[PATCH] D133109: [LLVM][ARM] Remove options for armv2, 2A, 3 and 3M

Thu Sep 1 09:56:51 PDT 2022

nickdesaulniers accepted this revision.
nickdesaulniers added a comment.

For the Linux kernel, we're only building v5+ continuously.

It looks like the Linux kernel supports v4+ and v3m (for Acorn Risc-PC (Intel StrongARM(R) SA-110)). We've never been able to build that target, and it's not high ROI to do so.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/Makefile#n74

> GCC no longer supports Arm architecture prior to v4 so it is likely the alternative of adding support for v3 is not worth it.

Oh, looks like the kernel already has a check for (6 <= GCC < 9.1), so there's no risk of breakage on our side.  Thanks for the heads up though!
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2abd6e34fcf3bd9f9ffafcaa47cdc3ed443f9add

Consider amending the commit message to mention the specific version of GCC that support for v3- was removed from.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133109/new/

https://reviews.llvm.org/D133109