[llvm] 3246a32 - Fix MSVC "not all control paths return a value" warning. NFC.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2023-11-30T10:07:01Z
New Revision: 3246a32d3f6b97467ecdf2682d44a6515dbccf96

URL: https://github.com/llvm/llvm-project/commit/3246a32d3f6b97467ecdf2682d44a6515dbccf96
DIFF: https://github.com/llvm/llvm-project/commit/3246a32d3f6b97467ecdf2682d44a6515dbccf96.diff

LOG: Fix MSVC "not all control paths return a value" warning. NFC.

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 12212802b62ea50..a2479264c71f5ce 100644
--- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -6947,6 +6947,7 @@ static bool ReduceLoopStrength(Loop *L, IVUsers &IU, ScalarEvolution &SE,
     case cl::BOU_UNSET:
       return TTI.shouldFoldTerminatingConditionAfterLSR();
     }
+    llvm_unreachable("Unhandled cl::boolOrDefault enum");
   }();
 
   if (EnableFormTerm) {