[all-commits] [llvm/llvm-project] 7751a9: [AArch64][FastISel] Handle call with multiple retu...

[aengelke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7751a91465799d5ff0dc1df5c7d010b16598a0ec
      https://github.com/llvm/llvm-project/commit/7751a91465799d5ff0dc1df5c7d010b16598a0ec
  Author: Alexis Engelke <engelke at in.tum.de>
  Date:   2023-04-27 (Thu, 27 Apr 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64FastISel.cpp
    A llvm/test/CodeGen/AArch64/fast-isel-call-struct-return-fallback.ll
    A llvm/test/CodeGen/AArch64/fast-isel-call-struct-return.ll

  Log Message:
  -----------
  [AArch64][FastISel] Handle call with multiple return regs

The code closely follows the X86 back-end. Applications that make heavy
use of {i64, i64} returns to use two registers strongly benefit from the
reduced number of SelectionDAG fallbacks.

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D148346