[all-commits] [llvm/llvm-project] 44967f: AMDGPU: Simplify f16 to i64 custom lowering

[petar-avramovic via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 44967fc604519a4a57bbcabbd7c46380b5d1b74c
      https://github.com/llvm/llvm-project/commit/44967fc604519a4a57bbcabbd7c46380b5d1b74c
  Author: Petar Avramovic <Petar.Avramovic at amd.com>
  Date:   2020-07-22 (Wed, 22 Jul 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/fptosi.f16.ll
    M llvm/test/CodeGen/AMDGPU/fptoui.f16.ll

  Log Message:
  -----------
  AMDGPU: Simplify f16 to i64 custom lowering

Range that f16 can represent fits into i32.
Lower as f16->i32->i64 instead of f16->f32->i64
since f32->i64 has long expansion.

Differential Revision: https://reviews.llvm.org/D84166