[all-commits] [llvm/llvm-project] 65ae09: [PowerPC] Fix behavior of rldimi/rlwimi/rlwnm buil...

[Qiu Chaofan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 65ae09eeb6773b14189fc67051870c8fc4eb9ae3
      https://github.com/llvm/llvm-project/commit/65ae09eeb6773b14189fc67051870c8fc4eb9ae3
  Author: Qiu Chaofan <qiucofan at cn.ibm.com>
  Date:   2024-03-18 (Mon, 18 Mar 2024)

  Changed paths:
    M clang/lib/Sema/SemaChecking.cpp
    M clang/test/CodeGen/PowerPC/builtins-ppc-xlcompat-error.c
    M clang/test/CodeGen/PowerPC/builtins-ppc-xlcompat-rotate.c
    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] Fix behavior of rldimi/rlwimi/rlwnm builtins (#85040)

rldimi is 64-bit instruction, so the corresponding builtin should not
be available in 32-bit mode. Rotate amount should be in range and
cases when mask is zero needs special handling.

This change also swaps the first and second operands of rldimi/rlwimi
to match previous behavior. For masks not ending at bit 63-SH,
rotation will be inserted before rldimi.



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