[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

--- Comment #6 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-01 21:25:35 UTC ---
All testcases compile OK for me with recent mainline.

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-09-01 22:19:09 UTC ---
> All testcases compile OK for me with recent mainline.

For me too with 4.6.3, 4.7.1, and trunk. I get the ICE with 4.4.6 and 4.5.3.

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[uros at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

--- Comment #8 from uros at gcc dot gnu.org 2012-09-02 07:07:50 UTC ---
Author: uros
Date: Sun Sep  2 07:07:45 2012
New Revision: 190854

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190854
Log:
    PR target/42295
    * g++.dg/opt/pr42295.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/opt/pr42295.C
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

Uros Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
      Known to work|                            |4.6.3, 4.7.1
         Resolution|                            |FIXED
   Target Milestone|---                         |4.8.0

--- Comment #9 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-02 07:13:53 UTC ---
Closed as fixed in 4.8.0.

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[abel at gcc dot gnu dot org]

------- Comment #5 from abel at gcc dot gnu dot org  2010-01-14 11:32 -------
With the recent patches to sel-sched, testcases from comments #3 and #4 do not
longer fail for me.  I'm still seeing the spill failure of the original report
though.


-- 

abel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |abel at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[zsojka at seznam dot cz]

------- Comment #4 from zsojka at seznam dot cz  2009-12-16 22:01 -------
Created an attachment (id=19330)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19330&action=view)
simplified testcase

(testcase from comment#3 turned out to be a dup of pr39453)


-- 

zsojka at seznam dot cz changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #19234|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[zsojka at seznam dot cz]

------- Comment #3 from zsojka at seznam dot cz  2009-12-07 15:33 -------
This testcase (the call to f() isn't needed in this case) crashes with 4.4 with
these flags as well:
-O3 -fselective-scheduling2 -fsel-sched-pipelining
-fsel-sched-pipelining-outer-loops
(-O2 is enough for trunk)

The crash message is:
testcase-manual.ii: In function ‘void testsum(ms*)’:
testcase-manual.ii:20: internal compiler error: in init_seqno, at
sel-sched.c:6433 (sel-sched.c:6722 for trunk)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Is this the same issue, or should I open separate bug report? (eg.
-fselective-scheduling2 is not expected to always work on x86_64 as well)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295

[Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-12-07 11:17 -------
-fschedule-insns is quite tricky for x86 targets, if it doesn't work do not use
it.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|rtl-optimization            |target
 GCC target triplet|                            |x86_64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295