[mlir] Use range-based for loops (NFC)

Note that LLVM Coding Standards discourages std::for_each and
llvm::for_each unless the callable object already exists.

Author: kazutakahirata

mlir/lib/Dialect/Mesh/Transforms/ShardingPropagation.cpp

@@ -56,10 +56,10 @@ static llvm::raw_ostream &operator<<(llvm::raw_ostream &stream,
 template <typename Stream, typename Range>
 static Stream &printRange(Stream &stream, Range &&range) {
   stream << "[";
-  llvm::for_each(range, [&stream](auto &v) {
+  for (auto &v : range) {
     stream << v;
     stream << ", ";
-  });
+  }
   return stream << "]";
 }
 

mlir/lib/Dialect/Tosa/Transforms/TosaReduceTransposes.cpp

@@ -602,8 +602,8 @@ void TosaReduceTransposes::runOnOperation() {
         !llvm::isa<RankedTensorType>(output.getType()))
       return;
 
-    llvm::for_each(transposeOp.getPerms(),
-                   [&perms](const auto i) { perms.emplace_back(i); });
+    for (const auto i : transposeOp.getPerms())
+      perms.emplace_back(i);
 
     // We let --canonicalize deal with identity transpose.
     if (llvm::equal(llvm::seq<int32_t>(0, perms.size()), perms))

mlir/tools/mlir-tblgen/AttrOrTypeDefGen.cpp

@@ -245,9 +245,8 @@ void DefGen::createParentWithTraits() {
                    ? cast<NativeTrait>(&trait)->getFullyQualifiedTraitName()
                    : cast<InterfaceTrait>(&trait)->getFullyQualifiedTraitName();
       }));
-  llvm::for_each(traitNames, [&](auto &traitName) {
+  for (auto &traitName : traitNames)
     defParent.addTemplateParam(traitName);
-  });
 
   // Add OpAsmInterface::Trait if we automatically generate mnemonic alias
   // method.