http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49519
Ian Lance Taylor <ian at airs dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ian at airs dot com
--- Comment #27 from Ian Lance Taylor <ian at airs dot com> 2011-07-12 04:37:01
UTC ---
This patch seems too conservative and it appears that it will cause the
compiler to miss all tailcalls with pointer arguments. It only matters if the
register points to the incoming parameters, which can only happen in unusual
cases. We should be able to determine that reliably. Janis, did you open a PR
for the missing optimization? I didn't see one.
