[MLIR] NFC. JitRunner - use range-based for

Address clang-tidy warning in JitRunner.cpp. Use range-based for.

diff --git a/mlir/lib/ExecutionEngine/JitRunner.cpp b/mlir/lib/ExecutionEngine/JitRunner.cpp
index 9464ce8..b4279af 100644 (file)
--- a/mlir/lib/ExecutionEngine/JitRunner.cpp
+++ b/mlir/lib/ExecutionEngine/JitRunner.cpp
@@ -393,8 +393,8 @@ int mlir::JitRunnerMain(int argc, char **argv, const DialectRegistry &registry,
   // Configure TargetMachine builder based on the command line options
   llvm::SubtargetFeatures features;
   if (!options.mAttrs.empty()) {
-    for (unsigned i = 0; i != options.mAttrs.size(); ++i)
-      features.AddFeature(options.mAttrs[i]);
+    for (StringRef attr : options.mAttrs)
+      features.AddFeature(attr);
     tmBuilderOrError->addFeatures(features.getFeatures());
   }