[Bug tree-optimization/71625] missing strlen optimization on different array initialization style

[sje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71625

Steve Ellcey <sje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sje at gcc dot gnu.org

--- Comment #21 from Steve Ellcey <sje at gcc dot gnu.org> ---
Maybe this is already known but this patch:

+2018-08-13  Martin Sebor  <msebor@redhat.com>
+
+       PR tree-optimization/71625
+       * c-common.c (braced_list_to_string): New function.
+       * c-common.h (braced_list_to_string): Declare it.
+


Caused two regressions on aarch64:

FAIL: gcc.target/aarch64/vclz.c scan-assembler-times clz\\tv[0-9]+.16b,
v[0-9]+.16b 2
FAIL: gcc.target/aarch64/vneg_s.c scan-assembler-times neg\\tv[0-9]+.16b,
v[0-9]+.16b 1
FAIL: gcc.target/aarch64/vneg_s.c scan-assembler-times neg\\tv[0-9]+.8b,
v[0-9]+.8b 1