[all-commits] [llvm/llvm-project] 39e305: [Driver][Sparc] Default to -mcpu=v9 for 32-bit Lin...

[Rainer Orth via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 39e30508a7f6ec5477b11611946a491af5ebdeda
      https://github.com/llvm/llvm-project/commit/39e30508a7f6ec5477b11611946a491af5ebdeda
  Author: Rainer Orth <ro at gcc.gnu.org>
  Date:   2024-09-21 (Sat, 21 Sep 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Driver/ToolChains/Arch/Sparc.cpp
    M clang/test/Preprocessor/predefined-arch-macros.c

  Log Message:
  -----------
  [Driver][Sparc] Default to -mcpu=v9 for 32-bit Linux/sparc64 (#109278)

While working on supporting PR #109101 on Linux/sparc64, I was reminded
that `clang -m32` still defaults to generating V8 code, although the
64-bit kernel requires a V9 CPU.

This patch corrects that.

Tested on `sparc64-unknown-linux-gnu`, `x86_64-pc-linux-gnu`,
`sparcv9-sun-solaris2.11`, and `amd64-pc-solaris2.11`.



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