[PATCH] D93221: [ARM] Add clang command line support for -mharden-sls=

[Kristof Beyls via Phabricator via cfe-commits]

kristof.beyls added a comment.

In D93221#2459903 <https://reviews.llvm.org/D93221#2459903>, @ostannard wrote:

> Why is this restricted to v7-A or later? The DSB and ISB instructions have existed since v6T2 and v6M.

This mitigation is never needed for M-class cores nor for v6T2.
By restricting it to v7-A it's simpler to explain in the diagnostic for which targets this is supported.
I thought that overall this was a better trade-off.


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  https://reviews.llvm.org/D93221/new/

https://reviews.llvm.org/D93221