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

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