------- Comment #12 from dave at hiauly1 dot hia dot nrc dot ca 2007-11-24 22:14 ------- Subject: Re: [4.2/4.3 Regression] ICE in reload_cse_simplify_operands, at postreload.c:392
> > I haven't seen the paradoxical subreg in a float/fix conversion > > insns with the current patch. I did see this in some of the first > > versions of pa_cannot_change_mode_class. I think I eliminated > > this problem by prevent mode changes in the FP registers: > > > > if (MAYBE_FP_REG_CLASS_P (class)) > > return true; > > > > Due you think this problem is latent? > > On SPARC or on the PA even with CANNOT_CHANGE_MODE_CLASS? I meant on the PA using the CANNOT_CHANGE_MODE_CLASS patch. What I saw when mode changes were allowed was something like the following: set (subreg:SI (mem:HI)) (fix:SI (fix:SF)) where the mem was a spilled HImode pseudo. At the time, I thought I had stopped mode changes to QImode/HImode in the FPU registers but I believe they got tied to DImode. Dave -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34091 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
