http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53967
--- Comment #16 from bfriesen at simple dot dallas.tx.us 2012-07-19 14:29:10
UTC ---
Is there a way that I can selectively apply the -frename-registers fix to
functions which benefit from it in order to work around the bug until the fix
is widely available? I tried
#pragma GCC optimize ("O3,rename-registers")
and
#pragma GCC optimize ("rename-registers")
as well as the function attribute equivalent and there was no effect. GCC
seems to ignore the request.
I did find another somewhat similar function which benefited significantly from
-frename-registers.