On 23/06/2020 17:17, Richard Sandiford wrote:
Matthew Malcomson <matthew.malcom...@arm.com> writes:--- a/gcc/config/aarch64/aarch64-protos.h +/* Ensure there are no BR or RET instructions which are not directly followed + by a speculation barrier. */ +/* { dg-final { scan-assembler-not "\t(br|ret|retaa|retab)\tx\[0-9\]\[0-9\]?\n\t(?!dsb\tsy\n\tisb|sb)" } } */Isn't the “sb” alternative invalid given the -march option? Probably slightly easier to read if the regexp is quoted using {…} rather than "…". Same for the other tests.
Just to check before I respin: Using {} instead of "" means I need to replace \t with a literal tab -- do you still prefer it?
