[Mlir-commits] [mlir] 671455a - [mlir] Fix possible null dereference during error logging (#157455)

[llvmlistbot at llvm.org]

Author: Daniel Kuts
Date: 2025-09-10T09:10:11+08:00
New Revision: 671455ae3fa97fff65cecdbec8b259eb0a55a574

URL: https://github.com/llvm/llvm-project/commit/671455ae3fa97fff65cecdbec8b259eb0a55a574
DIFF: https://github.com/llvm/llvm-project/commit/671455ae3fa97fff65cecdbec8b259eb0a55a574.diff

LOG: [mlir] Fix possible null dereference during error logging (#157455)

Fixes #157451

Added: 
    

Modified: 
    mlir/lib/Conversion/MPIToLLVM/MPIToLLVM.cpp

Removed: 
    


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diff  --git a/mlir/lib/Conversion/MPIToLLVM/MPIToLLVM.cpp b/mlir/lib/Conversion/MPIToLLVM/MPIToLLVM.cpp
index e5496e53ae529..aa47e398eb684 100644
--- a/mlir/lib/Conversion/MPIToLLVM/MPIToLLVM.cpp
+++ b/mlir/lib/Conversion/MPIToLLVM/MPIToLLVM.cpp
@@ -405,7 +405,8 @@ std::unique_ptr<MPIImplTraits> MPIImplTraits::get(ModuleOp &moduleOp) {
     return std::make_unique<OMPIImplTraits>(moduleOp);
   if (!strAttr || strAttr.getValue() != "MPICH")
     moduleOp.emitWarning() << "Unknown \"MPI:Implementation\" value in DLTI ("
-                           << strAttr.getValue() << "), defaulting to MPICH";
+                           << (strAttr ? strAttr.getValue() : "<NULL>")
+                           << "), defaulting to MPICH";
   return std::make_unique<MPICHImplTraits>(moduleOp);
 }