[PATCH] D27899: Target specific memory node in DAG.

[Elena Demikhovsky via Phabricator via llvm-commits]

delena created this revision.
delena added reviewers: craig.topper, igorb, RKSimon.
delena added a subscriber: llvm-commits.
delena set the repository for this revision to rL LLVM.

I added API for creation a target specific memory node in DAG. Today, all memory nodes are common for all targets and their constructors are located in SelectionDAG.cpp.
There are some cases in X86 where we need to create a special node - truncation-with-saturation store, float-to-half-store. 
In the current patch I added truncation-with-saturation nodes and I'm using them for intrinsics. In the future I plan to implement DAG lowering for  truncation-with-saturation pattern.


Repository:
  rL LLVM

https://reviews.llvm.org/D27899

Files:
  ../include/llvm/CodeGen/SelectionDAG.h
  ../lib/Target/X86/X86ISelLowering.cpp
  ../lib/Target/X86/X86ISelLowering.h
  ../lib/Target/X86/X86InstrAVX512.td
  ../lib/Target/X86/X86InstrFragmentsSIMD.td
  ../lib/Target/X86/X86IntrinsicsInfo.h
  ../test/CodeGen/X86/avx512-intrinsics.ll
  ../test/CodeGen/X86/avx512bw-intrinsics.ll
  ../test/CodeGen/X86/avx512bwvl-intrinsics.ll
  ../test/CodeGen/X86/avx512vl-intrinsics.ll

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