[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-04-26
                 CC|                            |dje at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #10 from David Edelsohn <dje at gcc dot gnu.org> ---
Apparently confirmed.

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

David Edelsohn <dje at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |4.6.0

--- Comment #11 from David Edelsohn <dje at gcc dot gnu.org> ---
I do not know when this was fixed, but all of the recent versions that I can
test do not exhibit the failure. GCC 4.6, 4.7, 4.8, 4.9.

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[gccbugzilla at taggedtype dot net]

------- Comment #9 from gccbugzilla at taggedtype dot net  2009-12-30 15:41 -------
I've narrowed it down to this invocation:

g++ -o octonion_test.o -c -mxl-compat ld_break.cpp

So it's caused by some interaction with -mxl-compat


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[gccbugzilla at taggedtype dot net]

------- Comment #8 from gccbugzilla at taggedtype dot net  2009-12-30 15:39 -------
Aha, found a small test case:

int main()
{
  long double d;
  bool b = static_cast<long double>(0) == d;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[gccbugzilla at taggedtype dot net]

------- Comment #7 from gccbugzilla at taggedtype dot net  2009-12-30 15:24 -------
Ok, I ran the delta program for a few days and got this message:

Died at /home/s.somani/thirdparty/delta-2006.08.03/delta line 123, <> line
64641

Doh!

I'll try and see if I can get another test case.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[gccbugzilla at taggedtype dot net]

------- Comment #6 from gccbugzilla at taggedtype dot net  2009-12-22 19:52 -------
(In reply to comment #2)
> It would be nice if could provide a manageable reproducer. Did you try delta
> already?
> 
>   http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction
> 
> Thanks in advance.

Do you know how long it is expected to take? It's been running since you
suggested it. I just want to know if it is guaranteed to finish at some point.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[gccbugzilla at taggedtype dot net]

------- Comment #5 from gccbugzilla at taggedtype dot net  2009-12-22 18:22 -------
U(In reply to comment #4)
> Also you might want to try 4.4.2 which has fixed some TOC related ICEs.
> 

Unfortunately, I am stuck with this version but I will try that to find out if
it does fix the issue to make a case for upgrading.

It seems to be related to the use of long double. Does that make any sense?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465

[Bug target/42465] internal compiler error: in extract_insn, at recog.c:2001

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2009-12-22 18:16 -------
Also you might want to try 4.4.2 which has fixed some TOC related ICEs.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Severity|blocker                     |normal
             Status|WAITING                     |UNCONFIRMED
  GCC build triplet|powerpc-ibm-aix6.1.2.0      |
   GCC host triplet|powerpc-ibm-aix6.1.2.0      |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465