[PATCH] D150449: [NFC] Add reverse iterator support for BasicBlocks in llvm::Function

[Tianao Ge via Phabricator via llvm-commits]

getianao created this revision.
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In commit D140162 <https://reviews.llvm.org/D140162>, public access to `BasicBlocks` in `llvm::Function` was removed, including access to `getBasicBlockList()`. This revision aims to add reverse iterator support for `BasicBlocks` in `llvm::Function` to make it easier for developers to work with LLVM functions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D150449

Files:
  llvm/include/llvm/IR/Function.h


Index: llvm/include/llvm/IR/Function.h
===================================================================
--- llvm/include/llvm/IR/Function.h
+++ llvm/include/llvm/IR/Function.h
@@ -64,6 +64,8 @@
   // BasicBlock iterators...
   using iterator = BasicBlockListType::iterator;
   using const_iterator = BasicBlockListType::const_iterator;
+  using reverse_iterator = BasicBlockListType::reverse_iterator;
+  using const_reverse_iterator = BasicBlockListType::const_reverse_iterator;
 
   using arg_iterator = Argument *;
   using const_arg_iterator = const Argument *;
@@ -766,6 +768,10 @@
   const_iterator          begin() const { return BasicBlocks.begin(); }
   iterator                end  ()       { return BasicBlocks.end();   }
   const_iterator          end  () const { return BasicBlocks.end();   }
+  reverse_iterator rbegin() { return BasicBlocks.rbegin(); }
+  const_reverse_iterator rbegin() const { return BasicBlocks.rbegin(); }
+  reverse_iterator rend() { return BasicBlocks.rend(); }
+  const_reverse_iterator rend() const { return BasicBlocks.rend(); }
 
   size_t                   size() const { return BasicBlocks.size();  }
   bool                    empty() const { return BasicBlocks.empty(); }


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