[all-commits] [llvm/llvm-project] 906580: [PowerPC] Add intrinsics for rldimi/rlwimi/rlwnm (...

[Qiu Chaofan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 906580bad3a68e3877f4ff7ac2b7fc1b7ee84fd5
      https://github.com/llvm/llvm-project/commit/906580bad3a68e3877f4ff7ac2b7fc1b7ee84fd5
  Author: Qiu Chaofan <qiucofan at cn.ibm.com>
  Date:   2024-03-04 (Mon, 04 Mar 2024)

  Changed paths:
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/test/CodeGen/PowerPC/builtins-ppc-xlcompat-rotate.c
    M llvm/include/llvm/IR/IntrinsicsPowerPC.td
    M llvm/lib/Target/PowerPC/PPCISelLowering.cpp
    M llvm/test/CodeGen/PowerPC/rldimi.ll
    M llvm/test/CodeGen/PowerPC/rlwimi.ll
    M llvm/test/CodeGen/PowerPC/rlwinm.ll

  Log Message:
  -----------
  [PowerPC] Add intrinsics for rldimi/rlwimi/rlwnm (#82968)

These builtins are already there in Clang, however current codegen may
produce suboptimal results due to their complex behavior. Implement them
as intrinsics to ensure expected instructions are emitted.



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