http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48345
--- Comment #2 from Vladimir Makarov <vmakarov at redhat dot com> 2011-03-29 23:59:08 UTC --- (In reply to comment #0) > > It seems that ira-color.c:assign_hard_reg chooses a register > of which corresponding bit of ira_prohibited_class_mode_regs > [FP_REGS][DFmode] is set. The patch below looks to work for me, > though I'm suspecting the real problem is in the target side. > > --- ORIG/trunk/gcc/ira-color.c 2011-03-29 10:08:17.000000000 +0900 > +++ LOCAL/trunk/gcc/ira-color.c 2011-03-29 15:09:06.000000000 +0900 > @@ -1692,6 +1692,9 @@ assign_hard_reg (ira_allocno_t a, bool r > && FIRST_STACK_REG <= hard_regno && hard_regno <= LAST_STACK_REG) > continue; > #endif > + if (TEST_HARD_REG_BIT (ira_prohibited_class_mode_regs[aclass][mode], > + hard_regno)) > + continue; > if (! check_hard_reg_p (a, hard_regno, > conflicting_regs, profitable_hard_regs)) > continue; The patch is ok for me. This code was lost accidentally on ira-improv branch. Could you commit the patch (of course with a proper changelog entry). I am approving the patch. Thanks.
