On Tue, 18 Oct 2016, Martin Storsjö wrote:

x29 (FP) is a callee saved register and should be restored on
return. Instead of backing up x29 and restoring it here, back up
sp in a register that we are allowed to overwrite.

This fixes crashes in checkasm on aarch64 since f1b3e1313851.
For some reason, gcc builds didn't crash, but clang builds do.
tests/checkasm/aarch64/checkasm.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

OK'd by Janne on irc.

// Martin
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