[llvm] Use *Set::insert_range (NFC) (#133353)

We can use *Set::insert_range to collapse:

  for (auto Elem : Range)
    Set.insert(E.first);

down to:

  Set.insert_range(llvm::make_first_range(Range));

In some cases, we can further fold that into the set declaration.

1 files changed, 2 insertions, 4 deletions

diff --git a/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp
index e9a7153..5ee8c50 100644
--- a/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp
@@ -217,10 +217,8 @@ bool TypeSetByHwMode::operator==(const TypeSetByHwMode &VTS) const {
     return false;
 
   SmallSet<unsigned, 4> Modes;
-  for (auto &I : *this)
-    Modes.insert(I.first);
-  for (const auto &I : VTS)
-    Modes.insert(I.first);
+  Modes.insert_range(llvm::make_first_range(*this));
+  Modes.insert_range(llvm::make_first_range(VTS));
 
   if (HaveDefault) {
     // Both sets have default mode.