[all-commits] [llvm/llvm-project] 172f1f: [AArch64][SVE]Add cost model for vector reduce for...

[CarolineConcatto via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 172f1f8952c977c0101ba19e6ecb9474aa3bdd4b
      https://github.com/llvm/llvm-project/commit/172f1f8952c977c0101ba19e6ecb9474aa3bdd4b
  Author: Caroline Concatto <caroline.concatto at arm.com>
  Date:   2021-01-19 (Tue, 19 Jan 2021)

  Changed paths:
    M llvm/include/llvm/CodeGen/BasicTTIImpl.h
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.h
    A llvm/test/Analysis/CostModel/AArch64/sve-getIntrinsicInstrCost-vector-reduce.ll

  Log Message:
  -----------
  [AArch64][SVE]Add cost model for vector reduce for scalable vector

This patch computes the cost for vector.reduce<operand> for scalable vectors.
The cost is split into two parts:  the legalization cost and the horizontal
reduction.

Differential Revision: https://reviews.llvm.org/D93639