[PATCH] D63105: Add --print-supported-cpus flag for clang.

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


================
Comment at: clang/docs/ClangCommandLineReference.rst:613
+
+.. option:: -mcpu=<cpu>
+
----------------
kongyi wrote:
> L615 should be after L609.
this line seems out-of-place, it's already documented in `Target-dependent compilation options` section


================
Comment at: llvm/lib/MC/MCSubtargetInfo.cpp:143
+
+  errs() << "Use -mcpu to specify the target processor.\n"
+            "For example, clang --target=aarch64-unknown-linux-gui -mcpu=cortex-a35\n";
----------------
Is this correct? Is this due to the `--target`?
I've never ever seen that flag used, on x86 `-march`/`-mtune` is pretty much always used.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63105/new/

https://reviews.llvm.org/D63105