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| author | Fangrui Song <i@maskray.me> | 2023-08-03 19:04:53 -0700 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2023-08-03 19:04:53 -0700 |
| commit | 5fd5f8027fa196913138a34082a933abd5be0b4e (patch) | |
| tree | 0eddcaf33d04b9dd44a27f66578f445bb5a70992 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | fcf1a1022a08e28716da98d5983205337435a85c (diff) | |
| download | llvm-5fd5f8027fa196913138a34082a933abd5be0b4e.zip llvm-5fd5f8027fa196913138a34082a933abd5be0b4e.tar.gz llvm-5fd5f8027fa196913138a34082a933abd5be0b4e.tar.bz2 | |
[Driver] Mark m_x86_Features_Group options as TargetSpecific
so that they lead to an error when compiled for non-x86 targets.
Follow-up to D151590.
```
% aarch64-linux-gnu-gcc -c -mavx a.c
aarch64-linux-gnu-gcc: error: unrecognized command-line option ‘-mavx’
% clang --target=aarch64-unknown-linux-gnu -c -mavx a.c # without this patch
clang: warning: argument unused during compilation: '-mavx' [-Wunused-command-line-argument]
...
% clang --target=aarch64-unknown-linux-gnu -c -mavx a.c # with this patch
clang: error: unsupported option '-mavx' for target 'aarch64-unknown-linux-gnu'
```
As a workaround for https://github.com/llvm/llvm-project/issues/63270, we don't
report an error for -msse4.2.
Reviewed By: pengfei, skan
Differential Revision: https://reviews.llvm.org/D156962
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions