http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49226
--- Comment #2 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- Created attachment 31497 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31497&action=edit attempt to avoid invalid hard regs This patch uses the equivalent integer modes instead of :XC and :XF when passing arguments in GPRs. I worked through the before and after asm and they seem to be equivalent, but I'd appreciate it if someone with access to ia64 could try it out. The after asm seems to be worse, but this kind of usage shouldn't occur in performance-critical code anyway. I think if the speed :XC and :XF GPR handling is a concern we'd be better off making the modes valid.
