[PATCH] D55625: [Intrinsic] Unsigned Fixed Point Multiplication Intrinsic

[Leonard Chan via Phabricator via llvm-commits]

leonardchan created this revision.
leonardchan added reviewers: ebevhan, bjope, craig.topper, RKSimon.
Herald added a subscriber: hiraditya.

Add an intrinsic that takes 2 unsigned integers with the scale of them provided as the third argument and performs fixed point multiplication on them.

This is a part of implementing fixed point arithmetic in clang where some of the more complex operations will be implemented as intrinsics.


Repository:
  rL LLVM

https://reviews.llvm.org/D55625

Files:
  llvm/docs/LangRef.rst
  llvm/include/llvm/CodeGen/ISDOpcodes.h
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/include/llvm/IR/Intrinsics.td
  llvm/include/llvm/Target/TargetSelectionDAG.td
  llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
  llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
  llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
  llvm/lib/CodeGen/TargetLoweringBase.cpp
  llvm/lib/IR/Verifier.cpp
  llvm/test/CodeGen/X86/umul_fix.ll

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