------- Comment #11 from dj at redhat dot com 2008-07-16 19:08 ------- Subject: Re: [4.3/4.4 Regression] newlib:libm/math/k_rem_pio2.c fails in reload
Last night's builds showed a flaw in the patch. The "++rii" address created by m32c_legitimize_reload_address is *not* legitimate, it's used as a marker for addresses that need to be reloaded into an address register. If I fix m32c_print_operand() to print those, it ends up printing an address that exceeds the displacement range of the FB register: regex.s:11903: Error: unrecognized keyword/register name `mov.w mem0,-198[fb]' The original idea was to reload $fb of $sp itself into an address register, and use a displacement off that, so that only one address register is needed for all frame address reloads. I never quite got gcc to do it right. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36827
