New Revision: d3649c2be463a58175639ce0be21daf10df10d3f

URL: https://github.com/llvm/llvm-project/commit/d3649c2be463a58175639ce0be21daf10df10d3f
DIFF: https://github.com/llvm/llvm-project/commit/d3649c2be463a58175639ce0be21daf10df10d3f.diff

LOG: [Vectorize] Fix a warning

This patch fixes:

  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:5879:5: error:
  expression result unused [-Werror,-Wunused-value]

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 266b592b8165..a58b4bef0e6b 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -5876,7 +5876,7 @@ static bool isAlternateInstruction(const Instruction *I,
     assert((MainP == P || AltP == P || MainP == SwappedP || AltP == SwappedP) &&
            "CmpInst expected to match either main or alternate predicate or "
            "their swap.");
-    AltP;
+    (void)AltP;
     return MainP != P && MainP != SwappedP;
   }
   return I->getOpcode() == AltOp->getOpcode();