[all-commits] [llvm/llvm-project] 8e6fc1: [AArch64][SVE] Add lowering for llvm.maxnum|minnum...

[huihzhang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8e6fc1f97eb9a63780158470596ddbec3d0ecd59
      https://github.com/llvm/llvm-project/commit/8e6fc1f97eb9a63780158470596ddbec3d0ecd59
  Author: Huihui Zhang <huihuiz at quicinc.com>
  Date:   2020-12-08 (Tue, 08 Dec 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/sve-fp.ll

  Log Message:
  -----------
  [AArch64][SVE] Add lowering for llvm.maxnum|minnum for scalable type.

LLVM intrinsic llvm.maxnum|minnum is overloaded intrinsic, can be used on any
floating-point or vector of floating-point type.
This patch extends current infrastructure to support scalable vector type.

This patch also fix a warning message of incorrect use of EVT::getVectorNumElements()
for scalable type, when DAGCombiner trying to split scalable vector.

Reviewed By: sdesmalen

Differential Revision: https://reviews.llvm.org/D92607