[PATCH] D45588: Start reserving x18 by default on Android targets.

[Peter Collingbourne via Phabricator via llvm-commits]

pcc added a comment.

In https://reviews.llvm.org/D45588#1066620, @kcc wrote:

> Don't you need a test?


Probably the easiest way to test this is to check that `clang -fsanitize=shadow-call-stack` does not complain about needing `-ffixed-x18`, so that is what I've done.


https://reviews.llvm.org/D45588