[Bug target/21616] [3.4 only] ICE: unable to find a register to spill in class `FLOAT_REGS'

["guptan at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>]

------- Additional Comments From guptan at hotmail dot com  2005-05-21 00:28 -------
Thanks Andrew.

[17:00] <ngupta> pinskia, yes I am trying to get an answer if PR21616 existed on
gcc-4.0 :)
[17:01] <pinskia> it might be worked around by optimizing it better :)
[17:01] <ngupta> I suspect its already fixed in rs6000.md, but dont want to go
over the whole setup thingie
[17:02] <pinskia> let me try it
[17:02] <ngupta> than I rather backport that from gcc-4.0
[17:05] <pinskia> did you try the patch for PR 15286?
[17:07] <ngupta> nope, lemme look
[17:08] <pinskia> oh, that will not help
[17:08] <pinskia> I know which bug this is, it has to do with ld not taking any
old offset but only aligned offsets
[17:08] <pinskia> let me find that patch
[17:08] <-- rosalesa has quit ("Leaving")
[17:13] <ngupta> oh ok, i m waiting
[17:14] --> jk- (~jk@toolbox.otago.ac.nz) has joined #ppc64
[17:14] <pinskia> ngupta: the patch for PR 13674 is the one which really fixed
the problem I think
[17:15] <pinskia> there is a workaround on the 3.4 branch for PR 13674 but it
looks like it does not work for this testcase :(
[17:16] <ngupta> yup, thats what I was abt to try
[17:16] <ngupta> -fnew-ra
[17:17] <pinskia> in fact I think the work around is causing the ICE to show up,
it is trying to use FP register because that is what the work around says to use
[17:19] <ngupta> so back to, could u try gcc-4.0
[17:20] <pinskia> I did and it worked
[17:20] <ngupta> I have started a build with this patch anyway
[17:20] <pinskia> you might need to revert the work around though
[17:20] <ngupta> oh ok, u mean patch for PR13674?
[17:21] <pinskia> the one which is on the 3.4 branch yes
[17:22] <ngupta> ok, got it
[17:22] <ngupta> thx, will update the bug after testing it
[17:24] <pinskia> 2004-03-10  Alan Modra  <amodra@bigpond.net.au>
[17:24] <pinskia>             Hartmut Penner  <hpenner@de.ibm.com>
[17:25] <ngupta> BTW, I will also CC dje/hpenner on this bug.
[17:25] <pinskia> one from http://gcc.gnu.org/ml/gcc-cvs/2004-03/msg00482.html
by the way

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           What    |Removed                     |Added
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                 CC|                            |hpenner at de dot ibm dot
                   |                            |com, dje at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21616