[PATCH] D79281: [mlir][DenseElementsAttr] Add support for ComplexType elements

[River Riddle via Phabricator via llvm-commits]

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This revision adds support for storing ComplexType elements inside of a DenseElementsAttr. We store complex objects as an array of two elements, matching the  definition of std::complex. There is no current attribute storage for ComplexType, but DenseElementsAttr provides API for access/creation using std::complex<>. Given that the internal implementation of DenseElementsAttr is already fairly opaque, the only real complexity here is in the printing/parsing. This revision keeps it simple for now and always uses hex when printing complex elements. A followup will add prettier syntax for this.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D79281

Files:
  mlir/include/mlir/IR/Attributes.h
  mlir/lib/IR/AsmPrinter.cpp
  mlir/lib/IR/AttributeDetail.h
  mlir/lib/IR/Attributes.cpp
  mlir/lib/Parser/Parser.cpp
  mlir/test/IR/dense-elements-hex.mlir
  mlir/unittests/IR/AttributeTest.cpp

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