[PATCH] D113511: [mlir] Optimize usage of llvm::mapped_iterator

[River Riddle via Phabricator via llvm-commits]

rriddle created this revision.
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mapped_iterator is a useful abstraction for applying a
map function over an existing iterator, but our current
usage ends up allocating storage/making indirect calls
even with the map function is a known function, which
is horribly inefficient. This commit refactors the usage
of mapped_iterator to avoid this, and allows for directly
referencing the map function when dereferencing.

Fixes PR52319


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113511

Files:
  llvm/include/llvm/ADT/STLExtras.h
  mlir/include/mlir/IR/BuiltinAttributes.h
  mlir/include/mlir/IR/Diagnostics.h
  mlir/include/mlir/IR/DialectInterface.h
  mlir/include/mlir/IR/TypeRange.h
  mlir/include/mlir/IR/TypeUtilities.h
  mlir/include/mlir/IR/UseDefLists.h
  mlir/lib/IR/BuiltinAttributes.cpp
  mlir/lib/IR/TypeUtilities.cpp

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