[all-commits] [llvm/llvm-project] 9682d0: [ARM] Refactor lower to S[LR]I optimization

[Petre-Ionut Tudor via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 9682d0d5dcc50d4583709bcb2e63f1ad630fe9a0
      https://github.com/llvm/llvm-project/commit/9682d0d5dcc50d4583709bcb2e63f1ad630fe9a0
  Author: Petre-Ionut Tudor <petre-ionut.tudor at arm.com>
  Date:   2020-05-12 (Tue, 12 May 2020)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    M llvm/test/CodeGen/AArch64/arm64-sli-sri-opt.ll

  Log Message:
  -----------
  [ARM] Refactor lower to S[LR]I optimization

Summary:
The optimization has been refactored to fix certain bugs and
limitations. The condition for lowering to S[LR]I has been changed
to reflect the manual pseudocode description of SLI and SRI operation.
The optimization can now handle more cases of operand type and order.

Subscribers: kristof.beyls, hiraditya, danielkiss, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79233