[PATCH] D10964: [Codegen] Add intrinsics 'hadd*' and corresponding SDNodes for horizontal sum operation.

[Shahid]

ashahid added reviewers: jmolloy, hfinkel, rengolin.
ashahid added a subscriber: llvm-commits.

This adds new intrinsics "hadd_*" for horizontal or reduction sum operation to facilitate efficient code generation for "sum of absolute differences" operation.
The patch also contains the introduction of corresponding SDNodes and basic legalization support.Sanity of the generated code is tested on X86.

This is 2nd of the three patches.The 1st patch can be referred here, http://reviews.llvm.org/D10867


Repository:
  rL LLVM

http://reviews.llvm.org/D10964

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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D10964.29096.patch
Type: text/x-patch
Size: 19182 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20150706/b829189b/attachment.bin>