[all-commits] [llvm/llvm-project] 57ca65: [AArch64] Add instruction costs for FP_TO_UINT and...

[david-arm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 57ca65e21e9a48040e929a506a259ee2e4b42088
      https://github.com/llvm/llvm-project/commit/57ca65e21e9a48040e929a506a259ee2e4b42088
  Author: David Sherwood <david.sherwood at arm.com>
  Date:   2021-04-21 (Wed, 21 Apr 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/AArch64/sve-fptoi.ll

  Log Message:
  -----------
  [AArch64] Add instruction costs for FP_TO_UINT and FP_TO_SINT with half types

We were missing some instruction costs when converting vectors of
floating point half types into integers, so I've added those here.
I also manually generated assembly code for each FP->int case and
looked at the number of instructions generated, which meant
adjusting some of the existing costs too.

I've updated an existing test to reflect the new costs:

  Analysis/CostModel/AArch64/sve-fptoi.ll

Differential Revision: https://reviews.llvm.org/D99935