[all-commits] [llvm/llvm-project] c2ed9f: [AArch64] Use custom lowering for {U, S}INT_TO_FP w...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c2ed9fd054797b2ba1fadb2e202e3afa5ec28d0b
      https://github.com/llvm/llvm-project/commit/c2ed9fd054797b2ba1fadb2e202e3afa5ec28d0b
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2021-11-11 (Thu, 11 Nov 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/fp16-v8-instructions.ll

  Log Message:
  -----------
  [AArch64] Use custom lowering for {U,S}INT_TO_FP with i8.

With fullfp16, it is cheaper to cast the {U,S}INT_TO_FP operand to i16
first, rather than promoting it to i32. The custom lowering for
{U,S}INT_TO_FP  already supports that, it just needs to be used.

Reviewed By: dmgreen

Differential Revision: https://reviews.llvm.org/D113601