[all-commits] [llvm/llvm-project] b4b95d: MIPS: fix build from IR files, nan2008 and FpAbi

[YunQiang Su via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b4b95dee3140e7302d6889173386083978611a12
      https://github.com/llvm/llvm-project/commit/b4b95dee3140e7302d6889173386083978611a12
  Author: YunQiang Su <wzssyqa at gmail.com>
  Date:   2023-02-06 (Mon, 06 Feb 2023)

  Changed paths:
    M clang/lib/Driver/ToolChains/Arch/Mips.cpp
    M clang/test/Driver/mips-as.c
    M clang/test/Driver/mips-integrated-as.s
    M llvm/lib/Target/Mips/MipsAsmPrinter.cpp
    A llvm/test/CodeGen/Mips/abiflags-2008-fp64.ll

  Log Message:
  -----------
  MIPS: fix build from IR files, nan2008 and FpAbi

When we use llc or lld to compiler IR files, the features +nan2008 and +fpxx/+fp64 are not used.
Thus wrong format files are produced.

In IR files, the attributes are only set for function while not the whole compile units.
So we extract the attributes from the first function and use it for the whole unit.

isFPXXDefault: for o32, the FPXX should always be the default, no matter about the vendors.
Of course some distributions with FP64 default enabled should be listed explicit.
Let's add them in future if we know about one.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D140270