[llvm] 78739ff - [llvm][HashRecognize] Fix compiler warning on Arm 32-bit (#161821)

[via llvm-commits]

Author: David Spickett
Date: 2025-10-03T15:58:11+01:00
New Revision: 78739ff84a5986623684235e1f29e55b754a1594

URL: https://github.com/llvm/llvm-project/commit/78739ff84a5986623684235e1f29e55b754a1594
DIFF: https://github.com/llvm/llvm-project/commit/78739ff84a5986623684235e1f29e55b754a1594.diff

LOG: [llvm][HashRecognize] Fix compiler warning on Arm 32-bit (#161821)

```
/home/david.spickett/llvm-project/llvm/lib/Analysis/HashRecognize.cpp:100:54: warning: comparison of integers of different signs:
'typename iterator_traits<ilist_iterator_w_bits<node_options<Instruction, true, false, void, true, BasicBlock>, false, false>>::difference_type' (aka 'int') and 'size_type' (aka 'unsigned int') [-Wsign-compare]
  100 |   return std::distance(Latch->begin(), Latch->end()) != Visited.size();
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~
```

By using Latch->size() instead.

Added: 
    

Modified: 
    llvm/lib/Analysis/HashRecognize.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Analysis/HashRecognize.cpp b/llvm/lib/Analysis/HashRecognize.cpp
index 5d7ee1fe8eb12..4529123508a7c 100644
--- a/llvm/lib/Analysis/HashRecognize.cpp
+++ b/llvm/lib/Analysis/HashRecognize.cpp
@@ -97,7 +97,7 @@ static bool containsUnreachable(const Loop &L,
       }
     }
   }
-  return std::distance(Latch->begin(), Latch->end()) != Visited.size();
+  return Latch->size() != Visited.size();
 }
 
 /// A structure that can hold either a Simple Recurrence or a Conditional