Vladimir, The wrong PR 4435 was in referrenced the commit
--- On Fri, 8/4/11, Jeff Law <l...@redhat.com> wrote: > From: Jeff Law <l...@redhat.com> > Subject: Re: patch to fix PR 48435 > To: "Vladimir Makarov" <vmaka...@redhat.com> > Cc: "gcc-patches" <gcc-patches@gcc.gnu.org> > Date: Friday, 8 April, 2011, 16:18 > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 04/07/11 13:41, Vladimir Makarov wrote: > > The following patch should solve problem > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48435. > It might solve other > > latest IRA problems too including performance related > ones. The patch > > is for targets which require some values to be placed > in hard registers > > starting with an even (odd) hard registers. > > > > I already addressed an analogous problem recently and > the patch I sent > > that time although solved some problems it created > even more new > > problems. I should acknowledge this. > > > > The problem was in that profitable hard regs were used > for colorability > > criterion and finding hard registers where allocno > values can be resided > > but *also* as starting allocno hard registers. > It resulted in spilling > > allocnos which should be placed in multi-registers > starting on a > > specific border because profitable hard registers were > only starting > > registers and when we calculated number of available > hard registers > > multi-register allocnos can not fit only in their > starting hard registers. > > > > The following patch was successfully bootstrapped on > x86/x86-64 and on > > i686 with H.J.'s autotester options. > > > > OK to commit? > > > > 2011-04-07 Vladimir Makarov <vmaka...@redhat.com> > > > > PR 4435 > > * ira-color.c > (setup_profitable_hard_regs): Add comments. > > Don't take prohibited hard > regs into account. > > > (setup_conflict_profitable_regs): Rename > to > > get_conflict_profitable_regs. > > (check_hard_reg_p): Check > prohibited hard regs. > OK. > jeff > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.11 (GNU/Linux) > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ > > iQEcBAEBAgAGBQJNnycrAAoJEBRtltQi2kC70DsH/A7fnYlawxDvYPeULGb1ctQD > 6LYWBWhJY4UDTiUNjLEzwALpq2XccVzubz1KEMI3wOndIHHYM2ykbsgTqCKmXqhf > ZthBjzNUtE/i7jSxK8JK3SEShqs2j7vaAvlkUKbdF7O61rhQap8MRnD2umHfrbet > PFea7MedpaC96mazzoyUWlzwWCt2CQhOlMFGlC44bxB1FrKy0nUjeIM7kWqjqG5W > Y9lV8RlC4O2cLST5qHpqtssLSO4omPlKsEUBEKW4E/87UCoFAxP0n8NOZ1EFgMsc > 3SlhSv+Dpinfh79gjHXt5+CH33bXTecf8Jfyd89Rn6huzL9OhAXJy+MjMi6cBm0= > =KSaH > -----END PGP SIGNATURE----- >
