[PATCH] Masked Vector Load/Store Intrinsics

[James Molloy]

Hi Elena,

There doesn't seem to be a change to LangRef here. Could you please briefly
describe the semantics of masked load and store intrinsics?

We have strided load/store instructions in NEON that could be modelled with
them, depending on their semantics.

Cheers,

James

On 10 November 2014 13:19, Elena Demikhovsky <elena.demikhovsky at intel.com>
wrote:

> Hi anemet, hfinkel, rob.khasanov, resistor,
>
> Introduced new target-independent intrinsics in order to support masked
> vector loads and stores. The loop vectorizer optimizes loops containing
> conditional memory accesses by generating these intrinsics for existing
> targets AVX2 and AVX-512. The vectorizer asks the target about availability
> of masked vector loads and stores.
> Added SDNodes for masked operations and lowering patterns for X86 code
> generator.
>
> Scalarizer for other targets (not AVX2/AVX-512) will be done in a separate
> patch.
>
> http://reviews.llvm.org/D6191
>
> Files:
>   include/llvm/Analysis/TargetTransformInfo.h
>   include/llvm/CodeGen/ISDOpcodes.h
>   include/llvm/CodeGen/SelectionDAG.h
>   include/llvm/CodeGen/SelectionDAGNodes.h
>   include/llvm/IR/IRBuilder.h
>   include/llvm/IR/Intrinsics.h
>   include/llvm/IR/Intrinsics.td
>   include/llvm/Target/TargetSelectionDAG.td
>   lib/Analysis/TargetTransformInfo.cpp
>   lib/CodeGen/SelectionDAG/DAGCombiner.cpp
>   lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
>   lib/CodeGen/SelectionDAG/LegalizeTypes.h
>   lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
>   lib/CodeGen/SelectionDAG/SelectionDAG.cpp
>   lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
>   lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
>   lib/CodeGen/SelectionDAG/SelectionDAGDumper.cpp
>   lib/IR/Function.cpp
>   lib/IR/IRBuilder.cpp
>   lib/IR/Verifier.cpp
>   lib/Target/X86/X86ISelLowering.cpp
>   lib/Target/X86/X86InstrAVX512.td
>   lib/Target/X86/X86InstrSSE.td
>   lib/Target/X86/X86TargetTransformInfo.cpp
>   lib/Transforms/Vectorize/LoopVectorize.cpp
>   test/CodeGen/X86/masked_memop.ll
>   test/Transforms/LoopVectorize/X86/mask1.ll
>   test/Transforms/LoopVectorize/X86/mask2.ll
>   test/Transforms/LoopVectorize/X86/mask3.ll
>   test/Transforms/LoopVectorize/X86/mask4.ll
>   utils/TableGen/CodeGenTarget.cpp
>   utils/TableGen/IntrinsicEmitter.cpp
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20141110/bfa3fd20/attachment.html>