[Bug middle-end/24279] SEGV at reload.c:2400 with -O2

[kazu at gcc dot gnu dot org]

--- Comment #8 from kazu at gcc dot gnu dot org  2006-05-08 16:32 ---
Works as of 4.1 according to #7.


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kazu at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution||FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24279

[Bug middle-end/24279] SEGV at reload.c:2400 with -O2

[kazu at gcc dot gnu dot org]

--- Comment #7 from kazu at gcc dot gnu dot org  2005-11-19 21:13 ---
Jonathan,

The testcase seems to work with GCC 4.1.

As far as getting the testcase into the testsuite, you need to post a patch
first.
The best thing to do at this point is to reduce the testcase so that it will be
easier to analyze what's going on.


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kazu at gcc dot gnu dot org changed:

   What|Removed |Added

 CC||kazu at gcc dot gnu dot org
  Known to work||4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24279

[Bug middle-end/24279] SEGV at reload.c:2400 with -O2

[shap at eros-os dot org]

--- Comment #6 from shap at eros-os dot org  2005-11-05 19:44 ---
I know you folks have many other things to do, but any further ideas on this
one?  If not, what can I do to help get the test case confirmed and into the
regression suite?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24279

[Bug middle-end/24279] SEGV at reload.c:2400 with -O2

[shap at eros-os dot org]

--- Comment #5 from shap at eros-os dot org  2005-10-08 22:19 ---
The patch from PR 23043 does NOT resolve this. Same error, reported at the same
place in reload.c.

Given the number of other mode-related bugs against m68k, I was suspicious of
that, but when I re-run under gdb, the value of val.start at the time of the
fault is improbably high (1708), and then I get

(gdb) p hard_regno_nregs[val.start]
Cannot access memory at address 0x831b0d0

Not sure if this helps suggest anything.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24279

[Bug middle-end/24279] SEGV at reload.c:2400 with -O2

[shap at eros-os dot org]

--- Comment #4 from shap at eros-os dot org  2005-10-08 21:58 ---
Testing the patch now. I'll report back shortly.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24279

[Bug middle-end/24279] SEGV at reload.c:2400 with -O2

[pinskia at gcc dot gnu dot org]

--- Comment #3 from pinskia at gcc dot gnu dot org  2005-10-08 21:24 ---
I think this might be a duplicate of PR 23043 which is fixed for 4.0.3, it
missed 4.0.2 by a mistake.  Can you try a cvs version of the 4.0 branch to see
if this is fixed? Or try the patch which is referenced in that PR?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24279