[all-commits] [llvm/llvm-project] bc3606: [AArch64][GlobalISel] Assign FPR banks to loads wh...

[AE via All-commits]

  Branch: refs/heads/co1-master
  Home:   https://github.com/llvm/llvm-project
  Commit: bc3606d0b27b2ba13a826b5c3fcba81f7e737387
      https://github.com/llvm/llvm-project/commit/bc3606d0b27b2ba13a826b5c3fcba81f7e737387
  Author: Amara Emerson <amara at apple.com>
  Date:   2021-01-14 (Thu, 14 Jan 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/GISel/AArch64RegisterBankInfo.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/regbank-fp-use-def.mir

  Log Message:
  -----------
  [AArch64][GlobalISel] Assign FPR banks to loads which are used by integer->float conversions.

G_[US]ITOFP users of loads on AArch64 can operate on both gpr and fpr banks for scalars.
Because of this, if their source is a load, then that load can be assigned to an fpr
bank and therefore avoid having to do a cross bank copy via a gpr->fpr conversion.

Differential Revision: https://reviews.llvm.org/D94701