[llvm] efb5040 - Fixed warning about signed/unsigned comparison

[Stanislav Mekhanoshin via llvm-commits]

Author: Stanislav Mekhanoshin
Date: 2020-07-17T11:03:42-07:00
New Revision: efb5040262930908a88632ff91f3df3cba4a7c1d

URL: https://github.com/llvm/llvm-project/commit/efb5040262930908a88632ff91f3df3cba4a7c1d
DIFF: https://github.com/llvm/llvm-project/commit/efb5040262930908a88632ff91f3df3cba4a7c1d.diff

LOG: Fixed warning about signed/unsigned comparison

I've got the report clang11 issues signed/unsigned mismatch
warning here. For some reason only clang11 seems to issue
this warning.

Differential Revision: https://reviews.llvm.org/D83916

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 5bc35aa4695f..5fb8ad56d8b3 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -7407,7 +7407,7 @@ bool SLPVectorizerPass::vectorizeChainsInBlock(BasicBlock *BB, BoUpSLP &R) {
 
       while (SameTypeIt != E &&
              (*SameTypeIt)->getType() == EltTy &&
-             (SameTypeIt - IncIt) < MaxNumElts) {
+             static_cast<unsigned>(SameTypeIt - IncIt) < MaxNumElts) {
         VisitedInstrs.insert(*SameTypeIt);
         ++SameTypeIt;
       }