[all-commits] [llvm/llvm-project] 0c2b73: [LoongArch] Support for varargs

[wangleiat via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0c2b738f8f1d252d31f1075f040af664802b9bac
      https://github.com/llvm/llvm-project/commit/0c2b738f8f1d252d31f1075f040af664802b9bac
  Author: wanglei <wanglei at loongson.cn>
  Date:   2022-08-08 (Mon, 08 Aug 2022)

  Changed paths:
    M llvm/lib/Target/LoongArch/LoongArchFrameLowering.cpp
    M llvm/lib/Target/LoongArch/LoongArchFrameLowering.h
    M llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
    M llvm/lib/Target/LoongArch/LoongArchISelLowering.h
    A llvm/test/CodeGen/LoongArch/vararg.ll

  Log Message:
  -----------
  [LoongArch] Support for varargs

This patch ensures the `$fp` always points to the bottom of the vararg
spill region.
Includes support for expand `ISD::DYNAMIC_STACKALLOC`.

Differential Revision: https://reviews.llvm.org/D130250