[PATCH] D78190: Add Bfloat IR type

[Ties Stuij via Phabricator via llvm-commits]

stuij created this revision.
stuij added reviewers: SjoerdMeijer, rjmccall, rsmith, liutianle, RKSimon, craig.topper, jfb, LukeGeeson, sdesmalen.
Herald added a reviewer: deadalnix.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a reviewer: ctetreau.
Herald added a project: LLVM.

The Bfloat IR type is introduced to provide support for, initially, the BFloat16
datatype introduced with the Armv8.6 architecture (optional from Armv8.2
onwards). It has an 8-bit exponent and a 7-bit mantissa and behaves like an IEEE
754 floating point IR type.

This is part of a patch series upstreaming Armv8.6 features. Subsequent patches
will upstream intrinsics support and C-lang support for Bfloat.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78190

Files:
  llvm/docs/BitCodeFormat.rst
  llvm/docs/LangRef.rst
  llvm/include/llvm-c/Core.h
  llvm/include/llvm/ADT/APFloat.h
  llvm/include/llvm/Bitcode/LLVMBitCodes.h
  llvm/include/llvm/IR/Constants.h
  llvm/include/llvm/IR/DataLayout.h
  llvm/include/llvm/IR/Type.h
  llvm/lib/AsmParser/LLLexer.cpp
  llvm/lib/AsmParser/LLParser.cpp
  llvm/lib/Bitcode/Reader/BitcodeReader.cpp
  llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
  llvm/lib/CodeGen/MIRParser/MILexer.cpp
  llvm/lib/IR/AsmWriter.cpp
  llvm/lib/IR/Constants.cpp
  llvm/lib/IR/Core.cpp
  llvm/lib/IR/DataLayout.cpp
  llvm/lib/IR/Function.cpp
  llvm/lib/IR/LLVMContextImpl.cpp
  llvm/lib/IR/LLVMContextImpl.h
  llvm/lib/IR/Type.cpp
  llvm/lib/Support/APFloat.cpp
  llvm/lib/Target/Hexagon/HexagonTargetObjectFile.cpp
  llvm/test/Assembler/bfloat-constprop.ll
  llvm/test/Assembler/bfloat-conv.ll
  llvm/test/Assembler/bfloat.ll
  llvm/tools/llvm-c-test/echo.cpp

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