On Thu, Oct 25, 2012 at 12:57 PM, Richard Sandiford <rdsandif...@googlemail.com> wrote: > This patch is an attempt at the routine sketched here: > > http://gcc.gnu.org/ml/gcc-patches/2012-10/msg01016.html > > for decomposing addresses into constituent parts. It applies > on top of the patches I sent out earlier today. To summarise > that message, the main point is to have an address description > in which we know how the individual parts relate to one another. > > If the patch looks OK, I'd like to try doing the same for IRA. > Maybe other passes could use the routines too; I'm not sure. > > An alternative to having a generic routine would be to add a target hook. > However, the whole target address interface could do with some clean-up, > so I'd rather not add a new hook until either (a) it becomes absolutely > necessary, because of some target weirdness I don't know about or > (b) there's a coordinated plan to handle things like legitimacy, > base classes, and index classes. > > I'm hoping this will help with the x32 problems that HJ is seeing. > Like Vlad, I don't have a set-up to try for certain, but I tried
Do you have a git branch I can try? When I applied your patch on the current trunk, I got patching file Makefile.in patching file rtl.h patching file rtlanal.c patching file lra-constraints.c Hunk #3 FAILED at 464. Hunk #4 succeeded at 1319 (offset -22 lines). Hunk #5 succeeded at 1505 (offset -22 lines). Hunk #6 FAILED at 2380. Hunk #7 FAILED at 2499. Hunk #8 succeeded at 2468 (offset -88 lines). Hunk #9 FAILED at 2583. Hunk #10 FAILED at 2648. Hunk #11 succeeded at 2595 with fuzz 1 (offset -77 lines). Hunk #12 FAILED at 2690. Hunk #13 FAILED at 2716. 7 out of 13 hunks FAILED -- saving rejects to file lra-constraints.c.rej Here are instructions how to build x32 glibc: http://sourceware.org/glibc/wiki/x32 You only need x32 glibc to enable GCC x32 multilib on Linux/x86-64. Thanks. -- H.J.
