[all-commits] [llvm/llvm-project] 03aa96: [CostModel][X86][ARM] Teach getCastInstrCost to in...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 03aa967c0d38313ac124f7550314879dbae9ba9d
      https://github.com/llvm/llvm-project/commit/03aa967c0d38313ac124f7550314879dbae9ba9d
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-04-24 (Fri, 24 Apr 2020)

  Changed paths:
    M llvm/include/llvm/CodeGen/BasicTTIImpl.h
    M llvm/test/Analysis/CostModel/ARM/cast.ll
    M llvm/test/Analysis/CostModel/X86/fptosi.ll

  Log Message:
  -----------
  [CostModel][X86][ARM] Teach getCastInstrCost to include the splitting factor when handling operations that type legalize to the same number of subvectors or scalar components

Previously, we just always returned 1. But that ignores that we have to do the operation for each subvector or scalar component.

Differential Revision: https://reviews.llvm.org/D78824