arc: Don't build arc-analyze-prologue.S with -g

arc-analyze-prologue.S test does not contain debug information thus
it must be compiled without -g option. Otherwise GDB will try to
unwind frames using debug information (which does not exist for .S
code!) instead of analyzing frames manually.

Approved-By: Shahab Vahedi <shahab@synopsys.com>
1 file changed